objective: in this study the susceptibility of candida albicans to inhibitory effect of polyphenols under varying time (24 and 48 hours) conditions were evaluated. materials and methods: green tea leaf polyphenols were extracted and analyzed by chromatography. among polyphenols, catechin showed stronger antifungal activity against c. albicans ptcc-5027. catechin's mic90 (the concentration of c...

abstract salinity tolerance is one of the major factor influencing crop productivity in arid and semi-arid areas. the salinity tolerance of fruit trees can be enhanced through the use of tolerant rootstocks. this experiment was conducted to investigate the effects of salinity stress and rootstock on the growth, photosynthetic rate and nutrient concentrations of almond (prunus dulcis miller.) cv...

Trace metal contamination is a global health issue. This study evaluated boxed and loose-leaf tea from Bangladesh using Handheld X-ray Fluorescence (XRF) analyzer for lead other metals to rapidly screen as potential hot spot of heavy exposure. Of the 33 elements measured, several priority pollutants were below limit detection (LOD) in all samples, including (LOD 2.17 mg/kg) arsenic 1.68 mg/kg)....

Aegiceras corniculatum (L.) Blanco, a mangrove shrub species in the Myrsine family, often grows at the seaward edge of the mangrove zone in China. In the present study, seasonal dynamics of nutrient resorption and phenolics concentration associated with leaf senescence of A. corniculatum were investigated in order to evaluate its possible nutrient conservation strategies in the subtropical Zhan...

Tea brewed from leaves of Camellia sinensis (L.) is one the most popular worldwide non-alcoholic beverages, and nitrogen an essential nutrient that affects growth development tea plant. Inorganic organic are major forms absorbed by plant also play important role as a vital signaling molecule, which use efficiency (NUE) C. in its period. In addition, improving NUE therefore for economic environm...

An experiment was carried out to evaluate the effect of various concentrations of Mg (0, 1, 2, 3 and 4 mM) in the nutrient solution and shading (0 and 50%) on growth, yield, fruit quality and physiological properties in hydroponically grown cucumber (Cucumis sativus L. cv. Nagen 792). With increased Mg concentration in both shaded and unshaded plants, the total plant leaf area and dry weight of...

Tea extracts are used in many over-the-counter preparations claiming to promote weight loss. The rationale for this usage includes reports that green tea extract increases thermogenesis, and extracts of green and black tea and mulberry leaf inhibit the digestion/absorption of carbohydrate and fat. The investigators in this study tested the potential of increasing doses of a mixture of three ext...

In May 2007, a widespread frost event defoliated much of Utah's high elevation aspen. About 5 weeks later, the frost-defoliated aspen produced a second leaf flush. The objective of this study was to characterize changes in leaf morphology and function in re-flush leaves following frost defoliation. Leaf size and thickness, photosynthesis, carbohydrate and nutrient status, and defense chemistry ...

Differences in nutrient-use efficiency have been attributed to differences in leaf habit. It has been suggested that evergreens, with their longer-lived leaves, and therefore longer nutrient retention, are more efficient than deciduous species in their use of nutrients. In tropical trees, however, leaf life span is not always a function of whole-tree deciduousness, leading to the proposal that ...

When we drink green tea infusion, we believe we are drinking the extract of the green tea leaves. While practically each tea bag infused in 300 mL water contains about 50 mg of suspended green tea leaf particles. What is the role of these particles in the green tea effect is the objective of this study. These particles (three different size ranges) were isolated via varying speed centrifugation...