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Extraction method for lacquer seed oil

An extraction method and technology of lacquer seeds, applied in the field of vegetable oil extraction, can solve the problems of deteriorating production environment, polluting air, complicated process, etc., and achieve the effect of improving extraction rate, high yield, and simple operation method

Active Publication Date: 2014-11-05
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is complex in process, especially in the extraction process, solvents such as n-hexane or light gasoline will be used, and there will be more or less escape during the production process, thereby polluting the air and deteriorating the production environment.

Method used

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Effect test

Embodiment

[0030] 1. Screening to remove impurities, drying

[0031] Pick fresh lacquer seeds that are free from diseases and insect pests, remove branches and leaves and other impurities, and then rinse them with clean water. After draining the water, put the lacquer seeds in the sun to dry, and must not be dried at a temperature exceeding 60°C. Fresh lacquer seeds should be dried until the moisture content is less than 8%, otherwise they are prone to mildew and difficult to preserve.

[0032] 2. crush

[0033] Select the dried mature lacquer seeds, and then crush them under the condition of not higher than 20°C. The crushing speed of the pulverizer is 1500-2000rpm. The product is screened with a 20-30 mesh screen. Therefore, when crushing in summer, the temperature should be well controlled. Because of the high temperature in summer and the heat generated by crushing, the wax may dissolve, so that the separation effect cannot be achieved. From the perspective of energy saving, su...

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Abstract

The invention provides an extraction method for lacquer seed oil. The method comprises the following steps: 1) drying fresh lacquer seeds after screening and impurity removal of the lacquer seeds; 2) crushing the dried lacquer seeds at a temperature of no more than 20 DEG C; 3) soaking the crushed lacquer seeds in water, carrying out separation after stirring so as to obtain kernels of the lacquer seeds sinking to the bottom of water and lacquer seed peel and pulp floating on the upper part of water; 4) collecting the separated kernels of the lacquer seeds and refrigerating and crushing the kernels so as to obtain crushed lacquer seed kernels; 5) stewing the crushed lacquer seed kernels at a temperature of from 100 to 102 DEG C; and 6) squeezing and stewed crushed lacquer seed kernels and carrying out ultrasonic stirring and decolouring on a lacquer seed oil solution obtained after squeezing so as to obtain a finished product. The extraction method for lacquer seed oil provided in the invention has the advantages of a simple and environment-friendly process, a high extraction rate and no need for chemical solvents in the process of extraction and is beneficial for industrial utilization of lacquer seeds.

Description

technical field [0001] The invention relates to a method for extracting vegetable oil, in particular to a method for extracting lacquer seed oil. technical background [0002] Sumac is one of the important traditional economic forests in my country, with a long history of cultivation and rich variety resources. The lacquer tree not only secretes raw lacquer, but also the fruit of the lacquer tree, the lacquer seed, is rich in oil, with a crude fat content of 45-55%. The size of lacquer seeds is similar to that of soybeans, and they are harvested in September-October every autumn. The lacquer seeds are divided into 3 layers, the exocarp layer and the mesocarp layer are waxy layers, which can extract lacquer wax, and the inner core is a seed, which can extract lacquer seed oil. Lacquer seed oil is a dry vegetable oil, the main components are unsaturated fatty acids such as oleic acid, linoleic acid, linolenic acid, etc. It is an excellent edible oil, health oil and tradition...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/06C11B1/04C11B3/00
Inventor 王森
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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