静电纺丝技术在食品领域的应用

静电纺丝是一种利用静电作用力将高分子聚合物转变成微纳米级超细纤维的技术。随着静电纺丝技术的不断发展,近年来其在食品领域的应用也受到越来越多的关注。本文首先简要介绍静电纺丝纳米纤维形成原理,影响静电纺丝的主要溶液参数及工艺参数。之后详细介绍静电纺丝在食品领域的应用,包括在抑菌、抗氧化活性包装,生物活性物质、脂肪和益生菌保护,以及酶的固定化等方面的应用,并分析未来静电纺丝在食品领域的发展方向。     

以多糖和蛋白质为基质利用静电纺丝技术构建生物活性物质递送体系的研究进展

食品在加工和储藏过程中会受到高温、离子强度、酸碱性等诸多因素的影响,导致其生物活性物质极其不稳定。同时,如果这些生物活性物质直接暴露于胃肠道环境中,其生物利用率迅速降低且容易被降解,这些不利因素极大地限制了生物活性物质在食品工业化生产中的应用。因此,如何有效地包埋生物活性物质成为研究的热点问题。静电纺丝技术是一种新兴的活性物质包埋技术,利用该技术制备的纳米纤维在食品工业中具有潜在的应用价值。本文主要综述了静电纺丝的原理、影响因素和类型,以天然多糖和蛋白质为基质通过静电纺丝制备生物活性物质递送体系(纳米纤维)的研究进展,纳米纤维的制备过程、影响因素及其改善方法,并展望了静电纺丝在食品科学领域中的应用前景。     

静电纺丝技术包埋天然酚类化合物研究进展

天然酚类化合物因其对人体健康具有众多益处,近年来在食品、营养学和医药等领域得到了广泛的关注。然而,酚类化合物较差的溶解性、稳定性和生物利用度等严重地限制了其应用。如何有效地保护和运载这些酚类化合物并保持其生物活性成为研究的热点问题。静电纺丝是一种易于操作且成本低廉的纳米级纤维制备技术,所制备的纳米纤维可作为纳米载体对生物活性物质进行包埋和控制释放,因此可作为包埋酚类化合物的一种有效方法。本文概述了静电纺丝技术的基本原理、类型、影响参数、常用的聚合物基质和优势,对静电纺丝技术包埋天然酚类化合物的相关研究进行了综述,最后展望了其在食品工业的应用前景,以期为静电纺丝技术在食品领域应用提供一定的理论指导。     

静电纺丝聚合物基质的分类及食品抗菌包装的应用

随着现代食品工业对产品抗菌包装的要求不断提高,纳米技术和材料的改进与应用逐渐成为研究热点。其中静电纺丝技术是一种新兴的活性物质包埋技术,同时对活性物质也有较好的缓释效果,利用该技术制备的纳米纤维在食品工业中具有潜在的应用价值。该文从天然聚合物(蛋白质、多糖)和合成聚合物(聚乙烯醇、聚氧化乙烯、聚乳酸、聚丙烯)两方面分别综述了静电纺丝技术在食品封装抗菌物质中的应用现状,并展望了静电纺丝在食品科学领域中的应用前景。静电纺丝技术与食品抗菌包装的结合,在未来将得到更加广泛的应用,抗菌包装也将朝着更加多元化的方向发展。     

静电纺丝技术包埋抗菌物质研究进展

近年来,人们已成功地开发出多种不同来源的天然抗菌物质。由于食品加工和储存条件对其抗菌效果产生很大的影响,极大地限制了其在食品工业中的应用。目前常用的包埋技术在包埋抗菌物质时仍存在许多不足之处。因此,开发出高效包埋天然抗菌物质的包埋技术成为研究的热点问题。静电纺丝技术是一种新颖的、简单的生物活性物质包埋技术,能够显著提高生物活性物质的包埋效率、稳定性和利用度,在一定程度上克服了传统包埋技术在包埋生物活性物质时的弊端。本文主要综述了静电纺丝技术的原理,纺丝参数对静电纺丝纳米纤维的影响以及以多糖和蛋白质为基质利用静电纺丝技术包埋抗菌物质及其应用的研究进展,为其在食品工业中的良好应用奠定基础。     

