Content of Antioxidative Caffeoylquinic Acid Derivatives in Field-GrownLigularia fischeri(Ledeb.) Turcz and Responses to Sunlight

2012 ◽  
Vol 60 (22) ◽  
pp. 5597-5603 ◽  
Author(s):  
Sang Min Kim ◽  
Je-Seung Jeon ◽  
Suk Woo Kang ◽  
Yu-Jin Jung ◽  
Lin Na Ly ◽  
...  
Keyword(s):  
Caffeoylquinic Acid

Caffeoylquinic acid derivatives from two Brazilian Vitex species

2008 ◽  
Vol 36 (4) ◽  
pp. 312-315 ◽  
Author(s):  
Suzana G. Leitão ◽  
Eduardo N. da Fonseca ◽  
Tereza Cristina dos Santos ◽  
Flavio França ◽  
Franco Delle Monache
Keyword(s):  
Caffeoylquinic Acid ◽  
Vitex Species

scholarly journals Molecular Docking Senyawa Ekstrak Etanol Daun Kenikir (Cosmos caudatus) Sebagai Inhibitor Il-6 Dalam Respon Inflamasi

2021 ◽  
pp. 138
Author(s):  
Ratu Wifaira Azzahra ◽  
Niky Murdaya ◽  
Adnan Aly Al Shofwan ◽  
Erlangga Ramadan ◽  
Savira Dwi Utami
Keyword(s):  
Molecular Docking ◽  
Interleukin 6 ◽  
In Silico ◽  
Ames Test ◽  
Caffeoylquinic Acid ◽  
Cosmos Caudatus

Inflamasi merupakan reaksi alami tubuh untuk melindungi diri dari patogen menyebab penyakit. Interleukin-6 (IL-6) berperan sebagai sitokin pro-inflamasi dan antiinflamasi yang dikeluarkan oleh sel T dan makrofag untuk merangsang respon imun saat terjadi infeksi. Pada penelitian ini, dilakukan studi in silico ekstrak etanol daun kenikir (Cosmos caudatus) sebagai anti-inflamasi yang didasarkan pada afinitas terhadap Interleukin-6 (IL-6) dengan menggunakan metode molecular docking secara in silico. Penelitian ini meliputi simulasi penambatan molekuler kandungan senyawa ekstrak etanol daun kenikir terhadap reseptor IL-6 (PDB ID : 1ALU) dan prediksi profil farmakokinetik dan toksisitas menggunakan server Pre-ADMET. Hasil penelitian menunjukkan bahwa diperoleh empat senyawa potensial, yaitu C1 (Kaempferol), C2 (1-Caffeoylquinic acid, C3 (Procyanidin B1), dan C5 (Quercetin-3-O-pentoside).Keempat senyawa tersebut memiliki nilai ?G dan Ki yang lebih baik dibandingkan dengan ligan alami. Nilai ?G; Ki senyawa uji tersebut, yaitu berturut-turut (-5,29 Kkal/mol; 133,31 uM), (-6,02 Kkal/mol; 38,44 uM), (-5,38 Kkal/mol; 114,24 uM), dan (-5,46 Kkal/mol; 99,50 uM). Hasil PreADMET keempat senyawa tersebut memiliki daya adsorpsi yang baik sehingga dapat dipertimbangkan dalam pembuatan sediaan rute oral. Hasil ames test menunjukkan bahwa C1 dan C2 bersifat mutagenik, sedangkan C3 dan C4 non mutagenik.

scholarly journals Effect of Artificial Shading and Temperature on Radical Scavenging Activity and Polyphenolic Composition in Sweetpotato (Ipomoea batatas L.) Leaves

2003 ◽  
Vol 128 (2) ◽  
pp. 182-187 ◽  
Author(s):  
Md. Shahidul Islam ◽  
Makoto Yoshimoto ◽  
Koji Ishiguro ◽  
Shigenori Okuno ◽  
Osamu Yamakawa
Keyword(s):  
Phenolic Compounds ◽  
Ipomoea Batatas ◽  
Phenolic Content ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Cultivar Differences ◽  
Total Phenolic ◽  
Scavenging Activity ◽  
Caffeoylquinic Acid ◽  
Phenolic Components

