An understanding of biochemical events of cold storage may lead to more effective methods of preventing apple fruits from ripening and keeping their quality. This study aimed at determining the level of reduced and oxidized forms of ascorbic acid, and the activity of ascorbate peroxidase, catalase, and superoxide dismutase enzymes changes in pulp of Golden delicious apple cultivar during cold s...

Background and objectives: Hesperetin flavanone is a natural bioflavonoid found abundantly in citrus fruits with antioxidant and anti-inflammatory properties. Nano sizing techniques improve the bioavailability of poorly soluble drugs such as hesperetin. Main feature of Parkinson's disease is the degeneration of dopaminergic neurons in the substantia nigra. The rate of oxidative...

Two proteins (P1 and P2, with weights of 57,500 and 27,500 respectively) were isolated from Euglena gracilis. Both proteins show cyanide-insensitive superoxide dismutase activity in the "classical" superoxide dismutase assay, using xanthine-xanthine oxidase as O2.- generator. If O2.- is generated chemically (autoxidation of reduced anthraquinone), photochemically (illuminated riboflavine) or pu...

carnation (dianthus caryophyllus l.) is one of the most important cut flowers in the world. themajority of thecarnation cultivars are sensitive to ethylene which affected the physiological and biochemical postharvest characteristics of these flowers.applying inhibitors of biosynthesis and action of ethylene is important factor to protect the display quality and extend postharvest life. in order...

conclusions consumption of ole after tumor transplantation reduced the tumor growth. on the other hand, owing to its highly-packed polyphenols, catalase and superoxide dismutase activities in tumor tissue were increased. results treatment with 150 and 225 mg/kg/day of ole reduced the tumor volume and weight (p < 0.05) compared to the first group significantly. it also increased the cat activity...

zagros (drought tolerant) and pishtaz (drought susceptible) cultivars were classified on the basis of shoot dry weight and were used as plant material in this study. total chlorophyll, carotenoids, antocyanins, proline, soluble sugar contents, lipid peroxidation, antioxidant enzyme activities and protein patterns were determined. seedlings of wheat genotypes were grown in nutrient solution cult...