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Agroindustrial byproduct-based media in the production of microbial oil rich in oleic acid and carotenoids
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Agroindustrial byproduct-based media in the production of microbial oil rich in oleic acid and carotenoids
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Journal Article
Agroindustrial byproduct-based media in the production of microbial oil rich in oleic acid and carotenoids
2022
Overview
This study focuses on the potential of
Rhodotorula mucilaginosa
CCT 7688 in simultaneous production of lipids and carotenoids in agroindustrial byproduct-based media and specially aims at establishing a process condition that guarantees high concentrations of both bioproducts, i.e., a carotenoid-rich microbial oil with potential economic value and health benefits attributed to carotenoids and fatty acids. Four different combinations of cultivation modes (batch and fed-batch) and alternative substrates (crude glycerol, sugarcane molasses and corn steep liquor) were tested. The M2-B assay, which comprises the use of an agroindustrial byproduct-based medium without any supplementation (70 g L
−1
sugarcane molasses and 3.4 g L
−1
corn steep liquor) and batch mode, was selected as the most promising one to produce both compounds. Total carotenoid production and total lipid content were 1794.2 µg L
−1
and 43.2% (w/w), respectively, after 144 h of cultivation. The fatty acid profile showed predominance of oleic acid (69.9%) and palmitic acid (23.2%). Thus,
R. mucilaginosa
CCT 7688 may be used in simultaneous production of lipids and carotenoids successfully; its fatty acid profile is similar to that found in olive oil. Both compounds are economically interesting and have great possibility of future commercial applications.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
