共查询到19条相似文献,搜索用时 203 毫秒
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乳清蛋白在运动营养中作用 总被引:1,自引:0,他引:1
该文通过对乳清蛋白成分介绍,阐明乳清蛋白对于运动营养益处,主要表现为提高免疫力、抗氧化、防止损伤与疲劳等方面,并指出运动饮料将成为乳清综合利用一个重要方向。 相似文献
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2006年7月20日,在由美国乳品出口协会主办的“乳清蛋白营养研讨会2006”上,健康和营养专家共同探讨了乳清蛋白独特的健康益处和营养价值。他们介绍了各种蛋白质在保健和抗病方面的最新科学研究。由于乳清蛋白具有高吸收性,完整的氨基酸成分,低脂肪和低胆固醇特点,以及全面的健康益处,乳清蛋白被推荐为消费者理想的保健佳品。 相似文献
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牛奶中的酪蛋白和脂肪,是制成奶酪的主要成分,余下的液态乳清,是不是就没有用了呢?恰恰相反,副产品里却含有着牛奶中的精华——乳清蛋白。在由美国乳品出口协会主办的“乳清蛋白营养研讨会2006”上,来自上海市营养学会的理事长赵法教授就指出:乳清蛋白是从牛乳中分离提取的一种 相似文献
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营养对运动员的运功能力有着重要的影响。乳清蛋白中含有多种营养成分和生物活性物质,能够起到增加肌肉力量、改善机体组成、促进快速恢复、增强免疫的作用,对提高运动成绩具有重要作用。 相似文献
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乳清蛋白胶体物化特性的应用研究进展 总被引:1,自引:0,他引:1
乳清蛋白是生产干酪时的一种天然副产物,是牛奶中乳蛋白的主要成分之一,它不仅具有优异的营养特性,还具有独特的胶体物化特性。本文综述了利用乳清蛋白胶体特性发展的微胶囊和可食用包装膜技术的研究进展。利用乳清蛋白的凝胶特性,在合适的条件下制备以乳清蛋白为壁材的微胶囊,可以对功能成分进行包埋并实现肠溶缓释;制备具有一定机械强度和阻隔性的可食性蛋白膜,可以运载多种功能因子,作为食品包装减缓食品中的营养流失并延长食品的货架期。 相似文献
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竞技体育运动对当代运动员的身体素质要求越来越高,因此需要更科学、更合理地安排饮食,为运动员提供科学合理的营养供给。篮球运动员要想在重大体育比赛中取得优异成绩,必须要参与高强度的训练和演练,这对篮球运动员的体能素质和竞技能力提出了较高的要求。常见的膳食蛋白质难以满足训练和竞赛的需要,而乳清蛋白含有丰富的生物活性成分和丰富支链氨基酸,可帮助运动员提升免疫力、缓解运动性疲劳、增加肌肉力量和抗氧化能力等,对于提高运动员综合竞技能力具有重要意义。本文介绍了乳清蛋白的营养特点,并论述了补充乳清蛋白对篮球运动员竞技能力的积极影响,以供参考。 相似文献
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Steven Young 《中国食品工业》2008,(2):30-32
<正> 乳清和乳清蛋白产品在过去的60多年中已经被成功应用于冰淇淋和其他冷冻乳制品甜食中。甜乳清、乳清浓缩蛋白(蛋白质含量34~89%)和乳清分离蛋白(蛋白质含量≥90%)是最常用的乳清产品。其他的乳清配料,如脱乳糖乳清和脱盐乳清也是常用的配料。成本优势和提升产品质量是使用乳清产品的主要出发点, 相似文献
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Mati Ullah Khan Hong Lin Ishfaq Ahmed Yan Chen Jinlong Zhao Tian Hang Binaka Prabashini Dasanayaka Zhenxing Li 《Comprehensive Reviews in Food Science and Food Safety》2021,20(5):4480-4510
Whey and its components are recognized as value-added ingredients in infant formulas, beverages, sports nutritious foods, and other food products. Whey offers opportunities for the food industrial sector to develop functional foods with potential health benefits due to its unique physiological and functional attributes. Despite all the above importance, the consumption of whey protein (WP) can trigger hypersensitive reactions and is a constant threat for sensitive individuals. Although avoiding such food products is the most successful approach, there is still a chance of incorrect labeling and cross-contamination during food processing. As whey allergens in food products are cross-reactive, the phenomenon of homologous milk proteins of various species may escalate to a more serious problem. In this review, nonthermal processing technologies used to prevent and eliminate WP allergies are presented and discussed in detail. These processing technologies can either enhance or mitigate the impact of potential allergenicity. Therefore, the development of highly precise analytical technologies to detect and quantify the existence of whey allergens is of considerable importance. The present review is an attempt to cover all the updated approaches used for the detection of whey allergens in processed food products. Immunological and DNA-based assays are generally used for detecting allergenic proteins in processed food products. In addition, mass spectrometry is also employed as a preliminary technique for detection. We also highlighted the latest improvements in allergen detection toward biosensing strategies particularly immunosensors and aptasensors. 相似文献
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全民健康意识的不断增强使运动营养食品的市场容量不断扩大,然而产品同质化严重、缺乏创新等因素限制了行业的发展。酵母蛋白营养价值高,富含必需氨基酸和支链氨基酸,具有慢消化特性,目前主要作为蛋白质补充剂和肌肉恢复补充剂等应用于食品加工。酵母蛋白可增强食品中蛋白质的营养价值、部分替代乳清蛋白,并延长饱腹感,在运动营养食品中具有广阔的应用前景。本文从运动营养食品中常见营养素功能、酵母蛋白营养特性和应用现状入手,对酵母蛋白在运动营养食品中的应用前景进行分析总结,为运动营养食品创新发展提供思路。
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乳蛋白决定奶类品质,而热加工会影响乳清蛋白尤其是β-乳球蛋白的稳定性。热处理时,乳清蛋白不仅自身发生不同程度的聚合,而且通过巯基-二硫键分别与酪蛋白胶束和乳脂球膜蛋白发生结合。乳清蛋白亦可与其它乳成分如乳糖、钙盐、乳脂发生热聚合作用。本文根据乳品受热温度的不同,针对乳清蛋白间及其与其它乳成分的相互作用途径进行分析,阐明热聚合作用过程及机理,对改善乳制品的热稳定性、凝胶性等功能性质具有重要的理论意义,拓宽乳清蛋白作为配料在相关食品体系中的应用。 相似文献
