>> Houttuynia Cordata
1. WHITENING COSMETICS COMPOSITION COMPRISING ORIENTAL MEDICINE EXTRACT BEING IMPROVE TYROSINASE INHIBITOR(PAT - KR20090075893)
JI HYE JA, JUNG HYUNG WOOK, KIM MI SUK, AN JUN HYUK, PAEK WHA KYUNG. Publication: 2009/07/13.
"A whitening cosmetic composition containing a herbal medicine extract having inhibition effect of tyrosinase is provided to have excellent tyrosinase inhibition activity, whitening effect with safety in a human body. A whitening cosmetic composition comprises 0.0001-10 weight% of Cnidium officinale extract, 0.0001-10 weight% of Angelica tenuissima Nakai extract, 0.0001-30 weight% of Pueraria thunbergiana extract, 0.0001-30 weight% of Rheum undulatum extract, 0.0001-10 weight% of Terminaliae fructus extract, 0.0001-10 weight% of Rehmanniae radix Crudus extract, and 0.0001-10 weight% of Houttuynia cordata Thunberg. The cosmetic composition is used in a form of skin, milk lotion, nutrition cream, massage cream, nutrition essence. The herbal medicine extract is obtained by filtering and maturing at room temperature (20-25 DEG C) for seven days."
2. Study on Inhibited Agents of Tyrosinase for Eu-melanin Production.
TAKAYAMA MAKIKO (Kyushu Sangyo Univ.) TOKUNAGA HIROKO (Kyushu Sangyo Univ., Fac. of Eng.) MITSUIKI SHINJI (Kyushu Sangyo Univ., Fac. of Eng.) SAKAI MASASHI (Kyushu Sangyo Univ., Fac. of Eng.).
"The tyrosinase produced from .ALPHA.-melanosyle in human skin cell by photodegration of ultraviolet light stress in sunlight should serve to protectorganisms from the stress, being converted to the Eu-melanin through metabolic pathway of dopachrom from tyrosine. The object of study is to evaluate the effect of many kinds of inhibited agents (whitening reagents) on Eu-melanin production. The effect of inhibited agents extracted from a plant samples on tyrosinase activity has examined from the change of production amounts of dopachrome (.LAMBDA.=475nm) against time. The activity measurement of various inhibition agents were carried out under the conditions of pH7.0, and at 30.DEG.C. by use of plate and spectrophotometer methods. As a result inhibited effect of Houttuynia cordata composition for tyrosinase showed a maximum comparing with other plants. Furthermore inhibitors of a low molecule for tyrosinase were confirmed during composition separated with Superdex column."
3. PHARMACEUTICAL PREPARATION FOR EXTERNAL APPLICATION TO SKIN COMPRISING PHOSPHORYLATED SUGAR.
Tanaka, Tomoko (Alpha Puraizu V26-70-301, YoshidakonoechoSakyo-ku, Kyoto-shi Kyoto 606-8315, JP), Kamasaka, Hiroshi (14-5, Uwaharanishimachi, Kawachinagano-shi Osaka 586-0038, JP), Sugimoto, Kazuhisa (3-23, ShichijodoriSakai-ku, Sakai-shi Osaka 590-0042, JP), Nishimura, Takahisa (1-7-10-5, Saidaijinogamicho, Nara-shi Nara 631-0833, JP), Kuriki, Takashi (8-C-512, Satsukigaoka-Higashi, Suita-shi Osaka 565-0831, JP). Publication Date:06/18/2008.
"Provided is an external preparation for skin, comprising a phosphorylated saccharide. The phosphorylated saccharide may be an inorganic salt of a phosphorylated saccharide. The phosphorylated saccharide may be a calcium, magnesium, potassium, zinc, iron or sodium salt. Also provided is an external preparation for skin, comprising a phosphorylated saccharide and a second component, wherein the second component is selected from the group consisting of moisturizing agents, whitening components, ultraviolet absorbents, anti-inflammatory agents, cell-activating agents and antioxidants. The moisturizing agent may be ascorbic acid or an ascorbic acid derivative. ... Natural extracts include natural extracts obtained by extraction or hydrolysis of plants and animals, microorganisms and a part thereof with an organic solvent, an alcohol, a polyhydric alcohol, water, or an aqueous alcohol. The plants and animals, microorganisms and a part thereof include yeasts such as Saccharomyces; bacteria; human umbilical cord, yeast, milk-derived protein, silk, wheat, soy bean, bovine blood, swine blood, cockscomb, almond, cacao, macadamia nuts, olive, ginger, corn, linden, pine, peppermint, burdock, sesame, prune, Houttuynia cordata, Sasa veitchii, camellia, grapefruit, mallow, rice, avocado, cactus, lavender, sunflower, Japanese cypress, sesame, lily, Citrus junos, rose, acerola, cucumber, rice, shea butter, white birch, tomato, garlic, witchhazel, sponge gourd, hop, peach, apricot, lemon, kiwifruit, Houttuynia cordata, capsicum, Sophora flavescens, Rumex japonicus, Nuphar japonicum, sage, yarrow, mallow, cnidium rhizome, swertia herb, thyme, birch, common Horsetail, sponge gourd, marronnier, Saxifraga stolonifera, arnica, lily, Artemisia princeps, phellodendron bark, safflower, gardenia fruits, jujube, citrus unshiu peel, coix seed, gardenia jasminoides, sawara cypress, chamomile, melissa, loquat, jatoba, and the like. The blending amount of the natural extracts is preferably, about 0.001 % by weight or more, preferably, about 10 % by weight or less, with respect to the total amount of the external preparation for skin."