1
|
Kruasuwan W, Puseenam A, Am-in S, Trakarnpaiboon S, Sornlek W, Kocharin K, Jindamorakot S, Tanapongpipat S, Bai FY, Roongsawang N. Evaluation of thermotolerant and ethanol-tolerant Saccharomyces cerevisiae as an alternative strain for bioethanol production from industrial feedstocks. 3 Biotech 2023; 13:23. [PMID: 36573155 PMCID: PMC9789288 DOI: 10.1007/s13205-022-03436-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 11/26/2022] [Indexed: 12/25/2022] Open
Abstract
Despite the fact that yeast Saccharomyces cerevisiae is by far the most commonly used in ethanol fermentation, few have been reported to be resistant to high ethanol concentrations at high temperatures. Hence, in this study, 150 S. cerevisiae strains from the Thailand Bioresource Research Center (TBRC) were screened for ethanol production based on their glucose utilization capability at high temperatures. Four strains, TBRC 12149, 12150, 12151, and 12153, exhibited the most outstanding ethanol production at high temperatures in shaking-flask culture. Among these, strain TBRC 12151 demonstrated a high ethanol tolerance of up to 12% at 40 °C. Compared to industrial and laboratory strains, TBRC 12149 displayed strong sucrose fermentation capacity whereas TBRC 12153 and 12151, respectively, showed the greatest ethanol production from molasses and cassava starch hydrolysate at high temperatures in shaking-flask conditions. In 5-L batch fermentation, similarly to both industrial strains, strain TBRC 12153 yielded an ethanol concentration of 66.5 g L-1 (58.4% theoretical yield) from molasses after 72 h at 40 °C. In contrast, strain TBRC12151 outperformed other industrial strains in cell growth and ethanol production from cassava starch hydrolysis at 40 °C with an ethanol production of 65 g L-1 (77.7% theoretical yield) after 72 h. Thus, the thermotolerant and ethanol-tolerant S. cerevisiae TBRC 12151 displayed great potential and possible uses as an alternative strain for industrial ethanol fermentation using cassava starch hydrolysate. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03436-4.
Collapse
Affiliation(s)
- Worarat Kruasuwan
- Microbial Cell Factory Research Team, Biorefinery and Bioproduct Technology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Khlong Nueng, Khlong Luang, 12120 Pathum Thani Thailand
- Present Address: Siriraj Long-Read Laboratory (Si-LoL), Division of Medical Bioinformatics, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700 Thailand
| | - Aekkachai Puseenam
- Microbial Cell Factory Research Team, Biorefinery and Bioproduct Technology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Khlong Nueng, Khlong Luang, 12120 Pathum Thani Thailand
| | - Somjit Am-in
- Microbial Diversity and Utilization Research Team, Thailand Bioresource Research Center, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Khlong Nueng, Khlong Luang, 12120 Pathum Thani Thailand
| | - Srisakul Trakarnpaiboon
- Enzyme Technology Research Team, Biorefinery and Bioproduct Technology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Khlong Nueng, Khlong Luang, 12120 Pathum Thani Thailand
| | - Warasirin Sornlek
- Enzyme Technology Research Team, Biorefinery and Bioproduct Technology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Khlong Nueng, Khlong Luang, 12120 Pathum Thani Thailand
| | - Kanokarn Kocharin
- Microbial Cell Factory Research Team, Biorefinery and Bioproduct Technology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Khlong Nueng, Khlong Luang, 12120 Pathum Thani Thailand
| | - Sasitorn Jindamorakot
- Microbial Diversity and Utilization Research Team, Thailand Bioresource Research Center, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Khlong Nueng, Khlong Luang, 12120 Pathum Thani Thailand
| | - Sutipa Tanapongpipat
- Microbial Cell Factory Research Team, Biorefinery and Bioproduct Technology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Khlong Nueng, Khlong Luang, 12120 Pathum Thani Thailand
| | - Feng-Yan Bai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101 China
| | - Niran Roongsawang
- Microbial Cell Factory Research Team, Biorefinery and Bioproduct Technology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Khlong Nueng, Khlong Luang, 12120 Pathum Thani Thailand
| |
Collapse
|
2
|
Avchar R, Lanjekar V, Dhakephalkar PK, Dagar SS, Baghela A. Compost as an untapped niche for thermotolerant yeasts capable of high-temperature ethanol production. Lett Appl Microbiol 2021; 74:109-121. [PMID: 34714552 DOI: 10.1111/lam.13593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 09/28/2021] [Accepted: 10/11/2021] [Indexed: 11/26/2022]
Abstract
Efficient bioethanol production from lignocellulosic biomass requires thermotolerant yeasts capable of utilizing multiple sugars, tolerating inhibitors and fermenting at high temperatures. In this study, 98 thermotolerant yeasts were isolated from nine compost samples. We selected 37 yeasts that belonged to 11 species; 31 grew at 45°C; 6 strains grew at 47°C, while 9 yeasts could utilize multiple sugars. Many yeast isolates showed high ethanol production in the range of 12-24 g l-1 , with fermentation efficiencies of 47-94% at 40°C using 5% glucose. Kluyveromyces marxianus CSV3.1 and CSC4.1 (47°C), Pichia kudriavzevii CSUA9.3 (45°C) produced 21, 22 and 23 g l-1 of ethanol with efficiencies of 83, 87 and 90%, respectively, using 5% glucose. Among these yeasts, K. marxianus CSC4.1 and P. kudriavzevii CSUA9.3 exhibited high tolerance against furfural, 5-HMF, acetic acid and ethanol. These two strains produced high amounts of ethanol from alkali-treated RS, with 84 and 87% efficiency via separate hydrolysis and fermentation; 76 and 74% via simultaneous saccharification and fermentation at 47 and 45°C, respectively. Therefore, this study demonstrates compost as a potential anthropogenic niche for multiple sugar-utilizing, inhibitor-tolerant ethanologenic yeasts suitable for high-temperature ethanol production via SHF of rice straw.
