WO2012089101A1 - 一种抗衰老中草药组合物及其制备方法和应用 - Google Patents

一种抗衰老中草药组合物及其制备方法和应用 Download PDF

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WO2012089101A1
WO2012089101A1 PCT/CN2011/084734 CN2011084734W WO2012089101A1 WO 2012089101 A1 WO2012089101 A1 WO 2012089101A1 CN 2011084734 W CN2011084734 W CN 2011084734W WO 2012089101 A1 WO2012089101 A1 WO 2012089101A1
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extract
weight
chinese herbal
propanediol
parts
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PCT/CN2011/084734
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English (en)
French (fr)
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祝乐
熊卫国
陈默
程康
赵亚
严淑贤
任婕
项红蕾
方程
吕洛
魏少敏
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上海家化联合股份有限公司
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Priority to CA2823422A priority Critical patent/CA2823422C/en
Priority to AU2011352576A priority patent/AU2011352576B2/en
Publication of WO2012089101A1 publication Critical patent/WO2012089101A1/zh

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/18Magnoliophyta (angiosperms)
    • A61K36/185Magnoliopsida (dicotyledons)
    • A61K36/28Asteraceae or Compositae (Aster or Sunflower family), e.g. chamomile, feverfew, yarrow or echinacea
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/18Magnoliophyta (angiosperms)
    • A61K36/185Magnoliopsida (dicotyledons)
    • A61K36/48Fabaceae or Leguminosae (Pea or Legume family); Caesalpiniaceae; Mimosaceae; Papilionaceae
    • A61K36/481Astragalus (milkvetch)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/18Magnoliophyta (angiosperms)
    • A61K36/185Magnoliopsida (dicotyledons)
    • A61K36/64Orobanchaceae (Broom-rape family)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/96Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
    • A61K8/97Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
    • A61K8/9783Angiosperms [Magnoliophyta]
    • A61K8/9789Magnoliopsida [dicotyledons]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P39/00General protective or antinoxious agents
    • A61P39/06Free radical scavengers or antioxidants
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • A61Q19/08Anti-ageing preparations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/52Stabilizers
    • A61K2800/522Antioxidants; Radical scavengers

Definitions

  • the invention relates to the field of cosmetics, in particular to a Chinese herbal medicine extract, a preparation thereof and an application thereof, and a Chinese herbal medicine composition having anti-aging, especially anti-photoaging effect, comprising the Chinese herbal medicine extract, and preparation thereof and application in cosmetics.
  • UVB UVB
  • UVA UVA
  • UVA UVA
  • the technical problem to be solved by the present invention is to provide a Chinese herbal medicine extract.
  • the Chinese herbal medicine extract of the present invention is an aqueous or solvent extract of 10 to 50 parts by weight of snow lotus, 10 to 50 parts by weight of Cistanche, and 20 to 60 parts by weight of Astragalus, wherein the solvent is selected from the group consisting of methanol, ethanol, and isopropanol. , n-butanol, ethylene glycol, 1,2-propanediol, 1, 3-propanediol, 1,3-butanediol, acetone, ethyl acetate or a combination thereof.
  • snow lotus refers to the medicinal part of the flower of the plant snow lotus.
  • Snow lotus is a herbaceous plant of the genus Chrysanthemum of the genus Chrysanthemum. It mainly includes Saussurea involucrata Kar. et Kir., Saussurea laniceps Hand. -Mazz., S. gnaphaloides (Royle) ) Sch.- ⁇ ., Jellyfish Snow Lotus S. medusa ro'.
  • Snow Lotus is mainly produced in Sichuan, Yunnan, Thu, Xinjiang, Gansu, Qinghai, etc., from June to July , when the flowers are open, Plant, remove the soil, dry, cut, and use.
  • the Compendium of the Compendium "Snow Lotus, the north of the Ili and Jinchuan, the place of the cold, Ji Xuechun Summer is not scattered, there are grass in the snow, lotus-like, single stem, stylish in the pavilion.”
  • Cistanche is a medicinal part of the dried scaly fleshy stem of Cistanche tubulosa or Cistanche tubulosa.
