Efficient use of discarded vegetal residues as cost-effective feedstocks for microbial oil production.

ABSTRACT:

Background

Horticultural intensive type systems dedicated in producing greenhouse vegetables are one of the primary industries generating organic waste. Towards the implementation of a zero-waste strategy, this work aims to use discarded vegetables (tomato, pepper and watermelon) as feedstock for producing microbial oil using the oleaginous yeast Cryptococcus curvatus.

Results

The soluble fraction, resulting after crushing and centrifuging these residues, showed C/N ratios of about 15, with a total carbohydrate content (mainly glucose, fructose and sucrose) ranging from 30 g/L to 65 g/L. Using these liquid fractions as substrate under a pulse-feeding strategy with a concentrated glucose solution resulted in an intracellular total lipid accumulation of about 30% (w/w) of the

SUBMITTER: Gallego-Garcia M 

PROVIDER: S-EPMC9912647 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature