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Postharvest Quality and Physiological Behavior of Sweet Potato (Ipomoea batatas Lam.) Leaf Stalks Under Three Temperatures

PENG Yan XU Yong-quan DUAN Dao-fu MAO Lin-chun

中国农业科学（英文版）2009，Vol.8Issue(2)：244-248,5.
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中国农业科学（英文版）2009，Vol.8Issue(2)：244-248,5.DOI:10.1016/S1671-2927(08)60206-0

Postharvest Quality and Physiological Behavior of Sweet Potato (Ipomoea batatas Lam.) Leaf Stalks Under Three Temperatures

Postharvest Quality and Physiological Behavior of Sweet Potato (Ipomoea batatas Lam.) Leaf Stalks Under Three Temperatures

PENG Yan 1XU Yong-quan 2DUAN Dao-fu 3MAO Lin-chun1

作者信息

  • 1. Department of Food Science and Nutrition, College of Biosystem Engineering and Food Science, Zhejiang University, Hangzhou 310029, P.R. China
  • 2. Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, PR.China
  • 3. Maize Research Institute, Zhejiang Academy of Agricultural Sciences, Dongyang 322100, P.R.China
  • 折叠

摘要

Abstract

Sweet potato (lpomoea batatas Lam.) leaf stalks were cut into 20 cm length, and stored at 20, 6, and 2℃. The respiration rate, ethylene production, ascorbic acid, free amino acid, total chlorophyll content, freshness, and shelf life were determined during storage to investigate the effect of storage temperatures on the quality and physiological responses in sweet potato leaf stalks. Wound responses were observed as high respiration rate and ethylene production immediately after cutting. Sweet potato leaf stalks were found to be sensitive to chilling injury manifested as browning and water-soaking on the surface at 2℃. In contrast, sweet potato leaf stalks were susceptible to senescence, exhibited by etiolating and yellowing, at 20℃. Loss in weight and chlorophyll was minimized under low temperatures. High temperatures also caused the accumulation of amino acids with a significant loss of ascorbic acid and chlorophyll. Sweet potato leaf stalks had a storage life of 16 days at 6℃, 8 days at 2℃, and 6 days at 20℃, respectively.

关键词

sweet potato/leaf stalks/storage/quality

Key words

sweet potato/leaf stalks/storage/quality

分类

农业科学

引用本文复制引用

PENG Yan,XU Yong-quan,DUAN Dao-fu,MAO Lin-chun..Postharvest Quality and Physiological Behavior of Sweet Potato (Ipomoea batatas Lam.) Leaf Stalks Under Three Temperatures[J].中国农业科学（英文版）,2009,8(2):244-248,5.

基金项目

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中国农业科学（英文版）

2095-3119

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