Yeasts in sustainable bioethanol production: A review
Bioethanol has been identified as the mostly used biofuel worldwide since it significantly contributes to the reduction of crude oil consumption and environmental pollution. It can be produced from various types of feedstocks such as sucrose, starch, lignocellulosic and algal biomass through ferment...
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| Format: | Article |
| Language: | English |
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Elsevier
2017-07-01
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| Series: | Biochemistry and Biophysics Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405580816302424 |
| _version_ | 1819232134177488896 |
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| author | Siti Hajar Mohd Azhar Rahmath Abdulla Siti Azmah Jambo Hartinie Marbawi Jualang Azlan Gansau Ainol Azifa Mohd Faik Kenneth Francis Rodrigues |
| author_facet | Siti Hajar Mohd Azhar Rahmath Abdulla Siti Azmah Jambo Hartinie Marbawi Jualang Azlan Gansau Ainol Azifa Mohd Faik Kenneth Francis Rodrigues |
| author_sort | Siti Hajar Mohd Azhar |
| collection | DOAJ |
| description | Bioethanol has been identified as the mostly used biofuel worldwide since it significantly contributes to the reduction of crude oil consumption and environmental pollution. It can be produced from various types of feedstocks such as sucrose, starch, lignocellulosic and algal biomass through fermentation process by microorganisms. Compared to other types of microoganisms, yeasts especially Saccharomyces cerevisiae is the common microbes employed in ethanol production due to its high ethanol productivity, high ethanol tolerance and ability of fermenting wide range of sugars. However, there are some challenges in yeast fermentation which inhibit ethanol production such as high temperature, high ethanol concentration and the ability to ferment pentose sugars. Various types of yeast strains have been used in fermentation for ethanol production including hybrid, recombinant and wild-type yeasts. Yeasts can directly ferment simple sugars into ethanol while other type of feedstocks must be converted to fermentable sugars before it can be fermented to ethanol. The common processes involves in ethanol production are pretreatment, hydrolysis and fermentation. Production of bioethanol during fermentation depends on several factors such as temperature, sugar concentration, pH, fermentation time, agitation rate, and inoculum size. The efficiency and productivity of ethanol can be enhanced by immobilizing the yeast cells. This review highlights the different types of yeast strains, fermentation process, factors affecting bioethanol production and immobilization of yeasts for better bioethanol production. |
| first_indexed | 2024-12-23T11:56:01Z |
| format | Article |
| id | doaj.art-b817d98119ca4f41bd31950ee678992d |
| institution | Directory Open Access Journal |
| issn | 2405-5808 |
| language | English |
| last_indexed | 2024-12-23T11:56:01Z |
| publishDate | 2017-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Biochemistry and Biophysics Reports |
| spelling | doaj.art-b817d98119ca4f41bd31950ee678992d2022-12-21T17:48:05ZengElsevierBiochemistry and Biophysics Reports2405-58082017-07-0110C526110.1016/j.bbrep.2017.03.003Yeasts in sustainable bioethanol production: A reviewSiti Hajar Mohd Azhar0Rahmath Abdulla1Siti Azmah Jambo2Hartinie Marbawi3Jualang Azlan Gansau4Ainol Azifa Mohd Faik5Kenneth Francis Rodrigues6Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, MalaysiaFaculty of Science and Natural Resources, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, MalaysiaFaculty of Science and Natural Resources, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, MalaysiaFaculty of Science and Natural Resources, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, MalaysiaFaculty of Science and Natural Resources, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, MalaysiaFaculty of Science and Natural Resources, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, MalaysiaBiotechnology Research Institute, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, MalaysiaBioethanol has been identified as the mostly used biofuel worldwide since it significantly contributes to the reduction of crude oil consumption and environmental pollution. It can be produced from various types of feedstocks such as sucrose, starch, lignocellulosic and algal biomass through fermentation process by microorganisms. Compared to other types of microoganisms, yeasts especially Saccharomyces cerevisiae is the common microbes employed in ethanol production due to its high ethanol productivity, high ethanol tolerance and ability of fermenting wide range of sugars. However, there are some challenges in yeast fermentation which inhibit ethanol production such as high temperature, high ethanol concentration and the ability to ferment pentose sugars. Various types of yeast strains have been used in fermentation for ethanol production including hybrid, recombinant and wild-type yeasts. Yeasts can directly ferment simple sugars into ethanol while other type of feedstocks must be converted to fermentable sugars before it can be fermented to ethanol. The common processes involves in ethanol production are pretreatment, hydrolysis and fermentation. Production of bioethanol during fermentation depends on several factors such as temperature, sugar concentration, pH, fermentation time, agitation rate, and inoculum size. The efficiency and productivity of ethanol can be enhanced by immobilizing the yeast cells. This review highlights the different types of yeast strains, fermentation process, factors affecting bioethanol production and immobilization of yeasts for better bioethanol production.http://www.sciencedirect.com/science/article/pii/S2405580816302424YeastsFermentationBioethanolImmobilization |
| spellingShingle | Siti Hajar Mohd Azhar Rahmath Abdulla Siti Azmah Jambo Hartinie Marbawi Jualang Azlan Gansau Ainol Azifa Mohd Faik Kenneth Francis Rodrigues Yeasts in sustainable bioethanol production: A review Biochemistry and Biophysics Reports Yeasts Fermentation Bioethanol Immobilization |
| title | Yeasts in sustainable bioethanol production: A review |
| title_full | Yeasts in sustainable bioethanol production: A review |
| title_fullStr | Yeasts in sustainable bioethanol production: A review |
| title_full_unstemmed | Yeasts in sustainable bioethanol production: A review |
| title_short | Yeasts in sustainable bioethanol production: A review |
| title_sort | yeasts in sustainable bioethanol production a review |
| topic | Yeasts Fermentation Bioethanol Immobilization |
| url | http://www.sciencedirect.com/science/article/pii/S2405580816302424 |
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