Hossain Mohammad B, Rawson Ashish, Aguiló-Aguayo Ingrid, Brunton Nigel P, Rai Dilip K
Department of Food Biosciences, Teagasc Food Research Centre, Ashtown, Dublin D15, Ireland.
Indian Institute of Crop Processing Technology, Thanjavur 613005, TN, India.
Molecules. 2015 May 13;20(5):8560-73. doi: 10.3390/molecules20058560.
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.
与传统固液萃取（0.981毫克/克干马铃薯皮）相比，采用加压液体萃取从马铃薯皮中回收的糖苷生物碱产量更高（1.92毫克/克干马铃薯皮）。响应面法推导得出，加压液体萃取糖苷生物碱的最佳温度和萃取溶剂（甲醇）为80℃、甲醇含量89%。采用这两个最佳加压液体萃取条件，得到的各甾体生物碱含量分别为：α-茄碱597微克/克干马铃薯皮、α-查茄碱873微克/克干马铃薯皮、茄啶374微克/克干马铃薯皮、去甲澳洲茄碱75微克/克干马铃薯皮。α-茄碱、α-查茄碱、茄啶和去甲澳洲茄碱的固液萃取相应值分别低59%、46%、40%和52%。