  • Cistanche is a dry, scaly fleshy stem of the Cistanche deserticola Y. C. Ma or Cistanche tubulosa (Schrenk) Wight. More than the spring seedlings were not excavated or excavated when they were just released, the inflorescences were removed, cut into sections, and dried.
  • Cistanche is mainly distributed in Inner Mongolia, Gansu, Xinjiang, Qinghai and other places.
  • Cistanche is contained in "Shen Nong's Herbal Classic". According to the description: Cistanche is sweet, salty, and warm. It has the functions of tonifying kidney yang, benefiting essence blood, and relaxing bowel movements. It treats impotence, infertility, blood stasis, and weak waist and knees. Cold pain, weakness and other symptoms. In the past dynasties, Cicada was used as a royal treasure for the tribute to the courts of the Western Regions. Cistanche is a kidney that nourishes blood and regulates color, can regulate endocrine, promote metabolism and strengthen the body, and has anti-oxidation effect. "Pharmacology”: "Yi marrow, Yue color, Yannian, Dabuyi” "Complete the defeat, face black labor injury.”
  • Astragalus also known as Astragalus, is a collective name for plants and Chinese herbal medicines.
  • Astragalus membranaceus refers to the medicinal part of the dry root of the plant Mongolian Astragalus or Astragalus membranaceus.
  • Astragalus is a leguminous plant Astragalus membranaceus (Fisch.) Bge. var. mongholicus (Bge.) Hsiao or Astragalus membranaceus (Fisch.) Bge. j thousand), ⁇ root. In the spring and autumn seasons, the roots and roots are removed and dried. Astragalus membranaceus is produced in North China, Northeast China, Inner Mongolia and Northwest China.
  • the Chinese medicinal material Astragalus membranaceus has the effects of tonifying the qi, solidifying the water, reducing the swelling of the water, removing the pus, and stimulating the muscles.
  • the medicinal use of Astragalus has been more than 2,000 years old. Modern research, Astragalus saponins, sucrose, polysaccharides, various amino acids, folic acid and Shixi, Ci, copper and other trace elements. It has enhanced immune function, liver protection, diuresis, anti-aging, anti-stress, antihypertensive and broader antibacterial effects. Astragalus replenishing in Yanze noodles can enhance the body's resistance, anti-oxidation and delay aging.
  • the effect is comprehensive, and its composition is more suitable for the synergistic effect of traditional Chinese medicine in cosmetics than single Chinese medicine.
  • the Chinese herbal medicine extract of the present invention is 30 parts by weight of snow lotus, 20 parts by weight of Cistanche, 50 parts by weight of water or a solvent extract of xanthine, and the solvent is selected from the group consisting of methanol, ethanol, isopropanol, n-butanol, Ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,3-butanediol, acetone, ethyl acetate or a combination thereof.
  • the extraction is selected from the group consisting of boiling, refluxing, dipping, percolating, or a combination thereof.
  • the above extract may be in a form selected from the group consisting of a solution, a powder, an ointment, a film or a cream.
  • the present invention also provides a Chinese herbal medicine composition having an anti-photoaging effect, the composition comprising the above extract.
  • the Chinese herbal medicine extract and the Chinese herbal medicine composition of the present invention can be directly used for preventing skin aging, especially photoaging, and can also be added to cosmetics as an efficacy additive.
  • the Chinese herbal medicine extract and the Chinese herbal medicine composition of the invention have anti-aging effect, especially anti-photoaging effect, help the skin to resist oxidation, promote the proliferation of dermal fibroblasts, especially help the skin to resist UVB and UVA ultraviolet radiation, protect the skin, reduce damage, It prevents skin photoaging and is non-irritating to the skin.
  • the cosmetic may be a cosmetic cream, an eye cream, a facial mask, a facial cleanser, a toner or a serum.
  • the invention also provides a preparation method of the above Chinese herbal medicine extract, the method comprising:
  • the solvent is selected from the group consisting of decyl alcohol, ethanol, and isopropyl alcohol.
  • the doubling amount refers to the ratio of the volume of the solvent to the total weight of the medicinal material, wherein the unit of the solvent volume is ml, and the unit of the total weight of the medicinal material is g; Shen
  • the alcohol precipitation supernatant recovers the solvent.
  • the alcohol precipitate can be formulated into various dosage forms such as solutions, powders, ointments, films or creams.
