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A rumen and fat technology, applied in the field of feed processing, can solve the problems of rumen nutrient and additive coating, and achieve the effect of quality safety and safety
Inactive Publication Date: 2010-12-15
QINGDAO AGRI UNIV
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Problems solved by technology
[0007] The purpose of the present invention is to provide a protective fat for rumen-passing substances to solve the coating problem of rumen-passing nutrients and additive physical protection
Method used
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Effect test
Embodiment 1
[0012] The concrete preparation method of protected fat of the present invention:
[0013] Heat the palm oil to 75°C, pump it into the crystallization tank, and let it stand for 2 hours to remove non-uniform grains; then cool it down to 28°C quickly, then slowly cool it down to 18°C, and stand still for 3 hours to make the high melting point fatty acid crystallize uniformly; Finally, it is filtered to remove low-melting-point fatty acids such as short-chain fatty acids and unsaturated fatty acids, and the high-melting-point fatty acids in lipid crystal form are collected, dried, and crushed to 30 meshes.
[0014] The protective fat prepared by the above method is white powder or granule at normal temperature, the free fatty acid content is less than 0.8%, the iodine value is 13, and the melting point is 55°C. Its fatty acid weight ratio is composed of: 1.2% C14:0 (myristic acid), 72.0% C16:0 (palmitic acid), 5.0% C18:0 (stearic acid), 14.5% C18:1 (oleic acid ).
Embodiment 2
[0016] Heat palm oil to 80°C, pump it into a crystallization tank, and let it stand for 2 hours to remove non-uniform grains; then cool it down to 30°C quickly, then slowly cool it to 20°C, and stand still for 4 hours to make the high melting point fatty acid crystallize uniformly; Finally, it is filtered to remove low-melting-point fatty acids such as short-chain fatty acids and unsaturated fatty acids, and the high-melting-point fatty acids in lipid crystal form are collected, dried, and crushed to 40 meshes.
[0017] Its fatty acid weight ratio composition of the protected fat of preparation is C14:0 (myristic acid) 1.8%, C16:0 (palmitic acid) 74.0%, C18:0 (stearic acid) 6.0%, C18:1 (oleic acid) 16.5% . It is white powder or granule at room temperature, free fatty acid 2%, iodine value 15, melting point 54.5°C.
[0018] The effect verification of fat protection of the present invention:
[0019] 1. Using cows and sheep equipped with permanent rumen fistula and duodenal fr...
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Abstract
The invention relates to protective fat of a rumen bypass substance, which comprises the following components in percent by weight: 1.2-1.8 percent of C14:0, 72.0-74.0 percent of C16:0, 5.0-6.0 percent of C18:0 and 14.5-16.5 percent of C18:1. The protective fat is white powder or particles at the normal temperature, contains 1-3 percent of free fatty acid and has the iodine value of 15-17 and the melting point of 50-70 DEG C. A preparation method comprises the steps of: taking palm oil as raw materials, collecting high melting point fatty acid after removing low melting point fatty acid, and processing into the protective fat. The protective fat is nearly not degraded in the rumen of a ruminant, can realize effective protection on the substance subjected to the rumen bypass protection, and can be hydrolyzed into glycol and fatty acid under the acid environment condition of true stomach, thereby ensuring that the protected substances are fully released without excessive protection. Meanwhile, the protective fat can be better absorbed and utilized in the rumen of the ruminant so as to make up the defect of conventional dietary energy of dairy cows.
Description
technical field [0001] The invention belongs to the field of feed processing, and in particular relates to a rumen-passing substance-protected fat. Background technique [0002] The biggest difference between ruminants and monogastric animals is that they have a huge rumen. The rumen is a strictly regulated biological fermenter, in which there are a huge number of rumen microbial systems, such as bacteria, archaea, anaerobic fungi, protozoa and phages. Wait. In the digestion and utilization process of feed nutrients, rumen bacteria and ciliated protozoa are particularly important, and their numbers can reach 10 11 a / mL rumen fluid and 10 5 ~10 6 unit / ml rumen fluid. [0003] Rumen microorganisms play a pivotal role in the life activities of ruminants, and their positive effects are mainly manifested in two aspects: First, they can decompose feed ingredients that animals cannot use themselves to produce substances that can be used by animals, thereby improving the utiliza...
Claims
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Application Information
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