The ability of Aspergillus niger strains to support citric acid production using solid-state fermentation agricultural processing coproducts was examined in this review. Citric has been shown have a number commercial applications the food and beverage industries. A. capable elevated are known contain genetic mutations that stimulate overproduction organic likely involving cycle reactions. previ...

Experimental data on the content of biologically valuable components in grape pomace are presented. The presence organic acids was revealed an amount from 33.35 g/kg (Saperavi) to 108.2 (Rebo). main acid is tartaric. Phenolic compounds have been identified: anthocyanins, flavones, flavan-3-ols, oxycinnamic and hydroxybenzoic acids, procyanidins. anthocyanins found 3-O-glycosides malvidin, petun...