Bacterial cellulose as an oleaginous yeast cell carrier for soybean oil refinery effluent treatment and pyrolysis oil production

Qiao, Nan; Fan, Xue; Hu, Shuang; Zhang, Xiuzhen; Du, Yundi; Wang, Lei; Zhang, Xiaojun; Yu, Dayu

doi:10.1007/s00449-020-02476-5

Cited by 4 publications

(4 citation statements)

References 28 publications

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“…The biochar yield could be increased more if the pyrolysis temperature is lowered than 400 °C. However, the increase yield of biochar could come with the residual lipid since it is known from a previous study that the decomposition of lipids in oleaginous yeast occurred around 392–516 °C [ 39 ]. Therefore, lower temperatures than 400 °C would produce biochar contaminated with oleaginous yeast lipids or volatiles.…”

Section: Resultsmentioning

confidence: 99%

“…In 2020 and 2021, small-scale fixed-bed pyrolysis experiments were carried out applying 0.5–1.0 g of Trichosporon fermentans yeast cultivated by refined soybean oil wastewater [ 32 , 39 ]. The yeast samples were heated at a rate of 10 °C/min in a tube furnace from ambient temperature to 300–500 °C with 30 min holding time.…”

Section: Introductionmentioning

confidence: 99%

“…The bio-oil was subsequently analyzed by GC-TOF/MS technique. It has been shown that the yeast bio-oil was a mixture of low-to-intermediate molecular weight (C7–C18) compounds representing saturated alkanes as well as aromatic and oxygenated compounds [ 39 ]. The bio-oil hydrocarbon contents were 28% when applying the pyrolysis temperature of 500 °C and became 41% when the temperature was increased to 600 °C [ 32 ].…”

Section: Introductionmentioning

confidence: 99%

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Oleaginous yeast, Rhodotorula paludigena CM33, platform for bio-oil and biochar productions via fast pyrolysis

Poopisut

Boonyanan

Boontawan

et al. 2023

Biotechnol Biofuels

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An oleaginous yeast Rhodotorula paludigena CM33 was pyrolyzed for the first time to produce bio-oil and biochar applying a bench-scale reactor. The strain possessed a high lipid content with the main fatty acids similar to vegetable oils. Prior to pyrolysis, the yeast was dehydrated using a spray dryer. Pyrolysis temperatures in the range of 400–600 °C were explored in order to obtain the optimal condition for bio-oil and biochar production. The result showed that a maximum bio-oil yield of 60% was achieved at 550 °C. Simulated distillation gas chromatography showed that the bio-oil contained 2.6% heavy naphtha, 20.7% kerosene, 24.3% biodiesel, and 52.4% fuel oil. Moreover, a short path distillation technique was attempted in order to further purify the bio-oil. The biochar was also characterized for its properties. The consequence of this work could pave a way for the sustainable production of solid and liquid biofuel products from the oleaginous yeast.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Oleaginous yeast, Rhodotorula paludigena CM33, platform for bio-oil and biochar productions via fast pyrolysis

Poopisut

Boonyanan

Boontawan

et al. 2023

Biotechnol Biofuels

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show abstract

“…It was hypothesised that BC with a strong binding or immobilisation capacity with water should reduce ice crystallisation and recrystallisation, and subsequent damage of yeast cells, resulting in a better quality of the final baked product (Illa et al ., 2019; Ding et al ., 2020). Additionally, BC could be used as an excellent carrier for yeast fermentation and play an important role in biotransformation efficiency and avoiding toxic substances to damage productive cells (Saravanakumar et al ., 2016; Qiao et al ., 2021).…”

Section: Resultsmentioning

confidence: 99%

Improved physicochemical and fermentation properties of frozen dough with bacterial cellulose

Zhen-ni

Fan

Hong

et al. 2022

Int J of Food Sci Tech

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Summary Effects of a novel category of hydrocolloid (Bacterial cellulose, BC) on physicochemical and fermentation properties of frozen dough were studied to address the reduction in baking performance due to refrigeration. The addition of BC reduced free thiol content and inhibited the de‐polymerisation degree of glutenin macropolymers, resulting in enhanced emulsifying activities of frozen dough, when the amount was added up to 0.1 g 100 g−1of wheat flour (dry basis). Further supplement hurt these attributes due to competition for water molecules. However, increasing the addition of BC significantly enhanced its protective effect on yeast activity, which in turn improved the fermentation properties of frozen dough. After 8 weeks of storage at −18 °C, 31% of yeast survived in with the protection of BC. When BC was added at a ratio of 0.1 g 100 g−1 of wheat flour, the improved frozen dough showed maximum volume of gas which was 2.7 times higher than that of the control after 3 h of fermentation. Baking performances confirmed the effect of BC as bread crumbs containing intermediate addition of BC rose optimally during proofing and baking, which contributed to the higher specific volume, less firm and more tender crumb texture of bread. These results suggested that BC might act as an effective additive to improve the shelf‐life stability of frozen food during long periods of frozen storage.

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Waste valorization for biofuel production by oleaginous yeast

Singh

Kumari

Daverey

et al. 2023

Advances in Yeast Biotechnology for Biofuels and Sustainability

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Bacterial cellulose as an oleaginous yeast cell carrier for soybean oil refinery effluent treatment and pyrolysis oil production

Cited by 4 publications

References 28 publications

Oleaginous yeast, Rhodotorula paludigena CM33, platform for bio-oil and biochar productions via fast pyrolysis

Oleaginous yeast, Rhodotorula paludigena CM33, platform for bio-oil and biochar productions via fast pyrolysis

Improved physicochemical and fermentation properties of frozen dough with bacterial cellulose

Waste valorization for biofuel production by oleaginous yeast

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