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Method for removing polyaromatic hydrocarbon pollutants from camellia oil

A polycyclic aromatic hydrocarbon and process method technology, which is applied in the directions of fat oil/fat production and fat production, can solve problems such as uneven drying temperature of tea seeds, shorten the production and processing cycle, reduce the processing cost, and avoid the blank making process. Effect

Inactive Publication Date: 2015-06-03
QUZHOU QUALITY & TECH SUPERVISION & INSPECTION CENT
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Problems solved by technology

During the production process of camellia oil, due to the uneven drying temperature of tea seeds, excessive local temperature in the process of seed frying, burnt pot scale produced after repeated seed frying, and heat in the inner chamber during pressing, it is inevitable that many Ring aromatic hydrocarbon pollutants, the existence of such substances seriously affect the quality and intrinsic quality of camellia oil products

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  • Method for removing polyaromatic hydrocarbon pollutants from camellia oil

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[0019] A process for removing polycyclic aromatic hydrocarbon pollutants in camellia oil. Firstly, the raw material camellia seeds are removed, and then dried at a low temperature at a temperature below 70°C, then shelled and crushed, and then extracted with supercritical carbon dioxide. Extraction is carried out in the device, and described extraction comprises the following steps:

[0020] a. Correctly connect the power cord, add water to the freezing box and heating box to 2-3cm from the box cover, and set the pressure of the carbon dioxide bottle at 5-6MPa;

[0021] b. Put the processed tea seed powder into the extraction tank, turn on the main power supply, refrigeration, and cold cycle switches in turn, start refrigeration, then set the temperature of the extractor and separator Ⅰ and Ⅱ, and start the process of rising / variable temperature operation;

[0022] c. Open the carbon dioxide intake valve, and observe that the pressure of the carbon dioxide storage tank ...

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Abstract

The invention relates to a process for removing polyaromatic hydrocarbon pollutants from camellia oil. The process is technically characterized in that the process is implemented by applying a supercritical carbon dioxide extraction and separation principle and utilizing the characteristic that supercritical carbon dioxide has special camellia seed dissolving function, namely, the process is implemented by controlling the pressure and temperature of carbon dioxide adopting a special device to affect the supercritical dissolving capacity of carbon dioxide. Because the process omits the blank preparation procedure and key polyaromatic hydrocarbon generation procedure of the traditional oil hot press process, the polyaromatic hydrocarbon supercritical carbon dioxide in the camellia oil can be controlled effectively. By adopting the method, the content of polyaromatic hydrocarbons in the camellia oil can be controlled in the range stipulated by a commission regulation (EU) No 835 / 2011. The method can be widely used for large, medium and small-sized camellia oil producing and processing enterprises to produce camellia oil.

Description

technical field [0001] The invention relates to a process method for removing polycyclic aromatic hydrocarbon pollutants in camellia oil. Background technique [0002] Camellia oil is a rare and precious woody tree oil plant unique to southern China. It is known as "Oriental olive oil" and "soft gold in oil". Its nutritional value is extremely high, and its main component is unsaturated fatty acid oil based on oleic acid and linoleic acid, and is rich in vitamin E, tea polyphenols, squalene, camellia glycosides and other nutritional and health ingredients. It is widely favored by people and occupies an important position in edible oil, so there are camellia oil processing enterprises in many areas. However, because camellia oil will produce polycyclic aromatic hydrocarbon pollutants in the process of processing, if not removed in time, it will affect product quality, endanger human health, and become a key factor in international trade barriers. Therefore, how to safely an...

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Application Information

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IPC IPC(8): C11B1/10C11B1/04
CPCC11B1/104C11B1/04
Inventor 祝华明郑睿行夏爱萍鲍利锋梅凯王键
Owner QUZHOU QUALITY & TECH SUPERVISION & INSPECTION CENT
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