G. Upadysheva, S. Motyleva, I. Kulikov, S. Medvedev, M. Mertvishcheva
The results of the field and biochemical researches of sweet cherry Prunus avium L. scion Chermashnaya fruit grown on 8 clonal stocks (Kolt, Moskoviya, Izmaylovskiy, Stepnoy rodnik, AVCH-2, VSL-2, VTS-13, V-5-88) are presented. Trees productivity, the fruit average weight and the stone- fruit weight relation were studied, fruit degustation evaluation was fulfilled and the main biochemical parameters such as soluble solids, sugars sum, ascorbic acid concentration and antioxidant activity were determined. The influence of the stock on the fruit biochemical composition, the trees productivity and the fruit weight was determined. The sweet cherries productivity was 12,5 kg/tree at average, and depending on the stock it varied from 8,3 kg/tree (V-5-88) to 18,6 kg/tree (Izmaylovskiy). The biggest fruit were found on the trees with stocks VSL-2, Izmaylovskiy and AVCH-2. At average the proportion of the stone in the fruit weight was 5.3% with the variation depending on the stock from 5.2% (Kolt) to 5.5% (V-5-88, Stepnoy rodnik). According to the degustation results the fruit of scion Chermashnaya were characterized by the sweet harmonized taste and smell (4.5 points), there were not found either taste deterioration or bitterness on any stock. The best results according to the degustation evaluation by the parameters complex were found at scion Chermashnaya combinations on stocks Izmaylovskiy, VSL-2 and Kolt. The soluble solids content also depended on the stock and varied from 13.9 (Chermashnaya on AVCH-2) to 17.2% (Chermashnaya on Izmaylovskiy) at average value 16.0%. The sugars content in the sweet cherry fruit was within the range from 9.0 to 12.4%. The sugars higher accumulation belonged to the combinations of Chermashmaya on Stepnoy rodnik (11.1%) and Chermashmaya on Izmaylovskiy (12.4%). The ascorbic acid content in the sweet cherry fruit did not exceed 8 mg.100 g-1. Depending on the stock this parameter varied from 5.9 to 9.3 mg.100 g-1. The highest vitamin C content was found in the fruit at the grafting on the stock Stepnoy rodnik, the lowest one - on the stock Moskoviya. The sweet cherry fruit antioxidant activity according to DPPH method was not high and was in the range from 11.8 to 13.8%.
{"title":"Biochemical composition of sweet cherry (Prynus avium L.) fruit depending on the scion-stock combinations","authors":"G. Upadysheva, S. Motyleva, I. Kulikov, S. Medvedev, M. Mertvishcheva","doi":"10.5219/923","DOIUrl":"https://doi.org/10.5219/923","url":null,"abstract":"The results of the field and biochemical researches of sweet cherry Prunus avium L. scion Chermashnaya fruit grown on 8 clonal stocks (Kolt, Moskoviya, Izmaylovskiy, Stepnoy rodnik, AVCH-2, VSL-2, VTS-13, V-5-88) are presented. Trees productivity, the fruit average weight and the stone- fruit weight relation were studied, fruit degustation evaluation was fulfilled and the main biochemical parameters such as soluble solids, sugars sum, ascorbic acid concentration and antioxidant activity were determined. The influence of the stock on the fruit biochemical composition, the trees productivity and the fruit weight was determined. The sweet cherries productivity was 12,5 kg/tree at average, and depending on the stock it varied from 8,3 kg/tree (V-5-88) to 18,6 kg/tree (Izmaylovskiy). The biggest fruit were found on the trees with stocks VSL-2, Izmaylovskiy and AVCH-2. At average the proportion of the stone in the fruit weight was 5.3% with the variation depending on the stock from 5.2% (Kolt) to 5.5% (V-5-88, Stepnoy rodnik). According to the degustation results the fruit of scion Chermashnaya were characterized by the sweet harmonized taste and smell (4.5 points), there were not found either taste deterioration or bitterness on any stock. The best results according to the degustation evaluation by the parameters complex were found at scion Chermashnaya combinations on stocks Izmaylovskiy, VSL-2 and Kolt. The soluble solids content also depended on the stock and varied from 13.9 (Chermashnaya on AVCH-2) to 17.2% (Chermashnaya on Izmaylovskiy) at average value 16.0%. The sugars content in the sweet cherry fruit was within the range from 9.0 to 12.4%. The sugars higher accumulation belonged to the combinations of Chermashmaya on Stepnoy rodnik (11.1%) and Chermashmaya on Izmaylovskiy (12.4%). The ascorbic acid content in the sweet cherry fruit did not exceed 8 mg.100 g-1. Depending on the stock this parameter varied from 5.9 to 9.3 mg.100 g-1. The highest vitamin C content was found in the fruit at the grafting on the stock Stepnoy rodnik, the lowest one - on the stock Moskoviya. The sweet cherry fruit antioxidant activity according to DPPH method was not high and was in the range from 11.8 to 13.8%.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81955194","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}
