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Updated: May 3, 2026

Transformation of Probiotic Yeast and Their Recovery from Gastrointestinal Immune Tissues Following Oral Gavage in Mice
Published on: February 8, 2016
Microbial transformation of resibufogenin by Curvularia lunata AS 3.4381
Xiu-Lan Xin1, Jiang-Hao Sun, Xiao-Bo Wang
1a College of Bioengineering, Beijing Polytechnic , Beijing , 100029 , China.
Abstract:
In this paper, the microbial transformation of resibufogenin by Curvularia lunata AS 3.4381 was investigated, and four transformed products were isolated and characterized as 3-epi-resibufogenin (2), 12α-hydroxy-3-epi-resibufogenin (3), 12-oxo-16β-hydroxy-3-epi-resibufogenin (4), and 12β,15-epoxy-3-epi-bufalin-14,15-ene (5). Among them, 4 and 5 are new compounds, and isomerization, hydroxylation, and oxidation reactions in microbial transformation process were observed. Additionally, the cytotoxicities of transformed products (2-5) were also investigated.
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