Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10130395 | LWT - Food Science and Technology | 2018 | 36 Pages |
Abstract
Extracts rich in anthocyanin compounds were obtained from haskap berry pulp paste using supercritical carbon dioxide (scCO2) and water as co-solvent. The extraction conditions including pressure, temperature, and amount of water were further optimized by Box-Behnken design. The highest total anthocyanins (TA) yield of 52.7% was achieved at 45â¯MPa, 65â¯Â°C, 5.4â¯g water to 3.2â¯g berry pulp paste, 15â¯min static and 20â¯min dynamic time. Different combinations of water and ethanol as co-solvent did not significantly affect the TA yield. Furthermore, similar anthocyanin extraction yields were obtained in the case of the pulp paste and rehydrated freeze-dried berry pulp powder, which indicates that freeze drying pretreatment is not required prior to scCO2 extraction. Compared with conventional extraction, the use of scCO2 and water as co-solvent offered higher anthocyanin extraction efficiency (52.7% versus 38.3%) with improved antioxidant activity (89.8% versus 72.2%).
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Authors
Guangling Jiao, Azadeh Kermanshahi pour,