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Corn, rice and potato flour were extruded with sweet whey solids (SWS) or whey protein concentrate (WPC) using low and high shear extrusion processing conditions. WPC added at product content of 25% had minimal effect on the texture of extruded products. Expansion and breaking strength were improved in some processes through changes in extrusion shear and moisture. Whey product incorporation resulted in reduced specific mechanical energy input to the process. Increasing whey product concentration beyond 25% reduced expansion and water absorption indices significantly, affecting textural hardness. Product quality characteristics were directly related to the whey product content. 相似文献
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Whey is a value‐added product that is utilized in many food and beverage applications for its nutritional and functional properties. Whey and whey products are generally utilized in dried ingredient applications. One of the primary sources of whey is from colored Cheddar cheese manufacture that contains the pigment annatto resulting in a characteristic yellow colored Cheddar cheese. The colorant is also present in the liquid cheese whey and must be bleached so that it can be used in ingredient applications without imparting a color. Hydrogen peroxide and benzoyl peroxide are 2 commercially approved chemical bleaching agents for liquid whey. Concerns regarding bleaching efficacy, off‐flavor development, and functionality changes have been previously reported for whey bleached with hydrogen peroxide and benzoyl peroxide. It is very important for the dairy industry to understand how bleaching can impact flavor and functionality of dried ingredients. Currently, the precise mechanisms of off‐flavor development and functionality changes are not entirely understood. Iron reactions in a bleached liquid whey system may play a key role. Reactions between iron and hydrogen peroxide have been widely studied since the reaction between these 2 relatively stable species can cause great destruction in biological and chemical systems. The actual mechanism of the reaction of iron with hydrogen peroxide has been a controversy in the chemistry and biological community. The precise mechanism for a given reaction can vary greatly based upon the concentration of reactants, temperature, pH, and addition of biological material. In this review, some hypotheses for the mechanisms of iron reactions that may occur in fluid whey that may impact bleaching efficacy, off‐flavor development, and changes in functionality are presented. Practical Application: Cheese whey is bleached to remove residual carotenoid cheese colorant. Concerns regarding bleaching efficacy, off‐flavor development, and functionality changes have been reported for whey proteins bleached with hydrogen peroxide and benzoyl peroxide. It is very important for the dairy industry to understand how whey bleaching can impact flavor and functionality of dried ingredients. Proposed mechanisms of off‐flavor development and functionality changes are discussed in this hypothesis paper. 相似文献
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Dominic Buchanan Wayne Martindale Ehab Romeih Essam Hebishy 《International Journal of Dairy Technology》2023,76(2):291-312
Whey has several environmental risks if disposed of as waste in watercourses. However, there are numerous valorisation techniques to convert it into valuable and highly nutritious products. Techniques such as membrane filtration may be utilised, but these are not applicable to all categories of whey. Novel methodologies that are agile enough to deal with whey variability can produce valorised products. This review assesses the capability of whey processing techniques, applications and methodologies, discussing pertinent research that can innovate product development further. It focuses on environmental impacts of whey as a waste and ways of minimising it. 相似文献