Effect of nano-CaCO3-LDPE packaging on quality and browning of fresh-cut yam
Effect of nano-CaCO3-LDPE packaging on quality and browning of fresh-cut yam
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纳米CaCO3-LDPE包装对鲜切山药品质及褐变的影响
DOI：
10.1016/j.lwt.2014.09.021
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发表时间：
2015-03-01
影响因子：
6
通讯作者：
Xu, Xiaoling
中科院分区：
文献类型：
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作者：
Luo, Zisheng;Wang, Yansheng;Xu, Xiaoling
为评价纳米caco3基低密度聚乙烯（nano-CaCO3-LDPE）包装对鲜切山药品质、褐变指数、整体视觉质量（OVQ）、细菌总数（TBC）、酵母和霉菌总数（YMC）、可滴定酸、抗坏血酸、总酚含量、乙烯产量、丙二醛含量、苯丙氨酸解氨酶（PAL）、多酚氧化酶（PPO）、采用纳米caco3 - ldpe包装可显著降低鲜切山药的TBC和YMC计数。与对照山药样品相比，纳米caco3 - ldpe包装的鲜切山药的PAL、PPO和POD活性显著降低。同时，纳米caco3 - ldpe包装显著抑制了褐变指数、总酚和丙二醛含量的增加，维持了OVQ滴定酸和抗坏血酸的含量。这些结果表明，纳米caco3 - ldpe包装并在10℃下保存是一种抑制鲜切山药褐变和保持其品质的有希望的方法。(C) 2014 Elsevier Ltd.版权所有。
In order to evaluate the effects of nano-CaCO3-based low density polyethylene (nano-CaCO3-LDPE) packaging on the quality of fresh-cut Chinese yam, the browning index, overall visual quality (OVQ), total bacterial count (TBC), and yeast and mold count (YMC), titratable acid, ascorbic acid, total phenolic content, ethylene production, malondialdehyde content phenylalanine ammonia-lyase (PAL), polyphenol oxidase (PPO), and peroxidase (POD) activities were determined during storage at 10 degrees C. TBC and YMC counts of fresh-cut Chinese yam were significantly reduced by nano-CaCO3-LDPE packaging. Nano-CaCO3-LDPE packaged fresh-cut Chinese yam exhibited significantly lower activities of PAL, PPO, and POD compared to the control yam samples. Meanwhile, nano-CaCO3-LDPE packaging significantly inhibited the increase of browning index, total phenolic and malondialdehyde content, and maintained OVQ titratable acid, and ascorbic acid. These results indicated that nano-CaCO3-LDPE packaging and stored at 10 degrees C was a promising approach in inhibiting browning and maintaining quality of fresh-cut Chinese yam. (C) 2014 Elsevier Ltd. All rights reserved.