Collapse
Affiliation(s)
- R Avchar
- Biodiversity and Palaeobiology Group, National Fungal Culture Collection of India (NFCCI), MACS-Agharkar Research Institute, Pune, India
- Savitribai Phule Pune University, Ganeshkhind, Pune, India
| | - V Lanjekar
- Bioenergy Group, MACS-Agharkar Research Institute, Pune, India
| | | | - S S Dagar
- Bioenergy Group, MACS-Agharkar Research Institute, Pune, India
| | - A Baghela
- Biodiversity and Palaeobiology Group, National Fungal Culture Collection of India (NFCCI), MACS-Agharkar Research Institute, Pune, India
- Savitribai Phule Pune University, Ganeshkhind, Pune, India
| |
Collapse
|
3
|
Lin NX, He RZ, Xu Y, Yu XW. Augmented peroxisomal ROS buffering capacity renders oxidative and thermal stress cross-tolerance in yeast. Microb Cell Fact 2021; 20:131. [PMID: 34247591 PMCID: PMC8273976 DOI: 10.1186/s12934-021-01623-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 07/01/2021] [Indexed: 12/28/2022] Open
Abstract
Background Thermotolerant yeast has outstanding potential in industrial applications. Komagataella phaffii (Pichia pastoris) is a common cell factory for industrial production of heterologous proteins. Results Herein, we obtained a thermotolerant K. phaffii mutant G14 by mutagenesis and adaptive evolution. G14 exhibited oxidative and thermal stress cross-tolerance and high heterologous protein production efficiency. The reactive oxygen species (ROS) level and lipid peroxidation in G14 were reduced compared to the parent. Oxidative stress response (OSR) and heat shock response (HSR) are two major responses to thermal stress, but the activation of them was different in G14 and its parent. Compared with the parent, G14 acquired the better performance owing to its stronger OSR. Peroxisomes, as the main cellular site for cellular ROS generation and detoxification, had larger volume in G14 than the parent. And, the peroxisomal catalase activity and expression level in G14 was also higher than that of the parent. Excitingly, the gene knockdown of CAT encoding peroxisomal catalase by dCas9 severely reduced the oxidative and thermal stress cross-tolerance of G14. These results suggested that the augmented OSR was responsible for the oxidative and thermal stress cross-tolerance of G14. Nevertheless, OSR was not strong enough to protect the parent from thermal stress, even when HSR was initiated. Therefore, the parent cannot recover, thereby inducing the autophagy pathway and resulting in severe cell death. Conclusions Our findings indicate the importance of peroxisome and the significance of redox balance in thermotolerance of yeasts. Supplementary Information The online version contains supplementary material available at 10.1186/s12934-021-01623-1.
Collapse
Affiliation(s)
- Nai-Xin Lin
- Key Laboratory of Industrial Biotechnology, School of Biotechnology, Ministry of Education, Jiangnan University, 214122, Wuxi, People's Republic of China
| | - Rui-Zhen He
- Key Laboratory of Industrial Biotechnology, School of Biotechnology, Ministry of Education, Jiangnan University, 214122, Wuxi, People's Republic of China
| | - Yan Xu
- Key Laboratory of Industrial Biotechnology, School of Biotechnology, Ministry of Education, Jiangnan University, 214122, Wuxi, People's Republic of China
| | - Xiao-Wei Yu
- Key Laboratory of Industrial Biotechnology, School of Biotechnology, Ministry of Education, Jiangnan University, 214122, Wuxi, People's Republic of China.
| |
Collapse
|
4
|
Abstract
Bioethanol is the largest biotechnology product and the most dominant biofuel globally. Saccharomyces cerevisiae is the most favored microorganism employed for its industrial production. However, obtaining maximum yields from an ethanol fermentation remains a technical challenge, since cellular stresses detrimentally impact on the efficiency of yeast cell growth and metabolism. Ethanol fermentation stresses potentially include osmotic, chaotropic, oxidative, and heat stress, as well as shifts in pH. Well-developed stress responses and tolerance mechanisms make S. cerevisiae industrious, with bioprocessing techniques also being deployed at industrial scale for the optimization of fermentation parameters and the effective management of inhibition issues. Overlap exists between yeast responses to different forms of stress. This review outlines yeast fermentation stresses and known mechanisms conferring stress tolerance, with their further elucidation and improvement possessing the potential to improve fermentation efficiency.
