PMID- 35007923 OWN - NLM STAT- MEDLINE DCOM- 20220215 LR - 20220215 IS - 1879-0909 (Electronic) IS - 0141-0229 (Linking) VI - 155 DP - 2022 Apr TI - Biocatalysis of heterogenously-expressed d-lactonohydrolases and its efficient preparation of desirable d-pantoic acid. PG - 109981 LID - S0141-0229(21)00239-8 [pii] LID - 10.1016/j.enzmictec.2021.109981 [doi] AB - d-Pantoic acid (D-PA) is an essential intermediate for the production of d-pantolactone. Here, three d-lactonohydrolases (D-Lacs), namely, Fm-Lac from Fusarium moniliforme SW-902, Fp-Lac from Fusarium proliferatum Nirenberg ECU2002, and Fo-Lac from Fusarium oxysporum AKU3702 were heterogeneously expressed in Pichia pastoris. The constructed recombinant strains produced D-Lacs of 1263 U/mL, 1025 U/mL, and 948 U/mL in a 3-L fermenter, respectively. Simultaneously, these three D-Lacs were used to resolve racemic pantolactone (DL-PL), the hydrolysis rate by Fo-Lac over 40% and the enantiomeric excesses was 99% after 4 h reaction, which outperformed Fm-Lac and Fp-Lac. Under the 800 mL scale reaction, the hydrolysis rate of DL-PL reached 39.2% with a D-PA concentration of 144.6 g/L and space-time yield of 36.2 g/L/h correspondingly. This is the highest catalytic efficiency reported so far, which shows that D-Lac heterologously expressed by P. pastoris has excellent industrial application prospects. CI - Copyright (c) 2022 Elsevier Inc. All rights reserved. FAU - Sun, Ruobin AU - Sun R AD - The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China. FAU - Zheng, Pu AU - Zheng P AD - The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China. Electronic address: zhengpu@jiangan.edu.cn. FAU - Wu, Dan AU - Wu D AD - The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China. FAU - Chen, Pengcheng AU - Chen P AD - The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China. FAU - Bai, Yanbing AU - Bai Y AD - Hangzhou Xinfu Technology Co., Ltd. Hangzhou 311301, China. FAU - Wang, Jun AU - Wang J AD - Hangzhou Xinfu Technology Co., Ltd. Hangzhou 311301, China. LA - eng PT - Journal Article DEP - 20220105 PL - United States TA - Enzyme Microb Technol JT - Enzyme and microbial technology JID - 8003761 RN - 0 (Hydroxybutyrates) RN - 0 (Recombinant Proteins) RN - 0J1TL6G6J9 (pantoic acid) SB - IM MH - Biocatalysis MH - Hydrolysis MH - Hydroxybutyrates MH - *Pichia/genetics/metabolism MH - Recombinant Proteins/genetics/metabolism OTO - NOTNLM OT - D-Lactonohydrolase OT - D-Pantoic acid OT - Enzymatic resolution OT - Heterologous expression OT - Pichia pastoris EDAT- 2022/01/11 06:00 MHDA- 2022/02/16 06:00 CRDT- 2022/01/10 20:29 PHST- 2021/10/13 00:00 [received] PHST- 2021/12/22 00:00 [revised] PHST- 2021/12/28 00:00 [accepted] PHST- 2022/01/11 06:00 [pubmed] PHST- 2022/02/16 06:00 [medline] PHST- 2022/01/10 20:29 [entrez] AID - S0141-0229(21)00239-8 [pii] AID - 10.1016/j.enzmictec.2021.109981 [doi] PST - ppublish SO - Enzyme Microb Technol. 2022 Apr;155:109981. doi: 10.1016/j.enzmictec.2021.109981. Epub 2022 Jan 5.