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Peanut protein and fat enzyme extracting process

An enzymatic extraction and protein technology, which is applied in the field of peanut protein, can solve the problems of high oil content, large emulsified oil content, and inability to release oil in peanut protein powder, and achieves improved oil and protein yield, less adsorption, and oil content. small effect

Inactive Publication Date: 2003-05-28
厦门中盛粮油集团有限公司
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Problems solved by technology

Liu Zhiqiang et al. disclosed in the "Journal of China Cereals and Oils" No. 1, 1999, the peanut hydroenzymatic protein extraction and oil production research belongs to this method. , although the yield of protein and oil is higher than that of the traditional water preparation method, some of the oil wrapped in the protein cannot be released, and the macromolecular protein re-adsorbs the oil due to emulsification and gelation, resulting in the finished peanut protein The content of powder and oil is high, easy to oxidize and deteriorate; and the content of emulsified oil in the process is relatively large, so it is difficult to separate

Method used

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  • Peanut protein and fat enzyme extracting process
  • Peanut protein and fat enzyme extracting process

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Embodiment

[0011] Embodiment: First, the raw materials are pretreated: select peanuts without mildew, remove various impurities in the peanuts, peel the peanuts, and remove the red coat. Take the red-coated peanut kernels and dry-mill them with a superfine mill or calender, and the milling particle size is controlled at about 10 μm.

[0012] Preparation of enzyme preparation: the enzyme preparation, pectinase is from Aspergillus sp., neutral protease is from Bacillus subtilis (B.subtilis), and cellulase is from Trichodermaviride. It is produced by solid state or liquid submerged fermentation method, and the pure enzyme is obtained after the enzyme prepared by fermentation is purified.

[0013] Enzymolysis reaction: Put the dry-milled raw materials into a vertical leaching tank, add water for soaking according to a solid-liquid ratio of 1:3, adjust the pH to 6.8 with edible soda ash, and keep the material temperature at about 49°C, first add cellulase (add Enzyme amount 100U / g oil plant)...

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Abstract

A process for extracting protein and oil from peanut by enzyme method includes pre-treating raw material, removing shell, peeling, grinding, enzymolizing with cellulase, pectinase, or neutral proteinase, leaching in water, and separating protein and oil. Its advantages are high yield, and low content of oil in protein powder.

Description

technical field [0001] The invention belongs to the vegetable oil and vegetable protein extraction process in agricultural product processing, and is suitable for extracting peanut oil and peanut protein with low denaturation and low oil content from peanuts. Background technique [0002] At present, the commonly used methods for producing oil from peanuts in the vegetable oil industry include pressing to make oil, pre-pressing and leaching to make oil, and water preparation to make oil. Pressing oil production and pre-pressing leaching oil production use mechanical methods to destroy cell walls, and use moist heat to destroy cell membranes and denature proteins, so that oils can be squeezed or extracted smoothly, but protein denaturation is serious, some nutrients and physiological substances Active substances are also destroyed. The above two reasons greatly limit the development and utilization of peanut protein. [0003] The traditional water preparation method uses me...

Claims

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Application Information

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IPC IPC(8): A23J1/14C11B1/00
Inventor 刘志强
Owner 厦门中盛粮油集团有限公司
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