P. Kováčik, P. Salamún, S. Smoleń, P. Škarpa, V. Šimanský, Ľ. Moravčík
The impact of different types of vermicomposts as well as different species and genera of earthworms on the quantity of the cultivated crops yield has been studied for decades. There is scarce information about the effects of these factors on the quality of plant production. One of the qualitative parameters of vegetables, to which a special attention is paid, is the content of antioxidants (vitamin C, total polyphenols and other substances). The pot experiment carried out in the vegetation cage studied: A) the influence of soil itself, soil mixed with vermicompost in a ratio of 4:1; B) the influence of earthworms number (genus Eisenia foetida, 10 and 20 individuals per pot) supplied to soil mixed with vermicompost in a ratio of 4:1 on the weight of radish roots and leaves, to the total chlorophylls content in leaves, to the selected qualitative parameters of the roots and leaves (vitamin C, total polyphenols content, total antioxidant activity). The results showed that the supplementation of vermicompost into soil increased the content of the total chlorophylls in leaves. The carrot roots and leaves yield has also been risen. In the roots the content of vitamin C and content of total polyphenols (TPC) was decreased and the total antioxidant activity (TAA) dropped, too. The increased content of vitamin C and TPC was detected in leaves. The inoculation of soil containing vermicompost by earthworms increased the root yield and TAA in roots. It increased the content of vitamin C and TPC in leaves. From the viewpoint of antioxidant content (vitamin C and total polyphenols) the leaves are more attractive than a root.
{"title":"Determination of the carrot (Daucus carota L.) yields parameters by vermicompost and earthworms (Eisenia foetida)","authors":"P. Kováčik, P. Salamún, S. Smoleń, P. Škarpa, V. Šimanský, Ľ. Moravčík","doi":"10.5219/946","DOIUrl":"https://doi.org/10.5219/946","url":null,"abstract":"The impact of different types of vermicomposts as well as different species and genera of earthworms on the quantity of the cultivated crops yield has been studied for decades. There is scarce information about the effects of these factors on the quality of plant production. One of the qualitative parameters of vegetables, to which a special attention is paid, is the content of antioxidants (vitamin C, total polyphenols and other substances). The pot experiment carried out in the vegetation cage studied: A) the influence of soil itself, soil mixed with vermicompost in a ratio of 4:1; B) the influence of earthworms number (genus Eisenia foetida, 10 and 20 individuals per pot) supplied to soil mixed with vermicompost in a ratio of 4:1 on the weight of radish roots and leaves, to the total chlorophylls content in leaves, to the selected qualitative parameters of the roots and leaves (vitamin C, total polyphenols content, total antioxidant activity). The results showed that the supplementation of vermicompost into soil increased the content of the total chlorophylls in leaves. The carrot roots and leaves yield has also been risen. In the roots the content of vitamin C and content of total polyphenols (TPC) was decreased and the total antioxidant activity (TAA) dropped, too. The increased content of vitamin C and TPC was detected in leaves. The inoculation of soil containing vermicompost by earthworms increased the root yield and TAA in roots. It increased the content of vitamin C and TPC in leaves. From the viewpoint of antioxidant content (vitamin C and total polyphenols) the leaves are more attractive than a root.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"71 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83932472","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}
Ž. Balážová, Z. Gálová, M. Vivodík, M. Chňapek, R. Gregáňová
