Caffeic acid

In this research, a single-step polymeric novel particle was synthesized from oak bark extract by nanoemulsion polymerization technique for the first time in the literature. It has been shown that the synthesized particles are achieved without losing any antioxidant and antibacterial properties of the oak bark extract. In this study, the p(OB) particles were reported for the first time and were characterized in terms of antioxidant, blood compatible, H2O2 scavenging, antibacterial, and antifungal potential to evaluate their use in biocompatible materials with drug release system potential.

13p dianmotminh02 03-05-2024 3 1   Download

Momordica charantia L. (bitter melon) is a plant belonging to the Cucurbitaceae family and is widely distributed in tropical and subtropical areas around the world. The aim of this study is to find out the antibacterial activity of the bitter melon (Momordica charantia L.) and investigate the chemical components of this plant.

7p viellison 28-03-2024 3 1   Download

Dược liệu Hy thiêm là phần trên mặt đất của cây Hy thiêm, được sử dụng làm thuốc điều trị đau lưng, gối, xương khớp, chân tay tê buốt. Bài viết trình bày định lượng đồng thời acid chlorogenic, acid caffeic và rutin trong dược liệu Hy thiêm bằng phương pháp HPLC.

10p viberbers 09-08-2023 10 4   Download

Nghiên cứu "Xác định tiềm năng ức chế virus dịch tả lợn châu Phi của một số hoạt chất thảo dược" được thực hiện nhằm đánh giá khả năng ức chế virus dịch tả lợn châu Phi (DTLCP) của 9 đơn chất có nguồn gốc thảo dược gồm: glycyrrhizin, berberine, emodin, ellagic acid, methyl gallate, caffeic acid, kaempferol, baicalein và naringenin. Thử nghiệm khả năng gây độc tế bào trên đại thực bào phế nang lợn cho thấy glycyrrhizin, berberine, ellagic acid, methyl gallate, kaempferol và naringenin không gây độc tế bào, emodin, caffeic acid và baicalein gây độc tế bào ở nồng độ 200 µM/ml.

8p kimtuyen05 27-03-2023 16 4   Download

Phenolic acids are one of the major fractions identified in the extract of several vegetable seed oils which present interesting antioxidant properties. A density functional theory (DFT) study on the antioxidant potential of eight phenolic acids including gallic, vanillic, isovanillic, ferulic, caffeic, β-coumaric, cinnamic, and chlorogenic acids, is presented in this paper.

12p vidudley 20-02-2023 3 2   Download

In this study, nine ferulic and caffeic acid-based 1,2,4 and 1,3,4 oxadiazole molecular hybrids were synthesized and their cytotoxic activity was evaluated mainly against Glioblastoma (GBM) cell lines. Compounds 1 and 5 exhibited the highest inhibitory activity against three different GBM cell lines (LN229, T98G, and U87), without toxicity to healthy human mesenchymal stem cells (hMSC). In addition, their cytotoxicity was also evaluated against three additional cancer cell lines and more inhibitory results were found than GBM cell lines.

22p lyhuyenthu 31-01-2023 6 2   Download

The effects of UV-B light force, exposure time and incubation period on producing caffeic acid derivatives and growth parameters in Echinacea purpurea callus and suspension culture were assessed. UV-B led to an increment of all growth parameters and antioxidant activity in callus and cell suspension and caffeic acid derivatives in cell suspension by increasing incubation period.

10p schindler 30-12-2021 9 0   Download

Rosmarinic acid is a water-soluble ester of caffeic acid and 3,4-dihydroxyphenyllactic acids, and is mainly found in plant species including Boraginaceae and Lamiaceae. In this research, we determined the inhibition property of rosmarinic acid on carbonic anhydrase isoenzymes I and II (hCA I and II) purified from human erythrocytes by using Sepharose-4B affinity column chromatography. hCA I and II isoenzymes were obtained with a yield of 57.9% and 67.2% and 76.5- and 509.3-fold purification of each isoenzyme, respectively.

9p langthannam 29-12-2021 9 0   Download

: The study aims to determine the secondary metabolites of Hypericum androsaemum L. extracts by liquid chromatographyhigh resolution mass spectrometry (LC-HRMS), and investigate the antioxidant and cytotoxic activities of the plant. Cytotoxic activity was evaluated by MTT assay, and apoptosis induction abilities on human prostate adenocarcinoma (PC-3), and hepatocellular carcinoma (Hep G2) cell lines. Accordingly, major secondary metabolites were found as hederagenin (762 ± 70.10 μg/g) in the leaves dichloromethane (LD), herniarin (167 ± 1.

38p tudichquannguyet 29-11-2021 8 2   Download

According to the results, CAPE decreased cell viability in the RKO cell line in a dose-dependent manner. Likewise, CAPE induced apoptotic cell death in approximately 40% of the RKO cells. Furthermore, CAPE treatment increased the Serine 15 (Ser15) and Serine 46 (Ser46) phosphorylation of p53, while decreased the survivin expression. The results suggested that CAPE induced apoptosis by regulating p53 phosphorylation, leading to inhibition of the survivin expression.

