Extraction of cottonseed oil using subcritical water technology

Abstract

This work represents the extraction of cottonseed oil using subcritical water. The extraction efficiencies of different range temperatures (180-280 C), having mean particle size range from 3 mm to less than 0.5 mm, water:seed ratios of 0.5:1, 1:1, and 2:1, and extraction times in the range of 5-60 min were all investigated. The composition of the extracted oil, using the subcritical water, was analyzed by gas-liquid chromatography and compared with that extracted using traditional hexane extraction. The results showed that the optimum temperature, mean particle size, water:seed ratio, and extraction time were 270 C, \0.5 mm, 2:1, and 30 min, respectively. In addition the extracted oil was identical to that extracted using the traditional hexane method.

The mechanism of hydrothermal hydrolysis for glycyrrhizic acid into glycyrrhetinic acid and glycyrrhetinic acid 3- O -mono-β- d -glucuronide in subcritical water

“…However, the Ea of reaction 1 was lower than that of the reaction 2; therefore, the energy needed to overcome the energy barrier was lower, indicating it was easy to attain the transition state (Abdelmoez, Abdelfatah, Tayeb, & Yoshida, 2011).…”

Kinetic and Thermodynamics studies for Castor Oil Extraction Using Subcritical Water Technology

“…Phenolphthalein indicator was used to determine the pH change during the esterification reaction 5 . The titration was carried out against an aqueous solution of 0.1 N KOH.…”

A Review on Green Trend for Oil Extraction Using Subcritical Water Technology and Biodiesel Production

“…Lately, subcritical water technology had attracted many researchers for its versatile applications in the field of environment as a green alternative process to solvent extraction 44 .…”