Journal of Integrative Agriculture ›› 2020, Vol. 19 ›› Issue (5): 1387-1395.DOI: 10.1016/S2095-3119(20)63170-7

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  • 收稿日期:2018-09-17 出版日期:2020-04-01 发布日期:2020-03-25

Effects of UV-B treatment on controlling lignification and quality of bamboo (Phyllostachys prominens) shoots without sheaths during cold storage

ZHENG Jian1, 2, LI Sheng-e1, Maratab ALI1, HUANG Qi-hui1, ZHNEG Xiao-lin1, PANG Lin-jiang2
  

  1. 1 College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, P.R.China
    2 School of Agriculture and Food Science, Zhejiang A&F University, Hangzhou 311300, P.R.China
  • Received:2018-09-17 Online:2020-04-01 Published:2020-03-25
  • Contact: Correspondence ZHENG Xiao-lin, Tel: +86-571-28008959; Fax: +86-571-28008900, E-mail: zhengxl@zjgsu.edu.cn; PANG Lin-jiang, Mobile: +86-13666662596, E-mail: ljpang@zafu.edu.cn
  • About author:ZHENG Jian, Mobile: +86-13868026164, E-mail: zhengjian622@ 126.com;
  • Supported by:
    The authors acknowledge the financial support provided by the National Key Research and Development Program of China (2016YFD0400901), the Project of Sci-tech Special Commissioner Team of the Bamboo Industry in Deqing County, China and the Innovative Research Project of Zhejiang A&F University, China.

Abstract:

For evaluating the effects of UV-B treatment on lignification and quality of bamboo (Phyllostachys prominens) shoots during postharvest, fresh bamboo shoots without sheaths were irradiated with UV-B at a dose of 8.0 kJ m–2 and then stored at (6±1)°C along with 85–90% relative humidity (RH) for 15 d.  The results showed that UV-B treatment apparently slowed down the increase rates of flesh firmness, weight loss, and contents of cellulose and lignin.  It also decreased the activities of 4-coumarate CoA ligase (4CL), peroxidase (POD), cinnamyl alcohol dehydrogenase (CAD) and phenylalanine ammonia-lyase (PAL) and the expression of their encoding genes during cold storage.  It was suggested that these effects of UV-B treatment on decreases in these enzymatic activities and the expression of encoding genes might collectively regulate lignin synthesis and accumulation in the flesh of bamboo shoots and consequently benefit in maintaining the edible quality of bamboo shoots during cold storage.
 

Key words: bamboo shoot ,  lignification ,  quality ,  UV-B treatment ,  cold storage