| Velvet Antler processing is the important link of deer products processing and deer farming. It is directly related to the product quality and economic benefits. The velvet processing method has the close relationship to its product's effective component and the active material. Recently,there were some methods of processing velvet antler, such as Microwave energy with Far infrared integrated processing methods, Dual electronic controlling far infrared drying velvet box processing method, Cryogenic vacuum freeze-processing method, and Low-temperature ultrasound pyrolysis processing methods. Each kind of processing method's process period length, processing principle, processing equipment is different. Using Low-temperature ultrasound pyrolysis processing method extracting velvet elements has following merits:①It had broken through the limitation of only able to process entire velvet. Because it could directly extract effective components and active materials in fresh velvet, then obtain velvet element powder by reducing pressure and concentration;So it is avilable for packing, preservation the transportation.②The total amino acid and the dissociation amino acid's content ratio is 10:1 In the extraction, this explained that the majority of amino acids are existed as peptide, is degraded few by the proteinase;③Using the low temperature ethyl alcohol solution(4-6℃)to extract the velvet element could effectively suppresses the reproduction of microorganism;④the velvet element which pyrolysised and extracted by Low-temperature Ultrasound Pyrolysis Processing method have comprehensive nutrition, high activeness;⑤Simultaneously, this processing method shortened the extraction time, has reduced the active material loss, raised utilization of velvet antler;⑥Eliminated the precipitation which the macro-molecule material creates;⑦This processing method uses single solvent - ethyl alcohol to carry on deputes and recycles the resolver, it is convenient, and does not have pollution;⑧This processing method may concurrently extract velvet collogen during extraction. It is also suitable for extract other organizations such as placenta and blood of deer, and other biological product. |