Collapse
|
5
|
Favaro L, Jansen T, van Zyl WH. Exploring industrial and naturalSaccharomyces cerevisiaestrains for the bio-based economy from biomass: the case of bioethanol. Crit Rev Biotechnol 2019; 39:800-816. [DOI: 10.1080/07388551.2019.1619157] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Lorenzo Favaro
- Department of Agronomy Food Natural resources Animals and Environment (DAFNAE), University of Padova, Legnaro, Italy
| | - Trudy Jansen
- Department of Microbiology, Stellenbosch University, Stellenbosch, South Africa
| | | |
Collapse
|
6
|
Nwuche CO, Murata Y, Nweze JE, Ndubuisi IA, Ohmae H, Saito M, Ogbonna JC. Bioethanol production under multiple stress condition by a new acid and temperature tolerant Saccharomyces cerevisiae strain LC 269108 isolated from rotten fruits. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.01.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
7
|
Truncation of CYR1 promoter in industrial ethanol yeasts for improved ethanol yield in high temperature condition. Process Biochem 2018. [DOI: 10.1016/j.procbio.2017.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
8
|
The potential of the newly isolated thermotolerant Kluyveromyces marxianus for high-temperature ethanol production using sweet sorghum juice. 3 Biotech 2018; 8:126. [PMID: 29450116 DOI: 10.1007/s13205-018-1161-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 02/06/2018] [Indexed: 10/18/2022] Open
Abstract
In this work, the newly isolated thermotolerant Kluyveromyces marxianus DBKKUY-103 exhibited a high ethanol fermentation efficiency at high temperatures using sweet sorghum juice (SSJ). The highest ethanol concentrations and productivities achieved under the optimum conditions using thermotolerant K. marxianus DBKKUY-103 were 85.16 g/l and 1.42 g/l.h at 37 °C and 83.46 g/l and 1.39 g/l.h at 40 °C, respectively. The expression levels of genes during ethanol fermentation at 40 °C were evaluated and the results found that the transcriptional levels of the RAD10, RAD14, RAD33, RAD50, ATPH, ATP4, ATP16, and ATP20 genes were up-regulated compared with those at 30 °C, suggesting that the high growth and high ethanol production efficiencies of K. marxianus DBKKUY-103 during high-temperature ethanol production associated with the genes involved in DNA repair and ATP production.
Collapse
|
9
|
Srinivas B, Rani GS, Kumar BK, Chandrasekhar B, Krishna KV, Devi TA, Bhima B. Evaluating the probiotic and therapeutic potentials of Saccharomyces cerevisiae strain (OBS2) isolated from fermented nectar of toddy palm. AMB Express 2017; 7:2. [PMID: 28050843 PMCID: PMC5209330 DOI: 10.1186/s13568-016-0301-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 12/07/2016] [Indexed: 01/10/2023] Open
Abstract
The purpose of this study is to evaluate the probiotic characteristics of 15 yeast strains isolated from nectar of toddy palm. Initially, the collected samples were inoculated on yeast extract peptone dextrose agar plates and the colonies so obtained were culturally and morphologically characterized. Commercial probiotic yeast, Saccharomyces boulardii served as the control in these experiments. Of the 15 yeast strains, the isolates that were resistant to antibiotics and worked synergistically with other cultures were considered for further evaluation. Selected isolates were evaluated in vitro for tolerance to simulated gastrointestinal conditions such as temperature, pH, bile and gastric juice. Further the yeast isolates were evaluated for their pathogenicity and adherence to intestinal epithelial cells. The 2 yeast isolates with efficient probiotic properties were finally characterized by sequencing their 5.8 S rRNA and partial sequences of internal transcribed spacer 1 and 2. The sequences were BLAST searched in the National Center for Biotechnology Information, nucleic acid database for sequence similarity of organisms and phylogenetic evolutionary analysis was carried out. Based on maximum similarity of basic local alignment search tool results, organisms were characterized as Pichia kudriavzevii OBS1 (100%) and Saccharomyces cerevisiae OBS2 (96%) and sequences were finally deposited in the GenBank data library. Among these two isolates, S. cerevisiae OBS2 displayed slight/moderate antioxidant and anticancer property. Hence, strain OBS2 can be utilized and explored as a potential probiotic for therapeutic applications.
Collapse
|
10
|
Lamers D, van Biezen N, Martens D, Peters L, van de Zilver E, Jacobs-van Dreumel N, Wijffels RH, Lokman C. Selection of oleaginous yeasts for fatty acid production. BMC Biotechnol 2016; 16:45. [PMID: 27233820 PMCID: PMC4884388 DOI: 10.1186/s12896-016-0276-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 05/23/2016] [Indexed: 12/03/2022] Open
Abstract
Background Oleaginous yeast species are an alternative for the production of lipids or triacylglycerides (TAGs). These yeasts are usually non-pathogenic and able to store TAGs ranging from 20 % to 70 % of their cell mass depending on culture conditions. TAGs originating from oleaginous yeasts can be used as the so-called second generation biofuels, which are based on non-food competing “waste carbon sources”. Results In this study the selection of potentially new interesting oleaginous yeast strains is described. Important selection criteria were: a broad maximum temperature and pH range for growth (robustness of the strain), a broad spectrum of carbon sources that can be metabolized (preferably including C-5 sugars), a high total fatty acid content in combination with a low glycogen content and genetic accessibility. Conclusions Based on these selection criteria, among 24 screened species, Schwanniomyces occidentalis (Debaromyces occidentalis) CBS2864 was selected as a promising strain for the production of high amounts of lipids. Electronic supplementary material The online version of this article (doi:10.1186/s12896-016-0276-7) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Dennis Lamers
- HAN BioCentre, University of Applied Sciences, P.O. Box 6960, , 6503 GL, Nijmegen, The Netherlands. .,Bioprocess Engineering, Wageningen University and Research Centre, P.O. Box 8129, , 6700 EV, Wageningen, The Netherlands.
