A new l-arabinose isomerase with copper ion tolerance is suitable for creating protein-inorganic hybrid nanoflowers with enhanced enzyme activity and stability

Zheng Xu, Rui Wang, Chao Liu, Bo Chi, Jian Gao, Beining Chen, Hong Xu

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Protein-inorganic hybrid nanoflowers were prepared using Cu2+, PBS buffer, and a copper ion tolerant l-arabinose isomerase that was derived from Paenibacillus polymyxa (PPAI). The expensive rare sugar l-ribulose or d-tagatose was prepared utilizing these nanoflowers with l-arabinose or d-galactose as the substrate, respectively. The PPAI hybrid nanoflowers showed better enzyme stabilities in both thermal and acidic conditions. Meanwhile, long term batch production was successful showing high stability using these hybrid nanoflowers, which achieved a conversion rate of 61.8% from l-arabinose to l-ribulose.

Original languageEnglish
Pages (from-to)30791-30794
Number of pages4
JournalRSC Advances
Volume6
Issue number37
DOIs
StatePublished - 2016

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