BioReagent 级 提供 ≥95%(SEC-HPLC) 纯度，适用于对基线干扰要求严格的色谱和分析工作流程。
2-8°C储存。低温运输 。请查阅批次 COA 获取详细规格。
SDS、COA、产品数据表及规格说明书均可下载。可通过批号查询获取批次 COA。
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。
β-乳球蛋白B是源自优质牛乳的高纯度乳清蛋白同工型单体，作为乳清蛋白核心功能组分，凭借其稳定的分子构型、均衡的营养组成与独特的理化特性，成为生物医药及食品科学领域备受信赖的研究级原料。
作为脂质运载蛋白家族成员，其拥有经典的β-桶状三维结构，且相较于同工型A，该变体疏水性更低、分子稳定性更为温和，同时致敏性显著减弱，因而更适用于对免疫原性敏感的体外实验及复杂生物体系研究。在营养组成方面，产品富含全部必需氨基酸，支链氨基酸占比超过25%，尤其亮氨酸含量突出，可有效支持细胞代谢与蛋白合成相关实验；其出色的乳化性、凝胶性和脂类结合能力，使其能够高效结合脂肪酸、多酚、脂溶性维生素等多种生物活性分子，并保留抗氧化及免疫调节等基础生物活性，广泛适用于蛋白-配体相互作用解析、递送载体构建、乳品模拟体系开发及营养干预机制探索等科研场景。
本品呈白色至淡黄色精细冻干粉末，由162个氨基酸残基组成，分子量约18.3 kDa。 本品严格遵照质控标准，蛋白含量（干重） ≥93% ，HPLC纯度≥95%，水分含量≤6%，确保批次间稳定性和实验可重复性。
产品于2–8℃条件下避光保存，有效期3年。
本品仅供科研使用，不可用于临床诊断或治疗。
β‑Lactoglobulin B is a high‑purity whey‑protein isoform monomer derived from high‑quality bovine milk. As a core functional component of whey proteins, it features stable molecular configuration, well‑balanced nutritional composition and unique physicochemical properties, rendering it a trusted research‑grade raw material in the fields of biomedicine and food science.
As a member of the lipocalin family, it possesses a canonical β‑barrel three‑dimensional structure. Compared with isoform A, this variant exhibits lower hydrophobicity and moderate molecular stability, together with markedly reduced allergenicity. Therefore, it is more suitable for in vitro experiments sensitive to immunogenicity and research on complex biological systems. Nutritionally, the product contains all essential amino acids, with branched‑chain amino acids accounting for over 25 % and particularly high leucine content, which effectively supports experiments related to cellular metabolism and protein synthesis. Its excellent emulsifying properties, gelling properties and lipid‑binding capacity enable it to efficiently bind various bioactive molecules including fatty acids, polyphenols and fat‑soluble vitamins, while retaining basal biological activities such as antioxidant and immunomodulatory effects. It is widely applied in research scenarios such as characterization of protein‑ligand interactions, construction of delivery carriers, development of simulated dairy systems, and exploration of nutritional‑intervention mechanisms.
This product appears as a white to pale‑yellow fine lyophilized powder composed of 162 amino‑acid residues, with a molecular weight of approximately 18.3 kDa. Manufactured under strict quality‑control standards, it has a protein content (dry weight) ≥ 93 %, HPLC purity ≥ 95 %, and moisture content ≤ 6 %, ensuring batch‑to‑batch stability and experimental reproducibility.
Store the product at 2–8 °C protected from light; shelf‑life is 3 years.
This product is for research use only. It is not intended for clinical diagnosis or therapeutic applications.
危险品化学品经营许可证（带存储）