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Method for detoxifying jatropha curcas cakes

A technology of jatropha curcas cake and cake, which is applied in application, food preparation, food science, etc., can solve the problems of high cost, unfavorable large-scale application, large consumption, etc., achieve simple process, alleviate protein crisis, process and easy-to-use effects

Inactive Publication Date: 2013-02-06
SICHUAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the cake obtained after detoxification reaches the recognized safety value of 0.13mg / g in the field, it can be used as a protein source for animal feed, but it is not easy to operate due to the need for multiple extractions, and it also requires ultrasonic equipment and consumes a large amount of ethanol, costing High, not conducive to large-scale industrial application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Crush 16 parts of Jatropha curcas cake to 60 mesh, add 1 part of detoxification agent and mix evenly, add water to make the water content of the cake 20%; put the mixture into a twin-screw extruder for extrusion and puffing, and control its The outlet temperature is 120°C, and the puffed cake is cooled to room temperature, which is Jatropha curcas detoxified granular feed. The content of quicklime in the detoxification agent is 50%, the content of sodium carbonate is 40%, and the content of potassium permanganate is 10%.

[0025] The phorbol ester in the feed plant protein was measured to be 0.07mg / g, the lectin to be 2.8μg / mL, the trypsin inhibitor to be 1.9μg / g, the crude protein to be 59.3%, the crude fiber to be 10.2%, and the crude fat to be 2.1% %.

Embodiment 2

[0027] Crush 15 parts of Jatropha curcas cake to 80 mesh, add 0.5 parts of detoxification agent and mix evenly, add water to make the water content of the cake 15%; put the mixture into a twin-screw extruder for extrusion and puffing, and control its The outlet temperature is 100°C, and the puffed cake is cooled to room temperature, which is Jatropha curcas detoxified granular feed. The content of quicklime in the detoxification agent is 75%, the content of sodium carbonate is 20%, and the content of potassium permanganate is 5%.

[0028] The phorbol ester in the feed plant protein was measured to be 0.09mg / g, the lectin to be 5.7μg / mL, the trypsin inhibitor to be 3.8μg / g, the crude protein to be 61.7%, the crude fiber to be 11.6%, and the crude fat to be 2.2% %.

Embodiment 3

[0030] Crush 18 parts of Jatropha curcas cake to 70 mesh, add 1.5 parts of detoxification agent and mix evenly, add water to make the water content of the cake 30%; put the mixture into a twin-screw extruder for extrusion and puffing, and control its The outlet temperature is 140°C, and the puffed cake is cooled to room temperature, which is Jatropha curcas detoxified granular feed. The content of quicklime in the detoxification agent is 60%, the content of sodium carbonate is 31%, and the content of potassium permanganate is 9%.

[0031]The phorbol ester in the feed plant protein was measured to be 0.04mg / g, the lectin to be 4.5μg / mL, the trypsin inhibitor to be 2.6μg / g, the crude protein to be 63%, the crude fiber to be 9.6%, and the crude fat to be 1.8% %.

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Abstract

The invention discloses a method for detoxifying jatropha curcas cakes. The method for detoxifying the jatropha curcas cakes comprises the process steps of (1) smashing 15-20 parts by weight of jatropha curcas cakes to be 60-80 meshes, adding 0.5-1.5 parts by weight of purification agent to be evenly mixed, and then adding water to enable the water content of the cakes to be 10-30%; and (2) placing a mixture into a double-screw extrusion machine to be extruded, puffed and cooled at the temperature of 80-200 DEG C. In addition, the method for detoxifying the jatropha curcas cakes adopts a physical-chemical detoxification mode, phytolectin, a trypsin inhibitor and anti-nutritional factors in the jatropha curcas cakes are passivated and inactivated, simultaneously phorbol alcohol ester toxin difficult to remove is also passivated and inactivated, and a safe value is reduced by below 0.13mg / g. Obstacles are eliminated for the jatropha curcas cakes serving as a protein source of an animal feed, the detoxification process can be finished in the double-screw extrusion machine in one time, and the method is simple, convenient and easy to operate and is suitable for industrial large-scale application.

Description

technical field [0001] The invention belongs to the technical field of detoxification of Jatropha curcas seed kernels after oil pressing, and in particular relates to a method for removing toxins such as phorbol esters present in the Jatropha curcas kernel oil pressing cakes. Background technique [0002] The shortage of protein is a major problem worldwide. Our country has more people and less food, the grain output is not high, and the protein and protein feed are even more lacking. According to the estimates of the National Feed Industry Office of my country, the annual gap of protein feed resources in China has reached more than 30 million tons, and the gap will reach 40 million tons by 2020. The gap of protein feed resources has become an important factor restricting the development of animal husbandry. Therefore, maximizing the development and rational application of protein feed resources is an important measure to promote the development of animal husbandry and impro...

Claims

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Application Information

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IPC IPC(8): A23L1/211A23L5/20A23L11/30
Inventor 陈放张志林大久保健唐琳徐莺
Owner SICHUAN UNIV
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