The
effects of six different sequential extractions of proteins,
lipids, and carbohydrates on their yields and subsequent biomass recoveries
was investigated. The maximum yields of lipids, proteins, and carbohydrates
were 26.50 ± 1.32%, 28.14 ± 1.97%, and 16.40 ± 0.43%,
respectively, in primary extraction of biomass. Compared to the primary
extractions, lipid yields were significantly lowered by 20–22%
in secondary extractions. The maximum loss of proteins in secondary
(post lipid extraction) and tertiary extractions was 34.79% and 56%,
respectively. The most significant loss (38–44.5%) in carbohydrates
was recorded after tertiary extractions. Among all of the extraction
sequences, the sequence of proteins–lipids–carbohydrates
extracted algae (PLCEA) showed optimum recovery of individual metabolite.
For this extraction sequence, the yields of proteins, lipids, and
carbohydrates were found to be 28.14%, 22%, and 10.17%, respectively.
It was also characterized by the highest residual biomass available
for second (80%) and third (61%) steps of extraction. Finally, the
cumulative yields of these metabolites were converted into net value
gains. The extraction sequence PLCEA could result in 66.5% net value
gain overcoming the cost of biomass generation.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.