| | - Nick van Biezen
- HAN BioCentre, University of Applied Sciences, P.O. Box 6960, , 6503 GL, Nijmegen, The Netherlands
| | - Dirk Martens
- Bioprocess Engineering, Wageningen University and Research Centre, P.O. Box 8129, , 6700 EV, Wageningen, The Netherlands
| | - Linda Peters
- HAN BioCentre, University of Applied Sciences, P.O. Box 6960, , 6503 GL, Nijmegen, The Netherlands
| | - Eric van de Zilver
- HAN BioCentre, University of Applied Sciences, P.O. Box 6960, , 6503 GL, Nijmegen, The Netherlands
| | | | - René H Wijffels
- Bioprocess Engineering, Wageningen University and Research Centre, P.O. Box 8129, , 6700 EV, Wageningen, The Netherlands.,University of Nordland, Faculty of Biosciences and Aquaculture, N-8049, Bodø, Norway
| | - Christien Lokman
- HAN BioCentre, University of Applied Sciences, P.O. Box 6960, , 6503 GL, Nijmegen, The Netherlands
| |
Collapse
|
11
|
Ethanol Production from Sweet Sorghum Juice at High Temperatures Using a Newly Isolated Thermotolerant Yeast Saccharomyces cerevisiae DBKKU Y-53. ENERGIES 2016. [DOI: 10.3390/en9040253] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
12
|
H.X. P, S. N, N.T.C. G, M. Y, P. T, N.T.P. D. Ethanol production from molasses at high temperature by thermotolerant yeasts isolated from cocoa. ACTA ACUST UNITED AC 2016. [DOI: 10.22144/ctu.jen.2016.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
|
13
|
Mishra A, Sharma AK, Sharma S, Mathur AS, Gupta RP, Tuli DK. Lignocellulosic bioethanol production employing newly isolated inhibitor and thermotolerant Saccharomyces cerevisiae DBTIOC S24 strain in SSF and SHF. RSC Adv 2016. [DOI: 10.1039/c6ra00007j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bioethanol is a renewable alternative to fossil fuels which facilitate energy security and reduce greenhouse-gas emissions.
Collapse
Affiliation(s)
- Abhishek Mishra
- DBT-IOC Centre for Advanced Bio-Energy Research
- Indian Oil Corporation Ltd
- Faridabad-121007
- India
| | - Ajay K. Sharma
- DBT-IOC Centre for Advanced Bio-Energy Research
- Indian Oil Corporation Ltd
- Faridabad-121007
- India
| | - Sumit Sharma
- DBT-IOC Centre for Advanced Bio-Energy Research
- Indian Oil Corporation Ltd
- Faridabad-121007
- India
| | - A. S. Mathur
- DBT-IOC Centre for Advanced Bio-Energy Research
- Indian Oil Corporation Ltd
- Faridabad-121007
- India
| | - R. P. Gupta
- DBT-IOC Centre for Advanced Bio-Energy Research
- Indian Oil Corporation Ltd
- Faridabad-121007
- India
| | - D. K. Tuli
- DBT-IOC Centre for Advanced Bio-Energy Research
- Indian Oil Corporation Ltd
- Faridabad-121007
- India
| |
Collapse
|
14
|
Narra M, James JP, Balasubramanian V. Simultaneous saccharification and fermentation of delignified lignocellulosic biomass at high solid loadings by a newly isolated thermotolerant Kluyveromyces sp. for ethanol production. BIORESOURCE TECHNOLOGY 2015; 179:331-338. [PMID: 25553563 DOI: 10.1016/j.biortech.2014.11.116] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 11/27/2014] [Accepted: 11/28/2014] [Indexed: 05/09/2023]
Abstract
Simultaneous saccharification and fermentation studies were carried out using thermotolerant newly isolated Kluyveromyces sp. with three different delignified lignocellulosic biomass viz. rice straw, wheat straw and sugarcane bagasse at 5-15% solid loading and 6-12 FPU g(-1) substrate enzyme loading for different time intervals 0-72 h at 42°C. Maximum ethanol achieved from rice straw, wheat straw and sugarcane bagasse with in-house crude cellulases from Aspergillus terreus was 23.23, 18.29 and 17.91 mg mL(-1) at 60 h with 10% solid load and 9 FPU g(-1) substrate enzyme loading. Tween 80 1% (v/v) enhanced the ethanol yield by 8.39%, 9.26% and 8.14% in rice straw, wheat straw and sugarcane bagasse, respectively. External supplementation of β-glucosidase to the crude as well commercial cellulases produced maximum theoretical ethanol yield of 71.76%, 63.77%, 57.15% and 84.56%, 72.47%, 70.55% from rice straw, wheat straw and sugarcane bagasse, respectively.
Collapse
Affiliation(s)
- Madhuri Narra
- Sardar Patel Renewable Energy Research Institute, P. Box No. 2, Vallabh Vidyanagar, 388 120 Gujarat, India.
| | - Jisha P James
- Sardar Patel Renewable Energy Research Institute, P. Box No. 2, Vallabh Vidyanagar, 388 120 Gujarat, India
| | - Velmurugan Balasubramanian
- Sardar Patel Renewable Energy Research Institute, P. Box No. 2, Vallabh Vidyanagar, 388 120 Gujarat, India
| |
Collapse
|
15
|
Physiological characterization of thermotolerant yeast for cellulosic ethanol production. Appl Microbiol Biotechnol 2014; 98:3829-40. [PMID: 24535257 PMCID: PMC3973951 DOI: 10.1007/s00253-014-5580-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 01/24/2014] [Accepted: 01/28/2014] [Indexed: 11/05/2022]
Abstract
The conversion of lignocellulose into fermentable sugars is considered a promising alternative for increasing ethanol production. Higher fermentation yield has been achieved through the process of simultaneous saccharification and fermentation (SSF). In this study, a comparison was performed between the yeast species Saccharomyces cerevisiae and Kluyveromyces marxianus for their potential use in SSF process. Three strains of S. cerevisiae were evaluated: two are widely used in the Brazilian ethanol industry (CAT-1 and PE-2), and one has been isolated based on its capacity to grow and ferment at 42 °C (LBM-1). In addition, we used thermotolerant strains of K. marxianus. Two strains were obtained from biological collections, ATCC 8554 and CCT 4086, and one strain was isolated based on its fermentative capacity (UFV-3). SSF experiments revealed that S. cerevisiae industrial strains (CAT-1 and PE-2) have the potential to produce cellulosic ethanol once ethanol had presented yields similar to yields from thermotolerant strains. The industrial strains are more tolerant to ethanol and had already been adapted to industrial conditions. Moreover, the study shows that although the K. marxianus strains have fermentative capacities similar to strains of S. cerevisiae, they have low tolerance to ethanol. This characteristic is an important target for enhancing the performance of this yeast in ethanol production.
Collapse
|
16
|
High Level Ethanol from Sugar Cane Molasses by a New Thermotolerant Saccharomyces cerevisiae Strain in Industrial Scale. BIOTECHNOLOGY RESEARCH INTERNATIONAL 2013; 2013:253286. [PMID: 24363937 PMCID: PMC3864069 DOI: 10.1155/2013/253286] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 10/20/2013] [Indexed: 11/17/2022]
Abstract
A new local strain of S. cerevisiae F-514, for ethanol production during hot summer season, using Egyptian sugar cane molasses was applied in Egyptian distillery factory. The inouluum was propagated through 300 L, 3 m(3), and 12 m(3) fermenters charged with diluted sugar cane molasses containing 4%-5% sugars. The yeast was applied in fermentation vessels 65 m(3) working volume to study the varying concentrations of urea, DAP, orthophosphoric acid (OPA), and its combinations as well as magnesium sulfate and inoculum size. The fermenter was allowed to stay for a period of 20 hours to give time for maximum conversion of sugars into ethanol. S. cerevisiae F-514 at molasses sugar level of 18% (w/v), inoculum size of 20% (v/v) cell concentration of 3.0 × 10(8)/mL, and combinations of urea, diammonium phosphate (DAP), orthophosphoric acid (OPA), and magnesium sulfate at amounts of 20, 10, 5, and 10 kg/65 m(3) working volume fermenters, respectively, supported maximum ethanol production (9.8%, v/v), fermentation efficiency (FE) 88.1%, and remaining sugars (RS) 1.22%. The fermentation resulted 13.4 g dry yeast/L contained 34.6% crude protein and 8.2% ash. By selecting higher ethanol yielding yeast strain and optimizing, the fermentation parameters both yield and economics of the fermentation process can be improved.
