Publication: Discovery of Oleaginous Yeast from Mountain Forest Soil in Thailand
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Issued Date
2022
Resource Type
Language
eng
File Type
application/pdf
ISSN
2309608X
Rights Holder(s)
มหาวิทยาลัยศรีนครินทรวิโรฒ
Bibliographic Citation
Journal of Asthma and Allergy. Vol 15, No. (2022), p.1125-1141
Suggested Citation
Sapsirisuk S., Polburee P., Lorliam W., Limtong S. Discovery of Oleaginous Yeast from Mountain Forest Soil in Thailand. Journal of Asthma and Allergy. Vol 15, No. (2022), p.1125-1141. doi:10.3390/jof8101100 Retrieved from: https://hdl.handle.net/20.500.14740/9145
Author(s)
Abstract
As an interesting alternative microbial platform for the sustainable synthesis of oleochemical building blocks and biofuels, oleaginous yeasts are increasing in both quantity and diversity. In this study, oleaginous yeast species from northern Thailand were discovered to add to the topology. A total of 127 yeast strains were isolated from 22 forest soil samples collected from mountainous areas. They were identified by an analysis of the D1/D2 domain of the large subunit rRNA (LSU rRNA) gene sequences to be 13 species. The most frequently isolated species were Lipomyces tetrasporus and Lipomyces starkeyi. Based on the cellular lipid content determination, 78 strains of ten yeast species, and two potential new yeast that which accumulated over 20% of dry biomass, were found to be oleaginous yeast strains. Among the oleaginous species detected, Papiliotrema terrestris and Papiliotrema flavescens have never been reported as oleaginous yeast before. In addition, none of the species in the genera Piskurozyma and Hannaella were found to be oleaginous yeast. L. tetrasporus SWU-NGP 2-5 accumulated the highest lipid content of 74.26% dry biomass, whereas Lipomyces mesembrius SWU-NGP 14-6 revealed the highest lipid quantity at 5.20 ± 0.03 g L−1. The fatty acid profiles of the selected oleaginous yeasts varied depending on the strain and suitability for biodiesel production. © 2022 by the authors.