Kazakhstan's market for producing minced meat semi-finished products is not sufficiently developed. At the same time, the demand for products of the “economy” segment is growing. Providing balanced recipes for semi-finished meat products, with a rational combination of raw materials of animal and vegetable origin, is a significant problem. Chopped meat cutlets with high nutritional and low energy value have been developed, which are not inferior in functional and technological properties and sensory characteristics to traditional products. Pork and wheat bread were excluded from the recipes, with a replacement for lamb or broiler chicken meat in combination with a protein-carbohydrate composition (PCC) of the composition: soy minced okara – chickpea flour – whey protein concentrate (WPC 80) in a ratio of 9:5:10, at 1:3 hydration. The rational share of the introduction of PCC into the recipe of cutlets was 25% for minced beef – the meat of broiler chickens and 20% for minced beef – lamb. The studied samples of PCC, control minced meat with pork and bread, and two modified minced meat recipes for cutlets have similar values of the mass ratio of water fractions at three stages of dehydration during heat treatment. PCC particles are evenly distributed between the muscle fibers in minced meat. It has been shown that the developed PCC can serve as a substitute for minced meat not only in terms of the balance of the amino acid composition of the total protein but also in terms of the percentage of moisture with different forms of communication with the product, influencing the microstructure and consistency of raw semi-finished products of the combined composition, the consistency and juiciness of fried cutlets. According to the developed recipes, the mass fraction of protein in cutlets increased from 13.8 to 19.1-19.8%; fat decreased from 12.6 to 9.5-9.7%.
{"title":"The use of protein-carbohydrate composition of okara, chickpea flour and whey protein in the technology of minced meat cutlets","authors":"Mamura Absalimova, Aigul Tayeva, Lyazzat Baybolova, Irina Glotova, Nadezhda Galochkina, Sergey Shakhov","doi":"10.5219/1916","DOIUrl":"https://doi.org/10.5219/1916","url":null,"abstract":"Kazakhstan's market for producing minced meat semi-finished products is not sufficiently developed. At the same time, the demand for products of the “economy” segment is growing. Providing balanced recipes for semi-finished meat products, with a rational combination of raw materials of animal and vegetable origin, is a significant problem. Chopped meat cutlets with high nutritional and low energy value have been developed, which are not inferior in functional and technological properties and sensory characteristics to traditional products. Pork and wheat bread were excluded from the recipes, with a replacement for lamb or broiler chicken meat in combination with a protein-carbohydrate composition (PCC) of the composition: soy minced okara – chickpea flour – whey protein concentrate (WPC 80) in a ratio of 9:5:10, at 1:3 hydration. The rational share of the introduction of PCC into the recipe of cutlets was 25% for minced beef – the meat of broiler chickens and 20% for minced beef – lamb. The studied samples of PCC, control minced meat with pork and bread, and two modified minced meat recipes for cutlets have similar values of the mass ratio of water fractions at three stages of dehydration during heat treatment. PCC particles are evenly distributed between the muscle fibers in minced meat. It has been shown that the developed PCC can serve as a substitute for minced meat not only in terms of the balance of the amino acid composition of the total protein but also in terms of the percentage of moisture with different forms of communication with the product, influencing the microstructure and consistency of raw semi-finished products of the combined composition, the consistency and juiciness of fried cutlets. According to the developed recipes, the mass fraction of protein in cutlets increased from 13.8 to 19.1-19.8%; fat decreased from 12.6 to 9.5-9.7%.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136318641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nano-biosensors are rising as a promising technology for ensuring the protection and high-quality of meals merchandise. They offer excessive sensitivity, selectivity, and speedy reaction, making them ideal for detecting contaminants, pathogens, and first-rate signs in meals samples. This up to date evaluate affords a complete evaluation of recent improvements in nano-biosensor technology for meals great and safety warranty. The evaluate covers the essential standards and kinds of nano-biosensors typically utilized in meals evaluation, exploring various nanomaterials and their unique homes and sensing talents. It also discusses mixing nanomaterials with biological reputation elements, antibodies, enzymes, and DNA aptamers to enhance sensor performance. The software of nano-biosensors in detecting chemical contaminants, which includes pesticides, heavy metals, and mycotoxins, is drastically protected. Nanomaterials allow ultrasensitive detection of these contaminants, even at trace stages, ensuring the protection and compliance of meal products. The review also explores the usage of nano-biosensors for rapid identification and quantification of foodborne pathogens, such as microorganisms, viruses, and parasites, allowing on-web page pathogen detection and timely interventions to prevent outbreaks. Additionally, the review highlights the tracking of meals satisfactory signs of using nano-biosensors, including freshness, spoilage, and dietary composition. Accurate assessment of those parameters offers treasured information to manage and predict shelf-life. Overall, the advancements in nano-biosensor generation maintain high-quality promise for ensuring the integrity of meals products, defensive public fitness, and assembly regulatory standards.
