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Revisiting the production of L( +)-lactic acid from vine shoots: bioconversion improvements by employing thermotolerant bacteria. Appl Microbiol Biotechnol 2021; 105:9385-9402. [PMID: 34799761 DOI: 10.1007/s00253-021-11693-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/19/2021] [Accepted: 11/10/2021] [Indexed: 02/07/2023]
Abstract
Vine shoots (Vitis vinifera L.) constitute an abundant lignocellulosic source which is frequently underutilised. Alkaline and acidic pretreatments (with and without washing steps) were compared and optimised to release fermentable sugars from vine shoots. An acidic pretreatment using 1.72% H2SO4 at 134 °C for 17 min (with 10% w/w solid biomass), followed by an enzymatic hydrolysis, offered the most cost-effective results, releasing 40.21 g/L sugars. Three thermotolerant strains, namely, Bacillus coagulans DSM 2314, Geobacillus stearothermophilus DSM 2313, and G. stearothermophilus DSM 494, were assessed to produce lactic acid from vine-shoot hydrolysates under aerobic and non-sterile conditions, without the need of detoxification steps. In addition, wine lees were satisfactorily employed as nitrogen sources for the fermentation, providing similar results to yeast extract and being the only nutrient added to vine-shoot hydrolysates. Under optimal conditions, B. coagulans DSM 2314 produced 29.21 ± 0.23 g/L lactic acid in 24 h, with a sugar consumption of 98.74 ± 0.07% and a yield of 96.38 ± 0.76%, when supplemented with red wine lees. The purity of the isomer L( +) reached 97.59 ± 1.35% of the total lactic acid produced. Although G. stearothermophilus was able to transform the hexoses from vine-shoot hydrolysates into lactic acid, it proved to be inefficient for metabolising pentoses, thus obtaining lower lactic acid values (16-18 g/L).
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Ryhan Bashandy S, Hemida Abd-Alla M, Mahmoud GAE. Using fermentation waste of ethanol-producing yeast for bacterial riboflavin production and recycling of spent bacterial mass for enhancing the growth of oily plants. J Appl Microbiol 2021; 132:2020-2033. [PMID: 34265162 DOI: 10.1111/jam.15221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 03/24/2021] [Accepted: 07/12/2021] [Indexed: 11/29/2022]
Abstract
AIM This study aims to use fermentation waste of ethanol production (solid and liquid) for riboflavin and recycling of bacterial biomass as biofertilizers to enhance the growth of some oily crop plants. METHODS AND RESULTS Out of ten yeast isolates from fresh milk, Clavispora lusitaniae ASU 33 (MN583181) was able to ferment different concentrations of glucose (2.5, 5, 7.5, 10, 15, and 20 %) into ethanol with high efficiency at 10%. Among seven non-Lactobacillus bacterial isolates recovered from cheese samples, two bacterial isolates Bacillus subtlis-SR2 (MT002768) and Novosphingobium panipatense-SR3 (MT002778) were selected for their high riboflavin production. Different media (control medium, fermentation waste medium, and a mixture of the fermentation waste medium and control medium (1:1)) were used for riboflavin production. These media were inoculated by a single or mixture of B. subtlis-SR2, N. panipatense-SR3. The addition of the waste medium of ethanol production to the control medium (1:1) had a stimulatory effect on riboflavin production whether inoculated either with a single strain or mixture of B. subtlis-SR2, N. panipatense-SR3. A mixture of fermentation waste and control media inoculated with N. panipatense produced a high riboflavin yield in comparison with other media. Inoculation of Zea mays and Ocimum basilicum plants either with the bacterial biomass waste of riboflavin production (B. subtlis or N. panipatense or a mixture of B. subtlis and N. panipatense) shows a stimulatory effect on the plant growth in comparison with control (uninoculated plants). CONCLUSIONS These results demonstrate the possibility of minimizing the cost of riboflavin and biofertilizer manufacturing via interlinking ethanol and riboflavin with the biofertilizer production technology. SIGNIFICANCE AND IMPACT OF STUDY This study outlines methods of evaluating the strength of spent media by applying procedures developed in the vitamins production industries. Furthermore, bacterial biomass waste can act as an environmentally friendly alternative for agrochemicals.