The phenolic content and the radical scavenging activity were compared in leaves of sweetpotato (Ipomoea batatas L.) cultivars Shimon-1, Kyushu-119 and Elegant Summer grown under different temperature and shading conditions. Compared to cultivar differences, there was less effect of temperature and shading on the total phenolic content in sweetpotato leaves, however certain polyphenolic components differed widely among the treatments. The positive correlation between the radical scavenging activity and the level of total phenolics (r = 0.62) suggests that phenolic compounds are important antioxidant components of sweetpotato leaves. All the reverse-phase high-performance liquid chromatography (RP-HPLC) profiles of the cultivars tested showed peaks at the same retention times but peak areas of individual phenolic compounds differed with respective temperature and shading treatments. The phenolic compounds identified in the sweetpotato leaf were caffeic acid, chlorogenic acid, 4,5-di-O-caffeoylquinic acid, 3,5-di-O-caffeoylquinic acid, 3,4-di-O-caffeoylquinic acid, and 3,4,5-tri-O-caffeoylquinic acid. Most of the phenolic compounds were highest in leaves from plants grown at 20 °C without shading except 4,5-di-O-caffeoylquinic acid. The results indicate that growing leaves under moderately high temperatures and in full sun enhances the accumulation of phenolic components. These phenolic components have possible value in enhancing human health.

Spectroscopic Study of Caffeoylquinic Acid Derivatives of Cynara scolymus

Planta Medica ◽  
1986 ◽  
Vol 52 (06) ◽  
pp. 529-530 ◽  
Author(s):  
M. Puigmaciá ◽  
T. Adzet ◽  
M Ruviralta ◽  
J. Iglesias
Keyword(s):  
Spectroscopic Study ◽  
Cynara Scolymus ◽  
Caffeoylquinic Acid ◽  
Derivatives Of

scholarly journals The Free Radical Scavenging and Anti-Isolated Human LDL Oxidation Activities of Pluchea indica (L.) Less. Tea Compared to Green Tea (Camellia sinensis)

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Kittipot Sirichaiwetchakoon ◽  
Gordon Matthew Lowe ◽  
Griangsak Eumkeb
Keyword(s):  
Free Radical ◽  
Green Tea ◽  
Camellia Sinensis ◽  
Hypochlorous Acid ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Ldl Oxidation ◽  
Caffeoylquinic Acid ◽  
Dicaffeoylquinic Acid

Tea is one of the most popular beverages in the world. Camellia sinensis tea (CST) or green tea is widely regarded as a potent antioxidant. In Thailand, Pluchea indica (L.) Less. tea (PIT) has been commercially available as a health-promoting drink. This study focused on free radical scavenging activities of PIT, and its ability to protect isolated human low-density lipoproteins (LDL) from oxidation by chemical agents. A preliminary study to investigate the antioxidant nature of PIT was undertaken. These included common antioxidant assays involving 2,2-Diphenyl-1-picrylhydrazyl (DPPH), 2,2-azinobis-(3-ethylbenzothiazoline)-6-sulfonic acid (ABTS), hypochlorous acid (HOCl), and its potential to scavenge peroxynitrite. In separated experiments, isolated human LDL was challenged with either 2,2′-azobis(2-amidinopropane) dihydrochloride (AAPH), copper (Cu2+), or 3-Morpholinosydnonimine hydrochloride (SIN-1) to induce LDL oxidation. PIT exhibited antioxidant activity in all test systems and performed significantly better than CST in both DPPH (P<0.05; IC50PIT=245.85±15.83 and CST=315.41±24.18 μg/ml) and peroxynitrite scavenging assays. PIT at 75 μg/ml almost fully prevented the peroxynitrite over a 5 h period. Moreover, it displayed similar properties to CST during the antioxidation of isolated human LDL using AAPH, Cu2+, SIN-1, and hypochlorous acid scavenging assays. However, it revealed a significantly lower ABTS scavenging activity than CST (P<0.05; IC50PIT=30.47±2.20 and CST=21.59±0.67 μg/ml). The main constituents of the PIT were identified using LC-MS/MS. It contained 4-O-caffeoylquinic acid (4-CQ), 5-O-caffeoylquinic acid (5-CQ), 3,4-O-dicaffeoylquinic acid (3,4-CQ), 3,5-O-dicaffeoylquinic acid (3,5-CQ), and 4,5-O-dicaffeoylquinic acid (4,5-CQ). In conclusion, caffeoyl derivatives in PIT could play an important role in potent antioxidant properties. So, it may be further developed to be antioxidant beverages for preventing atherosclerosis and cardiovascular diseases associated with oxidative stress.

Antioxidant and Biocompatible 5‐ O ‐Caffeoylquinic Acid‐Based Composite Materials

2020 ◽  
Vol 389 (1) ◽  
pp. 1900086
Author(s):  
Severina Pacifico ◽  
Simona Piccolella ◽  
Silvio Naviglio ◽  
Michelina Catauro
Keyword(s):  
Composite Materials ◽  
Caffeoylquinic Acid
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