Past, Present, and Future Perspectives on Whey as a Promising Feedstock for Bioethanol Production by Yeast
Concerns about fossil fuel depletion and the environmental effects of greenhouse gas emissions have led to widespread fermentation-based production of bioethanol from corn starch or sugarcane. However, competition for arable land with food production has led to the extensive investigation of lignoce...
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| Format: | Article |
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MDPI AG
2022-04-01
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| Series: | Journal of Fungi |
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| Online Access: | https://www.mdpi.com/2309-608X/8/4/395 |
| _version_ | 1797445516140740608 |
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| author | Jing Zou Xuedong Chang |
| author_facet | Jing Zou Xuedong Chang |
| author_sort | Jing Zou |
| collection | DOAJ |
| description | Concerns about fossil fuel depletion and the environmental effects of greenhouse gas emissions have led to widespread fermentation-based production of bioethanol from corn starch or sugarcane. However, competition for arable land with food production has led to the extensive investigation of lignocellulosic sources and waste products of the food industry as alternative sources of fermentable sugars. In particular, whey, a lactose-rich, inexpensive byproduct of dairy production, is available in stable, high quantities worldwide. This review summarizes strategies and specific factors essential for efficient lactose/whey fermentation to ethanol. In particular, we cover the most commonly used strains and approaches for developing high-performance strains that tolerate fermentation conditions. The relevant genes and regulatory systems controlling lactose utilization and sources of new genes are also discussed in detail. Moreover, this review covers the optimal conditions, various feedstocks that can be coupled with whey substrates, and enzyme supplements for increasing efficiency and yield. In addition to the historical advances in bioethanol production from whey, this review explores the future of yeast-based fermentation of lactose or whey products for beverage or fuel ethanol as a fertile research area for advanced, environmentally friendly uses of industrial waste products. |
| first_indexed | 2024-03-09T13:26:56Z |
| format | Article |
| id | doaj.art-10f66682186349d58f7962081cb5b38f |
| institution | Directory Open Access Journal |
| issn | 2309-608X |
| language | English |
| last_indexed | 2024-03-09T13:26:56Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Fungi |
| spelling | doaj.art-10f66682186349d58f7962081cb5b38f2023-11-30T21:22:10ZengMDPI AGJournal of Fungi2309-608X2022-04-018439510.3390/jof8040395Past, Present, and Future Perspectives on Whey as a Promising Feedstock for Bioethanol Production by YeastJing Zou0Xuedong Chang1College of Food Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066600, ChinaCollege of Food Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066600, ChinaConcerns about fossil fuel depletion and the environmental effects of greenhouse gas emissions have led to widespread fermentation-based production of bioethanol from corn starch or sugarcane. However, competition for arable land with food production has led to the extensive investigation of lignocellulosic sources and waste products of the food industry as alternative sources of fermentable sugars. In particular, whey, a lactose-rich, inexpensive byproduct of dairy production, is available in stable, high quantities worldwide. This review summarizes strategies and specific factors essential for efficient lactose/whey fermentation to ethanol. In particular, we cover the most commonly used strains and approaches for developing high-performance strains that tolerate fermentation conditions. The relevant genes and regulatory systems controlling lactose utilization and sources of new genes are also discussed in detail. Moreover, this review covers the optimal conditions, various feedstocks that can be coupled with whey substrates, and enzyme supplements for increasing efficiency and yield. In addition to the historical advances in bioethanol production from whey, this review explores the future of yeast-based fermentation of lactose or whey products for beverage or fuel ethanol as a fertile research area for advanced, environmentally friendly uses of industrial waste products.https://www.mdpi.com/2309-608X/8/4/395wheybioethanollactose<i>GAL</i> gene<i>Kluyveromyces</i><i>Saccharomyces cerevisiae</i> |
| spellingShingle | Jing Zou Xuedong Chang Past, Present, and Future Perspectives on Whey as a Promising Feedstock for Bioethanol Production by Yeast Journal of Fungi whey bioethanol lactose <i>GAL</i> gene <i>Kluyveromyces</i> <i>Saccharomyces cerevisiae</i> |
| title | Past, Present, and Future Perspectives on Whey as a Promising Feedstock for Bioethanol Production by Yeast |
| title_full | Past, Present, and Future Perspectives on Whey as a Promising Feedstock for Bioethanol Production by Yeast |
| title_fullStr | Past, Present, and Future Perspectives on Whey as a Promising Feedstock for Bioethanol Production by Yeast |
| title_full_unstemmed | Past, Present, and Future Perspectives on Whey as a Promising Feedstock for Bioethanol Production by Yeast |
| title_short | Past, Present, and Future Perspectives on Whey as a Promising Feedstock for Bioethanol Production by Yeast |
| title_sort | past present and future perspectives on whey as a promising feedstock for bioethanol production by yeast |
| topic | whey bioethanol lactose <i>GAL</i> gene <i>Kluyveromyces</i> <i>Saccharomyces cerevisiae</i> |
| url | https://www.mdpi.com/2309-608X/8/4/395 |
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