{"title":"Advancements in nano bio sensors for food quality and safety assurance – a review","authors":"Zhainagul Kakimova, Duman Orynbekov, Klara Zharykbasova, Aitbek Kakimov, Yerlan Zharykbasov, Gulmira Mirasheva, Sandugash Toleubekova, Alibek Muratbayev, Godswill Ntsomboh Ntsefong","doi":"10.5219/1903","DOIUrl":"https://doi.org/10.5219/1903","url":null,"abstract":"Nano-biosensors are rising as a promising technology for ensuring the protection and high-quality of meals merchandise. They offer excessive sensitivity, selectivity, and speedy reaction, making them ideal for detecting contaminants, pathogens, and first-rate signs in meals samples. This up to date evaluate affords a complete evaluation of recent improvements in nano-biosensor technology for meals great and safety warranty. The evaluate covers the essential standards and kinds of nano-biosensors typically utilized in meals evaluation, exploring various nanomaterials and their unique homes and sensing talents. It also discusses mixing nanomaterials with biological reputation elements, antibodies, enzymes, and DNA aptamers to enhance sensor performance. The software of nano-biosensors in detecting chemical contaminants, which includes pesticides, heavy metals, and mycotoxins, is drastically protected. Nanomaterials allow ultrasensitive detection of these contaminants, even at trace stages, ensuring the protection and compliance of meal products. The review also explores the usage of nano-biosensors for rapid identification and quantification of foodborne pathogens, such as microorganisms, viruses, and parasites, allowing on-web page pathogen detection and timely interventions to prevent outbreaks. Additionally, the review highlights the tracking of meals satisfactory signs of using nano-biosensors, including freshness, spoilage, and dietary composition. Accurate assessment of those parameters offers treasured information to manage and predict shelf-life. Overall, the advancements in nano-biosensor generation maintain high-quality promise for ensuring the integrity of meals products, defensive public fitness, and assembly regulatory standards.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135831129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Elena Melnikova, Ekaterina Bogdanova, Daria Paveleva
Whey permeate powder is widely used in technologies of various line groups of food products, but the main limiting factor of its application is its high ash content. This research aimed to establish the efficiency of ash reduction and change of mineral profile at various stages of production for obtaining demineralized whey permeate powder suitable for further usage in technologies of lactose. The experiments were carried out following the referee method and the common methods used in research practice. The objects of research were cheese whey and its concentrate and permeate obtained in the process of ultrafiltration (UF), nanofiltration (NF), electrodialysis (ED), vacuum-evaporating and spray drying. UF made it possible to remove partially Ca2+, total phosphorus, and Mg2+ from cheese whey, NF was effective in removing part of K+, Ca2+, Fe2+, Mg2+, Cu2+, Cl- and total phosphorus from UF-permeate. Using polymer membranes made it possible to obtain the NF-concentrate containing mainly lactose and increase the efficiency of ED due to their high permeability relative to water, as well as their ability to eliminate proteins and partially some ions of mineral salts. The mass fraction of ash in the finished product decreased by 93.0% compared with cheese whey, as well as Na+ and K+ by 89-94%, and Ca2+ and Mg2+ by 60-75%; the total phosphorus – by 78%; chlorides – by 70%. The obtained results allow to justify the technological operation sequence to produce a product suitable for further usage as a raw material for highly purified lactose.
{"title":"The research of whey permeate mineral profile at different stages of membrane filtration","authors":"Elena Melnikova, Ekaterina Bogdanova, Daria Paveleva","doi":"10.5219/1904","DOIUrl":"https://doi.org/10.5219/1904","url":null,"abstract":"Whey permeate powder is widely used in technologies of various line groups of food products, but the main limiting factor of its application is its high ash content. This research aimed to establish the efficiency of ash reduction and change of mineral profile at various stages of production for obtaining demineralized whey permeate powder suitable for further usage in technologies of lactose. The experiments were carried out following the referee method and the common methods used in research practice. The objects of research were cheese whey and its concentrate and permeate obtained in the process of ultrafiltration (UF), nanofiltration (NF), electrodialysis (ED), vacuum-evaporating and spray drying. UF made it possible to remove partially Ca2+, total phosphorus, and Mg2+ from cheese whey, NF was effective in removing part of K+, Ca2+, Fe2+, Mg2+, Cu2+, Cl- and total phosphorus from UF-permeate. Using polymer membranes made it possible to obtain the NF-concentrate containing mainly lactose and increase the efficiency of ED due to their high permeability relative to water, as well as their ability to eliminate proteins and partially some ions of mineral salts. The mass fraction of ash in the finished product decreased by 93.0% compared with cheese whey, as well as Na+ and K+ by 89-94%, and Ca2+ and Mg2+ by 60-75%; the total phosphorus – by 78%; chlorides – by 70%. The obtained results allow to justify the technological operation sequence to produce a product suitable for further usage as a raw material for highly purified lactose.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135830974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Volodymyr Vovkotrub, Olga Iakubchak, Leonid Horalskyi, Nataliia Vovkotrub, Larysa Shevchenko, Nataliia Shynkaruk, Tatyana Rozbytska, Yuliia Slyva, Olga Tupitska, Oksana Shtonda
Microstructural changes in meat that occur during refrigerated storage depend on the hygiene of slaughtering and primary processing of animal carcasses, their cooling conditions, storage period, and microbial contamination and reflect the processes of meat maturation and spoilage. To extend the shelf life of pork in half-carcasses in a chilled state, 20 heads of 6-month-old large white pigs were used, which were delivered to the meat processing enterprise for slaughter. All half carcasses were cooled in a refrigerating chamber using showering, 1 hour later they were divided into 2 groups: control (without treatment) and experimental with the final treatment with a suspension of lactic acid bacteria of the SafePro® B-2 strain (Lactobacillus sakei). It has been found that cooling of pork half-carcasses in a refrigerating chamber with stiving and final processing by a culture suspension of lactic-acid microorganisms of strain SafePro® B-2 (Lactobacillus sakei) on the 4th day of storage had a positive effect on the microscopic structure of the pork neck and was characterized by a uniform color distribution when histologic specimens of muscular tissue are colored with hematoxylin and eosin, and minor cracks in the sarcoplasm, preservation of transverse and longitudinal striation of muscular fibers in comparison with that of the unprocessed pork half-carcasses with cultures of lactic-acid microorganisms. The microscopic structure of the muscular tissue of the pork half-carcass neck after cooling with stiving and final processing by a culture of lactic-acid microorganisms of strain SafePro® B-2 for 7 days of storage had a more distinct histoarchitecture in comparison with that of the unprocessed pork half-carcasses, as well as was characterized by insignificant areas of muscular fibers with transverse cracks, suspended development period of autolysis processes, partial preservation of transverse and longitudinal striation of muscle fibers. This points to a positive effect of lactic acid bacteria of strain SafePro® B-2 (Lactobacillus sakei) on the quality of the pork meat and contributes to the extension of its shelf life under chilled vintage.
