Wen Cheng Zhang Gerald L. Riskowski Yung Chung Chang Wai Kun Chan Han Ju Sun Cheng Chi Lin Audrey Chingzu Chang
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1 Wen Cheng Zhang Gerald L. Riskowski Yung Chung Chang Wai Kun Chan Han Ju Sun Cheng Chi Lin Audrey Chingzu Chang
2 Outline Introduction Phenolic acids Indigo plants Purpose Materials and Methods Results and discussion Conclusions
3 Phenolic acids Phenolic acids are secondary metabolites of plants. (Mattila and Kumpulaninen, 2002) Mainly in seeds, leaves, roots and stalk. (Shahidi and Wanasundara, 1992)
4 Phenolic acids Antibacterial Lowering blood pressure Increased white blood cells Excite the central nervous system Eliminate free radicals DPPH Prevent cardiovascular disease, diabetes and cancer etc. (Evans et al., 1995; Lodovici et al., 2001)
5 Indigo plants Indigo plants refer to the plants that can be indigo dye. Traditional Chinese herb (indigowoad root ) : Isatis indigotica Fort. Strobilanthes cusia (Ness) O. ktze United States common weeds: Baptisia tinctoria.
6 Indigowoad root Isatis indigotica Fort. Cruciferae Dry root Strobilanthes cusia (Ness) O. ktze Acanthaceae Dry stalk 北板藍根.pdf
7 Indigowoad root Antibacterial and antiviral Detoxification Improve immune function Antitumor
8 Baptisia tinctoria. Fabaceae Dry root Anti-inflammation Aid digestion Treat periodontal disease and sore throat Enhance immune activity
9 Purpose Comparison of total phenol and phenolic acids composition of native Texas wild indigo root and Asian indigowoad root.
10 Phenolic acids Hydroxybenzoics Gallic acid Vanillic acid Syringic acid Hydroxycinnamics p-coumaric acid Ferulic acid (Mattila and Kumpulainen, 2002)
11 Materials and Methods Extraction Soluble phenolic acid 80 % Methonal extract Bound phenolic acids - alkaline hydrolysis 10M NaOH in N 2 gas cold mixed solution (diethyl ether and ethyl acetate) extract Bound phenolic acids - acid hydrolysis HCl (37%) cold mixed solution (diethyl ether and ethyl acetate) extract
12 Materials and Methods Analysis of total Phenol Folin & Ciocalteu s phenol reagent Analysis of phenolic acids High-performance liquid chromatography
13 Results and discussion 13
14 Total phenol Total phenol content mg/g (d.w.) 20 a wild Baptisia indigo tinctoria root b Shop a d b d c a a a c b bc cd b d c d d c Shop 2 Shop 3 Shop 4 Fig 1. Comparison of total phenolic content in Baptisia tinctoria root and indigowoad root from different origin. 14
15 Phenolic acids - Methanol extract Phenolic acids content mg/100g (d.w.) 60 Wild Baptisia indigo tinctoria root Shop 2 50 Shop Fig 2. Comparison of phenolic acids content in Baptisia tinctoria root and indigowoad root methanol extract.
16 Phenolic acids - Alkaline hydrolysis Phenolic acids content mg/100g (d.w.) 80 Wild Baptisia indigo tinctoria root 70 Shop 2 60 Shop Fig 3. Comparison of phenolic acids content in Baptisia tinctoria root and indigowoad root after alkaline hydrolysis.
17 Phenolic acids - Acid hydrolysis Phenolic acids content mg/100g (d.w.) Wild Baptisia indigo tinctoria root Shop 2 Shop 4 Fig 4. Comparison of phenolic acids content in Baptisia tinctoria root and indigowoad root after acid hydrolysis.
18 Conclusions Total phenol content of baptisia tinctoria root was significantly higher than commercial indigowoad root (Total ± 0.51 mg GAE / g d.w.). Composition of phenolic acids in baptisia tinctoria root and commercial indigowoad root, whether the constituents or the level of each constituent were different.
19 Conclusions Baptisia tinctoria root extract contains gallic acid (40.19 ± mg / 100 g d.w.) and commercial indigowoad root doesn t contains gallic acid. Phenolic compounds analysis of indigowoad root samples bought from different stores, their phenolic compounds constituents were all the same, but the levels of each constituent were significantly different.
20 Thank you for your attention
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