Collapse
|
17
|
RETRACTED ARTICLE: Recent advancement in production of liquid biofuels from renewable resources: a review. RESEARCH ON CHEMICAL INTERMEDIATES 2013. [DOI: 10.1007/s11164-013-1231-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
18
|
Kwon YJ, Wang F, Li Q, Liu CZ. Effect of temperature on ethanol tolerance of thermotolerantIsshatchenkia orientalisIPE100. Eng Life Sci 2012. [DOI: 10.1002/elsc.201100205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
| | - Feng Wang
- National Key Laboratory of Biochemical Engineering; Institute of Process Engineering; Chinese Academy of Sciences; Beijing; P. R. China
| | | | - Chun-Zhao Liu
- National Key Laboratory of Biochemical Engineering; Institute of Process Engineering; Chinese Academy of Sciences; Beijing; P. R. China
| |
Collapse
|
19
|
Characterization and gene expression profiles of thermotolerant Saccharomyces cerevisiae isolates from Thai fruits. J Biosci Bioeng 2012; 114:144-9. [DOI: 10.1016/j.jbiosc.2012.03.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Revised: 03/08/2012] [Accepted: 03/29/2012] [Indexed: 11/23/2022]
|
20
|
Chakraborty S, Aggarwal V, Mukherjee D, Andras K. Biomass to biofuel: a review on production technology. ASIA-PAC J CHEM ENG 2012. [DOI: 10.1002/apj.1642] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sudip Chakraborty
- Research Institute on Membrane Technology, CNR-ITM; c/o University of Calabria; Via P. Bucci, Cubo-17/C; 87036; Rende (CS); Italy
| | - Varun Aggarwal
- Department of Chemical Engineering, Indian Institute of Technology; Kharagpur; 721 302; West Bengal; India
| | - Debolina Mukherjee
- Department of Geological Sciences; University of Calabria; Cubo-15B,Via-P. Bucci; 87036; Rende (CS); Italy
| | - Koris Andras
- Department of Food Engineering, Faculty of Food Science; Corvinus University of Budapest; Ménesi út 44; Budapest; H-1118; Hungary
| |
Collapse
|
21
|
Benjaphokee S, Hasegawa D, Yokota D, Asvarak T, Auesukaree C, Sugiyama M, Kaneko Y, Boonchird C, Harashima S. Highly efficient bioethanol production by a Saccharomyces cerevisiae strain with multiple stress tolerance to high temperature, acid and ethanol. N Biotechnol 2012; 29:379-86. [DOI: 10.1016/j.nbt.2011.07.002] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2011] [Revised: 06/20/2011] [Accepted: 07/11/2011] [Indexed: 10/17/2022]
|
22
|
Zhang Q, Fu Y, Wang Y, Han J, Lv J, Wang S. Improved ethanol production of a newly isolated thermotolerant Saccharomyces cerevisiae strain after high-energy-pulse-electron beam. J Appl Microbiol 2012; 112:280-8. [DOI: 10.1111/j.1365-2672.2011.05209.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
23
|
Ding W, Xiao Z, Tang X, Deng K, Fu S, Jiang Y, Yuan L. Evolutionary engineering of yeast for closed-circulating ethanol fermentation in PDMS membrane bioreactor. Biochem Eng J 2012. [DOI: 10.1016/j.bej.2011.09.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
|
24
|
Pessani NK, Atiyeh HK, Wilkins MR, Bellmer DD, Banat IM. Simultaneous saccharification and fermentation of Kanlow switchgrass by thermotolerant Kluyveromyces marxianus IMB3: the effect of enzyme loading, temperature and higher solid loadings. BIORESOURCE TECHNOLOGY 2011; 102:10618-10624. [PMID: 21955879 DOI: 10.1016/j.biortech.2011.09.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Revised: 08/21/2011] [Accepted: 09/05/2011] [Indexed: 05/31/2023]
Abstract
Switchgrass (Panicum virgatum) was subjected to hydrothermolysis pretreatment and then used to study the effect of enzyme loading and temperature in a simultaneous saccharification and fermentation (SSF) with the thermotolerant yeast strain Kluyveromyces marxianus IMB3 at 8% solid loading. Various loadings of Accellerase 1500 between 0.1 and 1.1 mL g(-1) glucan were tested in SSF at 45 °C (activity of enzyme was 82.2 FPU mL(-1)). The optimum enzyme loading was 0.7 mL g(-1) glucan based on the six different enzyme loadings tested. SSFs were performed at 37, 41 and 45 °C with an enzyme loading of 0.7 mL g(-1) glucan. The highest ethanol concentration of 22.5 g L(-1) was obtained after 168 h with SSF at 45 °C, which was equivalent to 86% yield. Four different batch and fed-batch strategies were evaluated using a total solid loading of 12% (dry basis). About 32 g L(-1) ethanol was produced with the four strategies, which was equivalent to 82% yield.
Collapse
Affiliation(s)
- Naveen K Pessani
- Department of Biosystems and Agricultural Engineering, Oklahoma State University, Stillwater, OK 74078, USA
| | | | | | | | | |
Collapse
|
25
|
Kwon YJ, Ma AZ, Li Q, Wang F, Zhuang GQ, Liu CZ. Effect of lignocellulosic inhibitory compounds on growth and ethanol fermentation of newly-isolated thermotolerant Issatchenkia orientalis. BIORESOURCE TECHNOLOGY 2011; 102:8099-104. [PMID: 21737262 DOI: 10.1016/j.biortech.2011.06.035] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Revised: 06/02/2011] [Accepted: 06/08/2011] [Indexed: 05/14/2023]
Abstract
A newly isolated thermotolerant ethanologenic yeast strain, Issatchenkia orientalis IPE 100, was able to produce ethanol with a theoretical yield of 85% per g of glucose at 42°C. Ethanol production was inhibited by furfural, hydroxymethylfurfural and vanillin concentrations above 5.56 gL(-1), 7.81 gL(-1), and 3.17 gL(-1), respectively, but the strain was able to produce ethanol from enzymatically hydrolyzed steam-exploded cornstalk with 93.8% of theoretical yield and 0.91 gL(-1)h(-1) of productivity at 42°C. Therefore, I. orientalis IPE 100 is a potential candidate for commercial lignocelluloses-to-ethanol production.
