One-Pot Encapsulation of a Robust α-L-Rhamnosidase Mutant in Cu-MOF: A Recyclable Designed Biocatalyst for High-Yield Conversion of Icariin to Icariside I
- 1School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
Abstract
Icariside I is a pharmacologically important prenylated flavonoid glycoside, yet its efficient biocatalytic production from icariin is hindered by the limited stability and recyclability of the enzymes involved. In this study, an α-L-rhamnosidase mutant R783A (Rha R783A) was heterologously expressed, purified, and immobilized within a Cu-based metal–organic framework (MOF) via a one-pot co-precipitation strategy. The resulting Rha R783A@MOF biocomposite exhibited enhanced stability compared to the free enzyme, retaining >90% residual activity after incubation at 60 °C for 2 h and 86.4% after 30 days of storage. It also demonstrated broad pH adaptability. In the biotransformation of icariin, Rha R783A@MOF achieved a 99.8% conversion rate and a 97.8% yield of icariside I. Furthermore, the biocomposite maintained an 88.9% yield after eight consecutive reuse cycles under high-temperature conditions (60 °C), demonstrating excellent operational stability. This work presents a robust and sustainable strategy for icariside I production, highlighting the potential of MOF microparticles as an effective platform for the biocatalytic synthesis of high-value flavonoid compounds.
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BibTeX
@article{jia2026onepot,
title = {{One-Pot Encapsulation of a Robust α-L-Rhamnosidase Mutant in Cu-MOF: A Recyclable Designed Biocatalyst for High-Yield Conversion of Icariin to Icariside I}},
author = {Haoyu Jia and Tong Yan and Luran Wang and Lingling Song},
journal = {Molecules},
year = {2026},
month = oct,
doi = {10.3390/molecules31203615},
url = {https://www.mdpi.com/1420-3049/31/20/3615},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - One-Pot Encapsulation of a Robust α-L-Rhamnosidase Mutant in Cu-MOF: A Recyclable Designed Biocatalyst for High-Yield Conversion of Icariin to Icariside I
AU - Haoyu Jia
AU - Tong Yan
AU - Luran Wang
AU - Lingling Song
PY - 2026
DA - 2026/10/10
JO - Molecules
DO - 10.3390/molecules31203615
UR - https://www.mdpi.com/1420-3049/31/20/3615
AB - Icariside I is a pharmacologically important prenylated flavonoid glycoside, yet its efficient biocatalytic production from icariin is hindered by the limited stability and recyclability of the enzymes involved. In this study, an α-L-rhamnosidase mutant R783A (Rha R783A) was heterologously expressed, purified, and immobilized within a Cu-based metal–organic framework (MOF) via a one-pot co-precipitation strategy. The resulting Rha R783A@MOF biocomposite exhibited enhanced stability compared to the free enzyme, retaining >90% residual activity after incubation at 60 °C for 2 h and 86.4% after 30 days of storage. It also demonstrated broad pH adaptability. In the biotransformation of icariin, Rha R783A@MOF achieved a 99.8% conversion rate and a 97.8% yield of icariside I. Furthermore, the biocomposite maintained an 88.9% yield after eight consecutive reuse cycles under high-temperature conditions (60 °C), demonstrating excellent operational stability. This work presents a robust and sustainable strategy for icariside I production, highlighting the potential of MOF microparticles as an effective platform for the biocatalytic synthesis of high-value flavonoid compounds.
SN - 1420-3049
ER -