Study on Preparing Fatty Acids by Lipase Hydrolysis Waste Oil from Restaurants

Author

Wang, Changmei ; Zhou, Xiaoqing ; Zhang, Wudi ; Chen, Yubao ; Zeng, Amy ; Yin, Fang ; Li, Jianchang ; Xu, Rui ; Liu, Shiqing

Author_Institution

Key Lab. of Adv. Tech. & Preparation for Renewable Energy Mater., Yunnan Normal Univ., Kunming, China

fYear

2011

fDate

25-28 March 2011

Firstpage

1

Lastpage

3

Abstract

Used Tween-80 as emulsifler, industrial lipase as catalyst to hydrolyze waste oil from restaurants and make mixed fatty acid. We discussed the enzyme concentration, substrate concentration, temperature and time on hydrolysis. Through the experiment, we found that when we used emulsifier which contains 2% oil in the system, we could get the optimal parameter for hydrolysis of waste oil from restaurants as follows: concentration of catalyst 5% (W/W), weight ratio of oil to water 1:4 (W/W) , temperature at 40, and hydrolysis time 24h. Under these conditions, the acid value of hydrolyzed waste oil of restaurants reached 171.8 mgKOH/g.

Keywords

biofuel; catering industry; chemical industry; enzymes; oils; Tween-80; emulsifler; enzyme concentration; fatty acid; hydrolysis waste oil; industrial lipase; Biochemistry; Biofuels; Cancer; Mixers; Substrates; Temperature distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific

Conference_Location

Wuhan

ISSN

2157-4839

Print_ISBN

978-1-4244-6253-7

Type

conf

DOI

10.1109/APPEEC.2011.5748799

Filename

5748799