Extraction of high value products from avocado waste biomass
Extraction of high value products from avocado waste biomass
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DOI：
10.1016/j.supflu.2020.104988
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发表时间：
2020-11-01
影响因子：
3.9
通讯作者：
Matos, Henrique A.
中科院分区：
文献类型：
--
作者：
Paramos, Patricia R. S.;Granjo, Jose F. O.;Matos, Henrique A.
本文研究了以正己烷、乙醇和乙酸乙酯为溶剂的索氏萃取剂(SE)和以乙醇和乙酸乙酯为共溶剂的超临界二氧化碳(SCCO(2))从巴西和墨西哥牛油果种子和果皮中提取和回收生物活性物质的方法。此外，还测量了鳄梨种子中的脂肪酸(FAs)含量、总酚含量(TPC)和抗氧化活性(AA)。最后，用多元偏最小二乘回归(MPLSR)方法建立了SCCO(2)的动态萃取曲线，乙醇作为萃取剂的萃取率最高(14wt%)，SCCO(2)的萃取率最高(6.9wt%)。牛油果种子超临界萃取物的TPC较高，而SE的AA值较高。用于SCCO(2)提取的MPLSR模型显示，仅使用8个因素进行360次测量，平均绝对偏差低于0.5wt%。(C)2020爱思唯尔B.V.保留所有权利。
This work studies the oil extraction and recovery of bioactive compounds from Brazilian and Mexican avocado seeds and peels of Hass cultivar using Soxhlet (SE) with hexane, ethanol, and ethyl acetate as solvents; and supercritical carbon dioxide (scCO(2)) with ethanol and ethyl acetate as cosolvents. Also, the fatty acids (FAs) profile, total phenolic content (TPC), and antioxidant activity (AA) in avocado seeds measured. Finally, the dynamic extraction curves of scCO(2) were modeled with a multi-way partial least squares regression (MPLSR).The highest extraction yields were observed when ethanol is used as solvent in SE (up to 14 wt%) and as cosolvent in scCO(2) (up to 6.9 wt%). TPC was higher in SFE of avocado seeds, while higher values of AA were obtained using SE. MPLSR model obtained for the scCO(2) extraction showed an average absolute deviation below 0.5 wt% for 360 measurements using only eight factors. (C) 2020 Elsevier B.V. All rights reserved.