  • the alcohol precipitation is selected from the group consisting of decyl alcohol, ethanol, isopropanol, n-butanol, ethylene glycol, 1 > 2- An alcohol of propylene glycol, 1,3-propanediol, 1, 3-butanediol or a combination thereof.
  • the extract of the present invention can be added with water to prepare a composition containing a crude drug amount of 50 to 1000 mg/ml.
  • Free radicals are a class of chemical substances that are active and highly oxidizing. Ultraviolet light UVA/UVB irradiation produces a large amount of free radicals, causing damage to the body and accelerating aging.
  • the in vitro antioxidant activity of the extracts in the examples was determined by DPPH radical scavenging method.
  • the extracts in the examples were diluted to two concentrations of 1% and 0.5% (v/v), respectively, with distilled water. Then, 2 ml of the extract of the example, a concentration of 50 ( ⁇ mol/L of DPPH ethanol solution 0.5 ml and 1.5 ml of water were added to the same test tube, shaken, and allowed to stand. After 30 min, the absorbance (OD) was measured at 517 nm. And the corresponding mixture was used as a blank control.
  • the clearance rate of DPPH of the example extract was calculated according to the following formula:
  • the prepared cell suspension (prepared to a concentration of 5*10 3 /ml) was inoculated into a 96-well plate, and after the cells were attached, 20 ul of the corresponding concentration of the Chinese herbal medicine of the example was added to each well except the blank control group. Extract, set 4 concentration groups, 6 holes in each group, incubate in incubator (37 ° C, 5% C0 2 ) for 24 h, then add 20 ul of MTT solution, continue in the incubator (37 ° C, 5 Incubate for 4 h in %C0 2 ). After removing the microplate, carefully remove the culture solution from each well, add DMSO, and mix well. The optical density (570 nm) was measured by enzyme-linked immunosorbent assay, and the relative proliferation rate of the sample group was obtained by comparison with the control group.
  • UVB medium-wave ultraviolet
  • UVA long-wave ultraviolet
  • UVA/UVB irradiation causes damage to fibroblasts, causing damage to the skin and causing photoaging.
  • UV-irradiation experiment was used to examine the photoaging effect of the herbal extract of the examples against UV-induced cell protection.
  • the irradiated Fb cells were used as a model group, and the Fb cells co-cultured with the sample extract (0.15 mg/ml) and DMEM were irradiated with UVA/UVB as the drug-added group. 24 hours after the ultraviolet treatment, the enzyme was labeled with CCK-8. The absorbance (OD value) of each well was measured, and the cell proliferation rate was the percentage of the OD value of each treatment group to the negative control group, and each test face was repeated three times.
  • Extract A of Example 1 the extract of Example 2, and the extract of Example 3 (:, Extract D of Example 4 can all reduce the damage of fibroblasts by UV irradiation, so that the cell proliferation rate is basically the same.
  • the recovery was more than 80%, and the effect of Extract D of Example 4 was the best.

