OBJECTIVE To determine the dental hazards associated with sports supplement drinks by investigating the chemicophysical properties of eight brands of sports drinks. METHODS The pH and titratable acidity against 0.1 M NaOH was measured. Calcium, phosphate, and fluoride concentrations and viscosities of Carbolode, Gatorade, High Five, Isostar, Lucozade Sport Lemon, Lucozade Sport Orange, Maxim,...

OBJECTIVES To evaluate in vitro the endogenous pH, titratable acidity and total soluble solid content (TSSC) of mouthwashes available in the Brazilian market. METHODS The study sample was composed of 10 commercial brands of mouthwashes based on different active ingredients: Cepacol(R), Clinerize(R), Equate(R), Listerine Cool Citrus(R), Oral-B(R), Periogard(R), Peroxyl(R), Plax Overnight(R), P...

PURPOSE This study was performed to evaluate the oral health of children with PKU and to assess, in vitro, the erosive potential of 5 amino acid supplements commonly prescribed in the management of these children. METHODS Forty children with phenylketonuria underwent a full dental examination and were compared with an age and sex matched control group. The erosive potential of the supplements...

In present study, spray-dried sourdough was produced using a pilot scale spray dryer and the physico-chemical and microbial characteristics of the obtained sourdough powder were investigated. The application of the spray-dried sourdough at different levels (3%, 6%, 9% and 15%) in breadmaking was also evaluated. Bulk density, wettability and suspensibility of the sourdough powder were 0.6 g/cm(3...

Apple is one of the delicious fruit consumed by people. cider vinegar was made through traditional method and changes occurred during 8 week fermentation period were determined in this research. Total titratable acidity, pH, total soluble solids (°brix), phenolic contents, Oxygen Radical Absorbance Capacity (ORAC) Trolox Equivalent Antioxidant (TEAC) assays, contents determined. substance, ORAC...

ABSTRACT The semi-arid region of northeastern Brazil is characterized by irregular precipitation and high evapotranspiration, with a common occurrence water sources concentration salts. In this context, study aimed to evaluate the post-harvest fruit quality grafted guava cv. Paluma under brackish irrigation foliar application salicylic acid. experiment was conducted greenhouse conditions in Cam...

Photosynthetic characteristics and induction of crassulacean acid metabolism (CAM) by drought stress were investigated in Sedum album, Sedum stoloniferum and Rosularia elymaitica from Crassulaceae. Titratable acidity, malate content, phosphoenolpyruvate carboxylase (PEPC) activity and gas exchange parameters were determined in plants at the end and beginning of the photoperiod. Results showed t...

Rice-acid, a Chinese traditional acidic rice soup (rice-acid), is widely accepted by consumers due to its unique flavor and anti-oxidation, anti-aging immunity enhancement functions. This study confirmed that L-lactic acid malic were the main organic acids in rice-acid. Low-temperature rice-acid samples produced enterprises had highest signal intensity of sour taste. The total content free amin...

It is well recognized that the pK' value for the salt of a weak acid or base is significantly influenced by the ionic strength of the solution. In the case of phosphate, the theoretical value for pK2 in an infinitely dilute solution is 7.181 at 370 C. (1) and in a solution of ionic strength comparable to that of plasma is approximately 6.8. The small variations in ionic strength ordinarily enco...

Alteration of red blood cell (RBC) pH produces stomatocytosis (at low pH) and echinocytosis (at high pH). Cell shrinkage potentiates high pH echinocytosis, but shrinkage alone does not cause echinocytosis. Mechanisms for these shape changes have not been described. In this study, measured dependence of RBC shape on cell pH was nonlinear, with a broad pH range in which normal discoid shape was m...