Method for preparing Camellia oleifera seed oil by near-solid enzymatic hydrolysis combined with physical pressing

Abstract

The invention discloses a method used for preparing camellia seed oil via nearly solid state enzymatic hydrolysis combined with physical squeezing. According to the method, camellia seed harvesting, drying, fruit shell removing, seed shell removing, magnetic separating, oil extracting, and refining are adopted, and nearly soil state enzymatic hydrolysis is combined with physical squeezing so as to extract oil. The method comprises following steps: 1, nearly solid state enzymatic hydrolysis, wherein camellia seed is smashed to be particles of 10 to 20 meshes, an solid enzyme is added for full mixing of camellia seed, constant temperature stirring enzymatic hydrolysis is carried out, constant temperature stirring enzyme hydrolysis is carried out, in stirring process, clear water is sprayed onto the surface of the camellia seed, water content of the camellia seed is controlled to be lower than 18%, after enzyme hydrolysis, the camellia seed is dried until water content ranges from 10 to 13%; and 2, physical squeezing, wherein after nearly solid state enzymatic hydrolysis, the obtained camellia seed is subjected to squeezing. According to the method, early solid state enzymatic hydrolysis is adopted, and biological enzyme technology is combined with physical squeezing, so that subsequent squeezing oil yield is increased, and the quality of obtained cold pressed camellia seed oil is excellent.

Description

technical field [0001] The invention belongs to the technical field of oil processing, and in particular relates to a method for preparing camellia oleifera seed oil by combining near-solid-state enzymatic hydrolysis with physical pressing. Background technique [0002] Camellia oil is obtained from the seeds of Camellia oleifera, also known as tea seed oil and camellia oil. It is a unique woody oil in my country. It has a long history of use and is mainly distributed in Hunan, Jiangxi, Guangxi, Guangdong, Fujian, Zhejiang and other southern regions. provinces. Unsaturated fatty acids in camellia oil are as high as 90%, of which oleic acid is 75% to 83%, linoleic acid is 7.4% to 13%, and it also contains tea polyphenols, camellia glycosides, squalene and various vitamins, known as " Treasures in Oil". Therefore, camellia oil is a recommended health-care nutritional oil beneficial to human health and suitable for long-term consumption. In addition, tea oil is a natural gree...

AI Technical Summary

Problems solved by technology

The process of preparing camellia oil by aqueous enzymatic method generally includes steps such as cleaning and shelling, crushing and grinding, conditioning and extraction, demulsification and separation, and post-treatment. After the oil and water are mixed with each other, it needs to be demulsified to separate the oil and water, which requires strict process parameters, and the existing supporting equipment is immature, and the actual production application is less, which is not as common as the traditional pressing method.

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