College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling 712100, China; School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, China.
Henan Agr Univ, Coll Food Sci & Technol, Zhengzhou 450002, China.
Int J Biol Macromol. 2023 Dec 31;253(Pt 5):127226. doi: 10.1016/j.ijbiomac.2023.127226. Epub 2023 Oct 5.
Minimally processed fruits and vegetables (MPFVs) are gaining popularity in households because of their freshness, convenience, and rapid consumption, all of which align with today's busy lifestyles. However, their exposure of large surface areas during peeling and slicing can result in contamination by foodborne pathogens and spoilage bacteria, posing potential food safety concerns. In addition, enzymatic browning of MPFVs can significantly reduce their consumer appeal. Therefore, it is necessary to adopt certain methods to protect MPFVs. Recent studies have shown that utilizing biopolymer-based edible films containing probiotics is a promising approach to preserving MPFVs. These active food packaging films exhibit barrier function, antioxidant function, and antimicrobial function while protecting the viability of probiotics, which is essential to maintain the nutritional value and quality of MPFVs. This paper reviews microbial contamination in MPFVs and the preparation of probiotic-loaded edible films with common polysaccharides (alginate, gellan gum, and starch), proteins (zein, gelatin, and whey protein isolate), prebiotics (oligofructose, inulin, and fructooligosaccharides). It also explores the potential application of probiotic-loaded biopolymer films/coatings on MPFVs, and finally examines the practical application requirements from a consumer perspective.
由于其新鲜度、便利性和快速消费的特点，轻度加工的水果和蔬菜（MPFVs）在家庭中越来越受欢迎，这符合当今忙碌的生活方式。然而，它们在削皮和切片过程中暴露的大表面积会导致食源性病原体和腐败细菌的污染，带来潜在的食品安全问题。此外，MPFVs 的酶促褐变会显著降低其消费者吸引力。因此，有必要采取一定的方法来保护 MPFVs。最近的研究表明，利用含有益生菌的基于生物聚合物的可食用膜是一种有前途的保护 MPFVs 的方法。这些活性食品包装膜具有阻隔功能、抗氧化功能和抗菌功能，同时保护益生菌的活力，这对于维持 MPFVs 的营养价值和质量至关重要。本文综述了 MPFVs 中的微生物污染情况，以及利用常见多糖（海藻酸钠、结冷胶和淀粉）、蛋白质（玉米醇溶蛋白、明胶和乳清蛋白分离物）、益生元（低聚果糖、菊粉和果寡糖）制备负载益生菌的可食用膜/涂层的方法。还探讨了负载益生菌的生物聚合物膜/涂层在 MPFVs 上的潜在应用，最后从消费者的角度考察了其实用性应用要求。
