title: Protective effects of tea polysaccharides and polyphenols on skin.
abstract: The protective effects of tea polysaccharides (TPS) and polyphenols (TPP) on skin were investigated. TPS1 (92% TPS), crude TPS2 (20% TPS), and TPP (98%) were tested. The abilities of TPS and TPP to protect the skin were assessed in four aspects: moisture absorption and retention, sunscreen, promoting the proliferation of fibroblast cells, and tyrosinase inhibitory effect. TPS and TPP absorbed and reserved moisture perfectly. TPS with higher purity had better moisture absorption and retention abilities. TPS1 hardly protected the skin from the sun's ultraviolet (UV) rays and had little promoting effect on fibroblasts proliferation. TPP, however, protected skin against UV rays and enhanced proliferation of fibroblast cells significantly. TPP had good tyrosinase inhibitory effects; TPS showed weaker tyrosinase inhibitory effects with the purity increased. The results indicated that TPP and TPS had complementary advantages and they should be appropriately combined to achieve higher performance when applied as active components of cosmetics.
authors: Institute of Food Engineering, College of Life and Environment Science, Shanghai Normal University, Shanghai 200234, People's Republic of China.
authors: Xinlin
authors: X
authors: Wei
authors: Ying
authors: Y
authors: Liu
authors: Jianbo
authors: J
authors: Xiao
authors: Yuanfeng
authors: Y
authors: Wang
mesh_terms: D000042:Absorption / Q000187:drug effects; D000818:Animals; D028241:Camellia sinensis / Q000737:chemistry; D002455:Cell Division / Q000187:drug effects; D002478:Cells, Cultured; D003358:Cosmetics / Q000032:analysis; D004791:Enzyme Inhibitors / Q000494:pharmacology; D005347:Fibroblasts / Q000166:cytology / Q000187:drug effects; D005419:Flavonoids / Q000494:pharmacology*; D051379:Mice; D014442:Monophenol Monooxygenase / Q000037:antagonists & inhibitors; D010636:Phenols / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry; D059808:Polyphenols; D011134:Polysaccharides / Q000494:pharmacology*; D012867:Skin / Q000187:drug effects*; D012871:Skin Diseases / Q000517:prevention & control; D013473:Sunscreening Agents; D013662:Tea / Q000737:chemistry*; D014867:Water / Q000378:metabolism
chemical_list: D003358:Cosmetics; D004791:Enzyme Inhibitors; D005419:Flavonoids; D010636:Phenols; D059808:Polyphenols; D011134:Polysaccharides; D013473:Sunscreening Agents; D013662:Tea; D014867:Water; D014442:Monophenol Monooxygenase