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Affiliation(s)
- Shymaa Ryhan Bashandy
- Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt
| | - Mohamed Hemida Abd-Alla
- Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt
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Utilizing Gelatinized Starchy Waste from Rice Noodle Factory as Substrate for L(+)-Lactic Acid Production by Amylolytic Lactic Acid Bacterium Enterococcus faecium K-1. Appl Biochem Biotechnol 2020; 192:353-366. [PMID: 32382944 DOI: 10.1007/s12010-020-03314-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 04/22/2020] [Indexed: 10/24/2022]
Abstract
To valorize starchy waste from rice noodle factory, bioconversion of gelatinized starchy waste (GSW) to value-added product as L(+)-lactic acid, the monomer for polylactate synthesis, was investigated using amylolytic lactic acid bacterium, Enterococcus faecium K-1. Screening for appropriate nitrogen source to replace expensive organic nitrogen sources revealed that corn steep liquor (CSL) was the most suitable regarding high efficacy for L(+)-LA achievement and low-cost property. The successful applying statistic experimental design, Plackett-Burman design incorporated with central composite design (CCD), predicted the maximum L(+)-LA of 93.07 g/L from the optimized medium (OM) containing 125.7 g/L GSW and 207.3 g/L CSL supplemented with CH3COONa, MgSO4, MnSO4, K2HPO4, CaCl2, (NH4)2HC6H5O7, and Tween80. Minimizing the medium cost by removal of all inorganic salts and Tween80 from OM was not an effect on L(+)-LA yield. Fermentation using the optimized medium without minerals (OM-Mi) containing only GSW (125.7 g/L) and CSL (207.3 g/L) in a 10-L fermenter was also successful. Thinning GSW with α-amylase from Lactobacillus plantarum S21 increased L(+)-LA productivity in the early stage of 24-h fermentation. Not only showing the feasible bioconversion process for GSW utilizing as a substrate for L(+)-LA production, this research also demonstrated the efficient model for industrial starchy waste valorization.
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Xu D, Zhang Z, Liu Z, Xu Q. Using enzymatic hydrolyzate as new nitrogen source for L-tryptophan fermentation by E.coli. Bioengineered 2019; 11:1-10. [PMID: 31795804 PMCID: PMC6961590 DOI: 10.1080/21655979.2019.1700092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
This study presents new methods for hydrolyzing bacterial cell in cyclic utilization of waste bacterial cell for L-tryptophan production by fermentation. Using enzymatic hydrolysis of the pre-treated bacterial cells which were collected from an L-tryptophan fermentation broth, trypsin was selected as the optimal protease for hydrolyzing the bacterial cell. The optimum conditions for hydrolysis were determined by the orthogonal test. Hydrolyzate was then dealt with a compound protease to further increase its content of free amino acids. With the optimum conditions of pH = 8, temperature of 37°C, treatment time of 6 h, and E/S of 4%, the final content of free amino acids in the hydrolyzate was 500.61 mg/g. The hydrolyzate and the yeast extract were added to the medium at the proportion of 1:1, which served as an organic nitrogen source for L-tryptophan production by fermentation. The production of L-tryptophan was 53.87 g/L, and the highest biomass was 53.45 g/L. As an organic nitrogen source, this hydrolyzate satisfies the requirements for L-tryptophan production by fermentation.
