Sustainable production of yeast oil from rice straw hydrolysate by Pseudozyma parantarctica through fed-batch cultivation for bio-polyurethane foam formation
{"title":"Sustainable production of yeast oil from rice straw hydrolysate by Pseudozyma parantarctica through fed-batch cultivation for bio-polyurethane foam formation","authors":"Thidarat Samranrit , Kessuda Ngernsombat , Sujaya Ritthisorn , Jantima Teeka , Chiu-Hsia Chiu , Alissara Reungsang , Atsadawut Areesirisuk","doi":"10.1016/j.biteb.2024.101892","DOIUrl":null,"url":null,"abstract":"<div><p>Rice straw serves as an alternative feedstock for yeast oil (YO) production and bio-polyurethane (BPU) foam formation. This study optimized yeast growth and YO production by <em>Pseudozyma parantarctica</em>, utilizing rice straw hydrolysate (RSH) as the primary carbon source. Fed-batch strategies were explored to enhance YO production efficiency and its conversion into BPU foam. The optimized conditions proved highly effective in yielding biomass and YO from RSH-OPM. The fed-batch approach significantly improved biomass, YO production, and oil content to 7.35 ± 0.18 g/L, 3.77 ± 0.09 g/L, and 51.21 ± 0.15 % (w/w), respectively. The main fatty acid (FA) compositions of YO consisted of C:16 to C:18 FAs for over 92 %. RSH-based YO was successfully transformed into both rigid and semi-rigid BPU foams. This research demonstrated the feasibility and potential of using RSH as a low-cost and renewable carbon source for YO production and BPU foam formation.</p></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bioresource Technology Reports","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2589014X24001336","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Environmental Science","Score":null,"Total":0}
引用次数: 0
Abstract
Rice straw serves as an alternative feedstock for yeast oil (YO) production and bio-polyurethane (BPU) foam formation. This study optimized yeast growth and YO production by Pseudozyma parantarctica, utilizing rice straw hydrolysate (RSH) as the primary carbon source. Fed-batch strategies were explored to enhance YO production efficiency and its conversion into BPU foam. The optimized conditions proved highly effective in yielding biomass and YO from RSH-OPM. The fed-batch approach significantly improved biomass, YO production, and oil content to 7.35 ± 0.18 g/L, 3.77 ± 0.09 g/L, and 51.21 ± 0.15 % (w/w), respectively. The main fatty acid (FA) compositions of YO consisted of C:16 to C:18 FAs for over 92 %. RSH-based YO was successfully transformed into both rigid and semi-rigid BPU foams. This research demonstrated the feasibility and potential of using RSH as a low-cost and renewable carbon source for YO production and BPU foam formation.