The present study is dedicated to the development of an original method for measurement individual amounts QASi acid sites ASi (acidity Lewis and Brønsted) on three TiO2 based solids increasing composition complexity: TiO2-P25, 6% WO3/TiO2-P25 a sulfated 0.7 % V2O5/9% WO3/TiO2 NH3-SCR catalyst. quantitative characterizations NH3 adsorption equilibrium (adsorption temperature Ta pressure Pa) by ...

ABSTRACT: Mastitis is an inflammatory reaction of the mammary tissue in response to the introduction and multiplication of pathogens and is characterized by increasing somatic cell count (SCC) in milk. The main objective of present study is to assess the probable associations between somatic cell (SC) levels and calcium and phosphorus and ratio of Ca/P in raw milk. Milk samples were collected f...

Investigations have demonstrated that ratio of sugars to organic acids affects the particular taste of citrus fruit and carotenoids are essential for prevent of the disease.  It seems that some rootstocks enhance the ripening of fruits and stimulatethe biosynthesis of sugars and carotenoids. The aim of this study was to evaluate the effect of rootstocks on sugars, organic acids andcarotenoids o...

relative resistance of 43 iranian as well as introduced apple cultivars to blue mold (penicillium expansum) was studied within years 2010-2011. the fruit physicochemical traits were also evaluated as measures of potential resistance to decay. local p. expansum strains were isolated from decayed apple fruits and the most aggressive isolate (5,000 spores ml-1) used as inoculum. fruits were wound-...

in order to alleviate chilling injury in pomegranate (punica granatum) cv. rabab due to cold storage, the fruits were dipped in 0.7, 1.4 and 2 mm of salicylic acid (sa) for 10 min. after 1, 2 and 3 months of storage at 2°c, the fruits were tested for chilling injury (ci) as well as some biochemical parameters. the results revealed that with increase in storage time, ci and ion leakage (il) incr...

effects of pre-storage application of salicylic acid (sa) and storage periods were investigated on phenylalanine ammonia lyase (pal) activity, chilling index (ci) and quality of pomegranate (punica granatum) cv. malase saveh. the results showed that with increase in sa concentration up to 2mm, ci and ion leakage (il) were reduced while pal activity being increased. the lower il and ci vc the hi...

five levels of salicylic acid (sa), (0, 2, 4, 6 & 8 mm) were sprayed on strawberry cv. comarosa fruit bearing plants in a hydroponic culture. growth, yield & fruit quality attributes were assessed. vegetative characteristics (crown number, root & shoot weight), reproductive traits (yield, fruit number as well as shape), fruit quality, macro elements (ca, mg, k & p), dry weight & ash were evalua...

Blackberries are very perishable with a limited shelf life due to high metabolic activity and susceptibility mechanical damage microbial attack. The effect of edible coatings (EC) based on candelilla wax (CW) guar gum (GG) the quality, life, bioactive-compounds content antioxidant blackberries stored at 25 ± 2 °C for 6 days, was evaluated. All EC contained GG (0.4%) gallic acid (GA)(0.06%); EC1...

Apple cultivars exhibit significant diversity in fruit quality traits, creating distinct consumption scenarios. This study aimed to assess the physicochemical parameters and sensory attributes differences among fifteen apple identify characteristic qualities suitable for various processed products using chemometric analysis. Relatively large were registered between deflection, peel color, titra...

OBJECTIVE To assess the erosive potential of various soft drinks by measuring initial pH and titratable acidity (TA) and to evaluate enamel surface roughness using different exposure times. MATERIALS AND METHODS The initial pH of the soft drinks (group 1: Coca-Cola; group 2: orange juice; group 3: Cedevita; group 4: Guarana, and group 5: strawberry yoghurt) was measured using a pH meter, and ...