CPC B65D 65/466 (2013.01) [B01D 11/0288 (2013.01); B65D 81/28 (2013.01); B01D 11/0211 (2013.01); B32B 2264/00 (2013.01); B32B 2307/7145 (2013.01); B32B 2439/70 (2013.01); Y02E 50/10 (2013.01); Y10T 428/1352 (2015.01)] | 20 Claims |
1. A method for extracting active compounds from a food process waste, the method comprising:
(a) providing a feed slurry comprising (i) a liquid medium comprising water and (ii) a solid food process waste dispersed in the liquid medium, the solid food process waste comprising an active compound selected from the group consisting of polyphenols, flavonoids, o-diphenols, anthocyanins, phenolic acids, and combinations thereof;
(b) subjecting the feed slurry to a temperature above 100° C. at a pressure sufficiently high to prevent boiling of the liquid medium for a time sufficient to extract the active compound from the solid food process waste and into the liquid medium; and
(c) separating solid food process waste from the liquid medium containing the active compound, thereby forming an extract comprising the liquid medium and the active compound dissolved therein, wherein the extract has a total polyphenolic recovery in a range of 0.2 wt. % to 8 wt. %, expressed on a basis of gallic acid equivalents (GAE) per dry weight of original solid food process waste.
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