静电纺丝技术在食品领域应用的研究进展

静电纺丝是一项制作纳米尺寸聚合物纤维膜的技术,该技术制备的纳米纤维膜具有比表面积高、连续性好、功能性强等优势。目前,静电纺丝被广泛应用于医药、能源、食品等领域。本文综述了静电纺丝技术的原理、影响因素及其在活性物质包埋、食品检测、食品添加剂等方面的研究进展,并对该技术在植物性产品开发等方面进行展望,为之后其在食品领域的深入研究和应用拓展提供参考。     

静电纺丝技术包埋姜黄素研究进展

静电纺丝作为一种制备纳米纤维的技术越来越受到关注.近年,大量研究利用静电纺丝技术制备含姜黄素的纳米纤维和纳米颗粒.本文介绍静电纺丝的原理和影响因素,以及利用静电喷雾制备包埋姜黄素纳米颗粒的情况.总结姜黄素纳米纤维的制备方法并根据制备纳米纤维的原料(合成高分子和天然高分子)进行分类讨论.论述姜黄素包封的纳米纤维在缓释体系...     

电流体动力学加工技术在食品中的研究进展

电流体动力学加工技术作为一种新型非热加工技术,逐步应用于食品科学技术领域,助力未来食品工业发展。本文对电流体动力学加工技术的工作原理、分类及影响因素,用于食品加工的生物分子原料以及该技术在食品加工中的应用进行详细阐述,同时总结并展望未来该技术在食品领域的发展。电流体动力学加工技术由静电纺丝和静电喷雾技术所组成,该技术可生产功能复杂的微米/纳米级纤维体或微粒,用于食品功能成分的微胶囊包埋、固定化酶、生物传感器与食品活性包装开发、食品3D打印辅助技术等开发。未来研究可以围绕提升纤维体/微粒产量,减少溶剂毒性残留,该技术与食品3D打印融合等方面,助力未来食品工业发展。     

静电纺丝技术及其研究进展

静电纺丝是目前唯一能够直接、连续制备聚合物纳米纤维的方法。概述了静电纺丝技术及其发展历程,静电纺丝射流的稳态和非稳态的研究成果。介绍了静电纺丝机、静电纺丝技术的新进展及静电纺纳米纤维膜的应用。最后指出静电纺丝的研究方向。     

纳米纤维的应用前景

论述了纳米纤维制备新方法和典型纳米纤维的应用前景。指出静电纺丝技术可制得聚合物纳米纺织纤维长丝、实心纳米碳纤维、生物降解性聚合物纳米纤维和聚苯胺及其与常规聚合物共混的纳米导电纤维,其直径取决于纺丝工艺参数;静电纺丝是得到纳米纤维最重要的方法,也是最有可能实现纳米纤维工业化生产的技术。     

Electrohydrodynamic processing of natural polymers for active food packaging: A comprehensive review

The active packaging materials fabricated using natural polymers is increasing in recent years. Electrohydrodynamic processing has drawn attention in active food packaging due to its potential in fabricating materials with advanced structural and functional properties. These materials have the significant capability in enhancing food's quality, safety, and shelf-life. Through electrospinning and electrospray, fibers and particles are encapsulated with bioactive compounds for active packaging applications. Understanding the principle behind electrohydrodynamics provides fundamentals in modulating the material's physicochemical properties based on the operating parameters. This review provides a deep understanding of electrospray and electrospinning, along with their advantages and recent innovations, from food packaging perspectives. The natural polymers suitable for developing active packaging films and coatings through electrohydrodynamics are intensely focused. The critical properties of the packaging system are discussed with characterization techniques. Furthermore, the limitations and prospects for natural polymers and electrohydrodynamic processing in active packaging are summarized.     

