Quality analysis and pectin characteristics of winter jujube processed by microwave coupled with pulsed vacuum drying (MPVD)

文献类型： 外文期刊

第一作者： Ji, Zhuofan

作者： Ji, Zhuofan;Zhao, Dandan;Yin, Junye;Liu, Xueqiang;Hao, Jianxiong;Ding, Shenghua

作者机构：

关键词： Antioxidant capacity; Bioactive compounds; Jujube; Drying; Pectin properties

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：6.0； 五年影响因子：6.0 ）

ISSN： 0023-6438

年卷期： 2024 年 201 卷

页码：

收录情况： SCI

摘要： The research aims to investigate the impact of microwave coupled with pulsed vacuum drying (MPVD) at different pulsed vacuum ratios on the drying characteristics and pectin properties of winter jujube, in comparison with freeze drying (FD) and hot air drying (HAD). The drying kinetics, bioactive substances, antioxidant capacity, physical properties, and pectin characteristics were analyzed. Compared to HAD, MPVD-dried samples exhibited significantly reduced drying time by 74.1 - 81.4%. MPVD and FD samples demonstrated higher rehydration ability, bioactive compound contents, and antioxidant capacity. Furthermore, when using a vacuum pulse-ratio regulation (PR) of 3 (90 s on, 30 s off), along with a microwave power of 250 W (5 W g(-1) ), the highest drying rate was achieved while maintaining higher retention rates of total phenols, flavonoids, polysaccharides, and cell wall pectin content closer to that of FD sample. Water soluble pectin (WSP) was found to the predominant pectin in jujube, and the WSP and chelate-soluble pectin (CSP) content were positively corelated with the total phenols and flavonoid, while the content of CSP and carbonate-soluble pectin (NSP) shows a positive correlated with the hardness and crispness. These findings indicated that MPVD was an efficient method for getting dehydrated jujube products with high quality.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序