Journal Article Decarboxylation of Oxalic Acid during Ripening of Banana Fruit (Musa sapientum L.) Get access Keishi Shimokawa, Keishi Shimokawa Faculty of Agriculture, Miyazaki Univ., Miyazaki, Japan Search for other works by this author on: Oxford Academic Google Scholar Yoshinori Ueda, Yoshinori Ueda Laboratory of Processing and Physiology of Horticultural Products, University of Osaka Pref., Osaka Search for other works by this author on: Oxford Academic Google Scholar Zenzaburo Kasai Zenzaburo Kasai The Research Institute for Food Science, Kyoto University, Kyoto Search for other works by this author on: Oxford Academic Google Scholar Agricultural and Biological Chemistry, Volume 36, Issue 11, 1 November 1972, Pages 2021–2024, https://doi.org/10.1080/00021369.1972.10860513 Published: 01 November 1972 Article history Received: 03 April 1972 Published: 01 November 1972
Two enzymatic metabolites from chlorophyll a were detected in crude enzyme extracts preparated from ethylene-treated fruits of Citrus unshiu. They were identified as pheophorbide a and pyropheophorbide a using high performance thin layer and liquid chromatographic techniques and fluoresence spectroscopy.Sodium ascorbate enhanced conversion of chlorophyll a to pheophorbide pigments, whereas p-chloromercuribenzoate strongly inhibited the formation of pyropheophorbide a. These results suggest that the crude enzyme extracts contain the two enzymes, 'Mg-de-chelatase' and 'Decarbomethoxylase'
Journal Article A Possible Incorporation of Ethylene into RNA in Japanese Morning Glory Seedlings Get access Keishi Shimokawa, Keishi Shimokawa The Research Institute for Food Science, Kyoto University, Kyoto Search for other works by this author on: Oxford Academic Google Scholar Zenzaburo Kasai Zenzaburo Kasai The Research Institute for Food Science, Kyoto University, Kyoto Search for other works by this author on: Oxford Academic Google Scholar Agricultural and Biological Chemistry, Volume 32, Issue 5, 1 May 1968, Pages 680–682, https://doi.org/10.1080/00021369.1968.10859119 Published: 01 May 1968 Article history Received: 05 March 1968 Published: 01 May 1968
