文献类型： 外文期刊
作者： Wang, Yubin 1 ; Li, Wu 1 ; Cai, Wenqian 1 ; Ma, Yue 1 ; Xu, Yong 1 ; Zhao, Xiaoyan 1 ; Zhang, Chao 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Vegetable Res Ctr, 50 Zhanghua Rd, Beijing, Peoples R China
2.Beijing Key Lab Fruits & Vegetable Storage & Proc, 50 Zhanghua Rd, Beijing, Peoples R China
3.Minist Agr, Key Lab Vegetable Postharvest Proc, 50 Zhanghua Rd, Beijing, Peoples R China
4.Minist Agr, Key Lab Biol & Genet Improvement Hort Crops North, 50 Zhanghua Rd, Beijing, Peoples R China
5.Beijing Acad Agr & Forestry Sci, Key Lab Urban Agr North, 50 Zhanghua Rd, Beijing, Peoples R China
关键词： Fresh-cut watermelon; Visible light exposure; Cell wall degradation; Drip loss; Polygalacturonase
期刊名称：JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE （ 影响因子：2.701； 五年影响因子：3.574 ）
ISSN： 0022-1155
年卷期： 2018 年 55 卷 5 期
页码：
收录情况： SCI
摘要： Drip loss of fresh-cut watermelon has become a concern for both producers and consumers. The effect of visible light exposure on the drip loss of fresh-cut watermelon was evaluated. Visible light treatments of 3000 and 10 Lux were applied to fresh-cut watermelon at 4 A degrees C during the shelf life for 5 days, with light exposure of 150 Lux as the control. The drip loss of the fresh-cut watermelon at 3000 Lux was 74.8% of that at 150 Lux on the fifth day, and the moisture evaporation at 3000 Lux was 1.89 times that at 150 Lux. Moreover, the light exposure of 3000 Lux reduced the activity of polygalacturonase, which is a key hydrolase related to cell wall degradation. The cell wall degradation ratio of the fresh-cut watermelon at 3000 Lux was 81.7% of that at 150 Lux on the fifth day. Overall, light exposure of 3000 Lux reduced drip loss by accelerating moisture evaporation in fresh-cut watermelon, as well as by reducing the activity of polygalacturonase and the ratio of cell wall degradation. Hence, exposing the fresh-cut watermelon to visible light of 3000 Lux during the shelf life was a feasible way of reducing drip loss.
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