Collagen remained the initial functions of collagen and had some new characters because of its structure， such as reversible colloid with heat and easy processed without molecular reduction and so on. However， animal collagen extracted from animal tissues was insoluble except for the molecular weight reduction.
The fetal shortcomings of animal collagen restricted the application is its harmful virus， but Human-like Collagen made up these drawbacks. Collagen （extracted from animal skin， tendons and hides） is potential risk in virus with the potential to cause side effect and the potential for the contamination of bovine collagen with the fatal mad cow disease. Collagen dissolves in water， which is another advantage to compete with animal collagen. It is different from hydrolyzed collagen produced by hydrolyzing animal collagen to short peptide linkage with a lower molecular weight.
Human-like collagen was expressed by human collagen gene in host， so mmunogenicity could be lessened much by compared with animal collagen after it entered into human body.
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大肠杆菌中重组表达
溶解建议
Sterile Filtered White lyophilized （freeze-dried） powder. The protein was lyophilized after from a sterile solution containing no additives. It is recommended to reconstitute the lyophilized Collagen in sterile 18MΩ-cm H2O not less than 100ug/ml， which can then be further diluted to other aqueous solutions.
保存建议
Lyophilized Collagen although stable at room temperature for 3 weeks， should be stored desiccated below -18℃. Upon reconstitution Collagen should be stored at 4℃ between 2-7 days and for future use below -18℃.
For long term storage it is recommended to add a carrier protein （0.1% HSA or BSA）.
Please prevent freeze-thaw cycles.
