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Biotransformation of steroidal saponins in sisal (Agave sisalana Perrine) to tigogenin by a newly isolated strain from a karst area of Guilin, China

文献类型： 外文期刊

作者： Wang, Yanchao 1 ; Li, Xia 1 ; Sun, Hao 1 ; Yi, Kexian 3 ; Zheng, Jinlong 3 ; Zhang, Jie 4 ; Hao, Zaibin 1 ;

作者机构： 1.Guilin Univ Technol, Coll Chem & Bioengn, Guilin, Peoples R China

2.Northeast Agr Univ, Coll Life Sci, Harbin, Peoples R China

3.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou, Peoples R China

4.Chinese Acad Agr Sci, State Key Lab Biol Plant Dis & Insect Pests, Inst Plant Protect, Beijing 100193, Peoples R China

关键词： sisal;steroidal saponins;biotransformation;acid hydrolysis;tigogenin

期刊名称：BIOTECHNOLOGY & BIOTECHNOLOGICAL EQUIPMENT （ 影响因子：1.632； 五年影响因子：2.029 ）

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收录情况： SCI

摘要： A rod-shaped bacterium was isolated from the soil in a karst area of Guilin, China and its biotransformation of steroidal saponins in sisal (Agave sisalana Perrine) to tigogenin was presented for the first time. A total of 22 strains for the degradation of steroidal saponins in sisal were isolated from 48 soil samples, and the isolated rod-shaped, bacterial strain ZG-21 was used for the production of tigogenin due to its highest degradation efficiency of steroidal saponins in sisal. The parameters affecting biotransformation by strain ZG-21 were optimized. Under the optimized conditions of temperature (30 degrees C), pH (6), time (5days) and substrate concentration (5mg/mL), a maximum tigogenin yield of 26.7mg/g was achieved. Compared with the conventional method of acid hydrolysis, the biotransformation method provided a clean and eco-friendly alternative for the production of tigogenin.

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[1]Steroidal saponins from dragon's blood of Dracaena cambodiana. Shen, Hai-Yan,Zuo, Wen-Jian,Wang, Hui,Zhao, You-Xing,Guo, Zhi-Kai,Luo, Ying,Li, Xiao-Na,Dai, Hao-Fu,Mei, Wen-Li,Shen, Hai-Yan. 2014

[2]Construction and Evaluation of Normalized cDNA Libraries Enriched with Full-Length Sequences for Rapid Discovery of New Genes from Sisal (Agave sisalana Perr.) Different Developmental Stages. Zhou, Wen-Zhao,Zhang, Yan-Mei,Lu, Jun-Ying,Li, Jun-Feng. 2012

[3]AFLP analysis and zebra disease resistance identification of 40 sisal genotypes in China. Gao, Jianming,Liu, Qiaolian,Chen, Helong,Zhang, Shiqing,Jiang, Chenji,Dai, Zhenzhen,Yi, Kexian,Luoping,Guo, Chaoming,Zheng, Jinlong,Yi, Kexian,Li, Jinzhi.

[4]Biotransformation of soybean isoflavones by a marine Streptomyces sp 060524 and cytotoxicity of the products. Hu, S. -C.,Song, Y. -C.,Liu, J. -Y.,Tan, R. -X.,Hu, S. -C.,Hong, K.,Hu, S. -C..

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