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Affiliation(s)
- Da Xu
- National and Local United Engineering Lab of Metabolic Control Fermentation Technology, Tianjin University of Science and Technology, Tianjin, PR China.,Tianjin Engineering Lab of Efficient and Green Amino Acid Manufacture, Tianjin University of Science and Technology, Tianjin, PR China.,College of Biotechnology, Tianjin University of Science and Technology, Tianjin, PR China
| | - Zhen Zhang
- National and Local United Engineering Lab of Metabolic Control Fermentation Technology, Tianjin University of Science and Technology, Tianjin, PR China.,Tianjin Engineering Lab of Efficient and Green Amino Acid Manufacture, Tianjin University of Science and Technology, Tianjin, PR China.,College of Biotechnology, Tianjin University of Science and Technology, Tianjin, PR China
| | - Ziqiang Liu
- National and Local United Engineering Lab of Metabolic Control Fermentation Technology, Tianjin University of Science and Technology, Tianjin, PR China.,Tianjin Engineering Lab of Efficient and Green Amino Acid Manufacture, Tianjin University of Science and Technology, Tianjin, PR China.,College of Biotechnology, Tianjin University of Science and Technology, Tianjin, PR China
| | - Qingyang Xu
- National and Local United Engineering Lab of Metabolic Control Fermentation Technology, Tianjin University of Science and Technology, Tianjin, PR China.,Tianjin Engineering Lab of Efficient and Green Amino Acid Manufacture, Tianjin University of Science and Technology, Tianjin, PR China.,College of Biotechnology, Tianjin University of Science and Technology, Tianjin, PR China
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Xu Q, Bai F, Chen N, Bai G. Utilization of acid hydrolysate of recovered bacterial cell as a novel organic nitrogen source for L-tryptophan fermentation. Bioengineered 2019; 10:23-32. [PMID: 30885096 PMCID: PMC6527063 DOI: 10.1080/21655979.2019.1586053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
In this study, waste bacterial cell (WBC) was recovered and used as an alternative to yeast extract in L-tryptophan fermentation. The effects of sulfuric acid concentration and temperature on the hydrolysis of WBC were optimized and the amino acid content in the waste bacterial cell hydrolysate (WBCH) was increased. Plackett-Burman and Box-Behnken design analysis revealed the optimum composition of the WBCH-based fermentation medium to be 22.47 g/L WBCH, 2.26 g/L KH2PO4, and 1.25 mg/L vitamin H. L-tryptophan yield and productivity with WBCH as the nitrogen source were 52.3 g/L and 2.16 g/L/h, respectively, which were 13% and 18% higher than those obtained with the yeast extract as the nitrogen source. In addition, WBCH did not affect the growth of Escherichia coli during L-tryptophan fermentation. Cost accounting showed that WBCH could be used as a novel and cheap organic nitrogen source for industrial L-tryptophan production.
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Affiliation(s)
- Qingyang Xu
- a College of Biotechnology , Tianjin University of Science and Technology , Tianjin , China.,b State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin , China
| | - Fang Bai
- b State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin , China
| | - Ning Chen
- a College of Biotechnology , Tianjin University of Science and Technology , Tianjin , China
| | - Gang Bai
- b State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin , China
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SUN X, LIU L, MA T, YU J, HUANG W, FANG Y, ZHAN J. Effect of high Cu2+ stress on fermentation performance and copper biosorption of Saccharomyces cerevisiae during wine fermentation. FOOD SCIENCE AND TECHNOLOGY 2019. [DOI: 10.1590/1678-457x.24217] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Xiangyu SUN
- China Agricultural University, China; Northwest Agricultural and Forestry University, China; Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, China
| | | | - Tingting MA
- China Agricultural University, China; Northwest Agricultural and Forestry University, China
| | - Jing YU
- China Agricultural University, China
| | | | - Yulin FANG
- China Agricultural University, China; Northwest Agricultural and Forestry University, China
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Zhang M, Xie L, Yin Z, Khanal SK, Zhou Q. Biorefinery approach for cassava-based industrial wastes: Current status and opportunities. BIORESOURCE TECHNOLOGY 2016; 215:50-62. [PMID: 27117291 DOI: 10.1016/j.biortech.2016.04.026] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 04/05/2016] [Accepted: 04/06/2016] [Indexed: 06/05/2023]
Abstract
Cassava, an important food crop, has been extensively employed as raw materials for various agri-industries to produce starch, bioethanol and other biobased products/chemicals. These cassava-based industries also generate large quantities of wastes/residues, rich in organic matter and suspended solids, and pose significant environmental issues. Their complex biochemical composition with high organic content endows them with a great potential for bioconversion into value-added products via biorefinery thereby providing economic and environmental sustainability to cassava industries. This state-of-the-art review covers the source, composition and characteristics of cassava industrial wastes and residues, and their bioconversion into value-added products, mainly biofuels (ethanol and butanol), biogas, biosurfactant, organic acids and other valuable biochemicals among others. This paper also outlines future perspectives with respect to developing more effective and efficient bioconversion processes for converting the cassava wastes and residues into high-value products.
