Step-by-step low-cost method for purifying alpha-linolenic acid

The invention discloses a step-by-step low-cost method for purifying alpha-linolenic acid. The step-by-step low-cost method comprises the following steps: (1) cultivating a new flax strain with high alpha-linolenic acid content; (2) peeling flaxseeds to improve the alpha-linolenic acid content of fl...

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Bibliographische Detailangaben
Hauptverfasser:	LIU LIANSHENG, HAN HAIWANG, HAO JIAN, HU XIAOJUN, HAO WENLAI, MO OUYANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMISTRY DETERGENTS ESSENTIAL OILS FATTY ACIDS THEREFROM FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES METALLURGY ORGANIC CHEMISTRY PERFUMES PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Beschreibung
Zusammenfassung:	The invention discloses a step-by-step low-cost method for purifying alpha-linolenic acid. The step-by-step low-cost method comprises the following steps: (1) cultivating a new flax strain with high alpha-linolenic acid content; (2) peeling flaxseeds to improve the alpha-linolenic acid content of flaxseed kernels; (3) preparing oil through normal-temperature hydraulic pressing; (4) purifying and clarifying the content of alpha-linolenic acid in the linseed kernel oil through a low-temperature separation method; and (5) purifying the content of alpha-linolenic acid by using a urea adduction method. An existing economical and practical method for purifying highly unsaturated fatty acid through a urea adduction method and other innovative purification methods are combined together according to the reasonable process sequence and economical efficiency, the alpha-ethyl linolenate with the linolenic acid content reaching 91.7% is finally obtained, and the comprehensive yield is 8.34%; compared with an existing alph