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多酚-蛋白质共价作用及其对食品体系的影响研究进展 总被引:3,自引:0,他引:3
近年来多酚与蛋白质间的相互作用及其对食品体系的影响受到人们的极大关注。按作用方式可将多酚与蛋白质之间的相互作用分为非共价作用和共价作用。有关非共价作用的研究较完善,相比之下共价作用的研究报道非常少。为推动对食品体系中多酚与蛋白质共价作用的研究,在广泛查阅文献的基础上,本文综述了多酚与蛋白质共价结合的机理、影响因素以及这种结合对食品体系感官特性、功能与营养特性、安全性的影响,并进一步提出了有关食品体系中多酚与蛋白质共价作用今后的研究方向。 相似文献
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多酚因对人类健康有潜在的积极作用而广泛应用在食品体系中。多酚可与食品体系中的蛋白质通过共价或非共价相互作用形成复合物,进而影响蛋白质的结构和性质。作者综述了多酚与蛋白质相互作用机制,及相互作用对蛋白质结构、功能特性、酶活性、氧化性和消化率的影响,并总结了二者相互作用机制的常见分析方法。最后,对多酚与蛋白质相互作用的未来研究方向进行了展望。 相似文献
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蛋白质是人体六大营养素之一,广泛存在于各种食物中,而多酚是植物产生的一种次生代谢产物。二者通过共价和非共价相互作用产生“蛋白质-多酚复合物”。这两种相互作用大多在食品中自发,并显著影响食品的功能特性及质量。本文综述蛋白-多酚复合物的形成机制及表征复合物相互作用的现代分析检测技术与方法,论述相互作用对蛋白质溶解度、热稳定性、乳化性、抗氧化性等功能特性的影响,分析蛋白质-多酚复合物对二者生物活性的影响及其在乳液、薄膜、递送系统方面的应用潜力,旨在为深入研究蛋白质-多酚复合物提供理论基础,同时为蛋白质、多酚的高质化利用与产品开发提供新思路。 相似文献
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《食品与发酵工业》2016,(2):282-288
植物多酚因其独特的化学结构而具有抗肿瘤、抗氧化、抑菌、抗病毒等多种生理功能,在农业、食品、医药等领域得到了广泛应用。多酚可以与蛋白质形成复合物从而导致2种化合物的结构、功能和营养特性的变化。影响蛋白质与多酚非共价相互作用的因素包括温度、p H、蛋白质的类型和浓度,以及酚类化合物的类型和结构。与非共价相互作用相比,蛋白质与多酚共价相互作用将不可逆地改变2种分子的理化性质和功能特性。文中介绍了蛋白质和多酚之间相互作用的生化机制,讨论了用于研究蛋白质与多酚相互作用的方法及所面临的主要挑战。同时,指出了分析蛋白质-多酚产物应考虑的主要问题。 相似文献
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多酚是一种常见的植物化学物质,能有效预防心血管疾病、高血压和肿瘤等病变的出现,却因化学性质不稳定在食品中应用受到限制。蛋白质是重要的食品大分子营养成分,其功能性质对食品营养、品质至关重要。多酚与蛋白质通过共价相互作用和非共价相互作用形成蛋白质-多酚复合物,从而影响蛋白质的功能性质。文章综述了蛋白质-多酚相互作用方式、蛋白质-多酚的乳化特性、凝胶性和抗氧化性以及蛋白质-多酚乳液递送生物活性物质和对食品色泽、风味的影响,以期为蛋白质-多酚功能特性的研究及在食品开发中的应用提供理论依据。 相似文献
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Fan Zhu 《Critical reviews in food science and nutrition》2018,58(11):1808-1831
In plant-based food systems such as fruits, vegetables, and cereals, cell wall polysaccharides and polyphenols co-exist and commonly interact during processing and digestion. The noncovalent interactions between cell wall polysaccharides and polyphenols may greatly influence the physicochemical and nutritional properties of foods. The affinity of cell wall polysaccharides with polyphenols depends on both endogenous and exogenous factors. The endogenous factors include the structures, compositions, and concentrations of both polysaccharides and polyphenols, and the exogenous factors are the environmental conditions such as pH, temperature, ionic strength, and the presence of other components (e.g., protein). Diverse methods used to directly characterize the interactions include NMR spectroscopy, size-exclusion chromatography, confocal microscopy, isothermal titration calorimetry, molecular dynamics simulation, and so on. The un-bound polyphenols are quantified by liquid chromatography or spectrophotometry after dialysis or centrifugation. The adsorption of polyphenols by polysaccharides is mostly driven by hydrophobic interactions and hydrogen bonding, and can be described by various isothermal models such as Langmuir and Freundlich equations. Quality attributes of various food and beverage products (e.g., wine) can be significantly affected by polysaccharide–polyphenol interactions. Nutritionally, the interactions play an important role in the digestive tract of humans for the metabolism of both polyphenols and polysaccharides. 相似文献
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Yi-Hui Dai Jia-Ru Wei Xiao-Qiang Chen 《Comprehensive Reviews in Food Science and Food Safety》2023,22(4):3130-3150
Tea polyphenols (TPs) are important secondary metabolites in tea and are active in the food and drug industry because of their rich biological activities. In diet and food production, TPs are often in contact with other food nutrients, affecting their respective physicochemical properties and functional activity. Therefore, the interaction between TPs and food nutrients is a very important topic. In this review, we describe the interactions between TPs and food nutrients such as proteins, polysaccharides, and lipids, highlight the forms of their interactions, and discuss the changes in structure, function, and activity resulting from their interactions. 相似文献
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Food‐Grade Covalent Complexes and Their Application as Nutraceutical Delivery Systems: A Review 下载免费PDF全文
