New by-products rich in bioactive substances from the olive oil mill processing.
New by-products rich in bioactive substances from the olive oil mill processing.
复制标题
来自橄榄油厂加工的富含生物活性物质的新副产品。
DOI：
10.1002/jsfa.8460
复制
发表时间：
2018
影响因子：
4.1
通讯作者：
M. Brenes
中科院分区：
文献类型：
--
作者：
C. Romero;E. Medina;M. A. Mateo;M. Brenes
背景
BACKGROUND
Olive oil extraction generates a large amount of residue consisting mainly of the pomace and leaves when using a two-phase centrifugation system. The aim of this study was to assess the content of phenolic and triterpene compounds in the by-products produced in Spanish olive oil mills.
RESULTS
Olive pomace had concentrations of phenolic and triterpene substances lower than 2 and 3 g kg-1 , respectively. The leaves contained a high concentration of these substances, although those collected from ground-picked olives had lost most of their phenolic compounds. Moreover, the sediment from the bottom of the olive oil storage tanks did not have a significant amount of these substances. By contrast, a new by-product called olive pomace skin has been revealed as a very rich source of triterpenic acids, the content of which can reach up to 120 g kg-1 in this waste product, maslinic acid comprising around 70% of total triterpenics.
CONCLUSION
Among the by-products generated during extraction of olive oil, olive pomace skin has been discovered to be a very rich source of triterpenic acids, which can reach up to 120 g kg-1 of the waste. These results will contribute to the valorization of olive oil by-products. © 2017 Society of Chemical Industry.