This paper aimed to analyze the variability of spring phenophases in the apple species, the ‘GoldRush’ cultivar to analyze the risk of spring frost for apple production in Stănești area of Argeș County (45°13′44″N, 24°50′9″E, altitude 540m), Romania, and the role of phenological acclimatization. The timing of phenological stages is made according to the definitions of the Biologische Bundesanstalt, Bundessortenamt, and CHemical industry (BBCH). Based on Julian day number, on average for 4 years, the phenophases occurred from the 85.54 day of year, marked by “beginning of leaf bud swelling/inflorescence bud swelling” (BBCH 01/51), until 1the 23.36 day of year for phenophase ''end of flowering'' (BBCH 69). Analyzing the data obtained, they allowed us to assess the temporal trends of development of budding and flowering phenophases and the trends of risks in the light of global warming. The research will be continued in order to analyze a longer period of time and to analyze different cultivars, in order to achieve sustainable and competitive fruit crops.
{"title":"CHANGES IN SPRING PHENOLOGY IN APPLE TREE AND ITS RESISTANCE TO LATE FROST UNDER THE CLIMATE CONDITIONS OF STANESTI AREA, ARGES COUNTY, ROMANIA","authors":"Nicolae Gheorghiu, S. Cosmulescu","doi":"10.17930/agl202226","DOIUrl":"https://doi.org/10.17930/agl202226","url":null,"abstract":"This paper aimed to analyze the variability of spring phenophases in the apple species, the ‘GoldRush’ cultivar to analyze the risk of spring frost for apple production in Stănești area of Argeș County (45°13′44″N, 24°50′9″E, altitude 540m), Romania, and the role of phenological acclimatization. The timing of phenological stages is made according to the definitions of the Biologische Bundesanstalt, Bundessortenamt, and CHemical industry (BBCH). Based on Julian day number, on average for 4 years, the phenophases occurred from the 85.54 day of year, marked by “beginning of leaf bud swelling/inflorescence bud swelling” (BBCH 01/51), until 1the 23.36 day of year for phenophase ''end of flowering'' (BBCH 69). Analyzing the data obtained, they allowed us to assess the temporal trends of development of budding and flowering phenophases and the trends of risks in the light of global warming. The research will be continued in order to analyze a longer period of time and to analyze different cultivars, in order to achieve sustainable and competitive fruit crops.","PeriodicalId":44979,"journal":{"name":"AgroLife Scientific Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47695612","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}
N. Solakov, Kamelia K. Loginovska, Alexander Valchkov, Petya Metodieva, M. Doneva, I. Nacheva
A technology for obtaining a new lyophilized functional product with healthy qualities - ''FucoSTEM'' has been created. Its composition includes sources of useful and biologically active ingredients of various origins. The bioformula of the new bioproduct was complied with the requirements for physiological activity, harmlessness and microbial stability. The main parameters of the process of freeze-drying of 4 main components of the composition of the product - colostrum, chokeberry juice, beta-glucans and fructooligosaccharides were established, and their phase behavior at low and high temperatures was studied. Analysis of the thermal curves, obtained by differential scanning calorimetry, provides information on enthalpy, melting temperatures and crystallization, thus proving that an endothermic phenomenon between -5°C and -40°C is observed, which corresponds to the melting of the samples.