Fuguo Liu Cuicui Ma Yanxiang Gao David Julian McClements 《Comprehensive Reviews in Food Science and Food Safety》2017,16(1):76-95
Food proteins, polysaccharides, and polyphenols are 3 major food constituents with distinctly different functional attributes. Many proteins and polysaccharides are capable of stabilizing emulsions and foams, thickening solutions, and forming gels, although they differ considerably in their abilities to provide these functional attributes. Many plant polyphenols exhibit beneficial physiological functions, such as antitumor, antioxidant, antibacterial, and antiviral properties. Proteins, polysaccharides, and polyphenols can form complexes with each other, which leads to changes in the functional and nutritional properties of the combined systems. Recently, there has been considerable interest in understanding and utilizing covalent interactions between polyphenols and biopolymers (proteins and polysaccharides). The binary or tertiary conjugates formed may be designed to have physicochemical properties and functional attributes that cannot be achieved using the individual components. This article provides a review of the formation, characterization, and utilization of conjugates prepared using proteins, polysaccharides, and polyphenols. It also discusses the relationship between the structural properties and functionality of the conjugates, and it highlights the bioavailability of bioactive compounds loaded in conjugate‐based delivery systems. In addition, it highlights the main challenges to be considered when preparing and analyzing conjugates. This article provides an improved understanding of the chemical reactions that occur between major food ingredients and how they can be utilized to develop biopolymer‐based delivery systems with enhanced functional attributes. 相似文献
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谷物醇溶蛋白与植物多酚通常是食品基质中共存的两种重要成分,它们在食品的感官、功能特性和品质方面都起着关键作用。两者在食物体系中极易发生相互作用,从而影响两者的结构、功能属性以及生物利用度。本文首先讨论了谷物醇溶蛋白-植物多酚复合物的形成机制和影响因素,两者的相互作用包括非共价作用和共价作用,与其化学结构和制备复合物时所处的外部环境条件密切相关;然后讨论了两者相互作用对复合物功能属性的影响,包括对复合物乳化性、抗氧化活性和热稳定性的影响;最后综述了谷物醇溶蛋白-植物多酚复合物在乳液、薄膜和递送系统中的应用研究进展,以期为谷物醇溶蛋白和植物多酚的高值化利用、产品开发及在食品和相关领域的应用提供理论依据。 相似文献
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蛋白质是人体必须的营养素,也在调控人体生物学功能中扮演了重要的角色。多酚类物质能和食品体系中的膳食蛋白发生相互作用,影响蛋白质的功能特性和营养价值,也能与生物体内激酶、转录因子、受体等功能蛋白相互作用,调控不同信号通路中靶基因的表达,进而发挥健康效应。本文综述了多酚类物质与膳食蛋白及体内功能蛋白相互作用的研究现状,分析了多酚与蛋白的互作机制及常用的研究方法,以期为进一步揭示多酚类物质的生理功能,拓展多酚类物质在食品和医药领域中的应用提供参考依据。 相似文献
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Interactions between polyphenols and macromolecules: quantification methods and mechanisms 总被引:4,自引:0,他引:4
Non-covalent and covalent associations of polyphenols with food macromolecules are two of the most fundamental factors affecting the quality of polyphenol-rich food products. This review therefore describes the biochemical bases of associations between polyphenols and macromolecules, that is, proteins and polysaccharides. Our intent is to provide a level of understanding that can be used to underpin future research directions. This will help to resolve existing issues that limit organoleptic and nutritional qualities of polyphenol-rich foods and drinks. It will also allow a better understanding of the functional consequences of these interactions on food/biological systems. The methods used to study non-covalent and covalent interactions are described, and the limiting factors of each method are emphasized. The biochemical mechanisms of interaction between polyphenols and macromolecules are also described. In processed food, non-covalent polyphenol/macromolecule interactions are largely due to weak associations, and result from a combination of hydrogen bonds and hydrophobic interactions. The biochemical mechanisms for covalent interactions involve oxidation of phenolic compounds, whether enzymatically mediated or not, with the formation of o-quinones or o-semi-quinones, or the cleavage of procyanidin interflavanic bonds in acid medium with the formation of carbocations. The effects of factors such as polyphenol structure, macromolecule structure, relative concentrations of both polyphenol and macromolecule, solvent composition, ionic strength, temperature, and pH are discussed. 相似文献
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