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Description

一种抗衰老中草药组合物及其制备方法和应用 技术领域
本发明涉及化妆品领域, 特别是涉及中草药提取物及其制备和应用, 以 及包含该中草药提取物的具有抗衰老尤其抗光老化作用的中草药组合物及 其制备和在化妆品中的应用。 背景技术
研究表明,皮肤光老化主要由日光中的中波紫外线( UVB, 290~320nm ) 和长波紫外线(UVA , 320~400nm )共同引起。 紫外线对人皮肤的老化有 明显促进作用, 高暴露人群皮肤老化危险性比低暴露人群高一倍, 老化发生 时间提前 10年。 长期暴露于日光紫外线引起皮肤光老化, 并可导致严重的美 容问题, 因而近年来倍受行业关注, 抗光老化的产品纷纷问世, 相关研究如 火如茶。 随着天然、 安全与环保要求的提出, 绿色化妆品越来越为人们所青 睐。 但目前国内外市场抗光老化化妆品多以生化制剂、合成化合物为主要功 效支持添加剂, 具有一定中医药理论指导的中草药抗光老化添加剂仍是空 缺。 发明内容
本发明要解决的技术问题是提供一种中草药提取物。
本发明的中草药提取物, 是 10~50重量份雪莲花, 10~50重量份肉苁蓉 和 20〜60重量份黄芪的水或溶剂提取物, 其中, 所述溶剂选自甲醇、 乙醇、 异丙醇、 正丁醇、 乙二醇、 1 , 2-丙二醇、 1, 3-丙二醇、 1 , 3-丁二醇、 丙酮、 乙酸乙酯或其组合。
上述配方中, 雪莲花、 肉苁蓉、 黄芪都有明确抗衰老功效。
在本发明中, 雪莲花是指植物雪莲的花这个药用部位。 雪莲是菊科凤毛 菊属雪莲亚属的草本植物, 主要包括大苞雪莲花 Saussurea involucrata Kar. et Kir.、绵头雪莲花 Saussurea laniceps Hand. -Mazz.、鼠曲雪莲花 S.gnaphaloides (Royle) Sch.-Βίρ. , 水母雪莲花 S. medusa ro' .等的带花全株。 雪莲花主产 于四川、 云南、 西藏、 新疆、 甘肃、 青海等地, 6〜7月间, 待花开时拔取全 株, 除去泥土, 晾干, 切段, 生用。
雪莲花清热养血, 平衡阴阳, 补益, 一千多年前的 《道藏》将雪莲花称 为 "千年仙草", 《忆旧游诗话》: "雪莲花,千年不化元雪深处有之,形似莲花, 高可丈许。 取以酿酒,倍增春色。 盖阴极而阳生之意耳。"《纲目拾遗》: "雪荷 花, 产伊犁西北及金川等处大寒之地,积雪春夏不散, 雪中有草, 类荷花, 独 茎, 亭亭雪间可爱。 "。
肉苁蓉是指植物肉苁蓉或管花肉苁蓉的干燥带鳞叶的肉质茎这个药用 部位。 肉苁蓉是列当科植物肉苁蓉 Cistanche deserticola Y. C.Ma或管花肉苁 蓉 Cistanche tubulosa (Schrenk) Wight的干燥带鳞叶的肉质茎。 多于春季苗未 出土或刚出时采挖, 除去花序, 切段, 晒干。 肉苁蓉主要分布于内蒙、甘肃、 新疆、 青海等地。
苁蓉始载于 《神农本草经》, 据记述: 苁蓉味甘、 咸、 性温, 具有补肾 阳、 益精血、 润肠通便之功效, 主治阳痿、 ***、 血崩、 腰膝酸软冷痛、 筋 骨无力等症。 苁蓉历代被作为西域各国贡奉朝庭的御用珍品, 因而又名肉苁 蓉。 肉苁蓉补肾益血润颜色, 可调整内分泌, 促进代谢及机体强壮, 并有抗 氧化的作用。 《药性论》: "益髓、 悦颜色, 延年, 大补益" "补精败, 面黑劳 伤"。
