Supercritical CO2 extraction of bilberry (Vaccinium myrtillus L.) seed oil: Fatty acid composition and antioxidant activity

Graziele Gustinelli; Lovisa Eliasson; Cecilia Svelander; Marie Alminger; Lilia Ahrné

doi:10.1016/j.supflu.2018.01.002

Supercritical CO₂ extraction of bilberry (Vaccinium myrtillus L.) seed oil: Fatty acid composition and antioxidant activity

Graziele Gustinelli^*, Lovisa Eliasson, Cecilia Svelander, Marie Alminger, Lilia Ahrné

^*Corresponding author af dette arbejde

29 Citationer (Scopus)

Abstract

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.

Originalsprog	Engelsk
Tidsskrift	Journal of Supercritical Fluids
Vol/bind	135
Sider (fra-til)	91-97
Antal sider	7
ISSN	0896-8446
DOI	https://doi.org/10.1016/j.supflu.2018.01.002
Status	Udgivet - 2018
Udgivet eksternt	Ja

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10.1016/j.supflu.2018.01.002

Citationsformater

@article{32059c76549e49a4befbd1620d552e74,

title = "Supercritical CO2 extraction of bilberry (Vaccinium myrtillus L.) seed oil: Fatty acid composition and antioxidant activity",

abstract = "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.",

keywords = "Antioxidant activity, Bilberry seeds, Radical scavenging, Supercritical CO extraction, Vitamin E",

author = "Graziele Gustinelli and Lovisa Eliasson and Cecilia Svelander and Marie Alminger and Lilia Ahrn{\'e}",

year = "2018",

doi = "10.1016/j.supflu.2018.01.002",

language = "English",

volume = "135",

pages = "91--97",

journal = "Journal of Supercritical Fluids",

issn = "0896-8446",

publisher = "Elsevier",

}

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

SN - 0896-8446

VL - 135

SP - 91

EP - 97

JO - Journal of Supercritical Fluids

JF - Journal of Supercritical Fluids