It was reported in the previous paper that thiamine and O-benzoylthiamine (OBT) reacted with iodine-oxidized egg albumin resulting in formation of protein thiamine mixed disulfide (1). The formation of protein-bound thiamine is de pendent on the pH of the reaction mixture and the amount of bound thiamine was much greater at pH 9.0 than at pH 7.3 possibly due to the difference of the amount of t...

Crude preparations of bovine testicular hyaluronidase (1) depolymerize both hyaluronic acid (HA) and chondroitinsulfuric acid (CSA). Since a series of enzyme preparations with a wide range (loo-fold) of purity shows a constant ratio of activities toward both substrates when examined by a turbidimetric method of assay, the conclusion was drawn that both activities were most likely assignable to ...

The effect of initial pH on aflatoxin production by Aspergillus parasiticus NRRL 2999 was examined in a semisynthetic medium. Maximal growth, aflatoxin production, and aflatoxin production per unit of growth occurred at initial pH levels of 5.0, 6.0, and 7.0 respectively. Initial pH levels less than pH 6.0 favored production of the B toxins, whereas levels greater than pH 6.0 favored production...

To analyze the effect of two mouthwashes on salivary pH and correlate it with age, buffer capacity and saliva flow rate in healthy volunteers, a crossover phase IV clinical study involving three age-based groups was designed. Two commercial mouthwashes (MW), Cool Mint ListerineR (MWa) and Periobacter R (MWb) were used. The unstimulated saliva of each individual was first characterized by measur...

A method for correction of threshold voltage drift in pH-sensitive ion-selective field effect transistors (ISFET’s) is presented. The proposed method allows accurate continuous monitoring of pH under clinical conditions corresponding to rapid pH changes such as those encountered in acute metabolic acidosis and cardiopulmonary bypass operations. This method, which involves monitoring the differe...

Therefore fruits and vegetables are very useful for the maintenance of health as a preventive treatment of various diseases (D’ mello, 2003). The presence of heavy metals may have a negative influence on the quality of vegetables and fruits causing changes to their taste and smell. The term heavy metals to any metallic elements that has a relative density greater than 4gcm -3 . In the group of ...

AIMS To investigate the appropriateness of the extended Lambert-Pearson model (ELPM) to model the effect of pH (as hydrogen and hydroxyl ions) over the whole biokinetic pH range in comparison with other available models. METHODS AND RESULTS Data for the effect of pH on microbial growth were obtained from the literature or in-house. Data were examined using several models for pH. Models were c...

Tofu is a common food in Vietnamese and global cuisine. It has high nutritional value, good flavor texture that it easy to produce other from it. In Hanoi, Mo tofu traditional product produced tofu- whey, which commonly by small scale producers. this research, effect of coagulating pH on the formation some linkages qualities. The results showed effected S-S linkage Ho index or phobicity tofu. A...