Houttuynia cordata extract feed additive and preparation method thereof

A technology of Houttuynia cordata extract and feed additive, applied in the field of Houttuynia cordata extract feed additive and its preparation, to achieve the effects of reducing the incidence of PRRS, high content of active components, and high yield of extract

Inactive Publication Date: 2014-04-16
SHANGHAI ZHAO XIANG BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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However, current research on its value an

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  • Houttuynia cordata extract feed additive and preparation method thereof
  • Houttuynia cordata extract feed additive and preparation method thereof

Examples

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Example Embodiment

[0029] Example 1

[0030] This embodiment relates to a feed additive of Houttuynia cordata extract; its preparation specifically includes the following steps:

[0031] Step 1. Dry the houttuynia cordata leaves naturally, remove impurities, dry them at 60°C for 6 hours, pulverize and pass through a sieve with an aperture of 0.6mm, add 12ml of ethanol solution per gram of houttuynia cordata, and add 70wt% ethanol solution for immersion for 4 hours; Add it to an ultrasonic extractor and perform ultrasonic extraction at room temperature and 115KHz for 45 minutes; after extraction, filter to obtain filtrate and solid residue a; evaporate under reduced pressure to remove ethanol from the filtrate to obtain the first extract;

[0032] Step 2: Add 8 times the amount of water to the solid residue a, boil for 5 hours, with a vapor pressure of 0.5 MPa, and filter to obtain a second extract and solid residue b;

[0033] Step 3: Add 6 times the amount of water to the solid residue b, boil for 3 ho...

Example Embodiment

[0043] Example 2

[0044] The purpose of this embodiment is to consider the influence of pH on the dry paste rate and the extraction rate of active components in the water extraction step after ultrasonic extraction. The preparation of this embodiment is the same as that of embodiment 1, the difference is: in step two, acetic acid is added to adjust the water pH to 5.5, 6.0, 6.5, and in step three, saturated sodium hydroxide is added to adjust the water to pH 8.0, 8.5. , 9.0, forming 9 experimental groups; the pH values ​​of steps 2 and 3 corresponding to experimental groups 1-9 in turn are 5.5, 8.0, 5.5, 8.5, 5.5, 9.0, 6.0, 8.0, 6.0, 8.5, 6.0, 9.0, 6.5, 8.0, 6.5, 8.5, 6.5, 9.0.

[0045] Using 100g of Houttuynia herbal material, a comparative test of this example, example 1 and comparative example 1 was carried out; the details are as follows:

[0046] Dry paste rate determination: The first, second, and third extracts obtained in the above 9 experimental groups and Example 1 were...

Example Embodiment

[0052] Example 3

[0053] This embodiment relates to a feed additive of Houttuynia cordata extract; its preparation is the same as in embodiment 1, except that:

[0054] Step 1. Pass through a sieve with an aperture of 0.5mm, add 10ml of ethanol solution to each gram of Houttuynia cordata, add 65wt% ethanol solution and soak for 5h; ultrasonically extract for 35min under 110KHz;

[0055] Step 2. Boiling for 4h, steam pressure 0.4MPa;

[0056] Step 3: Boiling for 5 hours, steam pressure 1.7MPa.

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Abstract

The invention discloses a houttuynia cordata extract feed additive and a preparation method thereof. The feed additive is prepared from a houttuynia cordata extract by an ultrasonic-assisted water extraction method by taking the houttuynia cordata extract and a carrier as raw materials. In the feed additive preparation process disclosed by the invention, waste on the raw materials is less, the active components in the extract are high in content and the extract yield is high, so that the feed effect is improved and the production cost is lowered. The prepared feed additive can better enhance the immune function of animal body, is disease-resistant and promotes growth, reduces the morbidity of porcine reproductive and respiratory syndrome, reduces the morbidity of diseases of respiratory and digestive tracts of swinery and improves the rate of survival.

Description

technical field [0001] The invention belongs to the field of Chinese herbal medicine feed, and in particular relates to a feed additive of Houttuynia cordata extract and a preparation method thereof. Background technique [0002] With the continuous development of my country's breeding industry, diseases of various farmed animals have become a prominent problem restricting the development of this industry. As far as the common infectious diseases are concerned, the types are very complex, including bacterial diseases, parasitic diseases, viral diseases and so on. Similarly, various types of diseases transmitted through the respiratory tract and digestive tract are deeply troubled by farmers all over the world. Respiratory and digestive tract diseases and digestive tract diseases are increasingly threatening the pig industry in my country, and it has become necessary to solve them. At present, in the breeding industry, such diseases are mainly prevented and controlled by vac...

Claims

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Application Information

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IPC IPC(8): A23K1/14A23K1/16
Inventor 陈佳铭陈学敏陈学锋陈自立陈自强陈惠真陈伟真黄顺捷陈莎莎郑丹荣鲁玲舒婷
Owner SHANGHAI ZHAO XIANG BIOLOGICAL TECH
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