Publications by authors named "Suvit Tia"
Stepwise extraction of high-value chemicals from () and an economic feasibility study.
Biotechnol Rep (Amst)
December 2018
() consists of diverse high-value chemicals, such as phycocyanin, lipids/total fatty acids (TFA), and polysaccharides, which have been used for food, cosmetic and pharmacological applications. This study compared various stepwise extraction processes for these high-value chemicals. Considering the yield and properties of extracts, the most suitable extraction order was phycocyanin, lipid/TFA and polysaccharides.
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- The study focused on improving the extraction of polysaccharides from Spirulina sp. by examining how different factors like solid-to-liquid ratio, extraction temperature, and time affect the yield.
- Using an experimental design method, it was found that both the extraction temperature and solid-to-liquid ratio significantly influenced polysaccharide yield, achieving an optimal yield of about 8.3% dry weight.
- The final polysaccharide extracts were notably rich in rhamnose (53% of total sugars) and had a phenolic content of 45 mg GAE/g of the sample.
The highest purity ratio of phycocyanin extract was obtained when fresh biomass was used as raw material. The crude extract was purified by membrane process using microfiltration and ultrafiltration. Membrane of pore sizes 5 μm, at feed flow rate of 150 mL min(-1), permeate flux of 58.
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