{"title":"The microscopic structure of pork neck after cooling with showering stiving and processing by culture Lactobacillus sakei","authors":"Volodymyr Vovkotrub, Olga Iakubchak, Leonid Horalskyi, Nataliia Vovkotrub, Larysa Shevchenko, Nataliia Shynkaruk, Tatyana Rozbytska, Yuliia Slyva, Olga Tupitska, Oksana Shtonda","doi":"10.5219/1905","DOIUrl":"https://doi.org/10.5219/1905","url":null,"abstract":"Microstructural changes in meat that occur during refrigerated storage depend on the hygiene of slaughtering and primary processing of animal carcasses, their cooling conditions, storage period, and microbial contamination and reflect the processes of meat maturation and spoilage. To extend the shelf life of pork in half-carcasses in a chilled state, 20 heads of 6-month-old large white pigs were used, which were delivered to the meat processing enterprise for slaughter. All half carcasses were cooled in a refrigerating chamber using showering, 1 hour later they were divided into 2 groups: control (without treatment) and experimental with the final treatment with a suspension of lactic acid bacteria of the SafePro® B-2 strain (Lactobacillus sakei). It has been found that cooling of pork half-carcasses in a refrigerating chamber with stiving and final processing by a culture suspension of lactic-acid microorganisms of strain SafePro® B-2 (Lactobacillus sakei) on the 4th day of storage had a positive effect on the microscopic structure of the pork neck and was characterized by a uniform color distribution when histologic specimens of muscular tissue are colored with hematoxylin and eosin, and minor cracks in the sarcoplasm, preservation of transverse and longitudinal striation of muscular fibers in comparison with that of the unprocessed pork half-carcasses with cultures of lactic-acid microorganisms. The microscopic structure of the muscular tissue of the pork half-carcass neck after cooling with stiving and final processing by a culture of lactic-acid microorganisms of strain SafePro® B-2 for 7 days of storage had a more distinct histoarchitecture in comparison with that of the unprocessed pork half-carcasses, as well as was characterized by insignificant areas of muscular fibers with transverse cracks, suspended development period of autolysis processes, partial preservation of transverse and longitudinal striation of muscle fibers. This points to a positive effect of lactic acid bacteria of strain SafePro® B-2 (Lactobacillus sakei) on the quality of the pork meat and contributes to the extension of its shelf life under chilled vintage.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135830967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The most widely used probiotics that benefit human and animal health are lactic acid bacteria (LAB) derived from milk and dairy products. Therefore, this study aimed to investigate the probiotic properties of LAB strains isolated from Kazakhstan mare's milk and koumiss (fermented mare’s milk) samples. A total of 24 LAB strains were isolated to test their probiotic properties. Based on analysis of probiotic properties, the strains 3K, 7K, 9K, 10K and 11K were identified by 16S rDNA sequence analysis. According to PCR analysis, three strains (3K, 7K, 9K) were assigned to the species Limosilactobacillus fermentum and the remaining two strains (10K and 11K) were assigned to the species Lacticaseibacillus paracasei. In summary, the high biological potential of the strain Lacticaseibacillus paracasei 10K was identified as having probiotic property, which suggests its possible use as a promising candidate.