Electrospinning of nanofibers: Potentials and perspectives for active food packaging

Electrospun nanofibers with structural and functional advantages have drawn much attention due to their potential applications for active food packaging. The traditional role of food packaging is just storage containers for food products. The changes of retailing practice and consumer demand promote the development of active packaging to improve the safety, quality, and shelf life of the packaged foods. To develop the technique of electrospinning for active food packaging, electrospun nanofibers have been covalently or non‐covalently functionalized for loading diverse bioactive compounds including antimicrobial agents, antioxidant agents, oxygen scavengers, carbon dioxide emitters, and ethylene scavengers. The aim of this review is to present a concise but comprehensive summary on the progress of electrospinning techniques for active food packaging. Emphasis is placed on the tunability of the electrospinning technique, which achieves the modification of fiber composition, orientation, and architecture. Efforts are also made to provide functionalized strategies of electrospun polymeric nanofibers for food packaging application. Furthermore, the existing limitations and prospects for developing electrospinning in food packaging area are discussed.     

Natural antimicrobials and antioxidants added to polylactic acid packaging films. Part I: Polymer processing techniques

Currently, reducing packaging plastic waste and food losses are concerning topics in the food packaging industry. As an alternative for these challenges, antimicrobial and antioxidant materials have been developed by incorporating active agents (AAs) into biodegradable polymers to extend the food shelf life. In this context, developing biodegradable active materials based on polylactic acid (PLA) and natural compounds are a great alternative to maintain food safety and non-toxicity of the packaging. AAs, such as essential oils and polyphenols, have been added mainly as antimicrobial and antioxidant natural compounds in PLA packaging. In this review, current techniques used to develop active PLA packaging films were described in order to critically compare their feasibility, advantages, limitations, and relevant processing aspects. The analysis was focused on the processing conditions, such as operation variables and stages, and factors related to the AAs, such as their concentrations, weight losses during processing, and incorporation technique, among others. Recent developments of active PLA-based monolayers and bi- or multilayer films were also considered. In addition, patents on inventions and technologies on active PLA-based films for food packaging were reviewed. This review highlights that the selection of the processing technique and conditions to obtain active PLA depends on the type of the AA regarding its volatility, solubility, and thermosensitivity.     

静电纺丝技术在食品抗菌保鲜中的应用研究进展

近年来,微/纳米功能材料在食品包装领域发挥着重要作用。静电纺丝作为一种非热物理加工手段,以操作简便、条件温和、制备高效等特征在微/纳米材料的开发及应用方面受到研究者的青睐。特别地,随着静电纺丝技术的发展,以纳米纤维膜为基础开发食品抗菌包装膜材取得了较多新的研究进展。本文在简要介绍了静电纺丝技术的工作原理、影响因素、常用的基质材料、常用抗菌剂类型的基础上,更新了静电纺丝技术在各类食品抗菌保鲜领域的研究进展; 重点综述了静电纺丝技术在肉类食品抗菌保鲜方面的研究现状; 此外,讨论了现有研究的局限性及今后的研究方向,以期为静电纺丝技术在食品保鲜中的深入研究提供参考。     

植物精油在包装领域的研究应用进展

近年来,人们对在食品中使用天然抗菌剂代替化学防腐剂的兴趣日益增加。就此而言,精油这种具有挥发性且安全无害的天然植物次生代谢产物无疑将会在食品功能包装领域得到广泛的研究和应用。目前大量研究表明,加入精油后的食品包装可增强食品的抗菌和抗氧化活性、减缓酶促褐变、改变食品周围的气体环境以及水蒸气渗透等效果。本文特以此为切入点,介绍了植物精油的生物学效应,以及植物精油作为一种活性成分在当前的研究、开发和应用。因此,开发植物精油用作生物基食品包装,将精油本身与纳米乳液纳入活性或智能包装中,加入到产品或包装表面涂层、充入气调包装中、在包装内添加小袋和加入到包装膜上等,无疑可以用来改善产品品质的影响,减少食品行业的浪费。该研究还涵盖了植物精油在食品包装中的常见技术应用,如可降解的生物薄膜、微胶囊包埋、纳米乳液和静电纺丝等,以期为植物精油在包装领域的应用提供新途径。     

