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Recovery of Steroidal Alkaloids from Potato Peels Using Pressurized Liquid Extraction
Rawson, Ashish Aguilo-Aguayo, Ingrid Brunton, Nigel Hossain, Mohammad Billal Rai, Dilip K.
Rawson, Ashish
Aguilo-Aguayo, Ingrid
Brunton, Nigel
Hossain, Mohammad Billal
Rai, Dilip K.
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2015-05-13
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Hossain, M.B.; Rawson, A.; Aguiló-Aguayo, I.; Brunton, N.P.; Rai, D.K. Recovery of Steroidal Alkaloids from Potato Peels Using Pressurized Liquid Extraction. Molecules 2015, 20, 8560-8573. doi: https://dx.doi.org/10.3390/molecules20058560
Abstract
A higher yield of glycoalkaloids was recovered from potato peels using pressurized liquid extraction (1.92 mg/g dried potato peels) compared to conventional solid–liquid extraction (0.981 mg/g dried potato peels). Response surface methodology deduced the optimal temperature and extracting solvent (methanol) for the pressurized liquid extraction (PLE) of glycoalkaloids as 80 °C in 89% methanol. Using these two optimum PLE conditions, levels of individual steroidal alkaloids obtained were of 597, 873, 374 and 75 µg/g dried potato peel for α-solanine, α-chaconine, solanidine and demissidine respectively. Corresponding values for solid liquid extraction were 59%, 46%, 40% and 52% lower for α-solanine, α-chaconine, solanidine and demissidine respectively