Buckwheat ( Fagopyrium esculentum ) is a pseudo-cereal which has spread troughout the world and nowadays it represents cultural, economic and nutritionally important pseudocereal . It´s enviromentally friendly, characterized by high fiber, routine, protein and B vitamins, and is general-purpose. The goal of the present study was to analyze 17 genotypes of buckwheat by using 7 SCoT markers. In total, 52 fragments were detected, of which 38 were polymorphic. The average number of polymorphic fragments was 5.43. The most polymorphic fragments were detected in SCoT 26 and SCoT 29 markers, and the average percentage of polymorphism was 73.36 %. SCoT 29 reached the highest percentage of polymorphism (87.5 %) and SCoT 36 was lowest (60 %). The DI values ranged from 0.625 (SCoT 36) to 0.887 (SCoT 26) and the average DI value was 0.749. The average PIC value was 0.729 with PIC values ranging from 0.386 (SCoT 36) to 0.831 (SCoT 26). To determine the genetic diversity of 17 genotypes of the buckwheat, a dendrogram was created using the hierarchical cluster analysis. The genotypes were divided into two major clusters (I and II). Cluster I was divided into three other subgroups. Sixteen genotypes were included in cluster I and the genotype of Madawaska (USA) was genetically the farthest in cluster II. Genetically the closest were the varieties of Ballada (Russia) and Bamby (Austria). Used SCoT markers were sufficiently polymorphic, were able identify and differentiate chosen set of buckwheat genotypes.
{"title":"Molecular analysis of buckwheat using gene specific markers","authors":"Ž. Balážová, Z. Gálová, M. Vivodík, M. Chňapek, R. Gregáňová","doi":"10.5219/954","DOIUrl":"https://doi.org/10.5219/954","url":null,"abstract":"Buckwheat ( Fagopyrium esculentum ) is a pseudo-cereal which has spread troughout the world and nowadays it represents cultural, economic and nutritionally important pseudocereal . It´s enviromentally friendly, characterized by high fiber, routine, protein and B vitamins, and is general-purpose. The goal of the present study was to analyze 17 genotypes of buckwheat by using 7 SCoT markers. In total, 52 fragments were detected, of which 38 were polymorphic. The average number of polymorphic fragments was 5.43. The most polymorphic fragments were detected in SCoT 26 and SCoT 29 markers, and the average percentage of polymorphism was 73.36 %. SCoT 29 reached the highest percentage of polymorphism (87.5 %) and SCoT 36 was lowest (60 %). The DI values ranged from 0.625 (SCoT 36) to 0.887 (SCoT 26) and the average DI value was 0.749. The average PIC value was 0.729 with PIC values ranging from 0.386 (SCoT 36) to 0.831 (SCoT 26). To determine the genetic diversity of 17 genotypes of the buckwheat, a dendrogram was created using the hierarchical cluster analysis. The genotypes were divided into two major clusters (I and II). Cluster I was divided into three other subgroups. Sixteen genotypes were included in cluster I and the genotype of Madawaska (USA) was genetically the farthest in cluster II. Genetically the closest were the varieties of Ballada (Russia) and Bamby (Austria). Used SCoT markers were sufficiently polymorphic, were able identify and differentiate chosen set of buckwheat genotypes.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88400393","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}
M. Angelovičová, O. Bučko, M. Angelovič, P. Zajác, Jozef Čapla, Marek Šnirc, J. Tkáčová, M. Klimentová
The purpose of this study was an experimental investigation of the influence of active substances obtained mainly from citrus fruits in the experimental feed mixtures, and diclazuril and salinomycin sodium in the control feed mixtures of broiler chickens on productive efficiency and protein quality of the breast and thigh muscles. In vivo experiment was carried out with hybrid chickens Cobb 500. Basic feed mixtures were equal a soy cereal type for experimental and control group. Indicators of productive efficiency were measured and calculated, and protein, lysine and methionine contents in the breast and thigh muscles were measured by the method of FT IR, Nicolet 6700. Active substances obtained mainly from citrus fruits confirmed a statistically significant (p ˂0.05) positive effect on the body weight gain; tended to slightly increase feed intake per bird, protein, energy, lysine and methionine intake per bird; slightly decrease feed intake per 1 kg of body weight gain, protein, energy, lysine and methionine intake per 1 kg of body weight gain; slightly increase protein efficiency ratio and energy efficiency ratio. Additive substances used in the feed mixtures did not have a statistically significant effect on protein, lysine and methionine contents in the breast and thigh muscles but displayed a strong positive, statistically significant relation between lysine and methionine in them.