11p thiencuuchu 27-11-2021 3 1   Download

Caffeic acid O-methyltransferases (COMTs) play an important role in the diversification of natural products, especially in the phenylalanine metabolic pathway of plant. The content of COMT genes in blueberry and relationship between their expression patterns and the lignin content during fruit development have not clearly investigated by now.

16p vijichea2711 28-05-2021 11 1   Download

Hoạt tính chống oxy hóa của hợp chất 3,4-dihydroxy-cinnamic acid (caffeic acid) và 3-methoxy-4-hydroxycinnamic acid (ferulic acid) được nghiên cứu bằng phương pháp lý thuyết phiếm hàm mật độ (DFT). Ba cơ chế chống oxy hóa chính được nghiên cứu bao gồm cơ chế chuyển nguyên tử hydro (HAT), chuyển đơn điện tử (SET) và chuyển proton (PT).

8p caygaocaolon8 07-11-2020 53 2   Download

Pollen morphological and phytochemical comparative study of nine Saudi Arabian date palm (Phoenix dactylifera L.) cultivars has been carried out. Pollen grains are generally small in size, monad, hetero-polar, asymmetric, elliptic in equatorial view, mono-sulcate. Exine sculpturing is micro-reticulate. Little differences have shown in the pollen dimensions, muri thickness and lumen size. The phytochemical screening of date palm pollen grains revealed the presence of high amounts of phenolics and flavonoids and displayed good antioxidant capacity.

10p cothumenhmong3 22-02-2020 13 0   Download

Cardiomyocyte under hypoxia cause cell death or damage is associated with heart failure. Gap junction, such as connexin 43 play a role in regulation of heart function under hypoxia. Caffeic acid phenethyl ester (CAPE) has been reported as an active component of propolis, has antioxidative, anti-inflammatory antiproliferative and antineoplastic biological properties.

5p viwashington2711 04-12-2019 12 1   Download

The present study was conducted to characterize the polyphenolic contents of lettuce leaves grown under different night-time temperatures (4, 12, and 20 C) and cultivation durations (5, 15, and 20 days) using high performance liquid chromatography-tandem mass spectrometry (LC/MS/MS). The assay method was validated based on specificity, linearity, accuracy, precision, and the performance limit. The total polyphenolic contents were highest (2462.6 mg/kg) after transplantation at a night temperature of 20 C on day 20 and lowest (1132.7 mg/kg) at the same temperature on day 5.

7p trinhthamhodang1 16-11-2019 18 0   Download

Five cinnamic acid derivatives [cinnamic acid, 2,3-dibromo-3-phenyl-propanoic acid, 2,3-dibromo-3-(3-bromophenyl)-propanoic acid, 2,3-dibromo-3-(4-hydroxy-3-methoxyphenyl)-propanoic acid, and 2,3-dibromo-3-(3-bromo-4-hydroxy-5-methoxyphenyl)-propanoic acid] were found to be active against Staphylococcus aureus ATCC 25923, and their minimal bactericidal concentrations were determined (100 µg/mL).

9p sony2711 01-02-2019 15 1   Download

Caffeic acid, chlorogenic acid, methyl ester of chlorogenic acid, tricin, apigenin, 4’-O- methyl ether of apigenin (acacetin), quercetin and 3’-O-methyl ether of quercetin were isolated from the flowers of Lonicera japonica Thunb., Caprifoliaceae, grown as a medicinal plant for commercial purposes in Vietnam. Their chemical structures were determined by EIMS, 1 H NMR, 13 C NMR, DEPT, COSY, HMQC and HMBC.

6p uocvong04 24-09-2015 81 3   Download

Bacterial strains and culture conditions: Grape pomace is a natural product rich in dietary fiber and polyphenols. A major part of dietary polyphenols is not absorbed in the small intestine and can interact with colonic microbiota. The influence of grape polyphenols on Lactobacillus acidophilus CECT 903 growth was investigated through agar diffusion assays and cultures in liquid media. Grape phenolic extracts and some standards of phenolic compounds (caffeic acid, gallic acid, tannic acid, catechin, epicatechin, and quercetin) were assayed.

4p nhoxtom 29-09-2015 63 2   Download

Acetaldehyde, Acrylamide, Aflatoxin, Allyl isothiocyanate, Aniline, Benzaldehyde, Benzene, Benzo(a)pyrene, Benzofuran, Benzyl acetate, Caffeic acid, Catechol, Coumarin, 1,2,5,6-dibenz(a)anthracene, Estragole, Ethyl alcohol, Ethyl acrylate, Ethyl benzene, Ethyl carbamate, Furan and furan derivatives, Furfural, Heterocyclic amines, Hydrazines Hydrogen peroxide, Hydroquinone, d-limonene, 4-methylcatechol, Methyl eugenol, Psoralens, Quercetin glycosides, Safrole While this may seem frightening, the levels of these chemicals and pesticide residues found in food are too low to affect heal...

17p cao_can 02-01-2013 59 4   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Neuroprotective and anti-oxidant effects of caffeic acid isolated from Erigeron annuus leaf...

9p coxanh_5 28-10-2011 66 4   Download