黄芪, 又名黄耆, 为植物和中药材的统称。 黄芪是指植物蒙古黄芪或膜 荚黄芪的干燥根这个药用部位。 黄芪是豆科植物蒙古黄芪 Astragalus membranaceus (Fisch.) Bge. var. mongholicus (Bge.) Hsiao 或膜笑黄 Astragalus membranaceus (Fisch.) Bge. j千)、 ^根。 春、 秋二季采挖, 除去须根 及根头, 晒干。 黄芪产于我国华北、 东北、 内蒙古和西北, 主产于山西、 黑 龙江、 辽宁、 河北等省, 四川, 前苏联、 朝鲜和蒙古也有分布。 膜荚黄芪主 要分布于我国东北、 华北、 甘肃、 四川、 西藏等省区; 蒙古黄芪主产内蒙古、 山西及黑龙江; 现广为栽培。
中药材黄芪具有补气固表、 利水退肿、 托毒排脓、 生肌等功效。 黄芪的 药用迄今已有 2000 多年的历史, 现代研究, 黄芪含皂甙、 蔗糖、 多糖、 多 种氨基酸、 叶酸及石西、 辞、 铜等多种微量元素。 有增强机体免疫功能、 保肝、 利尿、 抗衰老、 抗应激、 降压和较广泛的抗菌作用。 黄芪补益驻颜泽面, 可 以增强机体抵抗力, 抗氧化, 延緩衰老。
本方黄芪平衡滋补气血, 增强肌肤免疫为君药; 肉苁蓉强化补精益髓, 雪莲花养血、 对抗光辐射与氧化, 用为臣药; 结合古代美容文献研究, 增减 配伍, 选择黄芪、 肉苁蓉、 雪莲花之合理配比, 采用药用植物之根、 茎、 花, 共同抵御肌肤衰老。 功效全面, 其组合物较单一中药更适用于在化妆品中体 现中药的协同功效。
优选地, 本发明的中草药提取物, 是 30重量份雪莲花, 20重量份肉苁 蓉, 50重量份黄芪的水或溶剂提取物, 所述溶剂选自甲醇、 乙醇、 异丙醇、 正丁醇、 乙二醇、 1 , 2-丙二醇、 1 , 3-丙二醇、 1 , 3-丁二醇、 丙酮、 乙酸乙 酯或其组合。
优选地, 所述提取选自煎煮、 回流、 浸渍、 渗漉或其组合。
上述提取物的形式可以是选自溶液剂、 粉剂、 软膏剂、 膜剂或膏霜。 本发明还提供一种具有抗光老化作用的中草药組合物, 该组合物包含上 述提取物。
本发明的中草药提取物及中草药组合物, 可直接用于预防皮肤衰老尤其 光老化, 也可以作为功效添加剂加入到化妆品中使用。 本发明的中草药提取 物及中草药组合物具有抗衰老作用, 尤其抗光老化作用, 帮助皮肤抗氧化、 促进真皮成纤维细胞增殖尤其能够帮助皮肤抵御 UVB和 UVA的紫外线照 射, 保护皮肤, 减少损伤, 预防皮肤光老化, 而且对皮肤无刺激。 所述化妆 品可以是美容护肤霜、 眼霜、 面膜、 洗面奶、 柔肤水或精华素。 本发明还提供上述中草药提取物的制备方法, 该方法包括:
将 10〜50重量份雪莲花, 10〜50重量份肉苁蓉和 20~60重量份黄芪充分 混合, 用水和 /或溶剂浸泡 0.5~1小时并提取, 所述溶剂选自曱醇、 乙醇、 异 丙醇、 正丁醇、 乙二醇、 1 , 2-丙二醇、 1, 3-丙二醇、 1 , 3-丁二醇、 丙酮、 乙酸乙酯或其组合;
过滤, 并重复提取滤渣, 合并滤液;
将滤液浓缩至药材总重量的 2倍量左右 (V/W ), 倍量是指溶剂体积与 药材总重量的比值, 其中溶剂体积的单位是 ml, 药材总重量的单位是 g; 再进行醇沉;
醇沉上清液回收溶剂。
醇沉物可配制成各种剂型, 如溶液剂、 粉剂、 软膏剂、 膜剂或膏霜。 优选地, 所述醇沉采用选自曱醇、 乙醇、 异丙醇、 正丁醇、 乙二醇、 1 > 2- 丙二醇、 1 , 3-丙二醇、 1, 3-丁二醇或其组合的醇。
本发明的提取液可加水制成含生药量 50~1000mg/ml的组合物。 具体实施方式
以下通过实施例对本发明进行较为详细的说明。
实施例 1
