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Effects of sodium sulfite treatment on cell wall material and enzyme activity related to lignification in postharvest bamboo shoots

Luo Zisheng, Xi Yufang

Department of Food Science and Technology,Zhejiang University.Hangzhou 310029,Zhejiang

Abstract

Postharvest bamboo shoots were stored at (4+-1)℃ with 1% sodium sulfite in sealed polyethylene bag. The effect of sodium sulfite treatment on cell wall material and cell wall enzyme activity of postharvest bamboo shoots were investigated. The activity of polygalacturonase and the soluble pectin content of sodium sulfite-treated bamboo shoots were significantly higher than the control, while the firmness, the lignin content, protopectin content and the activity of phenylalanine ammonia lyase were significantly lower than those of control. Effect of sodium sulfite treatment on the activities of cellulase and pectinmethylesterase and the cellulose content was not significant. Results showed that sodium sulfite treatment delayed lignification of bamboo shoots.

Key words: Bamboo shoot;Sodium sulfite treatment;Lignification;Cell wall material

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Citing This Article：

Luo Zisheng, Xi Yufang. Effects of sodium sulfite treatment on cell wall material and enzyme activity related to lignification in postharvest bamboo shoots. Acta Physiol Sin 2001; 53 (6): (in Chinese with English abstract).