New biotechnological opportunities for C5 sugars from lignocellulosic materials

Farias, Daniele; Mélo, Allan Henrique Félix de; Silva, Marcos Fellipe da; Bevilaqua, Gabriel Cicalese; Ribeiro, Danielle Garcia; Goldbeck, Rosana; Maugeri‐Filho, Francisco

doi:10.1016/j.biteb.2022.100956

Cited by 14 publications

(3 citation statements)

References 124 publications

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“…In addition to ethanol production from plant biomass, another promising application for pentose-assimilating and fermenting yeasts is their employment as producers of other chemicals including sugar alcohols, or polyols, such as xylitol, arabitol, and erythritol, as well as various organic acids and single cell protein [4]. Polyols are considered sugar substitutes as they possess high sweetening power and a comparatively low glycemic index.…”

Section: Taxonomy Of Pentose-fermenting Yeastsmentioning

confidence: 99%

“…Polyols are considered sugar substitutes as they possess high sweetening power and a comparatively low glycemic index. Th ey could be used in various food and pharmaceutical products as sweeteners, stabilizers, and texturizing agents [4]. Most research on polyol production by pentose-fermenting yeasts focuses on xylitol production.…”

Section: Taxonomy Of Pentose-fermenting Yeastsmentioning

confidence: 99%

“…Hemicellulose is more susceptible to hydrolysis compared to the other lignocellulose components. Lignin is a non-carbohydrate phenolic polymer and is the most undegradable component of plant biomass [4].…”

mentioning

confidence: 99%

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Pentose-Fermenting Yeasts in Nature: Ecology, Biodiversity and Applications

Ianieva¹

2023

Mikrobiol. Z.

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The world’s energy sector has undergone drastic changes in the last decades due to the climate change and the turn to renewable energy sources. Biomass is the largest renewable source of carbohydrates on the Earth and is an important substrate for biofuel production. Saccharomyces cerevisiae yeasts are the main producer of first-generation ethanol from corn and sugarcane. However, these yeasts lack the ability to utilize the important components of lignocelluloses such as pentoses D-xylose and L-arabinose. Pentose-fermenting yeasts could become an alternative to S. cerevisiae in ethanol production from lignocelluloses. This review focuses on the ecology, geographical distribution, taxonomy, and potential applications of naturally-occurring pentose-fermenting yeasts. Pentose-fermenting yeasts have been frequently found in the lignocelluloseassociated substrates. Decaying and rotten wood and the gut of wood-boring insects are especially important natural reservoirs of this group of yeasts. Simple sugars xylose and L-arabinose would be present in such habitats as suitable nutrients for pentose-assimilating yeasts. The other natural habitats reported for pentose-fermenting yeasts are soil, plants, and herbivore faeces. Pentose-fermenting yeasts are found in many geographical regions and have been isolated on almost each continent. Dozens of novel pentose-fermenting yeast species have been discovered in the last decade. The previously poorly explored regions, including Brazil, China, and several Asian countries were especially oft en reported as sites of isolation of such yeasts. Most xylose-fermenting yeasts belong to genera Scheffersomyces, Candida, Spathaspora, Sugiyamaella, and Pachysolen, while the most efficient ethanol producers are represented by species Scheffersomyces stipitis and Spathaspora passalidarum. The vast majority of research on the biotechnological application of pentose-fermenting yeasts focuses on their role in the production of bioethanol from lignocellulose. This group of yeasts could be either directly involved in the fermentation stage of ethanol production or serve as a source of genetic material for the genetic manipulation of other industrial yeast strains. Pentose-fermenting yeasts could also be involved in the production of various chemicals from lignocellulosic substrates, mainly polyols, xylitol, and arabitol. Thus, the search for novel pentose-fermenting yeasts that could become new efficient ethanol producers or donors of new genetic material is still ongoing. The previously unexplored or poorly studied geographical regions and natural habitats can hide many novel yeasts with huge biotechnological potential.

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Section: Taxonomy Of Pentose-fermenting Yeastsmentioning

confidence: 99%

Section: Taxonomy Of Pentose-fermenting Yeastsmentioning

confidence: 99%