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Ultrasonic-assisted extraction method for tung oil

An auxiliary extraction and ultrasonic technology, which is applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problems of no application of ultrasonic waves, mature and standardized technology for extracting tung oil, and achieve bright color, less impurities, and low extraction temperature Effect

Inactive Publication Date: 2010-11-24
WUHAN BOTANICAL GARDEN CHINESE ACAD OF SCI
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Problems solved by technology

[0004] Ultrasonic extraction technology has been applied in the preparation of vegetable oils, but so far, there is no mature and standardized technology for ultrasonic extraction of tung oil

Method used

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  • Ultrasonic-assisted extraction method for tung oil

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Embodiment Construction

[0028] The following is a detailed description in conjunction with the embodiments:

[0029] 1. Experiment of extracting tung oil

[0030] ①Select mature Tung tree fruits and get 6.04g Tung tree seeds by removing the husk and seed coat;

[0031] ② Dry the Tung tree seeds in a drying box at 120°C for 1.5 to 2 hours. The quality difference before and after drying is ±0.5%. After cooling, crushed to obtain Tung oil seed powder;

[0032] ③Mix the tung oil seed powder and ethyl acetate at a ratio of 1g:10ml and place them in a triangular flask. After sealing, place them at 40°C and continue to act on ultrasonic waves for 1.5 hours; filter the mixture with suction to remove the solid residue oil dregs, and collect the filtrate;

[0033] ④ Carry out the oil meal once according to step ③, and combine the filtrate obtained with step ③;

[0034] ⑤ The filtrate was distilled under reduced pressure through a rotary evaporator at 40° C. and a negative pressure of 0.06-0.08 Mp to obtain 3.92 g of tun...

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Abstract

The invention discloses an ultrasonic-assisted extraction method for tung oil, and relates to a method for extracting the tung oil. The method comprises the following steps of: (1) preparing tung tree seeds; (2) crushing the tung tree seeds; (3) performing ultrasonic-assisted extraction; (4) processing oil cake once according to the step (3) to obtain filtrate and combining the filtrate and the filtrate obtained in the step (3); and (5) performing reduced pressure distillation on the tung oil. The method has a simple process and can rapidly and efficiently extract the tung oil from the oil tree fruits in an energy saving way, and the obtained tung oil has the advantages of high yield, bright color and high stability, so the method solves the problems of low efficiency and energy consumption of deep processing technology, dark color of the tung oil, unstable properties, easy conversion from alpha-eleostearic acid into beta-eleostearic acid, high protein loss in the oil cake and the like in the tung tree processing of China; and the method provides guarantee for the deep processing of the tung oil, promotes the development of the tung tree industry of China and is suitable for the extraction of all tung oil.

Description

Technical field [0001] The present invention relates to a method for extracting tung oil, and in particular, to an ultrasonic-assisted method for extracting tung oil. Specifically, it involves a technology for extracting tung oil from tung fruit as raw material, which belongs to the post-harvest processing technology field of agricultural and forestry products. Tung oil is mainly used in construction, chemical industry, electronics, energy and other industries. Background technique [0002] Tung oil is a specialty product of China. my country is the largest producer and exporter of tung oil in the world and has always enjoyed a high reputation internationally. Tung oil is an excellent drying oil. Due to its special chemical structure, it is widely used in many fields such as coating manufacturing, resin synthesis, resin modification, and adhesive preparation. At present, the production method of tung oil basically follows the extraction method of edible oil, mainly pressing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10C11B1/04C11B3/12
Inventor 彭俊华陈英明陈晓东
Owner WUHAN BOTANICAL GARDEN CHINESE ACAD OF SCI
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