Naslov
Lycopene-rich cream obtained via high-pressure homogenization of tomato processing residues in a water-oil mixture

Autori
Jurić, Slaven ; Jurić, Marina ; Ferrari, Giovanna ; Režek Jambrak, Anet ; Donsì, Francesco

Izvornik
International journal of food science & technology (0950-5423) 56 (2021), 10; 4907-4914

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
tomato peels ; tomato seeds ; green chemistry ; functional foods ; extraction ; oil-in-water emulsion ; mechanical cell disruption

Sažetak
Tomato processing residues are still rich in bioactive compounds that may be recovered and reused, with environmental and economic benefits. This short communication discloses for the first time that the high-pressure homogenization (HPH) treatment of tomato residues in the presence of water and sunflower oil is able to promote the extraction of bioactive compounds concurrently to the formation of an O/W emulsion stabilized by the micronized residues. The mechanical disruption effect of HPH improved the mass transfer of lycopene into the oil phase, and formed fine fibrous debris, improving stabilization and visual appearance of the emulsion. Results showed a progressive increase of lycopene concentration in the cream phase up to 5 HPH passes and a concurrent reduction of its content in the pellet. Total polyphenols content and antioxidant activity in the aqueous phase gradually decreased when increasing the number of passes, suggesting their progressive transfer in the cream phase. The proposed process, which relies on a purely physical treatment and uses only water/sunflower oil as extraction media, resulted in the production of a lycopene-rich cream of potential use as a functional food ingredient.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Poljoprivreda (agronomija), Prehrambena tehnologija

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