Method for ordinary pressure continuous extraction of grease from schizochytrium limacinum cake and equipment thereof
A Schizochytrium and extraction technology, applied in the direction of fat oil/fat production, fat production, etc., can solve the problem of large microbial oil production capacity, and achieve the effect of small solvent amount and solvent loss saving
Active Publication Date: 2016-08-24
青岛海智源生命科技有限公司 +1
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A method for ordinary pressure continuous extraction of grease from schizochytrium limacinum cake and equipment thereof are disclosed. The invention discloses a method for extracting residual grease from schizochytrium limacinum cake at ordinary pressure by using n-hexane. The method is characterized in that pelletized or puffed schizochytrium limacinum dry mycelium or oil-pressed cake which is used as a raw material undergoes continuous extraction in an n-hexane solvent by reflux and full immersion modes under ordinary pressure by the utilization of a specially-designed immersion-type extractor so as to obtain grease in the schizochytrium limacinum cake. The specially-designed immersion-type extractor is a shallow-bed type. An embedded scraper and a continuous-type tray are arranged inside the extractor. The solvent moves in the reverse direction of the feed scraper. During the whole extraction process, it can be guaranteed that the raw material is completely immersed in the solvent until extraction and slag emission are completed. By the design and the extraction technology, continuous production can be realized, extraction efficiency is improved, and extraction cost is reduced. The equipment of the invention is more excellent than existing subcritical and supercritical extraction technological equipment.
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