Efficient Biocatalytic Preparation of Rebaudioside KA: Highly Selective Glycosylation Coupled with UDPG Regeneration
Efficient Biocatalytic Preparation of Rebaudioside KA: Highly Selective Glycosylation Coupled with UDPG Regeneration
复制标题
莱鲍迪甙 KA 的高效生物催化制备:高选择性糖基化结合 UDPG 再生
DOI:
10.1038/s41598-020-63379-9
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发表时间:
2020-04
影响因子:
4.6
通讯作者:
Wu Xuri
中科院分区:
文献类型:
--
作者:
Zhang Yunyun;Xu Shaohua;Jin Yue;Dai Yan;Chen Yijun;Wu Xuri
Rebaudioside KA is a diterpene natural sweetener isolated in a trace amount from the leaves ofStevia rebaudiana. Selective glycosylation of rubusoside, a natural product abundantly presented in various plants, is a feasible approach for the biosynthesis of rebaudioside KA. In this study, bacterial glycosyltransferase OleD was identified to selectively transfer glucose from UDPG to 2′-hydroxyl group with aβ-1,2 linkage at 19-COO-β-D-glucosyl moiety of rubusoside for the biosynthesis of rebaudioside KA. To eliminate the use of UDPG and improve the productivity, a UDPG regeneration system was constructed as an engineeredEscherichia colistrain to couple with the glycosyltransferase. Finally, rubusoside at 22.5 g/L (35.0 mM) was completely converted to rebaudioside KA by the whole cells without exogenous addition of UDPG. This study provides an efficient and scalable method for highly selective biosynthesis of rebaudioside KA.
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影响因子:
4.4
作者:
N. H. Thuan;Je Won Park;J. Sohng
通讯作者:
N. H. Thuan;Je Won Park;J. Sohng
影响因子:
2.8
作者:
Jin-A Ko;Y. Ryu;Ji-Young Park;Cha Young Kim;Joong-Su Kim;S. Nam;W. Lee;Young-Min Kim
通讯作者:
Jin-A Ko;Y. Ryu;Ji-Young Park;Cha Young Kim;Joong-Su Kim;S. Nam;W. Lee;Young-Min Kim
DOI:
10.1016/b978-0-12-547150-3.50015-3
发表时间:
1989
期刊:
--
影响因子:
--
作者:
M. Ashburner
通讯作者:
M. Ashburner
影响因子:
4.3
作者:
H. Sambrook
通讯作者:
H. Sambrook
DOI:
10.1271/bbb1961.53.2923
发表时间:
1989-11
期刊:
Agricultural and biological chemistry
影响因子:
--
作者:
S. Kitahata;H. Ishikawa;T. Miyata;O. Tanaka
通讯作者:
S. Kitahata;H. Ishikawa;T. Miyata;O. Tanaka