天然食品防腐剂——细菌素

细菌素是一类安全、高效、无毒的天然食品防腐剂。本文介绍了细菌素的分类,以及细菌素与抗生素的区别,以尼生素,纳他霉素为重点阐述了细菌素的抑菌机理及在肉制品中的应用。     

天然食品防腐剂-细菌素的研究新进展

细菌素是由细菌代谢产生的,具有抑菌杀菌作用的蛋白或多肽。细菌素是一种天然防腐剂,具有在体内可被蛋白酶消化,低毒无副作用的特点,非常适用于食品工业。其中乳酸链球菌素(Nisin)已被广泛应用。本文就细菌素的分类、检测及与抗生素的区别做一综述,并对细菌素的应用做了展望。     

天然食品防腐剂——乳酸链球菌素

乳酸链球菌素是一种多肽类化合物,进入人体后易被蛋白酶分解,是一种高效安全的天然食品防腐剂。由于它能有效地抑制引起食品腐败的革兰氏阳性菌的生长和繁殖,可用于肉制品、乳制品、植物蛋白食品、罐装食品的防腐保鲜,目前在国内外已得到广泛应用。     

生物防腐剂—细菌素

天然食品防腐剂取代化学合成防腐剂是一种必然趋势。细菌素是一类安全、高效、无毒的天然食品防腐剂。本文阐述了细菌素的分类、抑菌机理、合成和修饰，并简要介绍了细菌素作为食品添加剂，在食品防腐保鲜中的应用。尽管目前Nisin等细菌素由于受到抑菌效果、价格等方面因素的限制，其应用尚不能完全取代化学防腐剂，但是它作为一类理想的天然食品防腐剂，应用前景将十分广阔。     

细菌素及其在食品防腐保藏中应用的研究进展

细菌素是一类由细菌在代谢过程中产生的具有抑菌作用的多肽或蛋白质.文中论述了细菌素的类型、提取方法及在肉食品工业、奶制品工业、酿酒业、蔬菜加工和食品防腐保藏中的应用进展.     

天然食品防腐剂乳酸菌素──Nisin

天然食品防腐剂乳酸菌素──Ｎｉｓｉｎ孔健，马桂荣（山东大学微生物研究所，济南，２５１０００）随着人们生活水平的提高，人们的膳食结构发生了变化，由开始量的满足转向质的提高，人们总希望消费不含或少含化学合成防腐剂的天然食品，并能长期保存。天然食品防腐剂的...     

微生物防腐剂细菌素在食品上的应用

综述细菌素的分类、与抗生素的区别、细菌素合成及其抗菌机制,并对其在食品工业中的应用做了分类描述.最后,通过对目前情况的分析展望了细菌素未来的发展方向.     

食品防腐剂的研究进展

根据抗菌剂发展现状及一些最新研究动态，综合叙述了食品抗菌剂防腐剂的开发现状及研究进展。     

天然食品防腐剂的研究与开发

本文系统地介绍了一些重要的天然防腐物质。     

Natural Antifungal Peptides/Proteins as Model for Novel Food Preservatives

A large range of ingredients for food and food products are subject to fungal contamination, which is a major cause of destruction of crops, exposure of animals and humans to invasive mycotoxins, and food spoilage. The resistance of fungal species to common preservation methods highlights the necessity of new ways to increase the shelf life of raw material for food and food products. Antimicrobial peptides and proteins (AMPs) are essential members of the immune system of most living organisms. Due to their broad range of activity and their stability to commonly used food processes, they represent promising alternatives to traditional preservatives. However, despite the growing number of reports of potential food applications of these AMPs, the number of approved peptides is low. Poor solubility, toxicity, and a time‐consuming extraction are hurdles that limit their application in food products. Thanks to a deep understanding of the key determinants of their activity, the development of optimized synthetic peptides has reduced these drawbacks. This review presents natural and synthetic antifungal peptides/proteins (AFPs), effective against food‐related fungi, with particular emphasis on AFPs from plant sources. The design of novel antifungal peptides via key elements of antifungal activity is also reviewed. The potential applications of natural and synthetic AFPs as novel antifungal food preservatives are finally discussed.     

