| Title | Carotenoid Recovery from Tomato Processing By-Products through Green Chemistry |
|---|---|
| ID_Doc | 28050 |
| Authors | Szabo, K; Teleky, BE; Ranga, F; Roman, I; Khaoula, H; Boudaya, E; Ben Ltaief, A; Aouani, W; Thiamrat, M; Vodnar, DC |
| Title | Carotenoid Recovery from Tomato Processing By-Products through Green Chemistry |
| Year | 2022 |
| Published | Molecules, 27.0, 12 |
| Abstract | The recovery of bioactive compounds from agro-industry-derived by-products sustains circular economy principles by encouraging maximized recycling and minimized waste. Tomato processing by-products are abundant in carotenoids, which have several health-promoting properties, and their reintegration into functional food products represents a major interest for scientists and manufacturers. In the present study, carotenoids were recovered from tomato processing by-products based on the principles of green chemistry by using generally recognized as safe (GRAS) solvents, freeze-drying as pretreatment, and ultrasound in the recovery procedure. Spectrophotometric measurements and HPLC were used to identify and quantify total and individual carotenoids from the extracts. The highest values for lycopene (1324.89 mu g/g dw) were obtained when ethyl lactate was applied as a solvent, followed by ethyl acetate with slightly smaller differences (1313.54 mu g/g dw). The extracts obtained from freeze-dried samples presented significantly lower amounts of lycopene, indicating that carotenoids are highly susceptible to degradation during lyophilization. Flaxseed, grape seed, and hempseed oils were enriched with carotenoids and their rheological measurements showed favorable viscoelastic properties, especially hempseed and flaxseed oil, with viscosity under 50 mPa center dot s. Considering the results and the economic perspective of carotenoid recovery from tomato processing by-products, ethyl acetate is suitable, sustainable, and environmentally friendly for carotenoid extraction. |
| https://www.mdpi.com/1420-3049/27/12/3771/pdf?version=1655115103 |
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