{"title":"Comparative characterization of strains of lactic acid bacteria isolated from Kazakhstan mare's milk and koumiss to create probiotic preparation","authors":"Fatima Sagymbek, Tolkyn Abdigaliyeva, Assiya Serikbaeva, Zubaira Kozhahmetova, Zhuldyz Suleimenova","doi":"10.5219/1906","DOIUrl":"https://doi.org/10.5219/1906","url":null,"abstract":"The most widely used probiotics that benefit human and animal health are lactic acid bacteria (LAB) derived from milk and dairy products. Therefore, this study aimed to investigate the probiotic properties of LAB strains isolated from Kazakhstan mare's milk and koumiss (fermented mare’s milk) samples. A total of 24 LAB strains were isolated to test their probiotic properties. Based on analysis of probiotic properties, the strains 3K, 7K, 9K, 10K and 11K were identified by 16S rDNA sequence analysis. According to PCR analysis, three strains (3K, 7K, 9K) were assigned to the species Limosilactobacillus fermentum and the remaining two strains (10K and 11K) were assigned to the species Lacticaseibacillus paracasei. In summary, the high biological potential of the strain Lacticaseibacillus paracasei 10K was identified as having probiotic property, which suggests its possible use as a promising candidate.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135830759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Galchenko, E. Sidorova, A. Barinov, Nikita Titiov, A. Skalny
While eating, people receive energy, as well as the necessary nutrients. However, different food products contain different amounts of macro- and micronutrients, so their consumption can vary significantly depending on eating habits. The diets of 105 people, first-year students of the Peoples` Friendship University of Russia from six different regions of the Earth: CIS countries; Latin America; Central and South Africa; North Africa, the Middle East, and Central Asia; Central and South Asia; Iran and Azerbaijan - were analyzed. Nutrition was evaluated by the frequency method. The median calorie intake among all examined was 2756 kcal per day. At the same time, the proportion of proteins from the total calorie content was 15.3%, from fats – 37.5%, from carbohydrates – 47.1%, from alcohol – 0.5%. It was not possible to detect significant differences in the consumption of macronutrients or their contribution to the energy value of the diet between the regions. The exception was ethanol consumption: students coming from Central and South Africa consumed significantly more alcoholic drinks compared to students from Russia, Ukraine, and Moldova. Due to the extremely high level of dispersion within each of the studied groups, it was not possible to detect significant differences in the consumption of macronutrients, depending on the region of origin of the student. That is, intra-group differences turned out to be significantly more than inter-group differences. At the same time, the share of macronutrients in ensuring the total calorie content of the diet in this study turned out to be close to the data obtained in large cities of other countries and significantly differed from the results of the assessment of diets of rural residents. Probably, the student’s nutrition is formed largely under the influence of the urban environment and individual taste preferences; ethnic and cultural affiliation plays a much smaller role.
{"title":"The contribution of proteins, fats, carbohydrates, and alcohol to the total energy value of the diet: a cross-sectional study","authors":"A. Galchenko, E. Sidorova, A. Barinov, Nikita Titiov, A. Skalny","doi":"10.5219/1435","DOIUrl":"https://doi.org/10.5219/1435","url":null,"abstract":"While eating, people receive energy, as well as the necessary nutrients. However, different food products contain different amounts of macro- and micronutrients, so their consumption can vary significantly depending on eating habits. The diets of 105 people, first-year students of the Peoples` Friendship University of Russia from six different regions of the Earth: CIS countries; Latin America; Central and South Africa; North Africa, the Middle East, and Central Asia; Central and South Asia; Iran and Azerbaijan - were analyzed. Nutrition was evaluated by the frequency method. The median calorie intake among all examined was 2756 kcal per day. At the same time, the proportion of proteins from the total calorie content was 15.3%, from fats – 37.5%, from carbohydrates – 47.1%, from alcohol – 0.5%. It was not possible to detect significant differences in the consumption of macronutrients or their contribution to the energy value of the diet between the regions. The exception was ethanol consumption: students coming from Central and South Africa consumed significantly more alcoholic drinks compared to students from Russia, Ukraine, and Moldova. Due to the extremely high level of dispersion within each of the studied groups, it was not possible to detect significant differences in the consumption of macronutrients, depending on the region of origin of the student. That is, intra-group differences turned out to be significantly more than inter-group differences. At the same time, the share of macronutrients in ensuring the total calorie content of the diet in this study turned out to be close to the data obtained in large cities of other countries and significantly differed from the results of the assessment of diets of rural residents. Probably, the student’s nutrition is formed largely under the influence of the urban environment and individual taste preferences; ethnic and cultural affiliation plays a much smaller role.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"85 1","pages":"33-39"},"PeriodicalIF":0.0,"publicationDate":"2021-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83903672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
