Khorshidian Nasim, Khanniri Elham, Mohammadi Mehrdad, Mortazavian Amir M, Yousefi Mojtaba
Department of Food Technology Research, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Front Microbiol. 2021 Sep 17;12:709959. doi: 10.3389/fmicb.2021.709959. eCollection 2021.
One of the most important challenges in the food industry is to produce healthy and safe food products, and this could be achieved through various processes as well as the use of different additives, especially chemical preservatives. However, consumer awareness and concern about chemical preservatives have led researchers to focus on the use of natural antimicrobial compounds such as bacteriocins. Pediocins, which belong to subclass IIa of bacteriocin characterized as small unmodified peptides with a low molecular weight (2.7-17 kDa), are produced by some of the bacteria. Pediocin and pediocin-like bacteriocins exert a broad spectrum of antimicrobial activity against Gram-positive bacteria, especially against pathogenic bacteria, such as through formation of pores in the cytoplasmic membrane and cell membrane dysfunction. Pediocins are sensitive to most protease enzymes such as papain, pepsin, and trypsin; however, they keep their antimicrobial activity during heat treatment, at low temperatures even at -80°C, and after treatment with lipase, lysozyme, phospholipase C, DNase, or RNase. Due to the anti-listeria activity of pediocin on the one hand and the potential health hazards associated with consumption of meat products on the other hand, this review aimed to investigate the possible application of pediocin in preservation of meat and meat products against .
食品工业面临的最重要挑战之一是生产健康安全的食品,这可以通过各种工艺以及使用不同的添加剂来实现,尤其是化学防腐剂。然而,消费者对化学防腐剂的认知和担忧促使研究人员将重点放在使用天然抗菌化合物上,如细菌素。片球菌素属于细菌素的IIa亚类,其特征是分子量低(2.7 - 17 kDa)的未修饰小肽,由某些细菌产生。片球菌素和类片球菌素细菌素对革兰氏阳性菌具有广泛的抗菌活性,尤其是对病原菌,例如通过在细胞质膜上形成孔道和导致细胞膜功能障碍来发挥作用。片球菌素对大多数蛋白酶如木瓜蛋白酶、胃蛋白酶和胰蛋白酶敏感;然而,它们在热处理过程中、甚至在-80°C的低温下以及在经过脂肪酶、溶菌酶、磷脂酶C、脱氧核糖核酸酶或核糖核酸酶处理后仍保持抗菌活性。一方面由于片球菌素的抗李斯特菌活性,另一方面由于食用肉类产品可能存在的健康危害,本综述旨在研究片球菌素在肉类和肉类产品保鲜中对抗……的可能应用。