蛋白质多酚多糖三元复合物的结构和功能特性研究进展

蛋白质-多酚-多糖三元复合物能够影响食品体系的感官、功能和营养等特性。本文主要关注在不同食品体系中,蛋白质、多酚和多糖三者之间通过非共价相互作用形成的三元复合物的结构和功能特性,总结蛋白质-多酚-多糖三元复合物对食品和饮料感官和功能等特性的影响,以及相关应用的科学问题,为更好理解蛋白质-多酚-多糖三元复合物在食品体系中的应用提供依据。     

蛋白质-多酚相互作用及在食品开发中的应用进展

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。     

蛋白质-多酚复合物的形成机制及其功能性变化研究进展

不同来源的蛋白质是可食植物的主要成分,而多酚作为次生代谢产物在植物中大量存在。近年来多酚与蛋白质间的相互作用受到极大关注,二者形成的复合物对食品的感官、功能和营养特性产生影响。本文综述了蛋白质-多酚复合物的形成机制,介绍了可逆和不可逆相互作用的机理,并总结了复合物对食品体系功能性质、感官及营养学特性的影响,列举了蛋白质-多酚复合物近些年的研究方法,以期为蛋白质-多酚复合物的深入研究提供参考依据。     

蛋白质与多酚复合物形成机制及其功能性研究进展

多酚是植物次生代谢物,具有良好的功能及生物学特性,被广泛应用于食品行业。除其本身的良好特性外,多酚可以通过非共价和(或)共价相互作用与蛋白质结合,以达到改变蛋白质的结构、提高功能特性、扩宽应用范围的目的。因此,明确蛋白质与多酚复合物形成机制意义重大。文章对蛋白质与多酚非共价相互作用及共价相互作用进行归纳总结,对复合后样品的乳化性、凝胶性、抗氧化活性以及生物利用率的影响进行分析。并基于蛋白质和多酚相互作用的研究现状对其深入研究进行展望,通过蛋白质和多酚相互作用对功能性质的影响,为多酚蛋白质复合物在食品领域的应用提供依据。     

多酚与蛋白质相互作用及其对蛋白质影响

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。     

蛋白质与多酚的互作机制及其应用

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。     

食品级共价复合物在递送生物活性物质方面的研究进展

生物活性物质由于具有抗肿瘤、抗炎、抗氧化和降血脂活性,是功能性食品开发的良好原料,但在生产加工和储存的过程中大多容易分解。为解决这一问题,围绕蛋白质、多糖和多酚设计了食品级的递送系统,形成的复合物改变了食品的功能和营养特性。本文综述了利用蛋白质、多糖、多酚为原料制备不同功能性质的二元或三元食品级复合物的共轭方法、表征和功能性质的研究进展,总结了复合物作为载体的主要类型,以及在生物活性物质传递系统中的应用,并总结了递送体系与人体胃肠道之间的相互作用,强调了在制备和分析复合物作为递送体系时要注意的主要问题并展望了其应用前景。     

植物多酚与食品蛋白质的相互作用

近年来食品中多酚与蛋白质的相互作用是食品化学领域的研究热点之一。蛋白质是食品中的重要组分,其结构和功能特性对食品品质具有重要影响。植物多酚具有抗氧化、抑菌等生物活性,它能够以氢键、疏水相互作用、共价键等方式与蛋白质发生结合,从而影响蛋白质的性质。文中主要综述了多酚与蛋白质的相互作用方式,二者相互作用对蛋白质的结构和功能特性以及对多酚生物活性的影响,以期为多酚在食品中的应用和改善蛋白质的功能特性提供参考。     

谷物醇溶蛋白与植物多酚的互作机理及应用研究进展

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。     

植物多酚-蛋白质复合物生物活性及应用研究进展

蛋白质与植物多酚是食品体系中的重要组成成分,其相互作用被广泛研究,这种相互作用对于合理设计功能性食品和提高多酚、蛋白质的生物利用率具有重要意义.本文主要从植物多酚与蛋白质的关系出发,阐述影响多酚与蛋白质相互作用的因素;同时重点总结近几年多酚-蛋白质复合物的抗氧化性、消化性、致敏性和抑菌性等生物活性的研究进展及其在食品医...     

