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Peroxidase-Polyphenol Oxidase Association in Dioscorea esculenta J. Okpuzor and O. Omidiji D epartm ent of Biological Sciences, University of Lagos, A koka Campus, Lagos, Nigeria Z. Naturforsch. 53c, 957-960 (1998); received February 24/June 8, 1998 Dioscorea esculenta, Post - H arvest Browning, Peroxidase, Polyphenol Oxidase, G el Filtration A crude enzym e extract from Dioscorea esculenta var. fasiculata tissue subjected to ion exchange chrom atography on D EA E-Sephadex A-50 column. This procedure resolved the extract into two main protein peaks one of

INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING Volume 5 2007 Article A46 Inhibition Kinetic of Ocimum basilicum L. Polyphenol Oxidase Serap Dogan∗ Pinar Turan† Mehmet Dogan‡ Mahir Alkan∗∗ Oktay Arslan†† ∗Balikesir University, sdogan@balikesir.edu.tr †Balikesir University, pturan@balikesir.edu.tr ‡Balikesir University, mdogan@balikesir.edu.tr ∗∗Balikesir University, malkan@balikesir.edu.tr ††Balikesir University, oktay@balikesir.edu.tr ISSN 1542-6580 Inhibition Kinetic of Ocimum basilicum L. Polyphenol Oxidase∗ Serap Dogan, Pinar Turan, Mehmet Dogan, Mahir

Excess Boron Reduces Polyphenol Oxidase Activities in Embryo and Endosperm of Maize Seed during Germination Hülya Ölçer* and İsmail Kocaçalışkan Dumlupınar University, Faculty of Science and Arts, Department of Biology, Kütahya, Turkey. Fax: +902742652056. E-mail: holcer_2000@yahoo.com * Author for correspondence and reprint requests Z. Naturforsch. 62c, 111Ð115 (2007); received July 18/September 25, 2006 The effects of increasing concentrations of boron (0, 0.1, 1, 10 and 20 mm) as boric acid on the rate of germination and polyphenol oxidase activities in

INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING Volume 5 2007 Article A76 Partial Purification and Characterization of Polyphenol Oxidase Extracted from Agaricus bisporus (J.E.Lange) Imbach Hicham Gouzi∗ Abdelhafid Benmansour† ∗Abou Bekr Belkaı̈d University, gouzi h@yahoo.fr †Abou Bekr Belkaı̈d University, ben afid13@yahoo.fr ISSN 1542-6580 Partial Purification and Characterization of Polyphenol Oxidase Extracted from Agaricus bisporus (J.E.Lange) Imbach∗ Hicham Gouzi and Abdelhafid Benmansour Abstract Polyphenol oxidase (PPO) from mushrooms (Agaricus

References Aengwanich W., Suttajit M. (2010). Effect of polyphenols extracted from Tamarind (Tamarindus indica L.) seed coat on physiological changes, heterophil/lymphocyte ratio, oxidative stress and body weight of broilers (Gallus domesticus) under chronic heat stress. Anim. Sci. J., 81: 264-270. Akbarian A., Golian A., Kermanshahi H., Farhoosh R., Raji A.R., De Smet S., Michiels J. (2013). Growth performance and gut health parameters of finishing broilers supplemented with plant extracts and exposed to daily increased temperature. Span. J. Agric. Res., 11

activation. Biochemistry 41 : 7743-7750. Fraga CG, Galleano M, Verstraten S, Oteiza PI. (2010). Basic biochemical mechanisms behind the health benefi ts of polyphenols. Mol Asp Med 31 : 435-445. Franck T, Kohnene S, Grulke S, Neven, P, GoutmanY, Peters F, Pirotte B, Deby-Dupont G, Serteyn D.(2008). Inhibitory eff ect of curcuminoids and tetrahydrocurcuminoids on equine activated neutrophils and myeloperoxidase activity. Physiol Res 57 : 577-587. Jančinova V, Drabikova K, Nosaľ R, Račkova L, Majekova M, Holomańova D.(2006). The combined luminol

mass spectroscopy. Food Chem 2006;97:1-11. Heim KE, Tagliaferro AR, Bobilya DJ. Flavonoid antioxidants: chemistry, metabolism and structure-activity relationships. J Nutr Biochem 2002;13:572-84. Minussi RC, Rossi M, Bologna L, Cordi L, Rotilio D, Pastore GM, Durán N. Phenolic compounds and total antioxidant potential of commercial wines. Food Chem 2003;82:409-16. Rice-Evans C, Miller N, Paganga G. Antioxidant properties of phenolic compounds. Trends Plant Sci 1997;2:152-9. Higdon JV, Frei B. Tea catechins and polyphenols: health effects, metabolism, and

Isoceroptene, a Novel Polyphenol from Pityrogramma triangularis Kenneth R. Markham Chemistry Division, DSIR, Petone, New Zealand Christian Vilain Department of Chemistry. University of Liege, Belgium Eckhard Wollenweber, Volker H. Dietz* Institut für Botanik der Technischen Hochschule, Darmstadt, West Germany Gerhard Schilling Organisch-Chemisches Institut der Universität, Heidelberg, West Germany Z. Naturforsch. 40c, 317—320 (1985); received November 14, 1984 Pityrogramma triangularis, Pteridaceae, Goldback Fern, Isoceroptene, 13C-NMR Isoceroptene, a

. A. Osuntogun, S. A. Adewusi, J. O. Ogundiwin, C. C. Nwasike, Effect of cultivar, steeping, and malting on tannin, total polyphenol, and cyanide content of Nigerian sorghum. Cereal Chemistry , 66. (1989) 87–89. [13] P. M. Pradeep, Y. N. Sreerama, Impact of processing on the phenolic profiles of small millets: Evaluation of their antioxidant and enzyme inhibitory properties associated with hyperglycemia. Food Chemistry , 169. (2015) 455–463. [14] F. O. Sade, Proximate, Antinutritional factors and functional properties of processed pearl millet (Pennisetum glaucum

1 Introduction Berry fruits have been regarded as rich sources of nutrients and phytochemicals, such as phenolic acids, flavonoids, and anthocyanins. These phytochemicals have been reported to exhibit powerful antioxidant, anti-inflammatory, anticancer, antimicrobial, and anti-aging activities [ 1 , 2 , 3 ]. Additionally, some polyphenols have been found to act as neurohormetics by stimulating several cellular signaling pathways [ 4 , 5 , 6 , 7 ]. Hence, long-term intake of berries rich in nutrients and phytochemicals reduces the incidence of cardiovascular and