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     Advance Journal of Food Science and Technology

    Abstract
2015(Vol.9, Issue:8)
Article Information:

A Novel Process for the Aqueous Extraction of Linseed Oil Based on Nitrogen Protection

Yuan Gao, Ning Wang, Lirong Xu and Xiuzhu Yu
Corresponding Author:  Xiuzhu Yu 
Submitted: March ‎31, ‎2015
Accepted: April ‎28, ‎2015
Published: September 10, 2015
Abstract:
In order to prevent the oxidation of linseed oil and emulsification during extraction process, Nitrogen-protected and Salt-Assisted Aqueous Extraction (NSAE) of linseed oil was investigated in this study. Nitrogen-protected and salt-assisted were found to be the most effectively in weakening oil oxidation and improving the oil yield, respectively. The highest oil recovery of 87.55% was achieved under optimal conditions of sodium carbonate solution concentration (2 mol/L), solution-to-flour ratio (10 mL/g) and temperature (60°C). Moreover, there were no significant variations in physicochemical properties of Nitrogen-protected and Salt-assisted Aqueous Extracted Oil (NSAEO) and Salt-Assisted Aqueous Extracted Oil (SAEO), but NSAEO showed better oxidation stability. Additionally, NSAEO had a higher content of linoleic acid (18.97±0.05%), α-linolenic acid (56.48±0.12%). Therefore, NSAEO is a promising and environmental-friendly technique for oil extraction in the food industry.

Key words:  Aqueous extraction, linseed oil, nitrogen protection, response surface methodology, , ,
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Cite this Reference:
Yuan Gao, Ning Wang, Lirong Xu and Xiuzhu Yu, . A Novel Process for the Aqueous Extraction of Linseed Oil Based on Nitrogen Protection. Advance Journal of Food Science and Technology, (8): 606-613.
ISSN (Online):  2042-4876
ISSN (Print):   2042-4868
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