Open AccessOptimization of parameters affecting dealcoholization of anthocyanin extract by liquid emulsion membrane using response surface methodology
Author(s) -
Prakash Binnal,
S. Rajashekhara,
Jagadish H. Patil
Publication year - 2021
Publication title -
journal of applied research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 30
ISSN - 2448-6736
DOI - 10.22201/icat.24486736e.2021.19.6.1135
Subject(s) - response surface methodology , central composite design , lecithin , pulmonary surfactant , emulsion , chromatography , anthocyanin , solvent , chemistry , extraction (chemistry) , membrane , mathematics , materials science , food science , biochemistry
Colour is one of most important properties of foods and beverages and is a basis for their identification and acceptability. Anthocyanin from red cabbage was extracted using 50 % ethanol. The extract was dealcoholized by Liquid Emlusion Membrane technology (LEM). Parafin oil was used as a solvent, lecithin was used as a surfactant and water as stripping medium. Response surface methodology (RSM) was used to design the experiments. A total of 30 experiments were conducted in accordance with central composite rotatable design. Design expert 8 was used to design the experiments. % extraction of alcohol in each case was determined. A suitable model was fitted to experimental data by regression analysis (R-square=0.93). Response surface plot were analysed and optimum parameters for dealcoholization were found to be speed=365.44 rpm, time=18.62 min, concentration of lecithin=2.84 %, feed to emulsion ratio=3.05. A maximum dealcoholisation of 18.63 % was observed under these conditions