{"title":"Protein quality chicken meat after feeding with active substances of citrus fruits and diclazuril and salinomycin sodium","authors":"M. Angelovičová, O. Bučko, M. Angelovič, P. Zajác, Jozef Čapla, Marek Šnirc, J. Tkáčová, M. Klimentová","doi":"10.5219/915","DOIUrl":"https://doi.org/10.5219/915","url":null,"abstract":"The purpose of this study was an experimental investigation of the influence of active substances obtained mainly from citrus fruits in the experimental feed mixtures, and diclazuril and salinomycin sodium in the control feed mixtures of broiler chickens on productive efficiency and protein quality of the breast and thigh muscles. In vivo experiment was carried out with hybrid chickens Cobb 500. Basic feed mixtures were equal a soy cereal type for experimental and control group. Indicators of productive efficiency were measured and calculated, and protein, lysine and methionine contents in the breast and thigh muscles were measured by the method of FT IR, Nicolet 6700. Active substances obtained mainly from citrus fruits confirmed a statistically significant (p ˂0.05) positive effect on the body weight gain; tended to slightly increase feed intake per bird, protein, energy, lysine and methionine intake per bird; slightly decrease feed intake per 1 kg of body weight gain, protein, energy, lysine and methionine intake per 1 kg of body weight gain; slightly increase protein efficiency ratio and energy efficiency ratio. Additive substances used in the feed mixtures did not have a statistically significant effect on protein, lysine and methionine contents in the breast and thigh muscles but displayed a strong positive, statistically significant relation between lysine and methionine in them.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"2014 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86575649","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}
Calculation of product costs is the source of information on the costs of selected produced products with great explanatory power. In current practice, the overhead costs on farms are monitored and calculated by species. They are allocated using an allocation base (average state of the animals, harvested area in hectares) or are converted using direct costs of the activity as an allocation base. With the current high level of overheads, this method cannot be considered effective. Only type classifications are monitored and are therefore anonymous in relation to activities. We consider high overhead costs as a good reason for implementing and using the methods of Activity Based Costing. In this paper we present a proposed model of Activity Based Costing for its use in agriculture, created in MS Excel. We create the model as a basic version, which can be more closely defined depending on the particular conditions of the business implementing the model. We complete the general model for better illustration with figures on costs. We present a comparison of model results with the traditional approach of calculating costs in agriculture. One of the biggest benefits of the ABC system is the binding of costs from accounts, activities performed and the cost of products in one system. We present a statistical comparison of model results with the traditional approach of calculating costs in agriculture.