Biopolymer nanoparticles: a strategy to enhance stability,bioavailability, and biological effects of phenolic compounds as functional ingredients

Phenolic compounds are abundant in nature and have multiple beneficial effects on human health due to their antioxidant, anti-inflammatory, antithrombotic, antiallergenic, anticancer, and antiatherosclerotic properties. For this reason, phenolics are becoming relevant functional ingredients for several industries, mainly the food industry, derived from food consumer exigencies and regulations. However, the use of their beneficial properties still presents some limitations, such as chemical instability under environmental and processing conditions, which leads to structural changes and compromises their biological activities. They also present poor water solubility and sensitivity to pH changes, decreasing their bioavailability in the organism. The technologies for extraction and stabilization of these compounds have evolved rapidly in the development of different delivery systems to encapsulate sensitive active molecules. Biopolymeric nanoparticles are biodegradable polymer-based colloidal systems with sizes ranging from 1 to 1000 nm, and different techniques can be carried out to develop them. These systems have emerged as a green and effective alternative to improve stability, bioavailability, and biological effects of phenolic compounds. This comprehensive review aims to present an overview of recent advances in encapsulation processes of phenolic compounds within biopolymer nanoparticles as delivery systems and the impact on their physicochemical properties and biological effects after encapsulation. © 2021 Society of Chemical Industry.     

Food protein-based materials as nutraceutical delivery systems

Incorporation of bioactive compounds–such as vitamins, probiotics, bioactive peptides, and antioxidants etc.–into food systems provide a simple way to develop novel functional foods that may have physiological benefits or reduce the risks of diseases. As a vital macronutrient in food, proteins possess unique functional properties including their ability to form gels and emulsions, which allow them to be an ideal material for the encapsulation of bioactive compounds. Based on the knowledge of protein physical–chemistry properties, this review describes the potential role of food proteins as substrate for the development of nutraceutical delivery systems in the form of hydrogel, micro-, or nano- particles. Applications of these food protein matrices to protect and delivery-sensitive nutraceutical compounds are illustrated, and the impacts of particle size on release properties are emphasized.     

Emulsion design for the delivery of β-carotene in complex food systems

β-Carotene has been widely investigated both in the industry and academia, due to its unique bioactive attributes as an antioxidant and pro-vitamin A. Many attempts were made to design delivery systems for β-carotene to improve its dispersant state and chemical stability, and finally to enhance the functionality. Different types of oil-in-water emulsions were proved to be effective delivery systems for lipophilic bioactive ingredients, and intensive studies were performed on β-carotene emulsions in the last decade. Emulsions are thermodynamically unstable, and emulsions with intact structures are preferable in delivering β-carotene during processing and storage. β-Carotene in emulsions with smaller particle size has poor stability, and protein-type emulsifiers and additional antioxidants are effective in protecting β-carotene from degradation. Recent development in the design of protein-polyphenol conjugates has provided a novel approach to improve the stability of β-carotene emulsions. When β-carotene is consumed, its bioaccessibility is highly influenced by the digestion of lipids, and β-carotene in smaller oil droplets containing long-chain fatty acids has a higher bioaccessibility. In order to better deliver β-carotene in complex food products, some novel emulsions with tailor-made structures have been developed, e.g., multilayer emulsions, solid lipid particles, Pickering emulsions. This review summarizes the updated understanding of emulsion-based delivery systems for β-carotene, and how emulsions can be better designed to fulfill the benefits of β-carotene in functional foods.     

