Abstract：
BACKGROUND: In this study, the effects of biofilm coatings obtained by immobilization of different borates - namely borax (BX), colemanite (COL), and ulexite (UX) - with chitosan (Ch) on the shelf life of rainbow trout fillets were investigated. The immobilization and characterization of borates in Ch were confirmed by scanning electron microscopy, Fourier transform infrared spectroscopy, and zeta potential analysis. In determining the shelf life of fillets that were covered by immersion and stored for 15 days, microbiological (total aerobic mesophilic, psychrotrophic, lactic acid, Pseudomonas, and Enterobacteriaceae bacteria counts) and chemical analyses (total volatile basic nitrogen, thiobarbituric acid reactive substance, and pH levels) were performed at 3 day periodic intervals. In addition, the biodegradation of borates was determined using inductively coupled plasma mass spectrometry in biofilm-coated fillets on the 1st, 8th, and 15th storage days.
RESULTS: The microbial results of the coatings enriched with borates (BX, COL, and UX) at different levels (0, 0.03, and 0.06 mg L-1 ) (due to the immobilization with Ch) show the shelf life was extended by 3-6 days in all of the treatment groups compared with the control.
CONCLUSIONS: It was concluded that BX, COL, and UX coatings enriched by immobilization with Ch increase shelf life and improve fillet quality. In addition, the enrichment of BX, COL, and UX with Ch showed explicit natural protective effects. This study demonstrates that Ch-enriched coatings of BX, COL, and UX can be used as natural bioactive nanocarriers to provide bioactive food ingredients in the seafood processing industry. © 2023 Society of Chemical Industry.
RESULTS: The microbial results of the coatings enriched with borates (BX, COL, and UX) at different levels (0, 0.03, and 0.06 mg L-1 ) (due to the immobilization with Ch) show the shelf life was extended by 3-6 days in all of the treatment groups compared with the control.
CONCLUSIONS: It was concluded that BX, COL, and UX coatings enriched by immobilization with Ch increase shelf life and improve fillet quality. In addition, the enrichment of BX, COL, and UX with Ch showed explicit natural protective effects. This study demonstrates that Ch-enriched coatings of BX, COL, and UX can be used as natural bioactive nanocarriers to provide bioactive food ingredients in the seafood processing industry. © 2023 Society of Chemical Industry.
摘要：
背景：在这项研究中，通过固定不同的硼酸盐获得的生物膜涂层的影响，包括硼砂（BX），硬橄榄石（COL），和ulexite（UX），用壳聚糖（Ch）对虹鳟鱼片的货架期进行了研究。通过扫描电子显微镜（SEM）证实了硼酸盐在壳聚糖中的固定和表征，傅里叶变换红外(FTIR)光谱,和ζ电位(ζ)分析。在确定浸泡覆盖并储存15天的鱼片的保质期时，微生物(全好氧嗜温，嗜冷,乳酸,假单胞菌,和肠杆菌科细菌计数)和化学分析(总挥发性碱性氮，硫代巴比妥酸反应性物质，和pH水平）以3天的周期间隔进行。此外,1日采用电感成对等离子体质谱法(ICP-MS)测定了生物膜涂层鱼片中硼酸盐的生物降解,8th,和第15个存储日。
结果：富含硼酸盐的涂层的微生物结果（BX，COL,和UX）在不同水平（0、0.03和0.06mgL-1）（由于用壳聚糖固定），与对照组相比，所有治疗组的保质期延长了3-6天。
结论：结论是BX，通过用Ch固定而富集的COL和UX涂层增加了保质期并改善了圆角质量。此外,BX的富集，COL,与Ch的UX表现出明显的自然保护作用。这项研究表明，BX的Ch富集涂层，COL,和UX可作为天然生物活性纳米载体，在海产品加工业中提供生物活性食品成分。本文受版权保护。保留所有权利。
结果：富含硼酸盐的涂层的微生物结果（BX，
结论：结论是BX，
