It has been pointed out (1) that, in terms of modern acid-base chemistry, the defects reponsible for the acidosis of renal disease could be: 1) impaired renal excretion of acid in the form of ammonium and titratable acidity, 2) loss of bicarbonate (alkali) in the urine due to a failure of renal bicarbonate conservation or 3) a combination of these two defects. The two main components of urine r...

We report a fluorometric technique for determination of albumin-titratable bilirubin in the jaundiced neonate. Although bilirubin alone has very little native fluorescence, considerable emission is observed in the presence of albumin under acid conditions. Analysis of the plasma sample alone and in the presence of excess human serum albumin solution appears to reflect the bilirubin tightly boun...

Red pitaya is a tropical fruit rich in phytonutrients essential for human health. The savored either through its processed products or raw consumption. This study aimed to assess the physicochemical properties of red juice extracted from ultrasonic-pretreated flesh. flesh was cut into cubes and subjected different durations (20, 40, 60 min) ultrasonic treatment. total soluble solids, pH, titrat...

We evaluated in vitro the cariogenic and erosive potential of antitussive liquid oral medications for paediatric use. Fifteen paediatric liquid antitussives were sampled. The endogenous pH was evaluated by potentiometry, titratable acidity was measured according to the method adopted by the Association of Official Analytical Chemists, total soluble solids content (TSSC) readings were performed ...

Effect of traditional fermentation on pH, titratable acidity, proteins, amino acids, and sugars contents three local sorghum cultivars namely Hamra, Biadah Shahla used in making khamir bread were investigated. During 24 fermentations, the pH fermented dough dropped sharply this was coincided with increase total acidity. Fermentation found to cause no significant change protein content cultivars...

The lipophilic composition of wild Arbutus unedo L. berries, collected from six locations in Penacova (center of Portugal), as well as some general chemical parameters, namely total soluble solids, pH, titratable acidity, total phenolic content and antioxidant activity was studied in detail to better understand its potential as a source of bioactive compounds. The chemical composition of the li...

The relationship between berry chemical composition, region of origin and quality grade was investigated for Chardonnay grapes sourced from vineyards located in seven South Australian Geographical Indications (GI). Measurements of basic chemical parameters, amino acids, elements, and free and bound volatiles were conducted for grapes collected during 2015 and 2016. Multiple factor analysis (MFA...

Sodium cyanide samples which gave different colour yields with a given amount of uric acid were assayed for total cyanide and titratable alkalinity, but little consistent agreement was obtained. One commercial grade giving a low colour yield had a low assay and revealed traces of iron on analysis, the latter in the ferric form considerably reduces the colour yield of uric acid. Changes in alkal...

Crassulacean acid metabolism (CAM) is a CO2 acquisition, CO2 transient storage and CO2 concentrating mechanism based on organic acid synthesis. CO2 acquisition occurs in the dark. CO2 is fixed and stored in the form of organic acids. Remobilization of CO2 from the organic acids occurs in the light and leads to massive CO2 concentration inside photosynthesizing plant organs (green leaves or stem...

Ten most popular brands of commercial Turkish set-type yoghurts were collected from local retail outlets in Hatay, Turkey for two separate periods, and analyzed for basic nutrients, physico-chemical properties, volatile aroma compounds and free fatty acid profiles to compare their differences among the yoghurt products. The results showed that there were significant differences (P < 0.05, 0.01,...