天然抗菌物在食品防腐中的应用

介绍了天然抗菌物的各种来源及其在食品防腐中的应用现状与应用潜力。     

天然食品防腐剂及其在食品中的应用研究

食品防腐剂是指为提高食物的色、香、味,或者为延缓由微生物、酶解和氧化引起的食品降解,而添加到食物中的天然物质或化学合成物质。在食品工业中,常用的防腐剂主要为化学合成防腐剂,由于人们食品安全意识的逐步提高,以及化学合成防腐剂对人体健康存在潜在的风险及隐患,消费者对于化学防腐剂的安全性一直存在顾虑。相比之下,天然防腐剂因其抑菌效果好、绿色天然和无毒性的特点越来越受到人们的青睐,消费者对天然防腐剂的需求也日益增加。因而天然防腐剂已然成为当下的研究热点,并且在当今食品行业已得到广泛的研究和应用。文章综述了植物、动物和微生物等不同来源的天然防腐剂及其在食品中的应用,以提高食品质量,延长食品保质期。     

天然肽类防腐剂研究进展

综述了天然肽类食品防腐剂的研究进展 ,主要论述了 4种研究最多的肽类防腐剂 :溶菌酶、昆虫抗菌肽、乳酸链球菌素和鱼精蛋白的结构、抗菌机理等方面的研究成果 ,简要介绍了解决天然防腐剂抗菌谱窄、抗菌效果差、生产成本高等问题而采取的一些措施     

Shelf‐life characteristics of fresh oysters and ground beef as affected by bacteriocin‐coated plastic packaging film

Fresh oysters and ground beef were wrapped in antimicrobial films coated with a bacteriocin (nisin or lacticin NK24) incorporated into a polyamide binder layer. The packaged foods were stored at 3 and 10 °C and changes in counts of total aerobic bacteria and coliform bacteria were monitored together with appropriate quality attributes in order to determine the influence of the bacteriocin‐coated films on quality preservation and shelf‐life extension. Compared to plain low‐density polyethylene film, plastic films with incorporated bacteriocins slowed down microbial growth on packaged oysters and ground beef at both temperatures, contributed in some degree to the preservation of chemical quality and extended shelf‐life significantly. The effects of the antimicrobial films on the suppression of coliform bacterial growth were more pronounced at 10 than at 3 °C , while the effects on total aerobic bacteria were consistently evident at both temperatures. There was no difference in food quality preservation between the two types of antimicrobial film. © 2002 Society of Chemical Industry     

无前导肽细菌素的研究进展及在食品保藏中的应用

细菌素作为食品防腐剂在食品工业中已广泛应用。无前导肽细菌素是一类由核糖体合成、不进行任何翻译后修饰、N端没有前导肽序列的细菌素。该文对目前无前导肽细菌素的类型、生物合成、理化特征、抗菌机制及在食品保藏中的应用进行综述。分析表明,该类细菌素通常含27个~53个氨基酸,富含赖氨酸残基而缺少半胱氨酸残基,均带有正电荷,有较高的等电点;该类细菌素受受体影响小,静电作用和疏水作用在抑菌机制中发挥重要作用,多数具有广谱抑菌活性;该类细菌素遗传结构简单,便于在其它微生物中表达,易于规模化生产。     

Natural Antimicrobial Edible Coatings for Microbial Safety and Food Quality Enhancement

Natural antimicrobial agents have been investigated as alternatives to synthetic ones for ensuring food safety and quality. However, the practical use of these preservatives in the food industry is limited due to their negative impact on the odor and taste of food products, as well as the early loss of functionality due to their rapid diffusion and interaction with food components. The incorporation of natural antimicrobial agents into edible coatings has been investigated to control diffusion of active compounds and maintain their concentrations at a critical level on a food surface. Recently, nanoencapsulating and multilayered/nanolaminate delivery systems have emerged as promising tools to enhance the functionality of edible coatings. This review highlights the potential use of polymeric edible coatings for the incorporation of natural antimicrobial agents and the improvement of their controlled release in food systems. The methods used to assess the antimicrobial activity of encapsulated natural antimicrobial agents and the most recent findings regarding the application of nanoencapsulating and multilayered/nanolaminate delivery systems in food products are also discussed.     

几种天然食品防腐剂的应用简介

综述了各种天然食品防腐剂的研究现状和在食品工业中的应用,展望了其应用前景。