Overview
Cellular collagen is a naturally occurring structural protein that constitutes 25–35% of the body's total protein content. It forms the extracellular matrix in connective tissues, providing tensile strength and elasticity. Industrially, it is extracted from animal hides (bovine/porcine) or marine sources (fish scales/skin) through enzymatic hydrolysis, yielding collagen peptides with enhanced bioavailability. In B2B markets, cellular collagen is categorized by type (I, II, III being most common), source, and molecular weight. Type I collagen dominates commercial applications due to its prevalence in skin, bones, and tendons. The global collagen market is projected to exceed $7.5 billion by 2027, driven by demand from nutraceutical and biomedical sectors.
Physical and Chemical Properties
Native collagen exhibits a unique triple-helix structure stabilized by hydrogen bonds and hydroxyproline residues. This structure denatures at temperatures above 40°C, forming gelatin. Hydrolyzed collagen (MW <50 kDa) loses this helical configuration but gains water solubility and thermal stability. Key chemical properties include amphoteric behavior (isoelectric point ~pH 6–7) and UV absorption at 220–230 nm. The protein contains high percentages of glycine (33%), proline (12%), and hydroxyproline (10%). Rheological studies show viscoelastic behavior in aqueous solutions at concentrations >1% w/v.
Main Applications
In cosmetics, cellular collagen is used in anti-aging creams (stimulates fibroblast activity) and hair conditioners (improves moisture retention). Medical applications include wound dressings (promotes granulation tissue formation) and osteoarthritis supplements (Type II collagen for joint health). The pharmaceutical industry utilizes it as a drug delivery matrix due to its biodegradability. Emerging applications include 3D bioprinting scaffolds (often combined with hyaluronic acid) and cultured meat production as a growth substrate. Food-grade collagen peptides are incorporated into protein bars and functional beverages for their musculoskeletal benefits.
Safety and Storage
Pharmaceutical-grade collagen must meet USP/EP standards for endotoxin levels (<0.5 EU/mg) and heavy metal content. Allergen risks exist for bovine/porcine-derived products; marine collagen is often preferred for hypoallergenicity. Sterilization methods include gamma irradiation (25–50 kGy) or ethylene oxide treatment. Proper storage requires double-aluminum foil packaging with desiccants to prevent moisture absorption (max 8% humidity). Shelf life is typically 24 months when stored at 2–8°C. Thermal degradation studies show <5% peptide bond hydrolysis after 12 months under recommended conditions.
B2B Procurement Guide
Bulk buyers should prioritize suppliers with ISO 13485 certification for medical-grade collagen. Key specifications to verify include: bloom strength (for gelatin forms), ash content (<2%), and microbiological limits (total plate count <1000 CFU/g). For cosmetic applications, request evidence of collagen's molecular weight distribution (HPLC analysis) and heavy metal testing reports. Minimum order quantities typically range from 25–100 kg, with price breaks at tonnage volumes. Emerging suppliers in China offer competitive pricing at $80–150/kg for food-grade marine collagen peptides with COA and MSDS documentation.
Related Manufacturers
- 主营：胶黏剂、牛皮胶、工业明胶、工业骨胶、胶凝剂颗粒、增稠剂颗粒、木工粘合剂、礼盒粘合胶、木材粘合用胶、冶炼电解牛骨胶、粘性稳定牛骨胶、增稠砂轮用骨胶、墨汁用的牛骨胶、砂轮板材粘合剂、明胶木板胶粘剂
- 主营：科研试剂盒、酶免试剂盒、elisa试剂盒、细胞、生物试剂、进口ELISI试剂盒、PCR试剂盒
- 主营：ELISA试剂盒、PCR试剂盒、生化试剂盒、细胞、蛋白、抗体、检测试剂盒
- 主营：elisa试剂盒、生物试剂、荧光试剂盒、细胞胶原蛋白、抗体、化学试剂、培养基、标准品、比色法试剂盒
- 主营：人ELISA试剂盒、大鼠ELISA试剂盒、生化法检测试剂盒、分子学检测试剂盒、植物ELISA试剂盒、鱼ELISA试剂盒
- 主营：igg抗体、糖蛋白、试剂盒、脂蛋白、人瘦素、粗纤维、猪睾酮、烯二酮、nad激酶、测试盒、牛瘦素、牛胆酸、原果胶、磷酸酶、犬肾素、含水量、人蛋白、甜菜碱、igm抗体、dna抗体、磷脂酶、大鼠超、犬叶酸、人胆酸、样受体
- 主营：科研试剂盒、酶免试剂盒、elisa试剂盒、细胞、生物试剂、进口ELISA试剂盒、PCR试剂盒、生化测试盒
- 主营：ELISA试剂盒、PCR试剂盒、生化试剂盒、脂蛋白、关基因、亲环素、钾通道、列抗体、ntp溶液、蛋白酶、脑蛋白、病毒抗、蛋白质、239抗体、dtt溶液、科研试剂
- 主营：ELISA试剂盒、PCR试剂盒、生化试剂盒、科研试剂
- 主营：科研试剂盒、酶免试剂盒、elisa试剂盒、细胞、生化试剂盒、生物试剂、进口ELISA试剂盒、PCR试剂盒、生化测试盒
- 主营：ELISA、分光光度法、微量法、细胞因子试剂盒、ELISA试剂盒、大鼠试剂盒、小鼠试剂盒、人试剂盒、植物试剂盒、酶联免疫法、MEGAZYME、大鼠ELISA试剂盒、小鼠ELISA试剂盒、人ELISA试剂盒、植物ELISA 试剂盒、白介素试剂盒、激素试剂盒、科研试剂盒、化学试剂、检测试剂盒、土壤试剂盒、土壤酶活性检测
- 主营：固体饮料代加工、口服液代加工、压片糖果代加工、胶原蛋白、酵素、防弹咖啡、压片糖果、蛋白奶昔、白芸豆压片、代餐粉、酵素片、方便食品、益生菌、人参牡蛎片、叶黄素酯片
- 主营：口服液代工厂、刺梨饮料、果汁饮料代工厂、胶原蛋白肽口服液、胶原蛋白粉、沙棘饮料、维生素饮料、油柑酵素饮料、瓶装功能饮品、西梅汁代工厂、易拉罐饮料代工厂、运动饮料、玻尿酸口服液、透明质酸钠口服液、人参口服液、葛根玉米肽口服液、左旋右碱咖啡、压片糖果代工厂、固体饮料、功能性饮料代工厂、防弹咖啡、代餐粉、果蔬酵素粉、骆驼奶粉代工厂
- 主营：细胞试剂盒、Elisa试剂盒、生化试剂盒、蛋白试剂盒
- 主营：elisa试剂盒、生化试剂盒、抗体、细胞、pcr试剂盒
- 主营：DMG-PEG