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Showing 1 to 20 of 59 for “"Gallic acid."”.
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Metabolism of Gallic Acid by Eubacterium Oxidoreducens
… These reactions cleaved the six carbon acid to 3-hydroxybutyryl-CoA yielding acetate and butyrate as end products. A number of key enzymes involved in $\beta$-oxidation and substrate level phosphorylation were demonstrated in cell extracts.
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Electrochemical determination of gallic acid in food matrices using novel materials.
Gallic acid (GA), as an endogenous polyphenol, has shown many different important properties that have influenced its use in the food and pharmaceutical industry. These properties include its antioxidant, anti-cancer, anti-tumor, anti-HIV and anti-ulcerogenic activities. The most commonly used GA …
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Study of Copper Electrodeposition on Ruthenium Oxide Surfaces and Bimetallic Corrosion of Copper/Ruthenium in Gallic Acid Solution
… (CMP) process in semiconductor fabrication. Gallic acid is used in post CMP slurry solution and is known well as antioxidant which is supposed to oxidize itself to prevent other species from oxidizing. However, in this study under the observation of Cu microdot corrosion test, copper was …
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Role and mechanism of action of the anthocyanin, delphinidin, in protecting endothelial cells against oxidative stress
… rapidly to simple phenolic compounds, including gallic acid. Electron paramagnetic resonance spectroscopy indicated that, if anything, both delphinidin and gallic acid were pro-oxidant rather than antioxidant. High concentrations of both delphinidin and gallic acid induced rapid morphological …
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Phytochemical Investigation and Bioactivity Assessment of Medicinal Plant from Northern Nigeria
… of two antibacterial compounds namely gallic acid and pyrogallol. The Minimum Inhibitory Concentration for pyrogallol and gallic acid against S. aureus growth are 508 and 753 μM, while against MRSA growth are 254 and 2032 μM, respectively. A growth Inhibition assay showed the activity …
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Development Of Active Packaging With Antimicrobial Activity
… properties.</p> <p>In our study, the chitosan-gallic acid edible films and chitosan-essential oil coatings with antimicrobial activity, as well as active packaging with chlorine dioxide sachet were developed. The results show that the incorporation of gallic acid significantly increased the …
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Antioxidant activity, protective effects and absorption of polyphenolic compounds
… compounds of which 19 were identified, with gallic acid, the flavin-3-ols and anthocyanins being the most abundant. Preparative HPLC was used in an effort to isolate the antioxidant components in red wine and 60 aliquots were collected. Each wine fraction was analysed for total phenolics, …
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Doxorubicin combined with phytochemicals as pro-apoptotic agents and protein kinase inhibitors for the treatment of acute myeloid leukaemia
… distributed in plants and fruits (α-mangostin, gallic acid and vitamin C), singly and in combination with doxorubicin (Dox) in the relapsed AML cell line MOLM-13. CyQUANT proliferation assay was used to determine their effects on cell viability. Flow cytometric analysis of cell apoptosis and …
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The recovery of phenolic antioxidants from fruit processing wastewaters of South Africa by Chipo H. Mupure.
… concentration of total phenols of 399.52 mgIL gallic acid equivalents (GAE) and apple wastewater AWl had the lowest concentration of 7.61 mg/L GAE. The fruit processing wastewaters also contained sugars and complex carbohydrates.
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A study of compounds having antibacterial activity isolated from Rubus pinfaensis Levl. et Vant.
… biological monitoring. Four known triterpenoids, gallic acid, beta-sitosterol and three novel triterpene glycosides have been isolated and characterised. One new compound after enzymatic hydrolysis yielded a new aglycone, which has been named pinfaensic acid. Acylation and methylation yielded the …
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Kinetic studies of the spasmogenic effects of serotonin and isolates from Byrsonima crassifolia leaves on rat fundus
… indicated that the activity of a 2% acetic acid extract of eaves (HOAcE) could be split into two types: (i) high-efficacy, low-potency, n-butanol-extracted, pargyline- and 1-(1-naphtylpiperazine) (1-NP)-sensitive, atropine-insensitive activity, and (ii) low-efficacy, high-potency, ethyl …
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Effect of pomegranate extracts on apoptosis and cell cycle in haematological malignancies.