Factors Affecting the Functional Properties of Whey Protein Products: A Review

Numerous why protein products (WPP) have been developed as excellent food ingredients with unique functional properties. However, the functional properties of WPP are affected by several compositional and processing factors. Recently, novel processing technologies such as high hydrostatic pressure, ultrasound, extrusion and tribomechanical activation have been used to modify the functional properties of WPP. Also, WPP have been used as delivery systems for functional ingredients and in edible films. The present paper reviews the latest developments in the role of different factors on the functional properties of WPP with emphasis on novel processing technologies, and interaction with other food ingredients     

Review on the Stability Mechanism and Application of Water‐in‐Oil Emulsions Encapsulating Various Additives

Water‐in‐oil (W/O) emulsions can be used to encapsulate and control the release of bioactive compounds for nutrition fortification in fat‐based food products. However, long‐term stabilization of W/O emulsions remains a challenging task in food science and thereby limits their potential application in the food industry. To develop high‐quality emulsion‐based food products, it is essential to better understand the factors that affect the emulsions’ stability. In real food system, the stability situation of W/O emulsions is more complicated by the fact that various additives are contained in the products, such as NaCl, sugar, and other large molecular additives. The potential stability issues of W/O emulsions caused by these encapsulated additives are a current concern, and special attention should be given to the relevant theoretical knowledge. This article presents several commonly used methods for the preparation of W/O emulsions, and the roles of different additives (water‐ and oil‐soluble types) in stabilizing W/O emulsions are mainly discussed and illustrated to gain new insights into the stability mechanism of emulsion systems. In addition, the review provides a comprehensive and state‐of‐art overview of the potential applications of W/O emulsions in food systems, for example, as fat replacers, controlled‐release platforms of nutrients, and delivery carrier systems of water‐soluble bioactive compounds. The information may be useful for optimizing the formulation of W/O emulsions for utilization in commercial functional food products.     

Olive byproducts and their bioactive compounds as a valuable source for food packaging applications

Among the most important agro-industrial activities in the Mediterranean basin, olive oil production has a high impact on the economy of many Mediterranean countries. However, olive oil extraction generates huge quantities of byproducts, including leaves, pomace residues, stones and wastewater, which have severe environmental impacts mainly because of their phytotoxicity and great organic content. Olive oil byproducts are regarded as inexpensive and abundant raw materials rich in bioactive compounds with high and varied health-related activities. Several phenolic compounds and terpenoids were recovered from olive byproducts using different conventional and advanced extraction methods due to their potential to be used in food, packaging, pharmaceutical, and cosmetic industries. Recently, the use of olive byproducts and their functional compounds to enhance the functional properties of packaging systems was investigated as a sustainable strategy for food preservation, fostering the sustainability of the olive-oil chain, and promoting circular economy. In this framework, the main goals of this review are to summarize the main bioactive compounds in olive byproducts, to review the main advancements in their extraction, purification, and characterization, and finally to discuss their applications in food packaging systems as well as safety-related aspects.     

基于食品液态体系的功能因子靶向传输系统的构建及其释放研究

功能因子的储藏稳定性和控制释放是通过一定的微囊化控释传输系统来实现的。本研究采用挤出滚圆和流化床薄膜包衣技术,构建了基于液态食品体系的醋酸酯抗消化淀粉薄膜包衣微丸传输系统,分别考察了不同厚度的醋酸酯淀粉薄膜包衣微丸在酸奶中储藏过程及体外模拟人体消化道运转过程中功能因子的释放规律及微丸表面包衣膜层的微观形貌变化。研究表明,在相同的储藏时间下,包衣厚度越大,微丸表面包衣膜层越完好,越能有效阻止功能因子的释放;当醋酸酯抗消化淀粉包衣增重达到9.94%时,其中的功能因子在储藏22d不释放;同时,在酸奶中储藏不同时间后,不同包衣厚度的微丸在模拟消化道中运转时的表面形貌变化与其释放情况相符。研究为筛选适合液态食品体系的功能因子控释传输载体材料及控释传输系统的构建奠定了基础。