Polyphenol Oxidase
Characterisation of polyphenol oxidase from Melissa officinalis L subsp officinalis (lemon balm)
... Polyphenol oxidase (PPO) from Melissa officinalis L. subsp. officinalis (lemon balm) was partially purified by am- monium sulphate precipitation and dialysis; and then it was characterised in detail in ...
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Purification and Partial Characterization of Polyphenol Oxidase from Sapodilla Plum (Achras sapota)
... by polyphenol oxidase (monophenol, o-diphenol, oxygen oxidoreductase; EC ...the polyphenol oxi- dase from avocado was isolated and partially purified in the presence of TX-114, showing ...
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Phenolic Profiles and Polyphenol Oxidase (PPO) Gene Expression of Red Clover (Trifolium pratense) Selected for Decreased Postharvest Browning
... Red clover (Trifolium pratense L.) is a legume forage abundant in phenolic compounds. It tends to brown when cut for hay, due to oxidation of phenolic compounds catalyzed by polyphenol oxidase (PPO), and ...
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Thrombolytic potential of Punica granatum and lipid profile: A correlation analysis
... The level of enzymic antioxidants was found to be higher in aril of pomegranate than the rind. Also, amount of catalase was higher than any other enzymic antioxidants that were studied. No significant difference was ...
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Direct Electron Transfer of Polyphenol Oxidase on Carbon Nanotube Surfaces: Application in Biosensing
... Parts (a) and (b) of Figure 4 are representative cyclic voltammograms observed upon SWCNTs/GC and bare GC electrodes in 0.05 M PBS, respectively. These voltammograms recorded in the presence of 5 mg/ml of enzyme ...
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Effect of exogenous hydrogen peroxide on peroxidase and polyphenol oxidase activities in cajanus cajan (l ) millsp detached leaves
... Plants have developed specific antioxidative defense enzymes including peroxidase (POD, EC 1.11.1.7) and polyphenol oxidase (PPO, EC 1.10.3.1) to control the rapidly increasing ROS under various ...
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Evaluation of anti oxidant properties of Foliose lichens
... Polyphenol oxidase activities were found in lichenized ascomycetes belonging to different taxonomic ...soluble polyphenol oxidases were present only in peltigerous lichens: activity that could be ...
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Polyphenol Oxidase Activity and Colour Changes of ‘Starking’ Apple Cubes Coated with Alginate and Dehydrated with Air
... The objective was to study the effect of alginate coating on polyphenol oxidase (PPO) activity and colour of ‘Starking’ apple cubes during dehydration with hot air. Apple cubes were dehydrated at 20˚C, 35˚C ...
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Polyphenol Oxidase Inactivation by Microwave Oven and Its Effect on Phenolic Profile of Loquat (Eriobotrya japonica) Fruit
... nol oxidase inactivation was carried out using a response surface methodology to establish the optimal conditions of ...Thus, polyphenol oxidase inactivation by microwave energy preserved the ...
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Changes in antioxidant and antibacterial activities as well as phytochemical constituents associated with ginger storage and polyphenol oxidase activity
... Epicatechin, kaempferol, cinnamic acid, and tannic acid were not detected in Halia bentong rhizome samples stored at 15 °C. Ferulic acid was not detected in Halia ben- tong rhizomes stored at 15 °C for 8 months. Cinnamic ...
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Quantitative Gene Expression of Peroxidase, Polyphenoloxidase and Catalase as Molecular Markers for Resistance against Ralstonia solanacearum
... (POD), polyphenol oxidase (PPO) and catalase (CAT) genes were quanti- fied by real-time reverse transcription RT_qPCR analysis at 0, 3, 6, 12, 24, 48, 72 and 96 hours after inoculation of the three tested ...
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Selecting plants with increased total polyphenol oxidases in the genus Trifolium
... Expression analysis. The mean content of PPO transcripts expressed by each transcribed gene is presented in Table 5. The results are expressed as the number of copies produced by a particular gene. The lowest ...
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Effect of ryegrass ( Lolium multiflorum L.) growth on degradation of phenanthrene and enzyme activity in soil
... 2005). Polyphenol oxidase is an important oxidoreduc- tase in soils and can catalyse the degradation and transformation processes of aromatic compounds (Andrew and John 2000, Miya and Friestone ...of ...
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Foliar Application of Salicylic Acid Stimulates Flowering and Induce Defense Related Proteins in Finger Millet Plants
... Similarly polyphenol oxidase activity was induced by SA treatment in finger millet ...produce polyphenol around the site of ...that polyphenol oxidase activity was induced in cucumber ...
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Abstract BALAKRISHNAN V., VENKATESAN K., RAVINDRAN K.C., KULANDAIVELU G. (2005): Protective mechanism in UV-B treated Crotalaria juncea L. seedlings . Plant Protect. Sci., 41 : 115–120.
... in polyphenol oxidase activity in UV-B treated seedlings was observed in our studies and is responsible for the oxidation of phenolic compounds (SHEEN & CALVERT ...
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The Cardiovascular Benefits of Polyphenol Compounds
... the polyphenol family due to being endowed with a wide range of beneficial impacts on ...the polyphenol group all the more intriguing, namely phenolics, stillbenes, and flavonoids all enjoy properties that ...
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Two cytosolic components of the human neutrophil respiratory burst oxidase translocate to the plasma membrane during cell activation
... the oxidase as determined by superoxide ...cell-free oxidase system arachidonate-dependent but membrane-independent precipitation of the cytosolic ...
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A new Bioelectrochemical Method for Detect Nitrite (NO2-) and Hydroxylamine (NH2OH) by Using of Hydroxylamine Oxidase (HAO) and Modified Electrode with Zirconia Nanoparticles
... point potentials have not been assigned to specific hemes [8-13]. This enzyme belongs to the family of oxidoreductases, specifically those acting on other nitrogenous compounds as donors with oxygen as acceptor [7-9]. ...
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CURCUMIN, A POTENT ANTICARCINOGENIC POLYPHENOL – A REVIEW
... Turmeric the common name for Curcuma longa is an Indian flavor inferred from the rhizomes of the plant and has a long history of utilization in Ayurvedic medication. Curcumin, the principal curcuminoid found in turmeric, ...
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Survival and mitochondrial function in septic patients according to mitochondrial DNA haplogroup
... Sepsis is a common, expensive, and frequently fatal condi- tion [1,2]. The physiopathologic mechanisms of sepsis are not well known, but it has been proposed that organ dys- function during sepsis is associated with ...
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