Efficient utilization of hemicellulose and cellulose in alkali liquor-pretreated corncob for bioethanol production at high solid loading by Spathaspora passalidarum U1-58

Yu, Hai; Guo, Jiansheng; Chen, Yefu; Fu, Gengxin; Li, Baozhong; Guo, Xuewu; Xiao, Dongguang

doi:10.1016/j.biortech.2017.01.077

Cited by 43 publications

(22 citation statements)

References 27 publications

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“…To improve inhibitor tolerance or ethanol production, Sp. passalidarum strains with improved performance have been developed (Long et al ., ; Hou and Yao, ; Morales et al ., ; Yu et al ., ). The type strain of Sp.…”

Section: Spathaspora Passalidarum: Candidate For ‘Domestication’ and mentioning

confidence: 97%

“…Ethanol production efficiencies >72% (under a separate hydrolysis and cofermentation approach) and 75% (at a simultaneous saccharification and cofermentation assay) were achieved by a mutant strain of Sp. passalidarum , acquired through atmospheric and room‐temperature plasma mutagenesis, and cultured in alkali liquor‐pretreated corncob (Yu et al ., ).…”

Section: Spathaspora Passalidarum: Candidate For ‘Domestication’ and mentioning

confidence: 97%

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The yeasts of the genus Spathaspora: potential candidates for second‐generation biofuel production

Cadete

Rosa

2017

Yeast

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Yeasts of the Spathaspora clade have the ability to convert d-xylose to ethanol and/or xylitol. This is an important trait, as these yeasts may be used to produce bioethanol from lignocellulosic biomass or as a source of new d-xylose metabolism genes for recombinant industrial strains of Saccharomyces cerevisiae. The core group of the genus Spathaspora has 22 species, both formally described and not yet described. Other species, such as Sp. allomyrinae, Candida alai, C. insectamans, C. lyxosophila, C. sake, Sp. boniae and C. subhashii are weakly associated with this clade, based on LSU rRNA gene D1/D2 sequence analyses. Spathaspora passalidarum, Sp. arborariae, Sp. gorwiae and Sp. hagerdaliae produce mostly ethanol from d-xylose, whereas the remaining species within the Spathaspora clade already tested for this property may be considered xylitol producers. Among the d-xylose-fermenting Spathaspora species, Sp. passalidarum is the best ethanol producer, displaying high ethanol yields and productivities when cultured in media supplemented with this pentose under oxygen-limited or anaerobic conditions. The species also exhibits rapid d-xylose consumption and the ability to ferment glucose, xylose and cellobiose simultaneously. These characteristics suggest that Sp. passalidarum is a potential candidate for domestication and use in the fermentation of lignocellulosic materials. Copyright © 2017 John Wiley & Sons, Ltd.

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Section: Spathaspora Passalidarum: Candidate For ‘Domestication’ and mentioning

confidence: 97%

Section: Spathaspora Passalidarum: Candidate For ‘Domestication’ and mentioning

confidence: 97%

The yeasts of the genus Spathaspora: potential candidates for second‐generation biofuel production

Cadete

Rosa

2017

Yeast

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“…This strain was generated by UV irradiation followed by successive growing of the strain under elevated acetic acid concentrations [41]. In similar way, another group also obtained a mutated S. passalidarum strain but via plasma mutagenesis and continuous cultivation in alkaline liquor pretreated corncob [42]. Under a simultaneous saccharification and co-fermentation, the obtained strain produced bioethanol with efficiency of 75% [42].…”

Section: New Adaptive Strains Of Spathaspora Passalidarum For Potentimentioning

confidence: 96%

“…In similar way, another group also obtained a mutated S. passalidarum strain but via plasma mutagenesis and continuous cultivation in alkaline liquor pretreated corncob [42]. Under a simultaneous saccharification and co-fermentation, the obtained strain produced bioethanol with efficiency of 75% [42]. Finally, Su et al in 2018 developed an adaptive S. passalidarum strain (named YK208-E11) [43], which is designated for resistance to AFEX hydrolysate inhibitors, from the wild-type NRRL Y-27907 through high-throughput screen via combining several approaches of batch adaptation, cell recycling, and cell mating [43].…”

Section: New Adaptive Strains Of Spathaspora Passalidarum For Potentimentioning

confidence: 98%

“…One of the major problems that hinders the use of S. passalidarum for industrial bioethanol production, even with its remarkable ability for bioethanol production, is the high sensitivity of S. passalidarum to the chemical inhibitors, such as ferulic and acetic acids, which are released in preparation of hemicellulosic hydrolysates [9]. Several elaborative studies have focused mainly on improving the tolerability of S. passalidarum to the hydrolysates inhibitors with keeping in mind the bioethanol productivity of the strains [19,[40][41][42][43]. Hou and Yao in (2012) reported a strong strain [40], which is able to grow on furfurals and many other inhibitors of wheat straw hydrolysate (75%) and able to accumulate up to 0.40 g/g ethanol.…”

Section: New Adaptive Strains Of Spathaspora Passalidarum For Potentimentioning

confidence: 99%

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The Xylose Metabolizing Yeast Spathaspora passalidarum is a Promising Genetic Treasure for Improving Bioethanol Production

2020

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Currently, the fermentation technology for recycling agriculture waste for generation of alternative renewable biofuels is getting more and more attention because of the environmental merits of biofuels for decreasing the rapid rise of greenhouse gas effects compared to petrochemical, keeping in mind the increase of petrol cost and the exhaustion of limited petroleum resources. One of widely used biofuels is bioethanol, and the use of yeasts for commercial fermentation of cellulosic and hemicellulosic agricultural biomasses is one of the growing biotechnological trends for bioethanol production. Effective fermentation and assimilation of xylose, the major pentose sugar element of plant cell walls and the second most abundant carbohydrate, is a bottleneck step towards a robust biofuel production from agricultural waste materials. Hence, several attempts were implemented to engineer the conventional Saccharomyces cerevisiae yeast to transport and ferment xylose because naturally it does not use xylose, using genetic materials of Pichia stipitis, the pioneer native xylose fermenting yeast. Recently, the nonconventional yeast Spathaspora passalidarum appeared as a founder member of a new small group of yeasts that, like Pichia stipitis, can utilize and ferment xylose. Therefore, the understanding of the molecular mechanisms regulating the xylose assimilation in such pentose fermenting yeasts will enable us to eliminate the obstacles in the biofuels pipeline, and to develop industrial strains by means of genetic engineering to increase the availability of renewable biofuel products from agricultural biomass. In this review, we will highlight the recent advances in the field of native xylose metabolizing yeasts, with special emphasis on S. passalidarum for improving bioethanol production.

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Recent Developments of Bioethanol Production

et al. 2021

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Efficient utilization of hemicellulose and cellulose in alkali liquor-pretreated corncob for bioethanol production at high solid loading by Spathaspora passalidarum U1-58

Cited by 43 publications

References 27 publications

The yeasts of the genus Spathaspora: potential candidates for second‐generation biofuel production

The yeasts of the genus Spathaspora: potential candidates for second‐generation biofuel production

The Xylose Metabolizing Yeast Spathaspora passalidarum is a Promising Genetic Treasure for Improving Bioethanol Production

Recent Developments of Bioethanol Production

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