Application and toxicological study of polyvinyl acetate (PVAc) coating on lemon (Citrus limon L.) fruit to extend the shelf life

IF 5.2 Q1 FOOD SCIENCE & TECHNOLOGY
Ajay V. Chinchkar , Anurag Singh , Sukh Veer Singh , Koushik Mazumder , Mahendra Bishnoi , Meenatai G. Kamble
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Abstract

The objective of the present study is to examine how different concentrations of polyvinyl acetate (PVAc) coating (2.5%, 5.0%, 7.5%, 10.0%, and 12.5%) affect the quality of lemons during storage at (27 ± 2)°C, with the aim of extending their shelf life. Lemons are known for being a rich source of citric acid, ascorbic acid, and dietary fiber. During the study, the coated lemons were regularly assessed for various parameters such as weight loss, respiration rate, firmness, decay incidence, total soluble solids, pH, ascorbic acid, and juice content. The results revealed that lemons coated with 10.0% and 12.5% concentrations of PVAc exhibited a significant (P < 0.05) impact in reducing the respiration rate, ethylene production rate, weight loss, and maintaining firmness compared to the control sample. Furthermore, the study also investigated the potential acute toxicological and histological effects of the PVAc (12.5%) coated sample on mice. The results indicated that there were no harmful or lethal effects observed in the experimental mice. Therefore, the PVAc coating at concentrations of 10.0% and 12.5% proves to be beneficial in preserving the natural color of lemons and minimizing senescence during storage at (27 ± 2)°C.

延长柠檬(Citrus limon L.)果实货架期的聚醋酸乙烯酯(PVAc)涂层的应用和毒理学研究
本研究的目的是考察不同浓度的聚醋酸乙烯酯(PVAc)涂层(2.5%、5.0%、7.5%、10.0% 和 12.5%)对柠檬在 (27 ± 2)°C 下储存期间的质量有何影响,从而延长柠檬的货架期。众所周知,柠檬含有丰富的柠檬酸、抗坏血酸和膳食纤维。研究期间,定期对涂膜柠檬的各种参数进行评估,如重量损失、呼吸速率、硬度、腐烂率、总可溶性固形物、pH 值、抗坏血酸和果汁含量。结果显示,与对照样品相比,涂有 10.0% 和 12.5% 浓度 PVAc 的柠檬在降低呼吸速率、乙烯产生速率、重量损失和保持坚硬度方面具有显著影响(P < 0.05)。此外,研究还调查了 PVAc(12.5%)涂层样品对小鼠潜在的急性毒性和组织学影响。结果表明,在实验小鼠身上没有观察到有害或致命的影响。因此,浓度分别为 10.0% 和 12.5% 的 PVAc 涂层有利于保持柠檬的天然色泽,并最大限度地减少在 (27 ± 2)°C 下储存期间的衰老。
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来源期刊
CiteScore
5.80
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