Proceedings of the International Conference on Electronics, Mechanics, Culture and Medicine

Preparation of Soybean Oil Corn Starch Ester by Using Immobilized Lipase

Authors
Zhengyang Wang, Jiaying Xin, Luoyun Zheng, Quanhui Li, Lirui Sun
Corresponding Author
Zhengyang Wang
Available Online February 2016.
DOI
https://doi.org/10.2991/emcm-15.2016.25How to use a DOI?
Keywords
Soybean oil corn starch ester Novozym 435 lipase Solvent-free system; Substituting degree
Abstract
The soybean oil starch ester was synthesized by using Novozym435 lipase as biocatalyst, corn starch and soybean oil as substrate in solvent-free system. In order to improve the reaction activity of starch, the corn starch was pretreated using NaOH/Urea/H2O solution. The optimum pretreatment reaction conditions of enzymatic esterification of soybean oil with pretreatment starch were water activity<0.01, reaction temperature was 60 , reaction time was 30h, the ratio of soybean oil to pretreatment starch was 6 (w/w) and the amount of lipase was 7%. Under this condition the degree of substitute of soybean oil with pretreatment starch was 0.0302. The solubility, emulsifying and freeze-thawing stability of soybean oil starch ester increased with the increase of its degree of substitute, but the transparency of soybean oil starch ester decreased with its degree of substitute. The transparency of soybean oil starch ester was improved in the presence of sucrose, but decreased in the presence of sodium chloride and citric acid.
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Proceedings
International Conference on Electronics, Mechanics, Culture and Medicine
Part of series
Advances in Computer Science Research
Publication Date
February 2016
ISBN
978-94-6252-163-6
ISSN
2352-538X
DOI
https://doi.org/10.2991/emcm-15.2016.25How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Zhengyang Wang
AU  - Jiaying Xin
AU  - Luoyun Zheng
AU  - Quanhui Li
AU  - Lirui Sun
PY  - 2016/02
DA  - 2016/02
TI  - Preparation of Soybean Oil Corn Starch Ester by Using Immobilized Lipase
BT  - International Conference on Electronics, Mechanics, Culture and Medicine
PB  - Atlantis Press
SP  - 130
EP  - 135
SN  - 2352-538X
UR  - https://doi.org/10.2991/emcm-15.2016.25
DO  - https://doi.org/10.2991/emcm-15.2016.25
ID  - Wang2016/02
ER  -