O. Alabi, A. Shoyombo, S. Jegede, O. Oluba, O. Akpor
Chicken keeping is a common thing with most household in rural areas of Nigeria. The birds are raised under extensive system of production with little or no feed provided by the farmers for the birds, hence there is the need to compare the rate of egg production of six different breeds of chickens reared under the same conditions in the rural areas. Twelve villages were randomly selected from the long list of villages in Kwara, 20 households per village and 4 villages per senatorial district, with a total coverage of 240 households for the study. The birds that were used for the study were indigenous chicken (Fulani), improved indigenous chickens (Shika Brown, Funaab Alpha and Noiler) and imported tropically adapted birds (Sasso and Kuroiler). Thirty six weeks old pre-vaccinated and brooded chickens of different breeds given to the farmers were managed under the traditional poultry scavenging system in all the three senatorial districts. The nonparametric Kruskal–Wallis test was used for the comparison between districts and breeds. There were no significant differences in egg production per senatorial district, egg production from different breeds and production from different senatorial districts remained averagely low. Low egg production by all the breeds showed that scavenging way of rural chicken production should be improved on for better productivity. This can be achieved through supplemental feed formulated and produced from locally available feed ingredients for the chickens.
{"title":"Rural production of tropically adapted breeds of chickens in rural areas of Kwara state, Nigeria","authors":"O. Alabi, A. Shoyombo, S. Jegede, O. Oluba, O. Akpor","doi":"10.5219/1199","DOIUrl":"https://doi.org/10.5219/1199","url":null,"abstract":"Chicken keeping is a common thing with most household in rural areas of Nigeria. The birds are raised under extensive system of production with little or no feed provided by the farmers for the birds, hence there is the need to compare the rate of egg production of six different breeds of chickens reared under the same conditions in the rural areas. Twelve villages were randomly selected from the long list of villages in Kwara, 20 households per village and 4 villages per senatorial district, with a total coverage of 240 households for the study. The birds that were used for the study were indigenous chicken (Fulani), improved indigenous chickens (Shika Brown, Funaab Alpha and Noiler) and imported tropically adapted birds (Sasso and Kuroiler). Thirty six weeks old pre-vaccinated and brooded chickens of different breeds given to the farmers were managed under the traditional poultry scavenging system in all the three senatorial districts. The nonparametric Kruskal–Wallis test was used for the comparison between districts and breeds. There were no significant differences in egg production per senatorial district, egg production from different breeds and production from different senatorial districts remained averagely low. Low egg production by all the breeds showed that scavenging way of rural chicken production should be improved on for better productivity. This can be achieved through supplemental feed formulated and produced from locally available feed ingredients for the chickens.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"34 1","pages":"1013-1017"},"PeriodicalIF":0.0,"publicationDate":"2019-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83504333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andrej Géci, Ľ. Nagyová, Stanislav Mokrý, J. Rybanská
Consumer behavior is an unexplored area of life for all buyers and sellers alike. Knowledge of consumer behavior brings better market orientation and more consistent establishment of individual products in consumers' shopping baskets. In examining this behavior, the authors of the paper focus on questions such as why, how, where, when, and how much consumers are willing and able to buy at a particular market price. The behavior in question is influenced by several factors (cultural, social, psychological and personality) that influence the final consumer decisions. The main objective of the present document is to evaluate consumer behavior, their purchasing preferences and also to make decisions when buying a particular food product – tea. The primary data were obtained through a questionnaire survey carried out on a sample of 640 respondents. The questionnaire was divided into two basic parts the demographic part and the part dealing with consumer behavior at the selected market commodity. In the questionnaire processing the respondents were filtered based on their answers. The research has shown that more than 78% of respondents consume tea while women consume it more (50%). Flavor (56.3%) proved to be the most important factor in the selection of a particular tea. Almost half of the respondents reported consuming cut tea (46.5%). In the present document, assumptions were formulated which serve for a deeper analysis of the issue. The relevance of the formulated assumptions was verified by the XLSTAT statistical software. Data were evaluated by qualitative statistics – Chi-square test of good compliance, Fisher's exact test, Mann Whitney test and Friedman test.
