engleski

Sustainable waste management from wine production

Food processing generates a substantial volume of solid organic by-products. Only small amounts of these by-products are up-graded or recycled and used usually for composting or even discarded in open areas potentially causing environmental problems. Wine production byproducts, such as grape pomace, are the most abundant worldwide and have been lately often evaluated as a source of biological active compounds due to high content of polyphenolics. In the last few years, the extraction and identification of phenolic compounds from natural sources has become a major area of scientific research. Due to their complex structure, there is no universal extraction method suitable for extraction of all plant phenolic, whereby conventional extraction techniques are usually associated with high organic solvent consumption and long extraction times. One of the organic solvents replacement could be natural deep eutectic solvents (NADES) since NADES can dissolve both polar and non-polar compounds. They may be used for very efficient extraction of natural products from plants, such as polyphenols. Since NADES has high safety profile it is expected that extract obtained by NADES may be directly used in food, pharmaceutical, cosmetical and agrochemical products without the need for expensive downstream purification steps. NADES is designed solvents, so to save time and money, it should be designed rationally for polyphenolics extraction. Currently, COSMO-RS can design new solvent structures with tailored properties and thus the trial-and-error method of NADES preparation can be avoided Therefore, the aim of this stufy is to design efficient NADES for extraction of polyphenols from wine production by-products.

COSMO-RS ; green extraction ; natural deep eutectic solvents ; polyphenols

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