TY - JOUR
T1 - Supercritical CO2 extraction of bilberry (Vaccinium myrtillus L.) seed oil
T2 - Fatty acid composition and antioxidant activity
AU - Gustinelli, Graziele
AU - Eliasson, Lovisa
AU - Svelander, Cecilia
AU - Alminger, Marie
AU - Ahrné, Lilia
PY - 2018
Y1 - 2018
N2 - Bilberry seed oils extracted with supercritical carbon dioxide (SC-CO2) for 80 min at 20, 35, and 50 MPa and at 40° 50° and 60 °C were evaluated to compare the yield, composition, and antioxidant recovery. Analyses of fatty acids, free radical scavenging activity (DPPH), vitamin E and peroxide contents revealed that yield, vitamin E, efficient concentration (EC50), and Peroxide value (PV) varied significantly among the obtained bilberry seed oils, whereas the fatty acid compositions were similar. The oil extracted at 20 MPa and 60 °C had the best recovery of vitamin E and the lowest EC50 and PV. The high levels of vitamin E and polyunsaturated fatty acids, as well as the low ω6/ω3 ratios (<1) and the low PVs in all the extracts suggest bilberry seed oil is a valuable source of bioactive compounds and high potential for use of bilberry by-product extracts in added value foods and nutraceutical products.
AB - Bilberry seed oils extracted with supercritical carbon dioxide (SC-CO2) for 80 min at 20, 35, and 50 MPa and at 40° 50° and 60 °C were evaluated to compare the yield, composition, and antioxidant recovery. Analyses of fatty acids, free radical scavenging activity (DPPH), vitamin E and peroxide contents revealed that yield, vitamin E, efficient concentration (EC50), and Peroxide value (PV) varied significantly among the obtained bilberry seed oils, whereas the fatty acid compositions were similar. The oil extracted at 20 MPa and 60 °C had the best recovery of vitamin E and the lowest EC50 and PV. The high levels of vitamin E and polyunsaturated fatty acids, as well as the low ω6/ω3 ratios (<1) and the low PVs in all the extracts suggest bilberry seed oil is a valuable source of bioactive compounds and high potential for use of bilberry by-product extracts in added value foods and nutraceutical products.
KW - Antioxidant activity
KW - Bilberry seeds
KW - Radical scavenging
KW - Supercritical CO extraction
KW - Vitamin E
U2 - 10.1016/j.supflu.2018.01.002
DO - 10.1016/j.supflu.2018.01.002
M3 - Journal article
AN - SCOPUS:85044536241
VL - 135
SP - 91
EP - 97
JO - Journal of Supercritical Fluids
JF - Journal of Supercritical Fluids
SN - 0896-8446
ER -