{"title":"Investigation of consumer behaviour at selected market commodity","authors":"Andrej Géci, Ľ. Nagyová, Stanislav Mokrý, J. Rybanská","doi":"10.5219/1230","DOIUrl":"https://doi.org/10.5219/1230","url":null,"abstract":"Consumer behavior is an unexplored area of life for all buyers and sellers alike. Knowledge of consumer behavior brings better market orientation and more consistent establishment of individual products in consumers' shopping baskets. In examining this behavior, the authors of the paper focus on questions such as why, how, where, when, and how much consumers are willing and able to buy at a particular market price. The behavior in question is influenced by several factors (cultural, social, psychological and personality) that influence the final consumer decisions. The main objective of the present document is to evaluate consumer behavior, their purchasing preferences and also to make decisions when buying a particular food product – tea. The primary data were obtained through a questionnaire survey carried out on a sample of 640 respondents. The questionnaire was divided into two basic parts the demographic part and the part dealing with consumer behavior at the selected market commodity. In the questionnaire processing the respondents were filtered based on their answers. The research has shown that more than 78% of respondents consume tea while women consume it more (50%). Flavor (56.3%) proved to be the most important factor in the selection of a particular tea. Almost half of the respondents reported consuming cut tea (46.5%). In the present document, assumptions were formulated which serve for a deeper analysis of the issue. The relevance of the formulated assumptions was verified by the XLSTAT statistical software. Data were evaluated by qualitative statistics – Chi-square test of good compliance, Fisher's exact test, Mann Whitney test and Friedman test.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"46 1","pages":"925-932"},"PeriodicalIF":0.0,"publicationDate":"2019-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77144843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Z. Kádeková, I. Košičiarová, Ľ. Kubicová, Mária Holotová, Kristína Predanócyová
The impact of food advertising on consumer behavior is a matter of concern to psychologists, marketers, economists and the general public alike. It is well known that the consumer is not rational, and all the time does not carefully evaluate all available alternatives before purchase. There exist many stimuli influencing consumer behavior, which refers to the study of buying tendencies of consumers. There are several stages a consumer goes through before he finally picks up products available in the market. Various factors, be it cultural, social, personal or psychological, influence the buying decision of individuals. Submitted paper deals with the impact of inappropriate advertising on consumer behavior, namely the purchase of food. Related research was conducted at Department of Marketing and Trade, FEM SUA in Nitra, based on a questionnaire survey with a sample of 702 respondents from the Slovak Republic. We have used two research methods: Chi Square contingency test and Kolmogorov – Smirnov test. Obtained results proved that 38% of respondents have a personal experience with inappropriate food advertising and most respondents considered inappropriate food advertising as a deceptive, misleading and manipulative one. It was confirmed that the perception of inappropriate food advertising is not dependent on the age of the respondents and respondents do not avoid buying food previously seen in inappropriate advertising. They take into consideration more important characteristics and features of the food products such as quality, price, taste etc.