{"title":"Software support for cost calculation – application to the agricultural sector","authors":"Lenka Hudáková Stašová","doi":"10.5219/865","DOIUrl":"https://doi.org/10.5219/865","url":null,"abstract":"Calculation of product costs is the source of information on the costs of selected produced products with great explanatory power. In current practice, the overhead costs on farms are monitored and calculated by species. They are allocated using an allocation base (average state of the animals, harvested area in hectares) or are converted using direct costs of the activity as an allocation base. With the current high level of overheads, this method cannot be considered effective. Only type classifications are monitored and are therefore anonymous in relation to activities. We consider high overhead costs as a good reason for implementing and using the methods of Activity Based Costing. In this paper we present a proposed model of Activity Based Costing for its use in agriculture, created in MS Excel. We create the model as a basic version, which can be more closely defined depending on the particular conditions of the business implementing the model. We complete the general model for better illustration with figures on costs. We present a comparison of model results with the traditional approach of calculating costs in agriculture. One of the biggest benefits of the ABC system is the binding of costs from accounts, activities performed and the cost of products in one system. We present a statistical comparison of model results with the traditional approach of calculating costs in agriculture.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"81 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72569870","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}
M. Zacharová, I. Burešová, R. Gál, Dominika Walachová
Fine pastry is a favorite snack but contains big amount fats and sugars. Sugar consumption is a major factor in the development of diabetes and obesity. Because of the growing interest in low-calorie alternatives to sucrose, producers react with different new products which can replace sugar and do not compromise the consumer acceptability of food products. This study deals with replacement of sugar with chicory oligofructose syrup, which provides same sweetness as sugar but contain over 70 % of fiber. Chicory syrup is composed of oligo-fructose and inulin. Inulin-type fructans are beneficial for immune and cardiovascular systems and its prebiotic function can protect colon health. In this study, the influence of sucrose (7 g.100g-1) replacement with chicory oligofructose syrup (0; 3.5; 7 g.100g-1) on the texture, specific loaf volume and sensory acceptability of biologically leavened muffins was tested. The substitution of sugar by the chicory syrup decreased specific loaf volume from 2.15 to 2.01 mL.g-1 while hardness, springiness and chewiness increased. There was no detrimental impact of syrup addition to cohesiveness of fine pastry muffin. It was observed that due to the syrup addition, pastry hardens faster, as showed results of hardnesss measured after 24 h. Bread crumb and crust sensory characteristics were not affected by the syrup addition. Weak impact of sugar replacement on sensory evaluation may be related to a reduced amount of the panelists involved in this study. More extensive study will, however, be performed to describe the impact of sugar replacement of fine biologically leavened muffins in more details. The results of this preliminary study shows, that the substitution of sugar by chicory syrup change textural properties and loaf volume. Despite all, based on sensory analysis the chicory syrup up to amount 7 g.100g-1 seems to be adequate for its use as a sugar replacer in fine pastry as biologically leavened muffins.
{"title":"Chicory syrup as a substitution of sugar in fine pastry","authors":"M. Zacharová, I. Burešová, R. Gál, Dominika Walachová","doi":"10.5219/890","DOIUrl":"https://doi.org/10.5219/890","url":null,"abstract":"Fine pastry is a favorite snack but contains big amount fats and sugars. Sugar consumption is a major factor in the development of diabetes and obesity. Because of the growing interest in low-calorie alternatives to sucrose, producers react with different new products which can replace sugar and do not compromise the consumer acceptability of food products. This study deals with replacement of sugar with chicory oligofructose syrup, which provides same sweetness as sugar but contain over 70 % of fiber. Chicory syrup is composed of oligo-fructose and inulin. Inulin-type fructans are beneficial for immune and cardiovascular systems and its prebiotic function can protect colon health. In this study, the influence of sucrose (7 g.100g-1) replacement with chicory oligofructose syrup (0; 3.5; 7 g.100g-1) on the texture, specific loaf volume and sensory acceptability of biologically leavened muffins was tested. The substitution of sugar by the chicory syrup decreased specific loaf volume from 2.15 to 2.01 mL.g-1 while hardness, springiness and chewiness increased. There was no detrimental impact of syrup addition to cohesiveness of fine pastry muffin. It was observed that due to the syrup addition, pastry hardens faster, as showed results of hardnesss measured after 24 h. Bread crumb and crust sensory characteristics were not affected by the syrup addition. Weak impact of sugar replacement on sensory evaluation may be related to a reduced amount of the panelists involved in this study. More extensive study will, however, be performed to describe the impact of sugar replacement of fine biologically leavened muffins in more details. The results of this preliminary study shows, that the substitution of sugar by chicory syrup change textural properties and loaf volume. Despite all, based on sensory analysis the chicory syrup up to amount 7 g.100g-1 seems to be adequate for its use as a sugar replacer in fine pastry as biologically leavened muffins.