METHOD OF PREPARING CITRUS FRUITS BEFORE JUICE EXTRACTION Russian patent published in 2001 - IPC

FIELD: technology of juice production. SUBSTANCE: on preparing citrus fruits after extraction from them bitter substances by nonpolar liquefied gas, they are treated by aqueous solution of a substance with general formula R₁-[NH_n-R_4-n],, where R₁ is acid residue of eicosapentaenoic acid; n = 0-: -3; R is alkyl in amount of 5•10^-1-1•10⁴ mg/t. After it, vegetable raw material is aged for 2-5 h and impregnated by nonpolar liquefied gas under pressure higher atmospheric, and then pressure is relieved up to atmospheric with a speed providing fruits freezing. EFFECT: increased juice stability to microbial spoilage. 2 ex