{"title":"TECHNOLOGY FOR LYOPHILIZED FUNCTIONAL PRODUCT PRODUCTION ON THE BASIS OF BUFFALO COLOSTRUM","authors":"N. Solakov, Kamelia K. Loginovska, Alexander Valchkov, Petya Metodieva, M. Doneva, I. Nacheva","doi":"10.17930/agl2022222","DOIUrl":"https://doi.org/10.17930/agl2022222","url":null,"abstract":"A technology for obtaining a new lyophilized functional product with healthy qualities - ''FucoSTEM'' has been created. Its composition includes sources of useful and biologically active ingredients of various origins. The bioformula of the new bioproduct was complied with the requirements for physiological activity, harmlessness and microbial stability. The main parameters of the process of freeze-drying of 4 main components of the composition of the product - colostrum, chokeberry juice, beta-glucans and fructooligosaccharides were established, and their phase behavior at low and high temperatures was studied. Analysis of the thermal curves, obtained by differential scanning calorimetry, provides information on enthalpy, melting temperatures and crystallization, thus proving that an endothermic phenomenon between -5°C and -40°C is observed, which corresponds to the melting of the samples.","PeriodicalId":44979,"journal":{"name":"AgroLife Scientific Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48105877","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. Vasi̇u, E. Páll, M. Spînu, S. Zăblău, E. Ungureanu, M. Suătean, G. Brudasca, D. Olah
Diarrhea and digestive disorders represent one of the leading causes of mortality in calves during the first days of life. This study aimed to establish the level of antibiotic resistance of the flora identified in calves with digestive problems and also in their environment. Bălțată Românească calves aged up to three weeks, showing an increased morbidity/mortality from a farm in Brașov county, as well as their habitat were sampled. Eight antimicrobials used in ruminants and on this specific farm (penicillin, streptomycin, amoxicillin, gentamicin, oxytetracycline, tulathromycin, cefaclor, trimethoprim/ sulfamethoxazole) were tested for their efficacy against the bacterial isolates. The samples were subjected to standard microbiological examinations; subsequently, strains such as Escherichia fergusoni, Escherichia hermannii, Shigella dysenteriae, Proteus penneri, Morganella morganii ssp. siboni, Escherichia coli, Escherichia vulneris, with potentially high pathogenicity were identified. The highest antibacterial efficacy was observed with gentamicin. The MAR (multiple antibiotic resistance) index exceeded the value of 0.2 for each of the tested strains, indicating a high level of antibiotic resistance of the isolated bacterial population, thus supporting the inducive role of isolated species in the clinical episodes.
腹泻和消化系统疾病是犊牛出生最初几天死亡的主要原因之一。本研究旨在确定在患有消化问题的小牛及其环境中发现的菌群的抗生素耐药性水平。对Brașov县一个农场的Bălțată rom neascou犊牛及其栖息地进行了采样，发现其年龄达三周，发病率/死亡率增加。试验了用于反刍动物和该特定农场的八种抗菌剂(青霉素、链霉素、阿莫西林、庆大霉素、土霉素、土霉素、头孢氯、甲氧苄啶/磺胺甲恶唑)对细菌分离株的效果。对样品进行标准微生物学检查;随后，弗格森埃希氏菌、赫尔曼埃希氏菌、痢疾志贺氏菌、彭氏变形杆菌、摩根氏摩根杆菌等菌株相继出现。鉴定出具有潜在高致病性的大肠埃希菌、大肠埃希菌和脆弱埃希菌。庆大霉素抗菌效果最好。各菌株的多重抗生素耐药指数均超过0.2，表明分离菌群具有较高的抗生素耐药水平，支持分离菌在临床发病中的诱导作用。
{"title":"EVALUATION OF BACTERIAL INVOLVEMENT IN AN EPISODE OF NEONATAL CALF DIARRHEA","authors":"A. Vasi̇u, E. Páll, M. Spînu, S. Zăblău, E. Ungureanu, M. Suătean, G. Brudasca, D. Olah","doi":"10.17930/agl2022231","DOIUrl":"https://doi.org/10.17930/agl2022231","url":null,"abstract":"Diarrhea and digestive disorders represent one of the leading causes of mortality in calves during the first days of life. This study aimed to establish the level of antibiotic resistance of the flora identified in calves with digestive problems and also in their environment. Bălțată Românească calves aged up to three weeks, showing an increased morbidity/mortality from a farm in Brașov county, as well as their habitat were sampled. Eight antimicrobials used in ruminants and on this specific farm (penicillin, streptomycin, amoxicillin, gentamicin, oxytetracycline, tulathromycin, cefaclor, trimethoprim/ sulfamethoxazole) were tested for their efficacy against the bacterial isolates. The samples were subjected to standard microbiological examinations; subsequently, strains such as Escherichia fergusoni, Escherichia hermannii, Shigella dysenteriae, Proteus penneri, Morganella morganii ssp. siboni, Escherichia coli, Escherichia vulneris, with potentially high pathogenicity were identified. The highest antibacterial efficacy was observed with gentamicin. The MAR (multiple antibiotic resistance) index exceeded the value of 0.2 for each of the tested strains, indicating a high level of antibiotic resistance of the isolated bacterial population, thus supporting the inducive role of isolated species in the clinical episodes.","PeriodicalId":44979,"journal":{"name":"AgroLife Scientific Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45005867","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 aim of the study was to establish a method for obtaining a cake from mixes of rye, oats and triticale. The physicochemical, fatty acid and mineral composition of oat flour, rye and triticale was studied. A series of attempts were made for trial laboratory baking of cake from the mixes. A technological scheme of the technological process has been established. The quality indicators of the finished product have been studied. Organoleptic evaluation and qualitative characteristics of the cake were performed. The cake contains functional ingredients such as soluble and insoluble fiber, β-glucans, macroelements, microelements, fatty acids composition. The cake is rich in oleic and linoleic acid. The finished product is rich in K, Fe and Zn.
{"title":"MЕTHOD FOR OBTAINING A CAKE FROM MIXED FLOURS FROM RYE, OATS AND TRITICALE","authors":"Iliana LAZOVA-BORISOVA","doi":"10.17930/agl2022211","DOIUrl":"https://doi.org/10.17930/agl2022211","url":null,"abstract":"The aim of the study was to establish a method for obtaining a cake from mixes of rye, oats and triticale. The physicochemical, fatty acid and mineral composition of oat flour, rye and triticale was studied. A series of attempts were made for trial laboratory baking of cake from the mixes. A technological scheme of the technological process has been established. The quality indicators of the finished product have been studied. Organoleptic evaluation and qualitative characteristics of the cake were performed. The cake contains functional ingredients such as soluble and insoluble fiber, β-glucans, macroelements, microelements, fatty acids composition. The cake is rich in oleic and linoleic acid. The finished product is rich in K, Fe and Zn.","PeriodicalId":44979,"journal":{"name":"AgroLife Scientific Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43167521","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 research objective was to identify the peculiarities of the emergence of resistance to adverse environmental factors (winter period and droughts), the assessment of local and foreign mutant lines and varieties for resistance by means of proven express tests. It has been confirmed that both traits are slightly variable under the effect of gamma irradiation. The lines and varieties with such traits have been identified, the relationship between the grain productivity in winter wheat has been described, the availability of these traits has been established, as well as the need to take them into account at creating an up-to-date variety model for the conditions of insufficient humidification with a harsh continental climate (North Steppe of Ukraine) in the conditions of climate change. It has been shown that drought resistance remains the key trait, but the possible mechanism for the realization of the genetically determined yield potential by a variety can also be the timing of ripeness, which may help avoiding the most critical periods (middle and early ripeness).
