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

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 dr...

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Veröffentlicht in:Biotechnology for biofuels 2023-02, Vol.16 (1), p.17-14, Article 17
Hauptverfasser: Poopisut, Pongsatorn, Boonyanan, Pasama, Boontawan, Pailin, Sukjit, Ekarong, Promsampao, Nuttapan, Chollacoop, Nuwong, Ketudat-Cairns, Mariena, Pattiya, Adisak, Boontawan, Apichat
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Sprache:eng
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Zusammenfassung: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.
ISSN:2731-3654
2731-3654
1754-6834
DOI:10.1186/s13068-023-02270-x