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Affiliation(s)
- Ming Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze River Water Environment, Institute of Biofilm Technology, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China
| | - Li Xie
- State Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze River Water Environment, Institute of Biofilm Technology, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China.
| | - Zhixuan Yin
- State Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze River Water Environment, Institute of Biofilm Technology, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China
| | - Samir Kumar Khanal
- Department of Molecular Biosciences and Bioengineering (MBBE), University of Hawai'i at Mānoa, Agricultural Sciences Building 218, 1955 East-West Road, Honolulu, HI 96822, United States
| | - Qi Zhou
- State Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze River Water Environment, Institute of Biofilm Technology, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China
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Roto SM, Rubinelli PM, Ricke SC. An Introduction to the Avian Gut Microbiota and the Effects of Yeast-Based Prebiotic-Type Compounds as Potential Feed Additives. Front Vet Sci 2015; 2:28. [PMID: 26664957 PMCID: PMC4672232 DOI: 10.3389/fvets.2015.00028] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 08/20/2015] [Indexed: 01/30/2023] Open
Abstract
The poultry industry has been searching for a replacement for antibiotic growth promoters in poultry feed as public concerns over the use of antibiotics and the appearance of antibiotic resistance has become more intense. An ideal replacement would be feed amendments that could eliminate pathogens and disease while retaining economic value via improvements on body weight and feed conversion ratios. Establishing a healthy gut microbiota can have a positive impact on growth and development of both body weight and the immune system of poultry while reducing pathogen invasion and disease. The addition of prebiotics to poultry feed represents one such recognized way to establish a healthy gut microbiota. Prebiotics are feed additives, mainly in the form of specific types of carbohydrates that are indigestible to the host while serving as substrates to select beneficial bacteria and altering the gut microbiota. Beneficial bacteria in the ceca easily ferment commonly studied prebiotics, producing short-chain fatty acids, while pathogenic bacteria and the host are unable to digest their molecular bonds. Prebiotic-like substances are less commonly studied, but show promise in their effects on the prevention of pathogen colonization, improvements on the immune system, and host growth. Inclusion of yeast and yeast derivatives as probiotic and prebiotic-like substances, respectively, in animal feed has demonstrated positive associations with growth performance and modification of gut morphology. This review will aim to link together how such prebiotics and prebiotic-like substances function to influence the native and beneficial microorganisms that result in a diverse and well-developed gut microbiota.
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Affiliation(s)
- Stephanie M. Roto
- Department of Food Science, Center for Food Safety, University of Arkansas, Fayetteville, AR, USA
| | - Peter M. Rubinelli
- Department of Food Science, Center for Food Safety, University of Arkansas, Fayetteville, AR, USA
| | - Steven C. Ricke
- Department of Food Science, Center for Food Safety, University of Arkansas, Fayetteville, AR, USA
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Djukić-Vuković AP, Mojović LV, Semenčenko VV, Radosavljević MM, Pejin JD, Kocić-Tanackov SD. Effective valorisation of distillery stillage by integrated production of lactic acid and high quality feed. Food Res Int 2015. [DOI: 10.1016/j.foodres.2014.07.048] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Xu H, Xu X, Tao Y, Yuan F, Gao Y. Optimization by response surface methodology of supercritical carbon dioxide extraction of flavour compounds from Chinese liquor vinasse. FLAVOUR FRAG J 2015. [DOI: 10.1002/ffj.3240] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Honggao Xu
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering; China Agricultural University; Beijing 100083 China
| | - Xiang Xu
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering; China Agricultural University; Beijing 100083 China
| | - Yidi Tao
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering; China Agricultural University; Beijing 100083 China
| | - Fang Yuan
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering; China Agricultural University; Beijing 100083 China
| | - Yanxiang Gao
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering; China Agricultural University; Beijing 100083 China
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Zhu W, Guo C, Luo F, Zhang C, Wang T, Wei Q. Optimization ofCalvatia giganteamycelia production from distillery wastewater. JOURNAL OF THE INSTITUTE OF BREWING 2015. [DOI: 10.1002/jib.200] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Wenyou Zhu
- Solid-state Fermentation Resource Utilization Key Laboratory of Sichuan Province, Institute of Biotechnology Industry, College of Life Science & Food Engineering; Yibin University; Yibin 644000 China
| | - Chunxiao Guo
- College of Life Science; Qufu Normal University; Qufu 273165 China
| | - Fan Luo
- College of Life Sciences and Technique; Southwest University for Nationalities; Chengdu 610041 China
| | - Chao Zhang
- Solid-state Fermentation Resource Utilization Key Laboratory of Sichuan Province, Institute of Biotechnology Industry, College of Life Science & Food Engineering; Yibin University; Yibin 644000 China
| | - Tao Wang
- Solid-state Fermentation Resource Utilization Key Laboratory of Sichuan Province, Institute of Biotechnology Industry, College of Life Science & Food Engineering; Yibin University; Yibin 644000 China
| | - Qin Wei
- Solid-state Fermentation Resource Utilization Key Laboratory of Sichuan Province, Institute of Biotechnology Industry, College of Life Science & Food Engineering; Yibin University; Yibin 644000 China
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Moon SK, Wee YJ, Choi GW. Utilization of by-products derived from bioethanol production process for cost-effective production of lactic acid. J Ind Microbiol Biotechnol 2014; 41:1525-31. [PMID: 25163666 DOI: 10.1007/s10295-014-1495-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 07/26/2014] [Indexed: 11/27/2022]
Abstract
The by-products of bioethanol production such as thin stillage (TS) and condensed distillers solubles (CDS) were used as a potential nitrogen source for economical production of lactic acid. The effect of those by-products and their concentrations on lactic acid fermentation were investigated using Lactobacillus paracasei CHB2121. Approximately, 6.7 g/L of yeast extract at a carbon source to nitrogen source ratio of 15 was required to produce 90 g/L of lactic acid in the medium containing 100 g/L of glucose. Batch fermentation of TS medium resulted in 90 g/L of lactic acid after 48 h, and the medium containing 10 % CDS resulted in 95 g/L of lactic acid after 44 h. Therefore, TS and CDS could be considered as potential alternative fermentation medium for the economical production of lactic acid. Furthermore, lactic acid fermentation was performed using only cassava and CDS for commercial production of lactic acid. The volumetric productivity of lactic acid [2.94 g/(L·h)] was 37 % higher than the productivity obtained from the medium with glucose and CDS.
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Affiliation(s)
- Se-Kwon Moon
- Changhae Advanced Institute of Technology, Changhae Ethanol Co., Ltd., Palbok-Dong 829, Dukjin-Gu, Jeonju, 561-203, Republic of Korea
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d-Lactic acid biosynthesis from biomass-derived sugars via Lactobacillus delbrueckii fermentation. Bioprocess Biosyst Eng 2013; 36:1897-904. [DOI: 10.1007/s00449-013-0965-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 05/01/2013] [Indexed: 11/25/2022]
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