{"title":"STUDY OF VARIABILITY OF WINTER WHEAT VARIETIES AND LINES IN TERMS OF WINTER HARDNESS AND DROUGHT RESISTANCE","authors":"M. Nazarenko, O. Izhboldin, O. Izhboldina","doi":"10.17930/agl2022215","DOIUrl":"https://doi.org/10.17930/agl2022215","url":null,"abstract":"The research objective was to identify the peculiarities of the emergence of resistance to adverse environmental factors (winter period and droughts), the assessment of local and foreign mutant lines and varieties for resistance by means of proven express tests. It has been confirmed that both traits are slightly variable under the effect of gamma irradiation. The lines and varieties with such traits have been identified, the relationship between the grain productivity in winter wheat has been described, the availability of these traits has been established, as well as the need to take them into account at creating an up-to-date variety model for the conditions of insufficient humidification with a harsh continental climate (North Steppe of Ukraine) in the conditions of climate change. It has been shown that drought resistance remains the key trait, but the possible mechanism for the realization of the genetically determined yield potential by a variety can also be the timing of ripeness, which may help avoiding the most critical periods (middle and early ripeness).","PeriodicalId":44979,"journal":{"name":"AgroLife Scientific Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43047649","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. Popa, Alexandra Andreea Anghel, Ioana STANCIU, A. Miteluț, P. Popescu, M. Drăghici, Mihaela Geicu-Cristea, M. Popa
Bread is a food product that represents an important element in human nutrition, considered a convenient type of food, being consumed daily in large quantities in many parts of the world. Adding functional ingredients in bakery products was highly researched lately, because of their ability in the reduction of some chronic diseases besides improving of basic nutritional functions. The aim of the present paper was to obtain bread with different quantities of organic dried sea buckthorn powder (Sorana variety), as functional ingredient. For sample characterization, some phisico-chemical (dry matter %, aw) and nutritional parameters (antioxidant activity, total phenolic content) were determined, as well as sensorial analysis. The study obtained promising results regarding the use of sea buckthorn powder as ingredient in bread making.
{"title":"PRELIMINARY RESEARCH ON USING ORGANIC SEA BUCKTHORN POWDER IN BREAD MAKING","authors":"E. Popa, Alexandra Andreea Anghel, Ioana STANCIU, A. Miteluț, P. Popescu, M. Drăghici, Mihaela Geicu-Cristea, M. Popa","doi":"10.17930/agl2022218","DOIUrl":"https://doi.org/10.17930/agl2022218","url":null,"abstract":"Bread is a food product that represents an important element in human nutrition, considered a convenient type of food, being consumed daily in large quantities in many parts of the world. Adding functional ingredients in bakery products was highly researched lately, because of their ability in the reduction of some chronic diseases besides improving of basic nutritional functions. The aim of the present paper was to obtain bread with different quantities of organic dried sea buckthorn powder (Sorana variety), as functional ingredient. For sample characterization, some phisico-chemical (dry matter %, aw) and nutritional parameters (antioxidant activity, total phenolic content) were determined, as well as sensorial analysis. The study obtained promising results regarding the use of sea buckthorn powder as ingredient in bread making.","PeriodicalId":44979,"journal":{"name":"AgroLife Scientific Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41556127","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. Mitoi, A. Ciocan, Carmen Maximilian, F. Helepciuc, G. Cogălniceanu
Strawberry is one of the most commonly cultivated and consumed plant, due to its organoleptic properties and nutritional values, exerting multiple beneficial health effects. In this study, two distinct strawberry callus lines obtained in different lighting conditions were characterized. The biotechnological potential of these cultures can be demonstrated by biomass and secondary metabolites accumulation. For this reason, growth rate, cellular morphology and viability were assessed. For metabolic potential evaluation, biochemical analyses of total phenolic and flavonoid content, anthocyanin pigments concentrations and antioxidant capacity were performed. The red callus line displayed higher growth rate, total phenolic content and antioxidant activity than the white line. Flavonoids and anthocyanins were present only in the red line. The biomass and these metabolites accumulation varied between subcultures, but were maintained at a high rate, being superior to values reported in planta. Our results show that both callus cultures lines were highly proliferative and the red one being a source of valuable bioactive secondary metabolites, with high antioxidant activity.
