Recovery and bio-potentialities of astaxanthin-rich oil from shrimp ((Peneanus monodon) waste and mackerel (Scomberomous niphonius) skin using concurrent supercritical CO2 extraction

In the present study, astaxanthin (ASX)-enriched oil extracted from Tiger shrimp waste, Peneaus monodon, and Japanese Spanish mackerel, Scomberomous niphonius, skin in concurrent extraction by supercritical carbon dioxide and quality properties of the oil was evaluated. The extraction condition was optimized by response surface methodology to obtain the highest ASX content. There was a close agreement between the ASX content predicted by the model (46.08 mu g/g oil) and the mean actual experimental value (48.20 0.15 mu g/g of oil). The global yield of the extraction was 9.27 %, obtaining 47.13 % oil recovery in 2 h of extraction at 27 g/min flow rate of CO2. The oils showed high bio-potential activities with high antioxidant activities and oxidative stability. Moreover, the concurrently extracted oil showed a good balance among saturated, monounsaturated, and polyunsaturated fatty acids. Therefore, the present study revealed the green extraction of special oil from two fish-processing waste materials with a prospective use in cosmetics and food industry. (C) 2020 Elsevier B.V. All rights reserved.