Preparation method of camellia oil

Abstract

The invention discloses a preparation method of camellia oil. The preparation method comprises the following steps of firstly, treating camellia seeds, and taking out the camellia seeds after camellia seed fruits are cracked; secondly, treating the camellia seeds, cleaning the camellia seeds in the first step, then drying in the air or baking on a Kang, drying in the air until the water content is 3 percent, and taking out rotten camellia seeds; thirdly, selecting straws and treating the straws: selecting the straws with better color, cleaning and drying in the air; fourthly, performing breaking treatment; fifthly, drying and preheating: placing the broken camellia seed residues in the fourth step into a preheating furnace with the temperature of 75 to 90DEG C for drying and preheating; sixthly, mixing the camellia seeds with the straws; seventhly, squeezing: starting an oil press; after the temperature of the oil press is increased to be 75 to 85DEG C, adding a mixture of the camellia seed residues treated in the sixth step and the straws for squeezing, and controlling the temperature to be 75 to 85DEG C in the squeezing process; eighthly, filtering the camellia oil; ninthly, precipitating. The preparation method disclosed by the invention has the advantages of simplicity, simplicity and convenience in operation, high efficiency and energy conservation.

Description

[0001] Technical Field The present invention relates to a method for extracting vegetable oil, in particular to a method for preparing camellia oil. Background technique [0002] Camellia oil is a unique woody oil in my country. Its fatty acid composition is similar to olive oil, the best vegetable oil recognized in the world. It has the reputation of "Oriental olive oil". Camellia oil also contains a variety of nutritional functional ingredients, which have the effects of preventing cardiovascular sclerosis, lowering blood pressure, and lowering blood fat. [0003] Most of the existing camellia oil preparation methods use drying, crushing, flaking, steaming and frying at a high temperature above 110°C, and then press the oil through high-temperature hot pressing. The processing procedures are relatively complicated, the equipment investment is large, and the production cost is high The oil color is darker and the quality is poor. It must undergo refining processes such as dea...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing camellia oil preparation methods use drying, crushing, flaking, steaming and frying at a high temperature above 110°C, and then press the oil through high-temperature hot pressing. The processing procedures are relatively complicated, the equipment investment is large, and the production cost is high The oil color is darker and the quality is poor. It must undergo refining processes such as deacidification, dehydration, decolorization, deodorization, and degreasing before it can become first-grade pressed oil. The refined oil yield is low. After refining, camellia oil loses its natural flavor. How to solve the problems of high production cost, poor quality, low oil yield, loss of natural flavor, etc. has become an important direction of research in camellia oil processing technology

The existing method for the preparation of camellia oil adopts pure physical cold pressing method to filter and remove impurities to obtain pure camellia oil. This process has problems such as low production efficiency, long cycle, deep oil color, and low purity.