Extraction method of pungent litse fruit oil

Abstract

The invention discloses an extraction method of pungent litse fruit oil, which comprises the steps of (1) preparing materials, specifically, removing branches, leaves and other impurities from fresh pungent litse fruits, cleaning, and pulping; (2) soaking, specifically, soaking the pungent litse fruit pulp; (3) distillation, specifically, putting the pungent litse fruit pulp into a distillation kettle, and carrying out steam boiling distillation under elevated pressure to obtain a feed liquid A; (4) primary separation, specifically, putting the feed liquid A into an oil-water separator, standing and precipitating, and carrying out oil-water separation to obtain pungent litse fruit oil A; (5) secondary distillation separation, specifically, putting the pungent litse fruit oil A into the distillation kettle, and carrying out secondary distillation separation to obtain pungent litse fruit oil B; and (6) dehydrating, specifically, drying the obtained pungent litse fruit oil B under a vacuum condition, standing and dehydrating. The pungent litse fruit oil prepared by the method is short in oil consumption time and less in contact with air, oxidative deterioration of carbonyl compounds in the pungent litse fruit oil is effectively avoided, the quality of the pungent litse fruit oil is effectively improved, the oil yield of the pungent litse fruit oil is high, and the production energy consumption is low.

Description

technical field [0001] The invention belongs to the technical field of vegetable oil processing, and in particular relates to a method for extracting wood ginger seed oil. Background technique [0002] Wood ginger oil refers to the natural essential oil extracted from the fresh fruit of wood ginger. It is slightly yellow in color and contains a lot of citral, so it has a very strong and pleasant lemon smell, which is between floral and fruity. , can be directly used for flavoring and flavoring of confectionery, chewing gum, ice cream, beverages, sauce condiments, seasoning oils and baked goods. Studies have shown that wood ginger seed oil has strong antibacterial effects on various molds such as Aspergillus flavus, Penicillium citrinum, Mucor racemosa, and Rhizopus oryzae. After research, it was found that wood ginger seed oil has strong antioxidant activity, which is better than ginger oil and cinnamon oil. Existing extraction methods mostly use boiling or steaming, regar...

AI Technical Summary

Problems solved by technology

However, in the process of boiling and steaming, the carbonyl compounds in the wood ginger seed oil are easily oxidized when exposed to the air, which leads to the deterioration of the extracted wood ginger seed oil and affects the quality of the finished product