Collapse
Affiliation(s)
- Yong-Jin Kwon
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | | | | | | | | | | |
Collapse
|
26
|
Comparative study on two commercial strains of Saccharomyces cerevisiae for optimum ethanol production on industrial scale. J Biomed Biotechnol 2010; 2010:419586. [PMID: 20445743 PMCID: PMC2860142 DOI: 10.1155/2010/419586] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2009] [Revised: 12/23/2009] [Accepted: 01/21/2010] [Indexed: 11/18/2022] Open
Abstract
Two commercial strains of Saccharomyces cerevisiae, Saf-Instant (Baker's yeast) and Ethanol red (Mutant) were compared for ethanol production during hot summer season, using molasses diluted up to 6-7° Brix containing 4%-5% sugars. The yeasts were propagated in fermentation vessels to study the effects of yeast cell count and varying concentrations of Urea, DAP, inoculum size and Lactrol (Antibiotic). Continuous circulation of mash was maintained for 24 hours and after this fermenter was allowed to stay for a period of 16 hours to give time for maximum conversion of sugars into ethanol. Saccharomyces cerevisiae strain (Saf-instant) with cell concentration of 400 millions/mL at molasses sugar level of 13%–15% (pH 4.6 ± 0.2, Temp. 32°C ± 1), inoculum size of 25% (v/v), urea concentration, 150 ppm, DAP, 53.4 ppm and Lactrol,150 ppm supported maximum ethanol production (8.8%) with YP/S = 250 L ethanol per tone molasses (96.5% yield), and had significantly lower concentrations of byproducts. By selecting higher ethanol yielding yeast strain and optimizing the fermentation parameters both yield and economics of the fermentation process can be improved.
Collapse
|
27
|
High-temperature fermentation: how can processes for ethanol production at high temperatures become superior to the traditional process using mesophilic yeast? Appl Microbiol Biotechnol 2009; 85:861-7. [DOI: 10.1007/s00253-009-2248-5] [Citation(s) in RCA: 205] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2009] [Revised: 09/05/2009] [Accepted: 09/06/2009] [Indexed: 10/20/2022]
|
28
|
Arshad M, Khan ZM, Khalil-ur-Rehman, Shah FA, Rajoka MI. Optimization of process variables for minimization of byproduct formation during fermentation of blackstrap molasses to ethanol at industrial scale. Lett Appl Microbiol 2009; 47:410-4. [PMID: 19146530 DOI: 10.1111/j.1472-765x.2008.02446.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
AIMS To investigate the effect of molasses concentration, initial pH of molasses medium, and inoculum's size to maximize ethanol and minimize methanol, fusel alcohols, acetic acid and aldehydes in the fermentation mash in industrial fermentors. METHODS AND RESULTS Initial studies to optimize temperature, nitrogen source, phosphorous source, sulfur supplement and minerals were performed. The essential nutrients were urea (2 kg in 60 m(3)), 0.5 l each of commercial phosphoric acid and sulfuric acid (for pH control) added at the inoculum preparation stage only. Yields of ethanol, methanol, fusel alcohols, total acids and aldehydes per 100-l fermentation broth were monitored. Molasses at 29 degrees Brix (degree of dissolved sugars in water), initial pH 4.5, inoculum size 30% (v/v) and anaerobic fermentation supported maximum ethanol (7.8%) with Y(P/S) = 238 l ethanol per tonne molasses (96.5% yield) (8.2% increase in yield), and had significantly lower values of byproducts than those in control experiments. CONCLUSIONS Optimization of process variables resulted in higher ethanol yield (8.2%) and reduced yield of methanol, fusel alcohols, acids and aldehydes. SIGNIFICANCE AND IMPACT OF THE STUDY More than 5% substrate is converted into byproducts. Eliminating or reducing their formation can increase ethanol yield by Saccharomyces cerevisiae, decrease the overall cost of fermentation process and improve the quality of ethanol.
Collapse
Affiliation(s)
- M Arshad
- Alcohol Division, Shakargnaj Mills Ltd., Jhang, Punjab, Pakistan
| | | | | | | | | |
Collapse
|
29
|
Abstract
The traditional use of the yeast Saccharomyces cerevisiae in alcoholic fermentation has, over time, resulted in substantial accumulated knowledge concerning genetics, physiology, and biochemistry as well as genetic engineering and fermentation technologies. S. cerevisiae has become a platform organism for developing metabolic engineering strategies, methods, and tools. The current review discusses the relevance of several engineering strategies, such as rational and inverse metabolic engineering, evolutionary engineering, and global transcription machinery engineering, in yeast strain improvement. It also summarizes existing tools for fine-tuning and regulating enzyme activities and thus metabolic pathways. Recent examples of yeast metabolic engineering for food, beverage, and industrial biotechnology (bioethanol and bulk and fine chemicals) follow. S. cerevisiae currently enjoys increasing popularity as a production organism in industrial ("white") biotechnology due to its inherent tolerance of low pH values and high ethanol and inhibitor concentrations and its ability to grow anaerobically. Attention is paid to utilizing lignocellulosic biomass as a potential substrate.
