BioReagent 级 ，适用于对基线干扰要求严格的色谱和分析工作流程。
避光,室温。常规运输 。请查阅批次 COA 获取详细规格。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
丝肽是用蚕丝丝素蛋白质经降解形成水溶性的多肽物质。分子量一般在 500-10000 之间，水溶性好，类白色粉末，茚三酮反应呈阳性。
应用特性：
1、护肤保湿：丝肽作为化妆品添加剂时，能增加皮肤和毛发的自然光泽和弹性。丝肽能有效防止皮肤干燥，且能够促进细胞代谢。
2、护发养发：丝肽对头发具有优异的吸收性和吸附性，能够增强头发的光泽和弹性。对于受损发质，丝肽的修复和保护作用尤为明显，能够加强修护毛鳞片，强效补充蛋白质。
3、食品与保健品：在食品营养强化剂中添加丝肽，具有抗辐射、防止白血球减少、降低人体对脂肪和胆固醇的吸收、促进伤口愈合和解毒等作用。
主要性能指标：
| 性状 | 类白色粉末 |
| 总氮 (%) | ≥14.5 |
| 干燥失重 (%) | ≤5.0 |
| 炽灼残渣 (%) | ≤4.5 |
| 铅 (mg/kg) | ≤0.5 |
| 砷 (mg/kg) | ≤0.5 |
| 汞 (mg/kg) | ≤0.2 |
| pH | 4.5‑6.5 |
| 致病菌 | 不得检出 |
Silk peptides are water‑soluble polypeptide substances produced by the degradation of silk fibroin protein. They generally have molecular weights ranging from 500 to 10000. It is an off‑white powder with good water‑solubility and gives a positive ninhydrin reaction.
Application Features:
1. Skin Care and Moisturization: When used as a cosmetic additive, silk peptide enhances the natural luster and elasticity of skin and hair. It effectively prevents skin dryness and promotes cell metabolism.
2. Hair Care: Silk peptide exhibits excellent absorbability and adsorptivity for hair, improving hair luster and elasticity. It delivers particularly remarkable repairing and protective effects on damaged hair: it reinforces the repair of hair cuticles and replenishes protein efficiently.
3. Food and Health‑care Products: When incorporated into food nutrient fortifiers, silk peptide exerts functions such as anti‑radiation, inhibition of leukocyte reduction, reduction of fat and cholesterol absorption by human body, wound‑healing promotion and detoxification.
Main performance indicators：
| Characteristics | Off‑white powder |
| Total Nitrogen (%) | ≥14.5 |
| Loss on Drying (%) | ≤5.0 |
| Residue on Ignition (%) | ≤4.5 |
| Lead (mg/kg) | ≤0.5 |
| Arsenic (mg/kg) | ≤0.5 |
| Mercury (mg/kg) | ≤0.2 |
| pH | 4.5‑6.5 |
| Pathogenic bacteria | Not detected |
危险品化学品经营许可证（带存储）