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Detoxified castor meal, preparation method and application thereof

A technology for castor meal and ricin, which is applied in the field of detoxification of castor meal, can solve problems such as inability to directly feed animals, and achieves the effects of stable treatment results, avoidance of loss and damage, and high detoxification rate.

Inactive Publication Date: 2012-06-27
NANJING UNIV
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  • Application Information

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Problems solved by technology

Although castor meal has high nutritional value, it cannot be directly fed to animals without treatment because it contains toxic substances

Method used

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  • Detoxified castor meal, preparation method and application thereof

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Embodiment Construction

[0019] The technical scheme of the present invention is described below with specific examples, but protection scope of the present invention is not limited thereto:

[0020] In this batch of experiments, the castor meal after oil extraction was coarsely sieved to remove the obvious castor shell, and the obtained 160kg castor meal (tested, the content of ricinine was 0.153%) was crushed; the crushed castor The meal is put into the reactor from the feed port. According to the amount of material this time, the control cabinet parameters are set as temperature 210°C, pressure -0.09MPa, speed 30 rpm, and processing time 3.5 hours. After the treatment was completed, the following data were detected: the content of ricinine in the detoxified castor meal was 0.0038%, and 15L of ricinine aqueous solution was collected, containing 8.6g of ricinine.

[0021] The castor meal produced by the invention has a crude protein content of 38%. Compared with the soybean meal, the amino acid compo...

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Abstract

The invention belongs to the technical field of oil meal crop detoxification, and specifically to a detoxification method of castor meal. According to the present invention, the oil-extracted castor meal is adopted as a raw material, and the nontoxic castor meal is obtained through physical crushing, conditions of high temperature and negative pressure in the internal of a reactor, a mechanical stirring treatment and other processes, wherein the nontoxic castor meal can be used as a protein additive in the feed. After testing, the crude protein content in the detoxified castor meal is 36-40%; the amino acid components in the castor meal crude protein mainly comprise 20.05% of Glu, 10.97% of Arg, 9.64% of Asp, 7.81% of Leu, 2.24% of Lys, and 1.07% of Met; the animal digestible hemicellulose content is 20%; and the ricinine content is less than or equal to 0.006%. The results of the feeding experiments show that the detoxified castor meal of the present invention can be properly and safely used for pig feeds, and aquatic feeds of loach, rice field eel and the like.

Description

1. Technical field [0001] The invention belongs to the technical field of detoxification of oil crop cake, in particular to a method for detoxification of castor meal. [0002] 2. Background technology [0003] Castor is a plant of the genus Castor in the family Euphorbiaceae. Its economic value is high, castor bean contains about 50% castor oil, and castor oil is rich in ricinoleic acid, which is 12-hydroxyoctadecenoic acid glyceride, and its content reaches about 90%. Recycled chemical raw materials. The residue left after the castor bean oil is extracted is called castor meal. Castor meal is rich in protein, and the crude protein content is about 36% to 40%. Its amino acid composition is different from that of soybean meal. The combination of the two can achieve the complementary effect of amino acids. Although castor meal has high nutritional value, it cannot be directly fed to animals without treatment because it contains toxic substances. As a new type of protein ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/14
CPCY02P60/87
Inventor 钦佩袁亚光张鹤云刘训财
Owner NANJING UNIV
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