… were enriched in ellagitannins, ellagic acid, and hydroxycinnamic acid derivatives but depleted in anthocyanins.The potential protective effect of a number of pure compounds that were either identified in the acetonitrile fraction of PJ were present in the other fractions of PJ or have …
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Influence of dietary antioxidants on luminal nitrite chemistry under conditions simulating the gastro-oesophageal junction
… species and (in the presence of ascorbic acid) nitric oxide (NO), which are both potentially mutagenics. Thus this study aimed to investigate the influence of ascorbic acid (AA), sodium thiocyanate (NaSCN), oxygen (O2) and pH (1.5, 2.5 and 3.0) on the nitrite chemistry in simulated gastric …
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A MUSCADINE GRAPE EXTRACT PREVENTS HYPERTENSION-INDUCED CARDIAC AND VASCULAR DAMAGE IN ASSOCIATION WITH ANTI-FIBROTIC AND ANTIOXIDANT MECHANISMS
… are abundant in polyphenols including ellagic acid, gallic acid, and catechins. Previous studies demonstrated that muscadine grapes reduce cell proliferation and decrease inflammation. In these studies, we investigated the effects of a muscadine grape extract (MGE) on angiotensin II (Ang …
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Allelopathic effects of ferulic, gallic, and vanillic acids on corn (Zea mays L.)
Studies on the activity of femlic, gallic, and vanillic acids on germination and growth of corn (Zea mays L.), radish (Raphanus sativus L.), and peanut (Arachis hypogaea L.) showed that the inhibitory effects of these acids were concentration and growth variable dependent. Ten days after treatment, …
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Monomeric Ellagitannins in Oaks and Sweetgum
… plant phenolics characterized by biaryl-coupled gallic acid moieties esterified to a D-glucose core. They are widely distributed through higher plants. In the case of oaks, ellagitannin concentrations in heartwood can reach up to 10% (dry wt. basis). These secondary metabolites are not only …
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Electrodeposition of Copper on Ruthenium Oxides and Bimetallic Corrosion of Copper/Ruthenium in Polyphenolic Antioxidants
… nature enhances bimetallic corrosion of Cu. Gallic acid (3,4,5 - trihydroxybenzoic acid) was chosen as model compound. A mechanism has been proposed and validity of the mechanism was checked with other antioxidants. Results show that understanding the chemical structure of antioxidants is …
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Interaction of milk proteins with kiwifruit and mixed fruit polyphenols : A dissertation submitted in partial fulfilment of the requirements for the Degree of Master of Science in Food Innovation at Lincoln University
… smaller amounts of other phenols such as caffeic acid, gallic acid, protocatechuic acid, syringic acid, rutin and quercetin. The HPLC extraction was carried out in various step using 70% acetone followed by 8% TCA precipitation. Addition of milk to theses extracts showed a decrease in antioxidant …
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ΠΟΡΕΙΑ ΧΗΜΙΚΗΣ ΑΠΟΣΑΘΡΩΣΗΣ ΜΗΤΡΙΚΩΝ ΥΛΙΚΩΝ
… WITH DISTILED WATER AND SOLUTIONS (0,01M) OF GALLIC, CITRIC, SULFURIC, LACTIC AND SALICYLIC ACIDS, IN ORDER TO STUDY THEIR WEATHERING EFFECTIVENESS . FOR THIS, THE MONTHLY AMOUNTS OF FE AND AL LEACHED WERE DETERMINED FOR A PERIODOF 12 MONTHS. GENERALLY, FROM THE REAGENTS USED CITRIC ACID WAS …
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