Process for cold pressing tea seeds to produce oil

Abstract

The invention relates to an oil production process of tea seed oil, and particularly discloses a process for cold pressing tea seeds to produce oil, which comprises the steps such as clearing, low-temperature drying, grading, husking, separating nut and husk, smashing, refining with water, pressing and fine filtering. The steaming embryo procedure in the present cold pressing process is abandoned in the process, steaming and stir-frying in hot pressing process are also avoided, and no high temperature is produced during the entire processing procedure, so no phenomenon that grease is oxidized, polymerized and decomposed to produce peroxide and harmful substances occurs. At the same time, the present refining procedure is also abandoned by the process, so the intervention of chemical substances can be avoided, and nutrient contents and natural flavor of the grease can be effectively maintained. The measures such as grading and refining with water procedures are added in the process, so the oil yield is higher.

Description

technical field [0001] The invention relates to an oil-making process of camellia oleifera seed oil, in particular to a cold-pressing oil-making process of camellia oleifera seeds. Background technique [0002] Camellia oleifera is one of the four largest woody edible oil tree species in the world. Camellia oleifera is full of treasures: Camellia oil is rich in nutrients, low in cholesterol, resistant to storage, rich in unsaturated fatty acids, and the content of oleic acid and linoleic acid is as high as 90%. Long-term Eating it has the effect of improving eyesight and invigorating the stomach, and is a high-quality woody edible oil. [0003] At present, there are two production processes of camellia oleifera seed oil, low-temperature pressing and high-temperature pressing, namely the so-called cold pressing and hot pressing. [0004] Wherein, the low-temperature pressing production process is: Camellia oleifera seeds→drying→hulling and separation→crushing→steaming blanks...

AI Technical Summary

Problems solved by technology

[0009] However, if the proportion of camellia oleifera seed husks (husks in the kernels) contained in the camellia oleifera seed kernel is too low, the press chamber of the oil press is easily blocked by the pressed material, and the pressing is difficult to carry out; Without a skeleton, the material layer is easily compacted and the solvent penetration is difficult, resulting in high residual oil in the meal and high solvent content in the wet meal, which affects the extraction efficiency and solvent consumption

At the same time, if the proportion of camellia oleifera seed husk (hull in the kernel) contained in the camellia oleifera seed kernel is too high, the friction between the hard husk and the press chamber of the press will intensify, and the temperature of the cake from the press will exceed 60°C, which will affect the quality of the oil.

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