Open AccessMonoglyceride and monoglyceride derivatives from glycerol generated in catfish based biodiesel production process
Author(s) -
Bùi Thị Bửu Huê,
Luong Thi Phuong Hong,
Nguyen Thi Ngoc Phuoc,
Phan Tien,
Takeo Matsubara,
Yoshiak Kitaya,
Ryosuke Endo
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/620/1/012012
Subject(s) - glycerol , monoglyceride , biodiesel , biodiesel production , chemistry , oleic acid , organic chemistry , catalysis , diacetyl , acetic acid , yield (engineering) , phosphoric acid , fatty acid , biochemistry , materials science , metallurgy
Glycerol is a major byproduct in the biodiesel manufacturing process which causes environmental problem since glycerol cannot be released without treatment. In this study, crude glycerol was refined into a pure form by using phosphoric acid. Esterification of the purified glycerol with oleic acid afforded glycerol monooleate in 43% yield using p-toluenesulfonic acid as a catalyst. The obtained glycerol monooleate was then allowed to react with lactic acid, acetic acid or diacetyl tartaric acid to provide the corresponding lactylated, acetylated or diacetyl tartarylated glycerol monooleate, respectively, in reasonable yields. These ester derivatives of monoglycerides have been known to be the most commonly used food surfactants.