Trans-resveratrol, a phytoalexin produced by a variety of plants, has been shown to inhibit oxidative enzymes in an animal cell system. Its effect on several oxidative and antioxidative enzymes from plants was investigated using in vitro assays. Trans-resveratrol inhibited superoxide dismutase, lipoxygenase, catalase, peroxidase, polyphenol oxidase, and 1-aminocyclopropane-1-carboxylic acid oxi...

Polyphenol oxidase (PPO) (E.C. 1.14.18.1) also known as phenolase, catechol oxidase, catecholase, monophenol oxidase, o-diphenol oxidase and orthophenolase based on their substrate specificity, is widely distributed in plants and fungi (Mayer, 2006; Kaur et al., 2010; Asha et al., 2011; Pawar and Ingle, 2014). PPOs have been purified and characterized from a wide range of plant species and a va...

The commercialization of mushrooms is critical because they have a short shelf life. For this reason, we investigated the effect agar-agar and egg white protein on weight loss, polyphenol oxidase catalase, content, total phenolics, antioxidant capacity, respiration rate, ethylene production storability button mushrooms. Our findings suggested that treatment edible coating delayed remarkably sen...

The results of studies on certain enzymes, hemin chromoproteins, and iron and copper in the tissues of normal, copper-deficient, and iron-deficient swine are reported in this paper. It has been suggested that the enzymes cytochrome oxidase (l-3), uricase (4), tyrosinase (5), plasma polyphenol oxidase (coeruloplasmin) (6), glutathione oxidase (7), and butyryl coenzyme A dehydrogenase (8) either ...

Seeds have well-established passive physical and chemical defense mechanisms that protect their food reserves from decay-inducing organisms and herbivores. However, there are few studies evaluating potential biochemical defenses of dormant seeds against pathogens. Caryopsis decay by the pathogenic Fusarium avenaceum strain F.a.1 was relatively rapid in wild oat (Avena fatua L.) isoline "M73," w...

Novel carbon fiber enzyme electrodes were constructed and evaluated. Fabrication of was performed via electrochemical deposition a conducting matrice composed polythiophene polypyrrole (PTh–PPy) onto substrates. The entrapped into the matrix during electropolymerization. Resultant biosensors represented higher kinetic parameters, Vmax Km, in comparison to PPy matrice, which are 2.471 ± 0.150 m...

investigation into total phenolics and their spectrum in the buds and corms of saffron crocus and a study of polyphenol oxidase changes in the apical bud during different stages of growth and development showed that changes in the growth and development of the apical bud may be related to changes in the composition of phenolics in the corm. a sudden intense change in content and kind of phenoli...

Investigation into total phenolics and their spectrum in the buds and corms of saffron Crocus and a study of polyphenol oxidase changes in the apical bud during different stages of growth and development showed that changes in the growth and development of the apical bud may be related to changes in the composition of phenolics in the corm. A sudden intense change in content and kind of ph...