TY - JOUR
T1 - Sea buckthorn (Hippophae rhamnoides) oil extracted with hexane, ethanol, diethyl ether and 2-MTHF at different temperatures – An individual assessment
AU - Vilas Franquesa, Arnau
AU - Juan Godoy, Bibiana
AU - Saldo, Jordi
N1 - Publisher Copyright:
© 2022 The Authors
PY - 2022/12/1
Y1 - 2022/12/1
N2 - Sea buckthorn oil (SBO) has been individually extracted using two green solvents (2-methyltetrahydrofuran (2-MTHF) and ethanol) and two conventional solvents (hexane and diethyl ether) using accelerated solvent extraction at four different temperatures (60, 90, 120 and 150 ºC). The efficiency of the extraction was evaluated in terms of oil yield by weight difference, the quantification of α-tocopherol and β-carotene by HPLC and the evaluation of fatty acid profile by GC-FID/MS. The results were treated separately so any effect of the temperature was clearly seen for each solvent, and the fatty acid profile data was further treated jointly using a principal component analysis, as it is one of the most valued parts of sea buckthorn oil. All solvents revealed different optimal extraction temperature when in terms of oil yield; for ethanol was observed at 90 ºC (21.75%), for hexane was at 60 ºC (23.25%), for 2-MTHF was at 150 ºC (14.65%) and for diethyl ether was at 120 ºC (24.98%). The present work shows the optimal extraction temperature for SBO for each solvent studied depending on aim of the extraction.
AB - Sea buckthorn oil (SBO) has been individually extracted using two green solvents (2-methyltetrahydrofuran (2-MTHF) and ethanol) and two conventional solvents (hexane and diethyl ether) using accelerated solvent extraction at four different temperatures (60, 90, 120 and 150 ºC). The efficiency of the extraction was evaluated in terms of oil yield by weight difference, the quantification of α-tocopherol and β-carotene by HPLC and the evaluation of fatty acid profile by GC-FID/MS. The results were treated separately so any effect of the temperature was clearly seen for each solvent, and the fatty acid profile data was further treated jointly using a principal component analysis, as it is one of the most valued parts of sea buckthorn oil. All solvents revealed different optimal extraction temperature when in terms of oil yield; for ethanol was observed at 90 ºC (21.75%), for hexane was at 60 ºC (23.25%), for 2-MTHF was at 150 ºC (14.65%) and for diethyl ether was at 120 ºC (24.98%). The present work shows the optimal extraction temperature for SBO for each solvent studied depending on aim of the extraction.
KW - Fatty acid profile
KW - Green solvents
KW - Pressurized liquid extraction
KW - Sea buckthorn oil
KW - α-tocopherol
KW - β-carotene
UR - http://www.scopus.com/inward/record.url?scp=85134928334&partnerID=8YFLogxK
U2 - 10.1016/j.jfca.2022.104752
DO - 10.1016/j.jfca.2022.104752
M3 - Article
SN - 0889-1575
VL - 114
JO - Journal of Food Composition and Analysis
JF - Journal of Food Composition and Analysis
M1 - 104752
ER -