Antioxidative substance and composition and use thereof
A technology of antioxidant substances and cosmetic compositions, applied in the field of medicine, can solve the problems of anti-oxidation and anti-aging of white fresh extracts that have not been reported in literature
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Embodiment 1
[0079] Example 1 Extract preparation
[0080] Preparation of Radix Cortex Extract
[0081] Use 50L of 70% ethanol to carry out alcohol extraction on 5Kg of the pulverized powder of Cortex Cortex; reduce the above-mentioned alcohol extract to recover the solvent to a minimum; dry it under reduced pressure to dryness, and then obtain the extract of Cortex Cortex APD-002;
[0082] Preparation of Total Alkaloid Extract from Cortex Dictica
[0083] Use 50L pH2.0 hydrochloric acid aqueous solution to carry out acid water leaching to the crushed powder of 5Kg white fresh bark; then pass the above-mentioned extract solution through a cation exchange resin column; wash the cation resin adsorbed with alkaloids to neutrality; use 50% Ethanol and acetone eluted to separate the alkaloids; the eluate was dried to dryness to obtain the total alkaloids of the fresh bark APD-N2;
[0084] Qualitative experiment of alkaloid compounds: take a small amount of total alkaloids of white fresh bark ...
Embodiment 2
[0085] Example 2 Effects of Extracts on the Lifespan of C.elegans
[0086] Experimental Materials:
[0087] C.elegans (DH2) species, purchased from Institute of Molecular and Cell Biology National University of Singapore; SOD quantitative assay kit, purchased from Nanjing Jiancheng Bioengineering Company; resveratrol, purchased from Shanghai Junchuang Biotechnology Co., Ltd.; Trizol Reagent, purchased from Gibcol Company of the United States; APD-002, the extract of D. chinensis, and APD-N2, the total alkaloids of D. basilisk, were prepared by Example 1.
[0088] Experimental method: refer to the literature (Dillin A.et.al.Science, 2002, 298: 830-834. BartP.et.al Mechanisms of aging and Development, 2002, 123: 105-119) method, determine APD-002, APD - Effect of N2 on the growth lifespan of C. elegans. First, treat the adults with 50% sodium hypochlorite solution and 1M potassium hydroxide solution, collect eggs and culture them in S-medium, and after the adults develop to L1...
Embodiment 3
[0103] Example 3 The protective effect of the extract of Cortex alba on subacute aging model mice induced by D-galactose
[0104] Experimental animals: male SPF grade Kunming mice, purchased from Shanghai Slack Experimental Animal Co., Ltd., weighing 18-22g, raised in SPF grade animal room, 12h light / 12h dark, free intake of feed and water.
[0105] Experimental materials: resveratrol, purchased from Shanghai Junchuang Biotechnology Co., Ltd.; APD-002, the extract of white fresh bark, prepared in Example 1; D-galactose, purchased from Shanghai No. 2 Biochemical Reagent Factory; SOD, MDA Quantitative assay kits were purchased from Nanjing Jiancheng Bioengineering Company.
[0106] Experimental method: the mice were randomly divided into 5 groups, 10 in each group: (1) the control group was given normal saline; (2) the model group was given D-galactose at a dose of 80mg / kg; (3) the drug Group A, given a dose of D-galactose of 80mg / kg, while giving a dose of resveratrol of 20mg / ...
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