The baobab tree: a good source of ascorbic acid.

Quantitative study of ascorbic acid in some of Persian Rose species

Rose hip is one of the natural rich sources and also other important components such as tannins, flavonoids, carotenoids, pectin, Nicotinic acid … Iran is one of the important habitat for Rose and it is used as a food and folk remedy. In this study ascorbic acid in four species of Iranian nature Rose hip were assayed. A hydro alcoholic extract were prepared via maceration method and the assay o...

Quantitative study of ascorbic acid in some of Persian Rose species

Rose hip is one of the natural rich sources and also other important components such as tannins, flavonoids, carotenoids, pectin, Nicotinic acid … Iran is one of the important habitat for Rose and it is used as a food and folk remedy. In this study ascorbic acid in four species of Iranian nature Rose hip were assayed. A hydro alcoholic extract were prepared via maceration method and the assay o...

The role of ascorbic acid against oxidative stress caused by water deficit in olive tree

Nutrient and Total Polyphenol Contents of Dark Green Leafy Vegetables, and Estimation of Their Iron Bioaccessibility Using the In Vitro Digestion/Caco-2 Cell Model

Dark green leafy vegetables (DGLVs) are considered as important sources of iron and vitamin A. However, iron concentration may not indicate bioaccessibility. The objectives of this study were to compare the nutrient content and iron bioaccessibility of five sweet potato cultivars, including three orange-fleshed types, with other commonly consumed DGLVs in Ghana: cocoyam, corchorus, baobab, kena...

A Highly Sensitive Kinetic Spectrophotometric Method for the Determination of Ascorbic Acid in Pharmaceutical Samples

In this study, a new reaction system for quantitative determination of ascorbic acid was introduced. The developed method is based on inhibitory effect of ascorbic acid on the Orange G-bromate system. The change in absorbance was followed spectrophotometrically at 478 nm. The dependence of sensitivity on the reaction variables including reagents concentration, temperature and time was investiga...