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Tea polyphenols incorporated into alginate-based edible coating for quality maintenance of Chinese winter jujube under ambient temperature

文献类型: 外文期刊

作者: Zhang, Lihua 1 ; Li, Shunfeng 3 ; Dong, Yu 1 ; Zhi, Huanhuan 1 ; Zong, Wei 1 ;

作者机构: 1.Zhengzhou Univ Light Ind, Sch Food & Bioengn, Zhengzhou 450002, Peoples R China

2.Zhengzhou Univ Light Ind, Collaborat Innovat Ctr Food Prod & Safety, Zhengzhou 450002, Peoples R China

3.Henan Acad Agr Sci, Inst Agroprod Proc, Zhengzhou 450002, Peoples R China

关键词: Ziziphus jujube Milt. cv. Dongzao;Preservation;Ambient storage;Edible film;Tea polyphenols

期刊名称:LWT-FOOD SCIENCE AND TECHNOLOGY ( 影响因子:4.952; 五年影响因子:5.383 )

ISSN: 0023-6438

年卷期: 2016 年 70 卷

页码:

收录情况: SCI

摘要: The effects of different concentrations (1 g/L, 3 g/L and 5 g/L) of tea polyphenols incorporated into alginate-based (sodium alginate 1 g/L, glycerol 11.6 g/L and sunflower oil 0.25 g/L) edible coating on the respiration intensity, physicochemical properties, and activities of antioxidant enzymes of fresh winter jujube during 8 days storage under ambient temperature were evaluated. Coated jujube without tea polyphenols and uncoated jujube were stored under the same conditions and served as the controls. The alginate-based edible coating with 1 g/L tea polyphenols significantly reduced red indices, total chlorophylls content, respiration rate, electrolyte leakage and malonaldehyde content while maintaining the ascorbic acid content, total phenol content and the activities of antioxidant enzymes. However, the alginate-based edible coating incorporated with tea polyphenols, whichever their concentrations, had no significant effect on firmness. Alginate-based edible coating with 1 g/L tea polyphenols has a potential to maintain the quality of fresh jujube under ambient temperature. (C) 2016 Elsevier Ltd. All rights reserved.

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