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Bao Z, Zhu Y, Zhang K, Feng Y, Chen X, Lei M, Yu L. High-value utilization of the waste hydrolysate of Dioscorea zingiberensis for docosahexaenoic acid production in Schizochytrium sp. BIORESOURCE TECHNOLOGY 2021; 336:125305. [PMID: 34044242 DOI: 10.1016/j.biortech.2021.125305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/07/2021] [Accepted: 05/14/2021] [Indexed: 06/12/2023]
Abstract
The starch saccharification liquid of Dioscorea zingiberensis tubers (SSLD) is a glucose-rich agro-industrial waste. Herein, SSLD was used as a novel potential carbon source for the biosynthesis of docosahexaenoic acid (DHA) in Schizochytrium sp. to achieve waste recycling and high-value utilization. Component analysis showed that SSLD contains abundant nutrients, such as glucose, amino acids, phenolics and flavonoids. When the total sugar concentration in SSLD was optimized to 90 g/L, the biomass and DHA yield reached 44.85 and 6.60 g/L, respectively, which were 32.1% and 36.92% higher than that at pure glucose culture condition. Fermentation characteristics and gene expression analysis showed that SSLD could remarkably improve cell antioxidant capacity, which is beneficial to scavenge intracellular reactive oxygen species and increase the gene expression of antioxidant enzymes in Schizochytrium sp. Hence, SSLD is an effective and economic carbon source for DHA production in Schizochytrium sp.
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Affiliation(s)
- Zhendong Bao
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan 430074, China; Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan 430074, China
| | - Yuanmin Zhu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan 430074, China; Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan 430074, China
| | - Kai Zhang
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan 430074, China; Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan 430074, China
| | - Yumei Feng
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan 430074, China; Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan 430074, China
| | - Xuemin Chen
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan 430074, China; Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan 430074, China
| | - Mengjie Lei
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan 430074, China; Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan 430074, China
| | - Longjiang Yu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan 430074, China; Hubei Engineering Research Center for both Edible and Medicinal Resources, Wuhan 430074, China.
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Fu L, Wang Q, Zhang M, Zheng Y, Wu M, Lan Z, Pu J, Zhang H, Chen F, Su W, Yu J, Lin CT. Electrochemical Sex Determination of Dioecious Plants Using Polydopamine-Functionalized Graphene Sheets. Front Chem 2020; 8:92. [PMID: 32211371 PMCID: PMC7068219 DOI: 10.3389/fchem.2020.00092] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 01/30/2020] [Indexed: 01/18/2023] Open
Abstract
The rapid identification of sex has potential uses involving dioecious commercial plants. In this work, we first propose a rapid electrochemical analysis method for plant sex determination using the signal difference generated by the electrochemically active substances in plant tissue. Polydopamine-functionalized graphene was wrapped around plant tissue. The introduction of polydopamine-functionalized graphene could solve the problem of the instability of plant tissue immobilization and enhance the electrochemical signals from plant tissue. Taxus × media, Dioscorea zingiberensis, and Dioscorea bulbifera were deliberately selected as dioecious plant models due to their pharmaceutical applications. The sex of the plant was not obvious after simply comparing the electrochemical voltammograms. Scatter patterns and 3D surface patterns were generated based on the voltammograms recorded after different solvent extractions. Sex determination was successfully achieved by pattern recognition.
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Affiliation(s)
- Li Fu
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Qiao Wang
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Mingjun Zhang
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Yuhong Zheng
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China.,Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing Botanical Garden, Memorial Sun Yat-Sen, Nanjing, China
| | - Mengyao Wu
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Ziyi Lan
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Jiansong Pu
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Huaiwei Zhang
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Fei Chen
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Weitao Su
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Jinhong Yu
- Key Laboratory of Marine New Materials and Related Technology, Zhejiang Key Laboratory of Marine Materials and Protection Technology, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
| | - Cheng-Te Lin
- Key Laboratory of Marine New Materials and Related Technology, Zhejiang Key Laboratory of Marine Materials and Protection Technology, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
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