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82091233","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 content of selected essential elements and toxic metals in feed and sheep's milk from areas with different parts of Slovak Republic was analyzed. Region of Novoť (undisturbed environment; North Slovakia) and region of Klatova Nova Ves (widely disturbed environment; Western Slovakia) were under investigation. Eleven metals have been analyzed (essential elements - calcium, zinc, selenium, iron, magnesium, copper; toxic elements - arsenic, mercury, lead, cadmium, nickel). Samples of feeds and milk were collected five-times during the year (spring and autumn season). Analyses of samples were performed by certified testing laboratory Eurofins Bel/Novamann (Nove Zamky, Slovak Republic). Analyses were performed by routine methods, according to the valid methodologies. The results showed significantly higher content of selected essential elements in feed in spring season from area with widely disturbed environment (Klatova Nova Ves). Significantly higher content of essential elements in milk was on farm of Novoť (undisturbed environment). Occurrence of toxic metals in feed from area with widely disturbed environment in spring season did not affect their content in milk. It can be concluded, that the use of milk of sheep from these areas for direct use or for dairy products processing is appropriate, safe and poses no health risk for the consumers.
分析了斯洛伐克共和国不同地区的饲料和羊奶中选定的必需元素和有毒金属的含量。诺沃特地区(未受干扰的环境;北斯洛伐克)和Klatova Nova Ves地区(广泛受干扰的环境;西斯洛伐克)正在接受调查。十一种金属已被分析(必需元素——钙、锌、硒、铁、镁、铜;有毒元素——砷、汞、铅、镉、镍)。在一年中(春季和秋季)采集了5次饲料和牛奶样品。样品分析由认证检测实验室Eurofins Bel/Novamann (Nove Zamky，斯洛伐克共和国)进行。根据有效的方法，采用常规方法进行分析。结果表明，环境扰动较大地区(克拉托娃)春季饲料中部分必需元素含量显著高于其他地区。在未受干扰的环境中，牛奶中必需元素的含量显著增加。春季环境扰动较大地区饲料中有毒金属的出现对牛奶中有毒金属的含量没有影响。可以得出结论，使用这些地区的羊奶直接使用或用于乳制品加工是适当的、安全的，对消费者没有健康风险。
{"title":"Occurrence of selected metals in feed and sheep´s milk from areas with different environmental burden","authors":"Martina Tunegová, R. Toman, V. Tančin, M. Janíček","doi":"10.5219/920","DOIUrl":"https://doi.org/10.5219/920","url":null,"abstract":"The content of selected essential elements and toxic metals in feed and sheep's milk from areas with different parts of Slovak Republic was analyzed. Region of Novoť (undisturbed environment; North Slovakia) and region of Klatova Nova Ves (widely disturbed environment; Western Slovakia) were under investigation. Eleven metals have been analyzed (essential elements - calcium, zinc, selenium, iron, magnesium, copper; toxic elements - arsenic, mercury, lead, cadmium, nickel). Samples of feeds and milk were collected five-times during the year (spring and autumn season). Analyses of samples were performed by certified testing laboratory Eurofins Bel/Novamann (Nove Zamky, Slovak Republic). Analyses were performed by routine methods, according to the valid methodologies. The results showed significantly higher content of selected essential elements in feed in spring season from area with widely disturbed environment (Klatova Nova Ves). Significantly higher content of essential elements in milk was on farm of Novoť (undisturbed environment). Occurrence of toxic metals in feed from area with widely disturbed environment in spring season did not affect their content in milk. It can be concluded, that the use of milk of sheep from these areas for direct use or for dairy products processing is appropriate, safe and poses no health risk for the consumers.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76286826","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}
Current system of direct payments in Slovakia can be described as per hectare payment. It is based on the logical assumption that the more land farmers cultivates, the more support they need. However, it seems like this principle works differently among EU member states. Historically, Slovakia is a country with the largest farms in EU 28. This extreme big physical farm size is here connected with the lowest output among EU 28 and simultaneously Slovak farms display also lowest efficiency. Paper examine generally accepted assumption that the more hectares farms utilize, the more subsidies they should receive, to help achieve more output. Research is based on the mutual pair combined correlation analysis, which examined relationship between utilized agricultural area, total output and total subsidies. Surprisingly just the relationship between total subsidies and total output was proved to be positive and in a moderate manner. Relation of total subsidies and utilised agricultural area, respectively total output and utilised agricultural area show the inverse relationship. In spite of the development in most European countries, Slovak outcomes indicates that the more subsidies farmers receive, the less output they achieve. This paradox can be caused by the actual Common Agricultural Policy system of subsidies remuneration which is not necessary suitable for whole EU 28 on the same level.
