Kinetic resolution of sec-alcohols catalysed by Candida antarctica lipase B displaying Pichia pastoris whole-cell biocatalyst

[Display omitted] •Pp-CALB showed great activity and enantioselectivity to sec-alcohols.•The reuse experiments showed that Pp-CALB had a good operating stability.•Pp-CALB was a convincing biocatalyst using in solvent-free system.•Pp-CALB has similar enantioselective characteristics with Novozyme 435...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Enzyme and microbial technology 2018-03, Vol.110, p.8-13
Hauptverfasser: Zhang, Kun, Pan, Zhiyou, Diao, Zhoujian, Liang, Shuli, Han, Shuangyan, Zheng, Suiping, Lin, Ying
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:[Display omitted] •Pp-CALB showed great activity and enantioselectivity to sec-alcohols.•The reuse experiments showed that Pp-CALB had a good operating stability.•Pp-CALB was a convincing biocatalyst using in solvent-free system.•Pp-CALB has similar enantioselective characteristics with Novozyme 435. Kinetic resolution of sec-alcohols is a green process with biocatalyst. Candida antarctica lipase B (CALB) displayed on Pichia pastoris cell-surface (Pp-CALB) was characterized in kinetic resolution of sec-alcohols with different structures. The reaction parameters including acyl donors, molar ratio of substrates, solvents and temperatures were examined with 2-octanol as model substrate. 47.4% molar conversion of 2-octanol and 99.7% eep were obtained after a 5h reaction with Pp-CALB, and 90% of its original activity still remained after being reused for 10 cycles. Pp-CALB was then used to several sec-alcohols and it showed great enzymatic activity and enantioselectivity to all tested sec-alcohols, more than 93.1% of eep. The enantioselective characteristics of Pp-CALB catalysed sec-alcohols with different structures were compared with Novozyme 435 which was almost the same. Solvent free system as one way of green chemistry was applied to Pp-CALB and Pp-CALB showed great catalytic activity and enantioselectivity. Pp-CALB was potential biocatalyst of high enzymatic activity and enantioselectivity using in resolution of sec-alcohols.
ISSN:0141-0229
1879-0909
DOI:10.1016/j.enzmictec.2017.11.005