{"title":"BIOMASS AND VALUABLE METABOLITES DYNAMIC ACCUMULATION IN STRAWBERRY CALLUS CULTURES","authors":"M. Mitoi, A. Ciocan, Carmen Maximilian, F. Helepciuc, G. Cogălniceanu","doi":"10.17930/agl2022213","DOIUrl":"https://doi.org/10.17930/agl2022213","url":null,"abstract":"Strawberry is one of the most commonly cultivated and consumed plant, due to its organoleptic properties and nutritional values, exerting multiple beneficial health effects. In this study, two distinct strawberry callus lines obtained in different lighting conditions were characterized. The biotechnological potential of these cultures can be demonstrated by biomass and secondary metabolites accumulation. For this reason, growth rate, cellular morphology and viability were assessed. For metabolic potential evaluation, biochemical analyses of total phenolic and flavonoid content, anthocyanin pigments concentrations and antioxidant capacity were performed. The red callus line displayed higher growth rate, total phenolic content and antioxidant activity than the white line. Flavonoids and anthocyanins were present only in the red line. The biomass and these metabolites accumulation varied between subcultures, but were maintained at a high rate, being superior to values reported in planta. Our results show that both callus cultures lines were highly proliferative and the red one being a source of valuable bioactive secondary metabolites, with high antioxidant activity.","PeriodicalId":44979,"journal":{"name":"AgroLife Scientific Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44425146","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}
Inadequate quantity and quality feeds is the major constraints to livestock production in majority of smallholder farmers in Ethiopia. This necessitates the need to follow economically viable forage production. A study was conducted to evaluate the yield and yield related performance of cowpea (Vignia unguiculata L.) varieties under irrigation in 2017 and 2018 years. The experiment was laid down in a split plot design with randomized complete block design (RCBD) arrangement in four replications. There were two main plots of which one was planted with fertilizer and the other one without fertilizer for comparison and the sub plot treatments were eight varieties of Cowpea (Vignia unguiculata) (ILRI 9333, ILRI 9334, ILRI 11114, ILRI 12688, ILRI 12713, Kenkety, Black eye bean and IT92KD258-9). The data collected consisted of plant height (cm), number of branches per plant, forage biomass yield (t ha
饲料数量和质量不足是埃塞俄比亚大多数小农户畜牧生产的主要制约因素。这就需要遵循经济上可行的饲料生产。对2017年和2018年灌溉条件下豇豆品种的产量和产量相关性能进行了评价。实验采用四个重复的随机完全区组设计（RCBD），采用分裂区设计。有两个主小区，一个施肥，另一个不施肥进行比较，子小区处理为8个豇豆品种（ILRI9333、ILRI9334、ILRI11114、ILRI 12688、ILRI12713、Kenkety、黑眼豆和IT92KD258-9）。所收集的数据包括株高（cm）、单株分枝数、牧草生物量产量（t ha＜sup＜-1＜/sup＜）、干物质产量（t ha
{"title":"YIELD AND YIELD RELATED PERFORMANCE OF COWPEA (Vignia unguiculata L.) VARIETIES TESTED AT DIFFERENT FERTILIZER USE UNDER IRRIGATION, CENTRAL GONDAR ZONE, ETHIOPIA","authors":"Alemu Tarekegn, D. Amsalu, K. Adane","doi":"10.17930/agl2022229","DOIUrl":"https://doi.org/10.17930/agl2022229","url":null,"abstract":"Inadequate quantity and quality feeds is the major constraints to livestock production in majority of smallholder farmers in Ethiopia. This necessitates the need to follow economically viable forage production. A study was conducted to evaluate the yield and yield related performance of cowpea (Vignia unguiculata L.) varieties under irrigation in 2017 and 2018 years. The experiment was laid down in a split plot design with randomized complete block design (RCBD) arrangement in four replications. There were two main plots of which one was planted with fertilizer and the other one without fertilizer for comparison and the sub plot treatments were eight varieties of Cowpea (Vignia unguiculata) (ILRI 9333, ILRI 9334, ILRI 11114, ILRI 12688, ILRI 12713, Kenkety, Black