期刊
FOODS
卷 11, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/foods11091357
关键词
2-methyloxolane; hexane; olive pomace; polyphenols
资金
- EU [734899]
- French-ADEME project EcoXtract proteins within the framework of the PIA program
Despite the toxic nature of hexane and its negative impact on the environment, there is a growing demand for sustainable and green extraction processes. This study evaluated the potential of using 2-methyloxolane (2-MeOx) as a bio-based alternative to replace hexane in the extraction of olive pomace. The results showed that 2-MeOx can improve extraction yield and produce extracts with higher levels of phenolic compounds.
Despite its severe toxicity and negative environmental impact, hexane remain the solvent of choice for the extraction of vegetable oils. This is in contrast with the constantly growing demand for sustainable and green extraction processes. In recent years a variety of alternatives to hexane have been reported, among them 2-methyloxolane (2-MeOx), which has emerged as a promising bio-based alternative. This study evaluates the possibility of replacing hexane, in the extraction of olive pomace (OP), with 2-MeOx, both dry and saturated with water (4.5%), the latter of which is called 2-MeOx 95.5%. The three solvents have been compared in terms of extraction yield and quality, as well as the lipid and polyphenol profiles of the extracts. The work concluded that both dry 2-MeOx and 2-MeOx 95.5% can replace hexane in OP extraction, resulting in higher yields and extracts richer in phenolic compounds. This study should open the road to further semi-industrial scale investigations toward more sustainable production processes.
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