静电纺丝技术在食品领域应用的研究进展

由于活性肽、精油及益生菌等生物活性物质易受热、光、加工和储运等外界因素的影响,如何使生物活性物质不受上述条件制约,并保持其活性已成为食品加工技术研究热点.静电纺丝技术因具有操作简便、生物活性物质包封效率高、包封过程中不产生热量、被包封物质易于释放等优点,在食品领域应用的研究日益增多.本文主要介绍了静电纺丝技术的原理、常...     

Effects of emerging food processing techniques on the packaging materials

In recent years, new food processing techniques are attracting a lot of attention. Since some of these techniques might require the processing of foods inside their package, it is important to understand the interaction between the package and the process itself. The main objective of this article is to review the information in literature about the effects of different processing methods on: (i) the structural, mechanical and barrier properties of the materials commonly used in food packaging; and (ii) the migration behavior of additives mainly from plastic packaging films.     

Sustainable edible packaging systems based on active compounds from food processing byproducts: A review

The global food processing industries represent a challenge and a risk to the environment due to the poor handling of residues, which are often discarded as waste without being used in further sidestreams. Although some part of this biomass is utilized, large quantities are, however, still under- or unutilized despite these byproducts being a rich resource of valuable compounds. These biowastes contain biopolymers and other compounds such as proteins, polysaccharides, lipids, pigments, micronutrients, and minerals with good nutritional values and active biological properties with applications in various fields including the development of sustainable food packaging. This review offers an update on the recent advancement of food byproducts recycling and upgrading toward the production of food packaging materials, which could be edible, (bio)degradable, and act as carriers of biobased active agents such as antimicrobials, antioxidants, flavoring additives, and health-promoting compounds. This should be a global initiative to promote the well-being of humans and achieve sustainability while respecting the ecological boundaries of our planet. Edible films and coatings formulations based on biopolymers and active compounds extracted from biowastes offer great opportunities to decrease the devastating overuse of plastic-based packaging. It has become evident that a transition from a fuel-based to a circular bio-based economy is potentially beneficial. Therefore, the exploitation of food discards within the context of a zero-waste biorefinery approach would improve waste management by minimizing its generation, reduce pollution, and provide value-added compounds. Most importantly, the development of edible packaging materials from food byproducts does not compete with food resources, and it also helps decrease our dependency on petroleum-based products. Practical Application Almost 99% of current plastics are petroleum-based, and their continuous use has been devastating to the planet as plastic-derived components have been detected in all trophic levels. Besides, the increasing amounts of food by-products are a socioeconomic and environmental challenge, and halving food loss and waste and turning it into valuable products has become necessary to achieve sustainability and economic circularity. The development of new packaging systems such as edible materials could be one of the solutions to limit the use of persistent plastics. Edible films and coatings by-products-based could also enhance food packaging performance due to their compounds' bioactivities.     

基于静电纺丝纤维的固相萃取和固相微萃取技术在食品安全分析中的研究进展

食品安全分析技术发展对提升食品安全监管能力、确保食品安全具有重要的支撑。近年来,固相萃取和固相微萃取方法在低浓度、复杂基质的食品安全分析领域发挥着重要作用。静电纺丝作为一种纳米材料制备方法,具有操作简便、条件温和、制备高效、易于工业化生产等特征,在新材料研发领域备受关注。近年,以静电纺丝材料为固相萃取和固相微萃取吸附剂的研究取得了较多新的进展,也开始应用于食品安全分析领域。本文总结了食品安全分析领域中基于静电纺丝纤维的固相萃取和固相微萃取技术的研究及应用进展,讨论了现有研究中静电纺丝材料在吸附剂中的应用及相关前处理方法的优势,以期为以静电纺丝纤维为吸附剂的固相萃取和固相微萃取技术在食品安全分析领域的进一步研究提供参考。