取纯正中药材雪莲花 10g、 黄芪 60g、 肉苁蓉 30g总计 100g, 充分混合, 加 10倍量 (倍量: 指溶剂体积与药材总重量的比值, 其中溶剂体积的单位是 ml, 药材总重量的单位是 g, 下同) 75%乙醇 (v/v)冷浸 48小时, 滤过, 滤液 回收乙醇, 所得提取物用水溶解, 制成含生药量为 500mg/ml的溶液, 得到 提取液 A。 实施例 2
取纯正中药材雪莲花 30g、 黄芪 30g、 肉苁蓉 40g总计 100g, 充分混合, 加 10倍量甲醇回流提取 2小时, 滤过, 滤液回收曱醇, 所得提取物用水溶 解, 制成含生药量为 50mg/ml的溶液, 得到提取液 B。 实施例 3
取纯正中药材雪莲花 40g、 黄芪 50g、 肉苁蓉 10g总计 100g, 充分混合, 用 10倍量水煎煮提取约 2小时, 浓缩, 滤过, 上清液加水制成含生药量为 1000mg/ml的溶液, 得到提取液 C。 实施例 4
取纯正中药材雪莲花 30g、 黄芪 40g、 肉苁蓉 30g总计 100g, 充分混合, 用 10倍量水煎煮提取约 2小时, 浓缩, 加 2倍量乙醇沉淀, 滤过, 滤液回 收乙醇, 所得提取物用水溶解滤过, 制成含生药量为 500mg/ml的溶液, 得 到提取液0。 实验例 1 DPPH实验
自由基是一类性质活泼、 具有极强氧化能力的化学物质。 紫外线 UVA/UVB的照射会产生大量自由基, 对机体造成损伤, 加速衰老。 在此采 用 DPPH自由基清除法测定实施例中提取物的体外抗氧化活性。 用蒸馏水将实施例中的提取物分别稀释到 1%和 0.5%(v/v)两个浓度。 然 后取实施例提取物 2ml、浓度为 50(^mol/L的 DPPH乙醇溶液 0.5ml和 1.5ml 水, 先后加入同一试管中, 摇匀, 静置, 30min后在 517nm处测定其吸光度 ( OD ), 并以相应的混合液作为空白对照。 实施例提取物对 DPPH的清除率 根据以下公式计算:
T - TO
清除率( %) 100 %
C 其中:
T— DPPH+实施例提取物的吸光度,
TO—实施例提取物 +溶剂的吸光度,
C一 DPPH+溶剂的吸光度。 本发明的抗衰老中草药组合物抗氧化能力评估结杲如表 1所示 (
表 1
Figure imgf000006_0001
实验结果表明,实施例 1提取物 A、实施例 2提取物 B、实施例 3提取物 C、 实施例 4提取物 D在体外 1°/。和 0.5%浓度均有较好清除自由基的抗氧化能 力, 其中 0.5%的自由基清除率均在 15%以上, 1%浓度的自由基清除率均在 35%以上, 以实施例 4提取物 D效果最好。 实验例 2 成纤维细胞增殖试验 皮肤中的成纤维细胞是合成胶原蛋白的主要细胞,成纤维细胞的大量增 殖或成纤维细胞合成和分泌胶原蛋白能力的增强,都可以使胶原蛋白总量增 加, 从而减緩皮肤的衰老。 因此, 研究促成纤维细胞的增殖作用是评价样品 抗衰老活性的重要方法之一。 本试验根据以上皮肤衰老的机理, 采用体外培 养人成纤维细胞的方法, 来初步评价本发明中的中药组合物的抗衰老功效。
将制备好的细胞悬液(配制成浓度为 5* 103个 /ml )接种于 96孔板内 , 待 细胞贴壁后, 除空白对照组, 其他每孔加入 20ul相应浓度的实施例的中草药 提取物, 设 4个浓度组, 每组 6个孔, 置孵箱 (37°C,5%C02)中培养 24 h, 然后 加人 MTT液 20ul, 继续在孵箱 (37°C,5%C02)中培养 4h。 取出酶标板后, 小心 吸去每孔内的培养液,加入 DMSO,混合均匀。用酶联免疫检测仪测定光密度 ( 570nm ), 通过与对照组的比较得到样品组的相对增殖率.