{"title":"Is current system of direct payments suitable for farmers in Slovakia?","authors":"J. Kozáková, M. Urbánová","doi":"10.5219/941","DOIUrl":"https://doi.org/10.5219/941","url":null,"abstract":"Current system of direct payments in Slovakia can be described as per hectare payment. It is based on the logical assumption that the more land farmers cultivates, the more support they need. However, it seems like this principle works differently among EU member states. Historically, Slovakia is a country with the largest farms in EU 28. This extreme big physical farm size is here connected with the lowest output among EU 28 and simultaneously Slovak farms display also lowest efficiency. Paper examine generally accepted assumption that the more hectares farms utilize, the more subsidies they should receive, to help achieve more output. Research is based on the mutual pair combined correlation analysis, which examined relationship between utilized agricultural area, total output and total subsidies. Surprisingly just the relationship between total subsidies and total output was proved to be positive and in a moderate manner. Relation of total subsidies and utilised agricultural area, respectively total output and utilised agricultural area show the inverse relationship. In spite of the development in most European countries, Slovak outcomes indicates that the more subsidies farmers receive, the less output they achieve. This paradox can be caused by the actual Common Agricultural Policy system of subsidies remuneration which is not necessary suitable for whole EU 28 on the same level.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89695484","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}
Marianna Lenková, J. Bystrická, P. Chlebo, Ján Kovarovič
Genus Allium belongs to the family Alliaceae , which contains more than 600 species. Garlic ( Allium sativum L.) is the most popular food ingredient widely used all over the world. During the last few decades, garlic has received tremendous attention for their wide range of therapeutic properties and great health benefits. Garlic has possessed antibacterial, antifungal, antiparasitic, antiviral, antioxidant, anticholesteremic, anti-cancerous, and vasodilator characteristics. In this work the total polyphenols content, total sulfur content and antioxidant activity was compared and evaluated in four studied varieties of garlic (Mojmir, Lukan, Zahorský and Makoi). The analyzed samples of garlic were collected at the stage of full maturity in the area Bardejov. The total polyphenols content was measured using the spectrophotometric method of Folin-Ciocalteu agents. The total polyphenols content in studied varieties of garlic were determined in the range 612.23 mg.kg -1 (Mojmir) to 566.01 mg.kg -1 (Lukan). The total polyphenols content in garlic can be arranged as follows: Mojmir >Makoi >Zahorský >Lukan. The determination of the total sulfur content is based on dry combustion in the presence of oxygen and allows for the quantitative conversion of sulfur to SO 2 . Statistically significant highest level of total sulfur content was recorded in 0.638% (Mojmir) and the lowest level was in 0.421% (Makoi). According to determined values of total sulfur content the studied varieties of garlic can be arranged in the following order: Mojmir >Lukan >Zahorský >Makoi. Antioxidant activity was determined by the spectrophotometric method using a compound DPPH (2.2-diphenyl-1-picryhydrazyl). The highest value of antioxidant activity was measured in Mojmir (15.24%). The lowest level was observed in Makoi (11.73%). The antioxidant activity in garlic declined in the following order: Mojmir >Lukan >Zahorský >Makoi. In all studied samples of garlic was confirmed by the strong dependence of the total polyphenols content, total sulfur content and antioxidant activity.
