Effect of picking time on lignin metabolism and activities of related enzymes of Sichuan-okra fruit

doi:10.3969/j.issn.1004-1524.2018.09.11

›› 2018, Vol. 30 ›› Issue (9): 1519-1525.DOI: 10.3969/j.issn.1004-1524.2018.09.11

• Horticultural Science • Previous Articles Next Articles

Effect of picking time on lignin metabolism and activities of related enzymes of Sichuan-okra fruit

XIN Songlin1, 2, XIANG Zepan², KANG Xiaoqin², XIAO Chuan², QIN Wen^{1, *}

1. College of Food Science, Sichuan Agricultural University, Ya’an 625014, China;
2. College of Food Science, Sichuan Tourism College, Chengdu 610100, China

Received:2017-11-06 Online:2018-09-25 Published:2018-10-15
Contact: 秦文,E-mail: qinwen1967@aliyun.com
Supported by:
四川省科技厅科技支撑计划(2016JY0119); 四川省教育厅重点项目(18ZA0367); 大学生创新创业项目(201611552053)

Abstract

Abstract: To find out the characteristics and regularity of lignin change in okra fruit at different picking time and determine the appropriate picking time for Sichuan-okra, content of lignin in okra was determined and analyzed at different picking time. The results showed that the content of lignin and cellulose in okra increased significantly in 3-5 d after flowering. Phenylalanine ammonia-lyase (PAL) and cinaamate 4-Hydroxylase (C4H) decreased significantly after 5 d, while 4-coumarate-CoA ligase (4CL), peroxidase (POD), pectin and flavonoids reached the maximum value in 4-5 d. Considering the nutritional value, health function and food quality of okra, the best picking time for okra fruit was 4-5 d after flowering.

Key words: Sichuan-okra, picking time, lignin

CLC Number:

S649

XIN Songlin, XIANG Zepan, KANG Xiaoqin, XIAO Chuan, QIN Wen. Effect of picking time on lignin metabolism and activities of related enzymes of Sichuan-okra fruit[J]. , 2018, 30(9): 1519-1525.

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Effect of picking time on lignin metabolism and activities of related enzymes of Sichuan-okra fruit

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