EXTRACTION OF MINOR COMPOUNDS (CHLOROPHYLLS AND CAROTENOIDS) FROM YARROW–ROSE HIP MIXTURES BY TRADITIONAL VERSUS GREEN TECHNIQUE

摘要

Nowadays, various branches from food industry generate large amount ofnby-products that are often underutilized, which could have negative environmentalnimpact and increase the price of the raw material as it is not completely utilizednin the production. Mixtures of two interesting plants (yarrow and rose hip) withndifferent ratios, obtained as by-products from filter-tea factory, have beennextracted with organic solvents and with environmentally friendly technology,nsupercritical fluid extraction (SFE). In the obtained extracts, quantitative contentnof minor plant pigments (chlorophylls and carotenoids) was determined and technologiesnwere compared. Moreover, the effect of SFE parameters on yields ofnchlorophylls and carotenoids was determined. The results showed that SFE couldnbe used as a good alternative for extraction of plant pigments from Achilleanmillefolium L. and Rosa canina L. mixtures. Besides plant pigments, the obtainednextracts were rich in other nonpolar compounds from plant mixtures. Utilizationnof herbal waste provided value-added products, rich in various health benefitncompounds.