Low-temperature cold-pressing and bivariate continuous refining and processing method for oiltea camellia seed oil

Abstract

The invention discloses a low-temperature cold-pressing and bivariate continuous refining and processing method for oiltea camellia seed oil, which mainly comprises the following technical steps of squeezing, leaching, degumming, deacidifying, decoloring, deodorizing, winterizing, dewaxing and the like. In the method, the technology of low-temperature drying and low-temperature squeezing and the bivariate mixed decoloring technology of activated carbon and activated clay are adopted to adsorb and decolor oil, thereby preventing from generating harmful substances, such as benzopyrene, coking objects, carbide and the like, and improving the quality and the grade of the product. The method has good economic benefit and social benefit.

Description

technical field [0001] The invention relates to a processing method of edible oil, in particular to a low-temperature cold pressing and binary continuous refining processing technology of camellia oleifera seed oil, belonging to the technical field of food processing. Background technique [0002] Camellia oleifera seed oil, also known as camellia oil, tea oil, tea seed oil, is obtained from the mature seeds of Camellia oleifera or Oil-tea camellia (Oil-tea camellia) as raw material, and is obtained by oil extraction techniques such as pressing and leaching. of fatty oils. Camellia oleifera seed oil is a pure natural high-grade woody edible oil. It is of high quality, natural and healthy, and it is a treasure among oils. [0003] At present, the processing of Camellia oleifera seed oil mainly adopts pressing and leaching processes, and is refined by batch refining processing technology. The pressing process adopts open flame baking + hot-fried pressing technology. The main...

AI Technical Summary

Problems solved by technology

The pressing process adopts open flame baking + hot-fried pressing technology. The main problems of this process are: (1) The baking temperature is very high, and it is not easy to control. And decompose benzopyrene (BaP) and other substances harmful to human body

In the process of high-temperature steaming and pressing, Camellia oleifera seeds will produce a large amount of harmful properties such as benzopyrene that are harmful to the human body, and because the high-temperature time is too long, a large amount of pigment substances will be produced during this high-temperature process, making the color of the oil too dark , taste bitter

(3) Since the whole production process is under high temperature, the rich nutrients in Camellia oleifera seed oil are greatly damaged

The main problems existing in the existing refining process: (1) because this process adopts a batch refining process, after each process is completed, it needs to be pumped into the next process by the staff with a pump, while the batch refining process uses The oil refining pans are all open pans, the heat loss is relatively large, and the oil will consume a lot of heat during the transfer process. This process consumes a lot of electricity and coal, and the labor intensity of the staff is also relatively high.

(2) Because the process adopts activated clay decolorization in the decolorization process, because the adsorption capacity of activated clay to benzopyrene is relatively poor, it is easy to produce harmful substances such as benzopyrene exceeding the standard, and the quality of the product is unstable.

(3) Due to the lack of dewaxing process in the refining process, the product oil refined from leached crude oil has a higher freezing point, which affects the quality of the product oil

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