教師資料查詢 | 類別: 期刊論文 | 教師: 王三郎 WANG SAN-LANG (瀏覽個人網頁)

標題:Purification and Characterization of a Chitosanase and a Protease by Conversion of Shrimp Shell Wastes Fermented by Serratia Marcescens Subsp. Sakuensis TKU019
學年99
學期1
出版(發表)日期2010/08/01
作品名稱Purification and Characterization of a Chitosanase and a Protease by Conversion of Shrimp Shell Wastes Fermented by Serratia Marcescens Subsp. Sakuensis TKU019
作品名稱(其他語言)
著者Liang, Tzu-Wen; Kuo, Yi-Hsuan; Wu, Pei-Chen; Wang, Chuan-Lu; Dzung, Nguyen Anh; Wang, San-Lang
單位淡江大學化學學系
出版者臺北市中國化學會
著錄名稱、卷期、頁數Journal of the Chinese Chemical Society=中國化學會會誌 57(4)pt.B, pp.857-863
摘要A chitosanase and a protease were purified from the culture supernatant of Serratia marcescens subsp. sakuensis TKU019 with shrimp shell as the sole carbon/nitrogen source. The culture condition suitable for production of chitosanase was found to be shaken at 37˚C for 3 days in 100 mL of medium containing 0.5% shrimp shell powder, 0.1% K2HPO4 and 0.05% MgSO4‧7H2O at pH 7. The TKU019 chitosanase was suppressed by the simultaneously existing protease, which also showed the maximum activity at the third day of incubation. The molecular masses of the chitosanase and protease determined by SDS-PAGE were approximately 36 kDa and 58 kDa, respectively. Cu2+, Mn2+ and Zn2+ inhibited the chitosanase activity, and all of
tested divalent metals inhibited in the protease activity. The optimum pH, optimum temperature, pH stability, and thermal stability of the chitosanase was pH 7, 60˚C, pH 4–7, and < 60˚C, respectively. The optimum pH, optimum temperature, pH stability, and thermal stability of the protease was pH 10, 50˚C, pH 5-10, and < 50˚C, respectively. Tween 40 (2%, v/v) had stimulatory effect on TKU019 protease activity.
關鍵字
語言英文
ISSN0009-4536; 2192-6549
期刊性質國內
收錄於SCI;
產學合作
通訊作者Wang, San-Lang
審稿制度
國別中華民國
公開徵稿
出版型式,紙本
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