Phytochemical characterization of oil and protein fractions isolated from Japanese quince (Chaenomeles japonica) wine by-product : [data]
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Kuupäev
2023
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Kirjastaja
Estonian University of Life Sciences
Abstrakt
The wine industry generates large quantities of by-products each year. Therefore, this work aimed to isolate and
evaluate the oil and protein fractions of Japanese quince (Chaenomeles japonica, JQ) press residue, offering a
partial utilization of valuable bioactive compounds of wine industry by-products. To study the JQ oil extract
yield, composition and oxidation stability, we modified the co-solvent composition during the supercritical CO2
(SC–CO2) extraction of oil by adding different ethanol content. The remaining defatted material was used for the
isolation of proteins. The SC-CO2 extraction yielded oil rich in polyunsaturated fatty acids, tocopherols, and
phytosterols. The use of ethanol as a co-solvent increased the oil yield but did not enhance its oxidative stability
or content of antioxidants. We recovered protein isolate after removing tannins with 70% ethanol extraction in
the next step. The JQ protein isolate contained all essential amino acids. In addition to its balanced amino acid
composition, the protein isolate exhibited excellent emulsifying properties highlighting its potential as a food
additive. In conclusion, JQ wine by-products can be utilized for the extraction of oil and protein fractions which
can be used in food or cosmetic product formulation.
This research was funded by the European Union’s Horizon 2020 Research and Innovation Program project VALORTECH under grant agreement No. 810630 and the Mobilitas Pluss ERA Chair support (no. MOBEC006). European Regional Development Fund is acknowledged for providing research collaboration.
This research was funded by the European Union’s Horizon 2020 Research and Innovation Program project VALORTECH under grant agreement No. 810630 and the Mobilitas Pluss ERA Chair support (no. MOBEC006). European Regional Development Fund is acknowledged for providing research collaboration.
Kirjeldus
Märksõnad
Japanese quince, by-product valorisation, supercritical CO2 extraction, oil fraction, protein isolate, data