Bioconversion of corncob hydrolysate into microbial lipid by an oleaginous yeast Rhodotorula taiwanensis AM2352 for biodiesel production

Miao, Zhengang; Tian, Xue-Mei; Liang, Wenxing; He, Yanan; Wang, Guangyuan

doi:10.1016/j.renene.2020.07.007

Cited by 59 publications

(21 citation statements)

References 33 publications

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“…In a study using Trichosporon dermatis 32903 that compares the influence on lipid production of C/N ratios from 30 to 130, the ratio of 110 led to the highest lipid production (16.33 g/L) [ 75 ]. For R. taiwanensis AM2352, the highest amount of lipids accumulated was at a C/N ratio of 30 [ 69 ]. Collectively, these results emphasise the importance of choosing an appropriate C/N ratio according to the carbon source, the selected strain and other cultivation conditions.…”

Section: Effect Of Process Conditions In the Production Of Yeast Oilsmentioning

confidence: 99%

Exploring Yeast Diversity to Produce Lipid-Based Biofuels from Agro-Forestry and Industrial Organic Residues

Mota

Múgica²,

Correia

2022

JoF

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Exploration of yeast diversity for the sustainable production of biofuels, in particular biodiesel, is gaining momentum in recent years. However, sustainable, and economically viable bioprocesses require yeast strains exhibiting: (i) high tolerance to multiple bioprocess-related stresses, including the various chemical inhibitors present in hydrolysates from lignocellulosic biomass and residues; (ii) the ability to efficiently consume all the major carbon sources present; (iii) the capacity to produce lipids with adequate composition in high yields. More than 160 non-conventional (non-Saccharomyces) yeast species are described as oleaginous, but only a smaller group are relatively well characterised, including Lipomyces starkeyi, Yarrowia lipolytica, Rhodotorula toruloides, Rhodotorula glutinis, Cutaneotrichosporon oleaginosus and Cutaneotrichosporon cutaneum. This article provides an overview of lipid production by oleaginous yeasts focusing on yeast diversity, metabolism, and other microbiological issues related to the toxicity and tolerance to multiple challenging stresses limiting bioprocess performance. This is essential knowledge to better understand and guide the rational improvement of yeast performance either by genetic manipulation or by exploring yeast physiology and optimal process conditions. Examples gathered from the literature showing the potential of different oleaginous yeasts/process conditions to produce oils for biodiesel from agro-forestry and industrial organic residues are provided.

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Section: Effect Of Process Conditions In the Production Of Yeast Oilsmentioning

confidence: 99%

Exploring Yeast Diversity to Produce Lipid-Based Biofuels from Agro-Forestry and Industrial Organic Residues

Mota

Múgica²,

Correia

2022

JoF

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“…The most beneficial are oily yeasts, with a fast growth rate, high lipid content without endotoxins, simple large-scale fermentation. [38] .…”

Section: Microbial Lipidmentioning

confidence: 99%

“…In the 5-L batch fermentor, biomass and lipid content reached 18.7 g/l and 60.3% (w/w), respectively. The primary fatty acids were shown as long-chain fatty acids (C16 -C18) [38] .…”

Section: Microbial Lipidmentioning

confidence: 99%

Recent Methods in the Pretreatment of Corncob Wastes for Value-Added Bioproducts Carbon Sources

Adiandri

Purwadi

Hoerudin

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Corncobs are composed of cellulose, hemicellulose, and lignin. Cellulose and hemicellulose are monomeric sugars that can be utilized as carbon sources for microbial growth and bioproduct formation. However, corncobs present several challenges due to their complex and recalcitrant nature. Addressing these challenges for increased enzymatic and microbial accessibility requires pretreatment methods to break down resistant structures, thus enabling the recovery of fermentable sugars. Different pretreatment methods on corncob wastes have been studied extensively: chemical, physicochemical, and combined pretreatments. Among the developed pretreatment methods, combined pretreatments are the most widely used in the corncob pretreatment process to overcome various limitations in a single pretreatment method. Several combined pretreatment can increase sugar production, shorten processing time and repress inhibitor formation. This review article would assist in determining the best pretreatment method for corncobs according to the advantages, challenges, and effectiveness of various pretreatment methods

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“…One property of oleaginous yeasts that havr been effectively studied is their utilisation of the type of substrates and the effect each component have on lipid accumulation. Some like Rhodosporidium toruloides (ATCC 10,788) [40], Rhodotorula taiwanensis AM2352 [41], Rhodosporidiobolus fluvialis DMKU-SP314 [42], Trichosporon sp. [43], Trichosporon oleaginosus (ATCC 20,905) [44], Cryptococcus psychrotolerans IITRFD [45], Wickerhamomyces anomalus [46], and Candida viswanathiiY-E4 [47], have the ability to produce lipids from low-cost organic biomass, whereas others like Meyerozyma guilliermondii BI281A [48], Rhodotorula glutinis R4 [49], and Apiotrichum porosum DSM27194 [50] can only assimilate lipid when cultured in synthetic media under a constant supply of specific carbon sources.…”

Section: Oleaginous Yeastsmentioning

confidence: 99%

Prospect of metabolic engineering in enhanced microbial lipid production: review

Saha

Mukhopadhyay²

2021

Biomass Conv. Bioref.

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The use of fossil fuels has increasingly become associated with negative influences like detrimental environmental effects. This has made renewables, especially biofuels like biodiesel, a highly attractive substitute for energy generation. The industrial and economic potential of biodiesel-a lipid-based fuel-has increased interest and research into oleaginous microorganisms to synthesise and produce lipids. Effective identification and characterisation of a vast array of oleaginous microorganisms have led them to be employed for their efficient lipogenesis capability and ability to use a wide range of synthetic and non-expensive substrates. However, low lipid production has limited the use of microbially sourced lipids for biodiesel production at the industrial level. Nevertheless, the improvement and engineering of robust strains of these microbes through metabolic engineering have increased their lipid production capacity, leading to commercialising the lipids. This review provides a comprehensive outlook into the identification of different oleaginous microorganisms and their unique characteristics, which makes them highly valuable. An insight into the lipid biosynthesis pathways is provided and the role that several enzymes and regulators play in the metabolism of lipid accumulation. A detailed outlook is provided on the broad range of metabolic engineering approaches with regard to enhanced lipid production in several oleaginous microorganisms.

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Bioconversion of corncob hydrolysate into microbial lipid by an oleaginous yeast Rhodotorula taiwanensis AM2352 for biodiesel production

Cited by 59 publications

References 33 publications

Exploring Yeast Diversity to Produce Lipid-Based Biofuels from Agro-Forestry and Industrial Organic Residues

Exploring Yeast Diversity to Produce Lipid-Based Biofuels from Agro-Forestry and Industrial Organic Residues

Recent Methods in the Pretreatment of Corncob Wastes for Value-Added Bioproducts Carbon Sources

Prospect of metabolic engineering in enhanced microbial lipid production: review

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