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Article Abstract
Two water-soluble polysaccharides, BSP-1 and BSP-2, were extracted and purified from the tuber of Bletilla striata. The molecular weights of BSP-1 and BSP-2 were 83.54 kDa and 12.60 kDa, respectively. The composition and proportion of BSP-1 and BSP-2 were mannose and glucose in molar ratios of 4.0:1.0 and 3.0:1.0 respectively. The two polysaccharides had a linear backbone, consisting mainly of repeating β‑1,4‑linked d‑mannosyl residues and β‑1,4‑linked d‑glucosyl residues. BSP-1 exhibited immunomodulatory effects by increasing the thymus and spleen indices of immunocompromised model mice.
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Skin healthcare protection with antioxidant and anti-melanogenesis activity of polysaccharide purification from Bletilla striata.
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Article Synopsis
- A study extracted polysaccharides from a source abbreviated as BSP using hot water, resulting in four fractions (BSP-1 to BSP-4) that were analyzed for their chemical composition and biological activities.
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State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China. Electronic address:
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