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Method for improving palatability of caragana feed

A technology of Caragana genus and palatability, applied in animal feed, animal feed, application, etc., can solve the problems of nutrient loss and other problems, and achieve the effects of industrialization, energy consumption reduction, and short extraction time

Inactive Publication Date: 2013-02-27
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 4. Research on improving the nutritional value of Caragana caragana by puffing, "Husbandry and Feed Science", Volume 31, No. 9, 2010, pages 39-40. The tannin removal rate in this article is up to 90%, but high temperature (150°C) is required , the increase in temperature will definitely cause the loss of nutrients

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for improving the palatability of Caragana feed, the specific steps are as follows:

[0034] ⑴Pretreatment: Cut fresh or naturally air-dried Caragana microphylla twigs, leaves and flowers into pieces, beat or crush them through a 20-80 mesh sieve, and add them according to the ratio of material to liquid (w / v) (g / mL) 1:20 Distilled water, mixed well, made into extract;

[0035] ⑵Pressure treatment: put the extract solution in a pressurized reactor at room temperature and use CO 2 Carry out pressurized extraction, the pressure is 1MPa, and the holding time is 15min;

[0036] (3) filter the above-mentioned pressurized extract, remove the filtrate, and obtain Caragana microphylla solid particles after removing tannins;

[0037] (4) Drying at a suitable temperature: place the solid particles of Caragana microphylla with tannin removed in an oven at 45°C to heat dry, that is, a Caragana genus feed product with high palatability.

[0038] Through the test, compare...

Embodiment 2

[0040] A method for improving the palatability of Caragana feed, the specific steps are as follows:

[0041] ⑴Pretreatment: Cut fresh or naturally air-dried Caragana microphylla twigs, leaves and flowers into pieces, beat or crush them through a 20-80 mesh sieve, and add them according to the ratio of material to liquid (w / v) (g / mL) 1:20 Distilled water, mixed well, made into extract;

[0042] ⑵Pressure treatment: put the extract solution in a pressurized reactor at room temperature and use CO 2 Carry out pressurized extraction, the pressure is 20MPa, and the holding time is 15min;

[0043] (3) filter the above-mentioned pressurized extract, remove the filtrate, and obtain Caragana microphylla solid particles after removing tannins;

[0044] (4) Drying at a suitable temperature: place the solid particles of Caragana microphylla from which tannin has been removed in an oven at 45°C to heat dry, that is, a highly palatable Caragana genus feed product.

[0045]Through testing,...

Embodiment 3

[0047] A method for improving the palatability of Caragana feed, the specific steps are as follows:

[0048] ⑴Pretreatment: Cut fresh or naturally air-dried Caragana caragana twigs, leaves and flowers, beat or crush them through a 20-80 mesh sieve, according to the ratio of material to liquid (w / v) (g / mL) 1:20 Add distilled water and mix well to make an extract;

[0049] ⑵Pressure treatment: put the extract solution in a pressurized reactor at room temperature and use CO 2 Carry out pressurized extraction, the pressure is 100MPa, and the holding time is 15min;

[0050] (3) filter the above-mentioned pressurized extract, remove the filtrate, and obtain Caragana caragana solid particles after removing tannins;

[0051] (4) Drying at a suitable temperature: place the solid particles of Caragana caragana with tannins removed in an oven at 45°C for heat drying, that is, a Caragana genus feed product with high palatability.

[0052] Through testing, the tannin removal rate of Car...

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Abstract

The invention relates to a method for improving palatability of caragana feed. The method comprises the following steps of (1) pretreatment: crushing caragana plants, adding water, uniformly mixing, and preparing an extract; (2) pressurizing treatment: putting the extract in a pressurizing reaction kettle, carrying out pressurizing extraction by using CO2 (carbon dioxide) under the pressure of 1-100MPa for 15 to 30 minutes so as to obtain the pressurized extract; (3) filtrate filtering: filtering the pressurized extract in the step (2), and removing the filtrate to obtain caragana solid particles; and (4) drying: drying the caragana solid particles in step (3) to finally obtain the caragana feed with high palatability. The method has the advantages that the steps are completed at normal temperature and high pressure, the removal rate of tannin from the cargana plants is high by the pressurizing method and reaches more than 90%, the nutrient substances of the caragana plants are basically not consumed, the production technology is simple, the extraction time is short, the production efficiency is high, the energy consumption is reduced, and the practical value is high.

Description

technical field [0001] The invention belongs to the technical field of natural product extraction, and relates to a method for removing tannins from fresh or naturally air-dried twigs, leaves and flowers of Caragana plants by adopting a pressurized process, in particular to a method for improving the palatability of Caragana feedstuffs. Background technique [0002] Caragana Fabr. is a deciduous shrub, a specialty of Eurasia, and a typical vegetation in the Eurasian steppe plant subregion. In my country, its cultivated species are generally called Caragana. There are more than 100 species distributed all over the world. my country has identified 66 species. Caragana has abundant resource advantages in the northwest of my country. Not only is the natural species distributed in a large area, but also the area of ​​artificially planted Caragana forest has grown rapidly in recent years. Caragana grows rapidly, is resistant to cold, drought, and barrenness, and has a strong and d...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/14A23K1/00
Inventor 贾士儒钟成王蕊周昭谭之磊韩培培史晓伟
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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