eye bean and IT92KD258-9). The data collected consisted of plant height (cm), number of branches per plant, forage biomass yield (t ha<sup<-1</sup<), dry matter yield (t ha<sup<-1</sup<), leaf to stem ratio, number of pods per plant, number of seeds per pod, grain yield (kg ha<sup<-1</sup<), thousand seed weight (g) and haulm yield (t ha<sup<-1</sup<). All data were subjected to analysis of variance procedures, with significance test at p<0.05. The results revealed that highest dry biomass yield (t ha<sup<-1</sup<) was recorded when Cowpea varieties ILRI 9334, ILRI 11114, ILRI 12688 and IT92KD258-9 planted with fertilizer. The highest haulm yield was obtained from Cowpea varieties ILRI 9334, ILRI 11114 and ILRI 12713 when planted with fertilizer and when ILRI 9334, ILRI 12688, ILRI 12713 and IT92KD258-9 Cowpea varities planted with out fertilizer. Cowpea varieties Kenkety and IT92KD258-9 produced higher grain yield compared to other varieties. Cowpea varieties ILRI 9333, ILRI 11114, ILRI 12688, ILRI 12713 and IT92KD258-9 when planted with and with out fertilizer; when variety ILRI- 9334 and Kenkety planted only with fertilizer and also variety Black eye bean when planted with out fertilizer was found economically profitable. Therefore, based on the study results, planting Cowpea varieties ILRI 9334, ILRI 11114, ILRI 12688 and IT92KD258-9 with 100 kg ha<sup<-1</sup< NPS fertilizer appears to be more preferable regarding biomass yield and were found potentially profitable.","PeriodicalId":44979,"journal":{"name":"AgroLife Scientific Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43689969","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}
Experiments have been conducted to determine the effect of a higher hopping degree of wort (120 mg/l and 200 mg/l bitter α-acids) on the antioxidant capacity of ale beer. In one of the experimental variants, dry hopping with aromatic hop pellets (3 g/l) was applied. The higher hopping degree of wort did not lead to disturbance in the fermentation process. For beers containing 200 mg/l α-acids, the most significant was the increase in flavonoids (20.6-23.8%) compared to the variant with 120 mg/l α-acids. The polyphenols in highly hopped beer were increased by 6.6-7.1% compared to moderately hopped beer. The content of anthocyanins was not significantly affected by the addition of more hops. Antioxidant activity, expressed as equivalent vitamin C mmol/l, showed an increase of 4-5.2% for highly hopped beers compared to the control variant; when calculated relative to vitamin E, the increase was 5.8-7.5%. All beers were light, with excellent clarity and enhanced hop aroma.
{"title":"STUDY OF THE INFLUENCE OF A HIGHER HOPPING DEGREE OF WORT ON THE FUNCTIONAL PROPERTIES OF ALE BEER","authors":"I. Tomova, Yolina Dacheva, Albena Mitreva","doi":"10.17930/agl2022230","DOIUrl":"https://doi.org/10.17930/agl2022230","url":null,"abstract":"Experiments have been conducted to determine the effect of a higher hopping degree of wort (120 mg/l and 200 mg/l bitter α-acids) on the antioxidant capacity of ale beer. In one of the experimental variants, dry hopping with aromatic hop pellets (3 g/l) was applied. The higher hopping degree of wort did not lead to disturbance in the fermentation process. For beers containing 200 mg/l α-acids, the most significant was the increase in flavonoids (20.6-23.8%) compared to the variant with 120 mg/l α-acids. The polyphenols in highly hopped beer were increased by 6.6-7.1% compared to moderately hopped beer. The content of anthocyanins was not significantly affected by the addition of more hops. Antioxidant activity, expressed as equivalent vitamin C mmol/l, showed an increase of 4-5.2% for highly hopped beers compared to the control variant; when calculated relative to vitamin E, the increase was 5.8-7.5%. All beers were light, with excellent clarity and enhanced hop aroma.","PeriodicalId":44979,"journal":{"name":"AgroLife Scientific Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42497576","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}
