Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/105230
Title: Ultrasound assisted extraction of carbohydrates from microalgae as feedstock for yeast fermentation
Authors: Zhao, Guili
Chen, Xue
Wang, Lei
Zhou, Shixiao
Feng, Huixing
Lau, Raymond
Chen, William Wei Ning
Keywords: DRNTU::Engineering::Chemical engineering
Issue Date: 2013
Source: Zhao, G., Chen, X., Wang, L., Zhou, S., Feng, H., Chen, W. N. W., et al. (2013). Ultrasound assisted extraction of carbohydrates from microalgae as feedstock for yeast fermentation. Bioresource technology, 128, 337-344.
Series/Report no.: Bioresource technology
Abstract: Recently, carbohydrates biomass from microalgae is considered as a promising and inexpensive feedstock for biofeuls production by microorganism fermentation. The main obstacle of the process is microalgae pretreatment and carbohydrates extraction from algal cell. In this study, comparison of three pretreatment methods was performed and the results showed that ultrasonic assisted extraction (UAE) was very effective. The effects of four parameters (ultrasonic power, extraction time, flow rate and algal cell concentration, respectively) on extraction efficiency were also investigated. Additionally, in order to identify significant factors for glucose yield, combination of these four parameters was examined by using fractional factorial design (FFD) and the regression model was obtained. Meanwhile, the refined model was confirmed as a good fitting model via analysis of variance (ANOVA). After extraction, glucose obtained from microalgae was used as substrate for Rhodosporidium toruloides fermentation and yeast biomass was much higher than that of control culture.
URI: https://hdl.handle.net/10356/105230
http://hdl.handle.net/10220/17914
ISSN: 0960-8524
DOI: 10.1016/j.biortech.2012.10.038
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

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