Collapse
|
30
|
Genome shuffling to improve thermotolerance, ethanol tolerance and ethanol productivity of Saccharomyces cerevisiae. J Ind Microbiol Biotechnol 2008; 36:139-47. [PMID: 18846398 DOI: 10.1007/s10295-008-0481-z] [Citation(s) in RCA: 121] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2008] [Accepted: 09/19/2008] [Indexed: 10/21/2022]
Abstract
Genome shuffling is a powerful strategy for rapid engineering of microbial strains for desirable industrial phenotypes. Here we improved the thermotolerance and ethanol tolerance of an industrial yeast strain SM-3 by genome shuffling while simultaneously enhancing the ethanol productivity. The starting population was generated by protoplast ultraviolet irradiation and then subjected for the recursive protoplast fusion. The positive colonies from the library, created by fusing the inactivated protoplasts were screened for growth at 35, 40, 45, 50 and 55 degrees C on YPD-agar plates containing different concentrations of ethanol. Characterization of all mutants and wild-type strain in the shake-flask indicated the compatibility of three phenotypes of thermotolerance, ethanol tolerance and ethanol yields enhancement. After three rounds of genome shuffling, the best performing strain, F34, which could grow on plate cultures up to 55 degrees C, was obtained. It was found capable of completely utilizing 20% (w/v) glucose at 45-48 degrees C, producing 9.95% (w/v) ethanol, and tolerating 25% (v/v) ethanol stress.
Collapse
|
31
|
Edgardo A, Carolina P, Manuel R, Juanita F, Baeza J. Selection of thermotolerant yeast strains Saccharomyces cerevisiae for bioethanol production. Enzyme Microb Technol 2008. [DOI: 10.1016/j.enzmictec.2008.02.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
32
|
da Silva Filho EA, de Melo HF, Antunes DF, dos Santos SKB, do Monte Resende A, Simões DA, de Morais MA. Isolation by genetic and physiological characteristics of a fuel-ethanol fermentative Saccharomyces cerevisiae strain with potential for genetic manipulation. J Ind Microbiol Biotechnol 2005; 32:481-6. [PMID: 16175407 DOI: 10.1007/s10295-005-0027-6] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2005] [Accepted: 07/31/2005] [Indexed: 11/28/2022]
Abstract
Fuel ethanol fermentation process is a complex environment with an intensive succession of yeast strains. The population stability depends on the use of a well-adapted strain that can fit to a particular industrial plant. This stability helps to keep high level of ethanol yield and it is absolutely required when intending to use recombinant strains. Yeast strains have been previously isolated from different distilleries in Northeast Brazil and clustered in genetic strains by PCR-fingerprinting. In this report we present the isolation and selection of a novel Saccharomyces cerevisiae strain by its high dominance in the yeast population. The new strain, JP1 strain, presented practically the same fermentative capacity and stress tolerance like the most used commercial strains, with advantages of being highly adapted to different industrial units in Northeast Brazil that used sugar cane juice as substrate. Moreover, it presented higher transformation efficiency that pointed out its potential for genetic manipulations. The importance of this strain selection programme for ethanol production is discussed.
Collapse
|
33
|
Gomes FCO, Pataro C, Guerra JB, Neves MJ, Corrêa SR, Moreira ESA, Rosa CA. Physiological diversity and trehalose accumulation in Schizosaccharomyces pombe strains isolated from spontaneous fermentations during the production of the artisanal Brazilian cachaça. Can J Microbiol 2002; 48:399-406. [PMID: 12109879 DOI: 10.1139/w02-032] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Twenty-seven Schizosaccharomyces pombe isolates from seven cachaça distilleries were tested for maximum temperature of growth and fermentation, osmotolerance, ethanol resistance, invertase production, and trehalose accumulation. Two isolates were selected for studies of trehalose accumulation under heat shock and ethanol stress. The S. pombe isolates were also characterized by RAPD-PCR. The isolates were able to grow and ferment at 41 degrees C, resisted concentrations of 10% ethanol, and grew on 50% glucose medium. Four isolates yielded invertase activity of more than 100 micromol of reducing sugar x mg(-1) x min(-1). The S. pombe isolates were able to accumulate trehalose during stationary phase. Two isolates, strains UFMG-A533 and UFMG-A1000, submitted to a 15 min heat shock, were able to accumulate high trehalose levels. Strain UFMG-A533 had a marked reduction in viability during heat shock, but strain UFMG-A1000 preserved a viability rate of almost 20% after 15 min at 48 degrees C. No clear correlation was observed between trehalose accumulation and cell survival during ethanol stress. Strain UFMG-A1000 had higher trehalose accumulation levels than strain UFMG-A533 under conditions of combined heat treatment and ethanol stress. Molecular analysis showed that some strains are maintained during the whole cachaça production period; using the RAPD-PCR profiles, it was possible to group the isolates according to their isolation sites.
Collapse
Affiliation(s)
- Fátima C O Gomes
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | | | | | | | | | | |
Collapse
|
34
|
|