{"title":"The impact of inappropriate food advertising on consumer behavior","authors":"Z. Kádeková, I. Košičiarová, Ľ. Kubicová, Mária Holotová, Kristína Predanócyová","doi":"10.5219/1216","DOIUrl":"https://doi.org/10.5219/1216","url":null,"abstract":"The impact of food advertising on consumer behavior is a matter of concern to psychologists, marketers, economists and the general public alike. It is well known that the consumer is not rational, and all the time does not carefully evaluate all available alternatives before purchase. There exist many stimuli influencing consumer behavior, which refers to the study of buying tendencies of consumers. There are several stages a consumer goes through before he finally picks up products available in the market. Various factors, be it cultural, social, personal or psychological, influence the buying decision of individuals. Submitted paper deals with the impact of inappropriate advertising on consumer behavior, namely the purchase of food. Related research was conducted at Department of Marketing and Trade, FEM SUA in Nitra, based on a questionnaire survey with a sample of 702 respondents from the Slovak Republic. We have used two research methods: Chi Square contingency test and Kolmogorov – Smirnov test. Obtained results proved that 38% of respondents have a personal experience with inappropriate food advertising and most respondents considered inappropriate food advertising as a deceptive, misleading and manipulative one. It was confirmed that the perception of inappropriate food advertising is not dependent on the age of the respondents and respondents do not avoid buying food previously seen in inappropriate advertising. They take into consideration more important characteristics and features of the food products such as quality, price, taste etc.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"58 5 1","pages":"1034-1039"},"PeriodicalIF":0.0,"publicationDate":"2019-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88274024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Malczyk, J. Wyka, M. Habánová, Marta Misiarz, M. Zołoteńka-Synowiec, Maria Holovicova, M. Jarossová
The way of defining the concept of health varies depending on the age, sex, social position of a person conditioned by place of residence, economic and family situation. The aim of the study was to assess subjective and objective health status of women over 65 living in a small and big town. In the subjective assessment of the nutritional status were the MNA questionnaire used, in the objective assessment was BMI used. Body composition analysis was carried out using the bioimpedance method. Lab tests were made using standard methods. The quantitative assessment of the diet was made using the 24-hour intake method, the results calculated in software Dieta 5. Significantly more often women from Nysa than from Wroclaw assessed their health status in comparison with their peers as just as good or better (p <0.05). The BMI value among Nysa women shows the overweight, and among women from Wroclaw, obesity. The average content of adipose tissue among all examined women indicated significant fatness of the examined group (36 – 37%). The average energy supply in the food rations of women from Nysa and Wroclaw differed statistically significantly and did not meet the accepted norms. In conclusion, we can say that older women from a small city assessed their health as better or as good compared to older women in a large city. The implementation of dietary norms and recommendations in the food rations of the subjects was insufficient. However, women from a small town provided statistically significantly more nutrients in their diets.
{"title":"Health status of woman from a small and big town in Poland: the subjective and objective assessment","authors":"E. Malczyk, J. Wyka, M. Habánová, Marta Misiarz, M. Zołoteńka-Synowiec, Maria Holovicova, M. Jarossová","doi":"10.5219/1204","DOIUrl":"https://doi.org/10.5219/1204","url":null,"abstract":"The way of defining the concept of health varies depending on the age, sex, social position of a person conditioned by place of residence, economic and family situation. The aim of the study was to assess subjective and objective health status of women over 65 living in a small and big town. In the subjective assessment of the nutritional status were the MNA questionnaire used, in the objective assessment was BMI used. Body composition analysis was carried out using the bioimpedance method. Lab tests were made using standard methods. The quantitative assessment of the diet was made using the 24-hour intake method, the results calculated in software Dieta 5. Significantly more often women from Nysa than from Wroclaw assessed their health status in comparison with their peers as just as good or better (p <0.05). The BMI value among Nysa women shows the overweight, and among women from Wroclaw, obesity. The average content of adipose tissue among all examined women indicated significant fatness of the examined group (36 – 37%). The average energy supply in the food rations of women from Nysa and Wroclaw differed statistically significantly and did not meet the accepted norms. In conclusion, we can say that older women from a small city assessed their health as better or as good compared to older women in a large city. The implementation of dietary norms and recommendations in the food rations of the subjects was insufficient. However, women from a small town provided statistically significantly more nutrients in their diets.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"95 1","pages":"950-955"},"PeriodicalIF":0.0,"publicationDate":"2019-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74675103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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