Oleksandr Zhuikov, S. Lavrenko, V.Yu. Lavrys, N. Lavrenko
The research revealed the tendency for an increase in the index of the average area of an individual leaf blade when the seeding rate rose from 50 to 60 thous. pcs./ha, and further there was a reduction in this index when the seeding rate increased to 70 thous. pcs./ha. The average index in the variant of the hybrid Teddy F1 was 72.6 cm
研究发现，当播种量从5万增加到6万时，单叶平均面积指数有增加的趋势。个人电脑。当播种量增加到7万株时，该指数进一步下降。pcs. /公顷。杂交种泰迪F1的平均指数分别为72.6 cm
{"title":"QUANTITATIVE AND QUALITATIVE INDEXES OF THE FUNCTIONING OF PHOTOSYNTHETIC APPARATUS OF ORNAMENTAL SUNFLOWER PLANTS WITH DIFFERENT SEEDING RATES UNDER CONDITIONS OF THE SOUTHERN STEPPE OF UKRAINE","authors":"Oleksandr Zhuikov, S. Lavrenko, V.Yu. Lavrys, N. Lavrenko","doi":"10.17930/agl2022234","DOIUrl":"https://doi.org/10.17930/agl2022234","url":null,"abstract":"The research revealed the tendency for an increase in the index of the average area of an individual leaf blade when the seeding rate rose from 50 to 60 thous. pcs./ha, and further there was a reduction in this index when the seeding rate increased to 70 thous. pcs./ha. The average index in the variant of the hybrid Teddy F1 was 72.6 cm<sup<2</sup<, Double Sunking F1 - 70.3 cm<sup<2</sup<, Santa Fe F1 - 70.8 cm<sup<2</sup<, respectively. The dependence of the index of leaf blade thickness of sunflower hybrids on the factors under study was analogous: this index was minimal in the variant of the hybrid Teddy F1 - 0.58 mm, it fell to 0.55 mm in the variant of the hybrid Double Sunking F1, it was minimal in the variant of the hybrid Santa Fe F1 - 0.52 mm on the average by Factor В. According to our data, the dependence of the intensity of green color of a leaf blade of sunflower hybrids was similar: this index was not essentially dependent on Factor А, but an increase in the seeding rate caused a reduction in the intensity of green color of leaves in comparison with the sample. If the intensity of the sample color is considered to be 100%, the color of a leaf blade in the variant of the hybrid Teddy F1 was at the level of 73%, that of the hybrid Double Sunking F1 - 69%, and that of the hybrid Santa Fe F1 - 69% of the sample. The least intensity of green color of sunflower leaves was with the maximum seeding rate and did not exceed 62% on the average by Factor А. On the average by Factor В, the hybrid Teddy F1 was considered to be a leader by the content of green pigment in its leaves - 8.69 mg/g, in the variant of the hybrid Santa Fe F1 it was 7.45 mg/g, Double Sunking F1 - 8.02 mg/g. The maximum area of the crop photosynthetic apparatus was formed in the variant of the hybrid Teddy F1 being 30.7 thous. m2/ha at the stage of flowering, in the variant of the hybrid Double Sunking F1 - 29.5 thous. m<sup<2</sup</ha and in the variant of the hybrid Santa Fe F1 - 26.1 thous. m<sup<2</sup</ha, respectively. In all the variants of the crop hybrids there was a correlation according to which there was an increase in the index of leaf surface area when the seeding rate rose from 50 to 60 thous. pcs./ha, and when there was a further increase in the seeding rate to 70 thous. pcs./ha, vice versa, this index started decreasing considerably. The index of net productivity of photosynthesis reached its maximum values in the variant of the hybrid Teddy F1 being 1.99 g/m<sup<2</sup</day, on the average by Factor В, that of the hybrid Double Sunking F1 - 1.93 g/m<sup<2</sup</day and that of the hybrid Santa Fe F1 - 1.84 g/m<sup<2</sup</day, respectively.","PeriodicalId":44979,"journal":{"name":"AgroLife Scientific Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48685048","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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