Twenty Citrus cultivars grown in the Mediterranean climate were analysed at different stages of fruit maturity to determinate changes in organic acids, vitamin C and sugars. High-performance liquid chromatographic methods were used to identify and quantify of these compounds. The influences of variety, rootstocks and different stages of fruit maturity were observed. Generally, the vitamin C con...

Banana, as the world’s most consumed fruit, is a good source of carbohydrate, potassium, fiber, and other essential nutrients such pro-vitamin A carotenoids. The carotenoid content composition in bananas commonly sold fruit shops Malang have become interesting studies. Five types banana, i.e. Berlin, Mas, Cavendish, Candi Raja were characterized using high-performance liquid chromatography UV-V...

in this research the effect of conventional and ohmic pasteurization and storage time at different temperatures on some bioactive components of aloe vera gel juice was investigated. aloe vera gel juice was pasteurized conventionally and ohmically at 90 ºc for 1 min. the effect of pasteurization on vitamin c, total phenolic content  and juice color was evaluated. the samples pasteurized conventi...

Banana (Musa sp.) and papaya (Carica papaya) cultivars were harvested from different locations throughout Hawaii and analyzed for vitamin C (ascorbic acid), provitamin A (b-carotene, a-carotene, b-cryptoxanthin), and mineral composition. Dwarf Brazilian (‘‘apple’’) bananas had almost three times more vitamin C (12.7mg/100 g fresh weight) than Williams fruit (4.5mg/100 g). Also, Dwarf Brazilian ...

The present study was conducted during the two successive seasons, 2017 and 2018, at King Saud University, Saudi Arabia, to investigate effects of foliar sprays on Ziziphus jujuba trees by yeast extract 1% 2% potassium nitrate (KNO3) 2%. All treatments were applied twice (December 15–January 15) in both seasons. Yield fruit quality studied. Treatments significantly improved yield, physical chem...

BACKGROUND AND AIMS The mechanisms involving light control of vitamin C content in fruits are not yet fully understood. The present study aimed to evaluate the impact of fruit and leaf shading on ascorbate (AsA) accumulation in tomato fruit and to determine how fruit sugar content (as an AsA precursor) affected AsA content. METHODS Cherry tomato plants were grown in a glasshouse. The control ...

Carotenoids, which impart yellow, orange, and/or red colors to many fruits, have antioxidant health properties. A series of experiments were undertaken to establish horticultural relationships to carotenoids in watermelon and mango in cooperation with U.S. commodity boards. Watermelon was assayed to determine effects of germplasm, storage temperature, and fresh cut on lycopene and beta carotene...

Vitamin C (L-AA, ascorbic acid) has major functions in oxidative stress defense (e.g. ozone, pathogens, wounding, etc.) because of its antioxidant properties, and this leads to improved fruit quality, storage and increased resistance to postharvest storage diseases. It also protects humans from various important diseases. Fruit is the best food source of vitamin C, but while apple is the most h...

strawberry (fragaria ananassa duch.) is a good source of natural antioxidants. fruits from eight strawberry (fragaria ananassa duch.) cultivars (‘kurdistan’, ‘merck’, ‘camarosa’, ‘paros’, ‘queen elisa’, ‘ventana’, ‘selva’ and ‘pajaro’) were harvested at ripen stage and analyzed for total phenolic content, total anthocyanin content, vitamin c, total soluble solid and total antioxidant activity. ...