Selective extraction of polar lipids of mango kernel using Supercritical Carbon dioxide (SC–CO2) extraction: Process optimization of extract yield/phosphorous content and economic evaluation. (December 2020)

• Record Type: Journal Article
• Authors: Kayathi, Aparna; Chakrabarti, Prodosh Prasad; Bonfim-Rocha, Lucas; Cardozo-Filho, Lucio; Jegatheesan, Veeriah
• Is Part Of: Chemosphere. Volume 260(2020)
• Publication Date: 2020-12
• Subjects: Box-behnken design -- Economic evaluation -- Fatty acids -- Mango kernel -- Polar lipids -- Supercritical carbondioxide; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2020.127639
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: Lipids are biomolecules extracted from plant sources and plant residues and have a beneficial role in various food, nutrition and medical applications. Supercritical carbon-dioxide as an advanced high-pressure technology which increases the productivity and has negligible environmental impact is employed for the selective extraction of polar lipids from the lipid matrix in mango kernel for the first time. The process parameters affecting the extraction such as pressure, temperature and the flow rate of CO2 are ranged in the intervals of 30–50 MPa, 40–60 °C and 10–30 g min -1, respectively. Optimization using Box Behnken design obtained the highest yield of 3.38% at 40 °C, 50 MPa and 30 g min -1 . The phosphorous content was evaluated to understand the behaviour of polar lipids extraction at higher pressures. The study showed the effect of process parameters having significant influence on polarity and solvating capacity of CO2 which enabled for the extraction of polar lipids adding value to the mango kernel converting waste into valuable industrial products. The economic evaluation estimates the return on investment of a plant processing 3000 tons of mango kernel per year to account net present value (NPV) almost five times higher than the investment expenses and the payback period is under 4 years. Graphical abstract: Image 1 Highlights: Polar lipids were extracted from mango kernel using SC-CO2 . Highest yield of extract was 3.38% at 40 °C, 50 MPa and 30 gmin -1 . Fatty acid composition (FAC) of extract was matched with polar lipid FAC. Payback period of a plant processing 3000 tons of mango kernel is under 4 years. Mango kernel as waste was converted to high-valued produc.