抗衰老中草药组合物对成纤维细胞的增殖活性结果如表 2所示。
表 2
Figure imgf000007_0001
实验结果表明, 实施例 1提取物 A、 实施例 2提取物 B、 实施例 3提取 物 C、 实施例 4提取物 D均可以促进成纤维细胞的增殖, 以实施例 3提取物 C的效果最好, 其 0.001%浓度促成纤维细胞增殖达 10.4%。 实验例 3 UV照射对成纤维细胞损伤的保护作用
皮肤光老化主要由日光中的中波紫外线(UVB, 290〜320nm )和长波 紫外线(UVA, 320~400nm )共同引起, 紫外线对人皮肤的老化有明显促 进作用。 UVA/UVB照射会引起成纤维细胞的损伤死亡, 对皮肤造成伤害, 导致光老化。 在此通过 UV照射实验来考察实施例的中草药提取物对 UV照 射的细胞保护的抵御光老化作用。
分别取实施例中提取物 0.5ml, 加 4.5ml PBS进行稀释, 配成 1/10浓度 (v/v)进行抽滤, 然后取 0.1ml力 p 9.9ml无菌 PBS最后稀释成 1/1000的浓度 (v/v)„以正常 DMEM液培养的皮肤成纤维细胞( Fb )为对照组,以正常 DMEM 液培养后用 UVA(5-20J/cm2)/UVB UVB(20-80J/cm2)照射的 Fb细胞为模型组, 以实施例提取物( 0.15mg/ml )和 DMEM液共培养并经 UVA/UVB照射的 Fb 细胞为加药组。 紫外线处理后 24h,通过 CCK-8用酶标仪测定各孔的吸光度 (OD值), 细胞增殖率为各处理组 OD值占阴性对照組 OD值的百分率,每个 试臉重复三次。
实验结果见表 3和表 4。 表 3 UVA照射
Figure imgf000008_0001
实验结果表明, 实施例 1提取物 A、 实施例 2提取物 B、 实施例 3提取 物(:、 实施例 4提取物 D均可以减少 UV照射对成纤维细胞的损伤,使细胞 增值率基本均恢复至 80%以上, 并以实施例 4提取物 D的效果最好。

Claims

权 利 要 求 书
1. 一种中草药提取物, 其特征在于, 是 10~50 重量份雪莲花, 10〜50 重量份肉苁蓉及 20〜60重量份黄芪的水或溶剂提取物, 所述溶剂选自曱醇、 乙醇、 异丙醇、 正丁醇、 乙二醇、 1 , 2-丙二醇、 1 , 3-丙二醇、 1 , 3-丁二醇、 丙酮、 乙酸乙酯或其组合。
2. 如权利要求 1 所述的中草药提取物, 其特征在于, 所述的提取选自 浸泡、 煎煮、 回流、 渗漉或其组合。
3. 如权利要求 1或 2所述的中草药提取物, 其特征在于, 所述中草药 提取物形式选自溶液剂、 粉剂、 软膏剂、 膜剂或膏霜。
4. 一种具有抗衰老作用的中草药组合物, 其特征在于, 包含权利要求
1- 3任一所述的中草药提取物。
5. 如权利要求 4所述的中草药组合物在化妆品中的应用。
6. 一种中草药提取物的制备方法, 包括如下步骤:
将 10〜50重量份雪莲花, 10~50重量份肉苁蓉及 20-60重量份黄芪用水 或溶剂提取, 所述溶剂选自水、 甲醇、 乙醇、 异丙醇、 正丁醇、 乙二醇、 1 ,
2-丙二醇、 1 , 3-丙二醇、 1 , 3-丁二醇、 丙酮、 乙酸乙酯或其組合。
7. 如权利要求 6所述的方法, 其特征在于, 还包括:
过滤, 并重复提取滤渣, 合并滤液;
将滤液浓缩至药材总量的 2倍量左右 (V/W ), 倍量是指溶剂体积与药 材总重量的比值, 其中溶剂体积的单位是 ml, 药材总重量的单位是 g;
再进行醇沉;
醇沉上清液回收溶剂。
8. 如权利要求 6或 7所述的方法, 其特征在于, 所述的醇沉采用选自 曱醇、 乙醇、 异丙醇、 正丁醇、 乙二醇、 1 , 2-丙二醇、 1, 3-丙二醇、 1, 3- 丁二醇或其组合的醇。
9. 如权利要求 6~8任一所述的方法制备的中草药提取物。
10. 如权利要求 9所述的中草药提取物, 其特征在于, 所述中草药提取 物形式选自溶液剂、 粉剂、 软膏剂、 膜剂或膏霜。
11. 一种具有抗衰老作用的中草药组合物, 其特征在于, 包含权利要求 9或 10所述的中草药提取物。
12. 如权利要求 11所述的中草药提取物在化妆品中的应用。
13. 如权利要求 5或 12所述的应用, 其特征在于, 所述化妆品是美容 护肤霜、 眼霜、 面膜、 洗面奶、 柔肤水或精华素。
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