{"title":"Garlic (Allium sativum L.) – the content of bioactive compounds","authors":"Marianna Lenková, J. Bystrická, P. Chlebo, Ján Kovarovič","doi":"10.5219/830","DOIUrl":"https://doi.org/10.5219/830","url":null,"abstract":"Genus Allium belongs to the family Alliaceae , which contains more than 600 species. Garlic ( Allium sativum L.) is the most popular food ingredient widely used all over the world. During the last few decades, garlic has received tremendous attention for their wide range of therapeutic properties and great health benefits. Garlic has possessed antibacterial, antifungal, antiparasitic, antiviral, antioxidant, anticholesteremic, anti-cancerous, and vasodilator characteristics. In this work the total polyphenols content, total sulfur content and antioxidant activity was compared and evaluated in four studied varieties of garlic (Mojmir, Lukan, Zahorský and Makoi). The analyzed samples of garlic were collected at the stage of full maturity in the area Bardejov. The total polyphenols content was measured using the spectrophotometric method of Folin-Ciocalteu agents. The total polyphenols content in studied varieties of garlic were determined in the range 612.23 mg.kg -1 (Mojmir) to 566.01 mg.kg -1 (Lukan). The total polyphenols content in garlic can be arranged as follows: Mojmir >Makoi >Zahorský >Lukan. The determination of the total sulfur content is based on dry combustion in the presence of oxygen and allows for the quantitative conversion of sulfur to SO 2 . Statistically significant highest level of total sulfur content was recorded in 0.638% (Mojmir) and the lowest level was in 0.421% (Makoi). According to determined values of total sulfur content the studied varieties of garlic can be arranged in the following order: Mojmir >Lukan >Zahorský >Makoi. Antioxidant activity was determined by the spectrophotometric method using a compound DPPH (2.2-diphenyl-1-picryhydrazyl). The highest value of antioxidant activity was measured in Mojmir (15.24%). The lowest level was observed in Makoi (11.73%). The antioxidant activity in garlic declined in the following order: Mojmir >Lukan >Zahorský >Makoi. In all studied samples of garlic was confirmed by the strong dependence of the total polyphenols content, total sulfur content and antioxidant activity.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"137 1","pages":"405-412"},"PeriodicalIF":0.0,"publicationDate":"2018-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74008397","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}
An analysis was made of the model approximations of three-phase medium and its behavior under deformation impacts in the rollers bulk feed, the lack of reliability of their operation was noticed and regularities and reasonable geometric parameters was determined. The influence of engineering rheology on the medium was considered and on its basis was derived an analytical mechanical model for determining the optimum value of shift deformation in order to ensure reliable operation of the rollers injection mechanism. A new design and method of determining the geometrical parameters of the pumping unit rollers were proposed and the yeast dough state was examined after cyclic action of the rollers.
{"title":"Global rheological approach to the quality of the rollers pumping of dough","authors":"I. Stadnyk, L. Novak, L. Matenchuk","doi":"10.5219/867","DOIUrl":"https://doi.org/10.5219/867","url":null,"abstract":"An analysis was made of the model approximations of three-phase medium and its behavior under deformation impacts in the rollers bulk feed, the lack of reliability of their operation was noticed and regularities and reasonable geometric parameters was determined. The influence of engineering rheology on the medium was considered and on its basis was derived an analytical mechanical model for determining the optimum value of shift deformation in order to ensure reliable operation of the rollers injection mechanism. A new design and method of determining the geometrical parameters of the pumping unit rollers were proposed and the yeast dough state was examined after cyclic action of the rollers.","PeriodicalId":20379,"journal":{"name":"Potravinarstvo","volume":"38 1","pages":"397-404"},"PeriodicalIF":0.0,"publicationDate":"2018-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78524396","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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