Effects of Drying Methods on the Phenolics Content and Antioxidant Activity of Hosui Pear

被引：0
作者：
Tang L. [1 ,2 ]
Yi J. [1 ]
Bi J. [1 ]
Hou X. [2 ]
Wu X. [1 ]
Zhou M. [1 ]
机构：
[1] Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-products Processing， Ministry of Agriculture, Beijing
[2] Construction Corps Key Laboratory of Special Agricultural Products Further Processing in Southern Xinjiang, College of Life Sciences, Tarim University, Alar, 843300, Xinjiang
来源：
Bi, Jinfeng (bijinfeng2010@163.com) | 2017年 / Chinese Institute of Food Science and Technology卷 / 17期
关键词：
Antioxidant properties; Drying methods; Hosui pear; Principal component analysis (PCA); Pulsed sudden decompression flashing drying; Total phenolics;
D O I：
10.16429/j.1009-7848.2017.12.017
中图分类号：
学科分类号：
摘要：
In order to understand the influence of drying methods on hosui pear chips, the effects of drying methods including hot air drying (HAD), med-and short-wave infrared radiation drying (MIRD), vacuum drying (VD), vacuum freezing drying (FD), hot air-pulsed sudden decompression flashing drying (HA-PSDFD), med-and short-wave infrared radiation-pulsed sudden decompression flashing drying (MIR-PSDFD) on color, ascorbic acid, total phenolics, total flavonoids and antioxidant capacity (ABTS, DPPH and FRAP) of dried hosui pear were investigated. The results showed that the contents of gallic acid, protocatechuic acid, neochlorogenic acid, pcoumaric acid, rutin and quercetin of the hosui pear dried by different methods were significantly increased (P<0.05), and the chlorogenic acid, caffeic acid, epicatechin, ferulic acid and catechin content were significantly decreased (P<0.05). The color, ascorbic acid, total phenolic, total flavonoids and antioxidant capacity were significant different (P<0.05) among the hosui pear chips dried by different methods. The drying time of the MIR-PSDFD was the shortest. The highest total phenolic and antioxidant properties were showed in MIR-PSDFD dried pears. The three principal components, which contained 95.823% information of the initial 14 indexes, were extracted by principal component analysis (PCA). The MIR-PSDFD products have the highest comprehensive appraise score. The MIR-PSDFD can be used in industry as a suitable method for processing high quality hosui pear. © 2017, Editorial Office of Journal of CIFST. All right reserved.
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页码：129 / 138
页数：9
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