Microbial lipid production from potato processing wastewater using oleaginous filamentous fungi Aspergillus oryzae

Muniraj, Iniya Kumar; Xiao, Liwen; Hu, Zhenhu; Zhan, Xinmin; Shi, Jianghong

doi:10.1016/j.watres.2013.03.046

Cited by 96 publications

(42 citation statements)

References 37 publications

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“…According to the results, the wastewater showed no remarkable inhibition on the growth of the oleaginous yeasts. Muniraj et al reported that the removal of COD by oleaginous filamentous fungi Aspergillus oryzae was up to 91% using the potato processing wastewater, which contained 37 g L 21 oxygen and 31.2 g L 21 starch [20]. Interestingly, as shown in Figure 2, the four oleaginous yeasts utilized glucose and xylose simultaneously, and the consumption of glucose was faster than that of xylose.…”

Section: Discussionmentioning

confidence: 98%

Microbial conversion of wastewater from butanol fermentation to microbial oil and biomass by oleaginous yeasts

Song

Chen

et al. 2017

Env Prog and Sustain Energy

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Four oleaginous yeasts (Trichosporon coremiiforme, Trichosporon dermatis, Cryptococcus albidus, and Trichosporon cutaneum) were used for treatment of the wastewater after butanol fermentation. The wastewater containing high COD value (33.70 g L−1) and total sugar concentration (13.07 g L−1) could satisfy the requirement of cellular growth. Among the four strains, the highest cell accumulation of 9.82 g L−1 was produced by T. cutaneum, and the maximum biomass (9.76 g L−1) of T. dermatis was also obtained after four days fermentation, followed by T. coremiiforme (7.90 g L−1) and C. albidus (7.59 g L−1). However, T. coremiiforme achieved the highest lipid content (34.35%) and yield (2.38 g L−1) after four days' fermentation. The lipid content of T. dermatis, C. albidus and T. cutaneum increased up to 15.69%, 10.25%, and 15.39%, respectively. Meanwhile, after five days' fermentation, the conversion yields of lipid/COD (%, g L−1/g L−1) by T. coremiiforme, T. dermatis, C. albidus, and T. cutaneum were 7.47%, 3.72%, 3.18%, and 3.03%, respectively. Results showed that T. coremiiforme had the highest yield (1635.4 mg L−1) of the fatty acids composition (C18:1 and C18:2), followed by T. dermatis (978.9 mg L−1) and T. cutaneum (998.4 mg L−1). Comparison among the four oleaginous yeasts, T. coremiiforme gave the best bioconversion for lipid content, lipid yield and conversion yields using the wastewater after butanol fermentation as the growth medium oleaginous yeasts. The results suggested that T. Coremiiforme had a great potential to be a candidate for biodiesel feedstock. This bioconversion of wastewater from butanol fermentation to microbial oil and biomass by oleaginous yeasts could both solve the environmental problem and offer lipid production with low cost. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1220–1226, 2018

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Section: Discussionmentioning

confidence: 98%

Microbial conversion of wastewater from butanol fermentation to microbial oil and biomass by oleaginous yeasts

Song

Chen

et al. 2017

Env Prog and Sustain Energy

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“…Hence it is necessary to sterilize the medium and introduce a pure culture. [133] Muniraj et al studied microbial lipid production using sterilized potato-processing wastewater and obtained 3.5 g/L of lipids. Although sterilization is expensive, the lipid yield obtained would be much higher and effective utilization of substrates by single microbes would avoid unnecessary by-products such as biogas.…”

Section: Wastewatermentioning

confidence: 99%

“…High lipid yields following sterilization could compensate the sterilization cost when compared to unsterilized medium. [133,134] However, a detailed cost-benefit analysis should be conducted through laboratory-and pilot-scale studies before commercialization, which is still in shortage.…”

Section: Wastewatermentioning

confidence: 99%

Microbial lipid production from renewable and waste materials for second-generation biodiesel feedstock

Muniraj

Uthandi

et al. 2015

Environmental Technology Reviews

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Microbes have been exploited to produce a variety of high-value products such as enzymes, proteins, antibiotics, vitamins, etc. Use of oleaginous microorganisms for production of lipids (commonly called as single cell oils) commenced during the eighteenth century in Germany. Microbial lipids containing special fatty acids such as gamma-linolenic acid, arachidonic acid and docosahexaenoic acid are popularized and are now being produced in a large scale as neutraceuticals and food additives. In the past decade, microbial lipids have been considered as a promising feedstock for biodiesel production due to the contemporary issues on climate change, renewable energy and food security. Recently, various cheap raw materials and biowastes have been explored for economic microbial lipid production, which is considered as a solution to reduce biodiesel production cost and to achieve sustainable management of biowastes. Thus, microbial lipids produced from renewable biomass and biowastes as a second-generation biodiesel feedstock are a promising alternative for vegetable oils. In this review historical development of microbial lipids, biochemistry of lipid accumulation by oleaginous microorganisms, lipid production from various biowastes and renewable materials and cultivation methodologies are reviewed. Microbial lipids as a biodiesel feedstock are also reviewed and discussed.

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“…The COD removal of P. lilacinus in this study was comparable with that of other studies. Muniraj et al [31] used potato processing waste water to grow oleaginous filamentous fungi Aspergillus oryzae for lipid production and achieved a COD reduction of 91%. In an attempt to find a more effective treatment for tequila vinasses, Retes et al [32] observed an 88.7% COD removal by white-rot fungi.…”

Section: Bioassay Of Egg-parasitic Abilitymentioning

confidence: 99%

Conversion of food waste into biofertilizer for the biocontrol of root knot nematode by Paecilomyces lilacinus

Zhang

et al. 2015

Environmental Technology

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The feasibility of converting food waste into nematocidal biofertilizer by nematophagous fungus Paecilomyces lilacinus (P. lilacinus) was investigated. The culture conditions of P. lilacinus were optimized through response surface methodology. Results showed that fermentation time, the amount of food waste, initial pH and temperature were most important factors for P. lilacinus production. The P. lilacinus production under optimized conditions was 10(9.6 ± 0.3) conidia mL⁻¹. After fermentation, the chemical oxygen demand concentration of food waste was efficiently decreased by 81.92%. Moreover, the property evaluation of the resultant food waste as biofertilizer indicates its high quality with reference to the standard released by the Chinese Ministry of Agriculture. The protease activity and nematocidal ability of P. lilacinus cultured by food waste were 10.8% and 27% higher than those by potato dextrose agar, respectively.

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Microbial lipid production from potato processing wastewater using oleaginous filamentous fungi Aspergillus oryzae

Cited by 96 publications

References 37 publications

Microbial conversion of wastewater from butanol fermentation to microbial oil and biomass by oleaginous yeasts

Microbial conversion of wastewater from butanol fermentation to microbial oil and biomass by oleaginous yeasts

Microbial lipid production from renewable and waste materials for second-generation biodiesel feedstock

Conversion of food waste into biofertilizer for the biocontrol of root knot nematode by Paecilomyces lilacinus

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