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Liu X, Yu X, He A, Xia J, He J, Deng Y, Xu N, Qiu Z, Wang X, Zhao P. One-pot fermentation for erythritol production from distillers grains by the co-cultivation of Yarrowia lipolytica and Trichoderma reesei. Bioresour Technol 2022; 351:127053. [PMID: 35337991 DOI: 10.1016/j.biortech.2022.127053] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 03/19/2022] [Accepted: 03/19/2022] [Indexed: 06/14/2023]
Abstract
A co-fermentation process involving Yarrowia lipolytica and Trichoderma reesei was studied, using distillers grains (DGS) as feedstocks for erythritol production. DGS can be effectively hydrolyzed by cellulase in the single-strain culture of T. reesei. One-pot solid state fermentation for erythritol production was then established by co-cultivating Y. lipolytica M53-S with the 12 h delay inoculated T. reesei Rut C-30, in which efficient saccharification of DGS and improved production of erythritol were simultaneously achieved. The 10:1 inoculation proportion of Y. lipolytica and T. reesei contributed to the maximum erythritol production of 267.1 mg/gds under the optimal conditions including initial moisture of 55%, pH of 5.0, NaCl addition of 0.02 g/gds and DGS mass of 200 g in 144 h co-cultivation. Being compared with the attempts to produce erythritol from other raw materials, the one-pot SSF with DGS is proposed to be a potential strategy for efficient and economical erythritol production.
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Affiliation(s)
- Xiaoyan Liu
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, PR China.
| | - Xinjun Yu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, PR China
| | - Aiyong He
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, PR China
| | - Jun Xia
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, PR China
| | - Jianlong He
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, PR China
| | - Yuanfang Deng
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, PR China
| | - Ning Xu
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, PR China
| | - Zhongyang Qiu
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, PR China
| | - Xiaoyu Wang
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, PR China
| | - Pusu Zhao
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, PR China
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Liu X, Wang Z, Yan Y, Yu X, Zhao P, Wang X, Hu L, Xu J, Xu J. Novel strategy of incorporating biochar in solid-state fermentation for enhancing erythritol production by forming "microzones". Bioresour Technol 2020; 306:123141. [PMID: 32171177 DOI: 10.1016/j.biortech.2020.123141] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/20/2020] [Accepted: 02/21/2020] [Indexed: 05/12/2023]
Abstract
Biochar is increasingly considered in addressing bioprocess issues due to its strong adsorbability and excellent compatibility to microbes. Here, biochar was first applied in aerobic solid-state fermentation (SSF) for erythritol production. Biochars derived from different agricultural wastes under various pyrolysis temperatures were evaluated, and wheat straw pyrolyzed at 300 °C (WSc) performed the best in enhancing fermentative erythritol production, with a dosage of 4% (w/w). In this procedure, cell-biochar-substrate "microzones" were formed, which was conductive to cell growth and attachment, and hence contributed enhanced enzyme activities, oil consumption, and erythritol production. The resultant erythritol productions of batch and fed-batch fermentations were 207.3 and 222.5 mg/gds, respectively. In repeated-batch fermentation, high cell viability and robust erythritol synthesis were maintained throughout seven cycles. This study demonstrates that SSF can be remarkably facilitated by biochar addition, suggesting a new perspective of biochar application in microbiological processes.
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Affiliation(s)
- Xiaoyan Liu
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, China; Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, China
| | - Zhipeng Wang
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, China
| | - Yubo Yan
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, China
| | - Xinjun Yu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Pusu Zhao
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, China
| | - Xiaoyu Wang
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, China
| | - Lei Hu
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, China
| | - Jiaxing Xu
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, China
| | - Jiming Xu
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, China; Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, China.
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Liu X, Yan Y, Zhao P, Song J, Yu X, Wang Z, Xia J, Wang X. Oil crop wastes as substrate candidates for enhancing erythritol production by modified Yarrowia lipolytica via one-step solid state fermentation. Bioresour Technol 2019; 294:122194. [PMID: 31585340 DOI: 10.1016/j.biortech.2019.122194] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 09/21/2019] [Accepted: 09/23/2019] [Indexed: 06/10/2023]
Abstract
Oil crop wastes are attractive feedstocks in microbial processes due to their low cost. However, the product yields can be limited by their undesirable nitrogen surplus. Present study proposed a one-step solid state fermentation (SSF) method for producing erythritol from unrefined oil crop wastes using a modified strain Y. lipolytica M53-S. Enhanced erythritol production (185.4 mg/gds) was obtained from peanut press cake mixed with 40% sesame meal and 10% waste cooking oil. The process was performed at pH 4.0 in 5 L flasks, with initial moisture content, NaCl addition, and inoculum size of 70%, 0.02 g/gds, and 7.5 × 104 cells/gds, respectively. This procedure showed advantages in terms of lower material cost than that of submerged fermentation and shorter culture cycle (96 h) than other SSF processes. In repeated-batch fermentation, erythritol was continuously produced for seven cycles. This study presents a feasible approach in developing an efficient erythritol cultivation from nitrogen-rich wastes.
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Affiliation(s)
- Xiaoyan Liu
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, China; Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, China.
| | - Yubo Yan
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, China
| | - Pusu Zhao
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, China
| | - Jie Song
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, China
| | - Xinjun Yu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Zhipeng Wang
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Jun Xia
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, China
| | - Xiaoyu Wang
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Huaiyin Normal University, Huaian, China
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