<i>Zizania latifolia</i> Cell Wall Polysaccharide Metabolism and Changes of Related Enzyme Activities during Postharvest Storage
Jing Huang,
Weijie Wu,
Xiangjun Fang,
Hangjun Chen,
Yanchao Han,
Ben Niu,
Haiyan Gao
Affiliations
Jing Huang
Key Laboratory of Post-Harvest Handling of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Academy of Agricultural Sciences, Food Science Institute, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China
Weijie Wu
Key Laboratory of Post-Harvest Handling of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Academy of Agricultural Sciences, Food Science Institute, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China
Xiangjun Fang
Key Laboratory of Post-Harvest Handling of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Academy of Agricultural Sciences, Food Science Institute, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China
Hangjun Chen
Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Hangzhou 310021, China
Yanchao Han
Key Laboratory of Post-Harvest Handling of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Academy of Agricultural Sciences, Food Science Institute, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China
Ben Niu
Key Laboratory of Post-Harvest Handling of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Academy of Agricultural Sciences, Food Science Institute, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China
Haiyan Gao
Key Laboratory of Post-Harvest Handling of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Academy of Agricultural Sciences, Food Science Institute, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China
The metabolism of polysaccharides in the Zizania latifolia cell wall helps maintain the postharvest quality during storage. Fresh Z. latifolia was stored at 4 °C and 25 °C to evaluate the hardness, cell wall polysaccharide composition, cell wall structure, active ingredients, and cell wall metabolism-related enzyme activities. The results showed that hardness declined concomitantly with an increase in water-soluble pectin content during storage, as well as with a decrease in propectin and cellulose contents. Correlation analysis showed that lower activities of cell wall-degrading enzymes, such as polygalacturonase, cellulase, and β-galactosidase in Z. latifolia stored at 4 °C, were associated with lighter fiberization and greater hardness, compared with those stored at 25 °C. Additionally, the results of infrared spectroscopy showed that texture softening may be attributed to a decrease in the degree of esterification of water-soluble polysaccharides at 25 °C compared to that at 4 °C.
