To clarify the bioavailability of vitamin B12 in lyophylized purple laver (nori; Porphyra yezoensis), total vitamin B12 and vitamin B12 analogue contents in the laver were determined, and the effects of feeding the laver to vitamin B12-deficient rats were investigated. The amount of total vitamin B12 in the dried purple laver was estimated to be 54.5 and 58.6 (se 5.3 and 7.5 respectively) micro...

Alkaline phosphatase (ALP) enzyme is naturally present in raw milk which used as a prominent indicator to determine proper pasteurization milk. However, determination of ALP activity either time-consuming or required sophisticated instrument facilities that are uncommon India's rural dairy collection centers. Present test based on the reaction with p-nitrophenyl phosphate release p-nitrophenol ...

Abstract Based on the interaction between ascorbic acid and bromocresol purple, a new simple, straightforward, quick method for quantification of is proposed. The procedure based determined quenching effect natural fluorescence signal purple in reaction phosphate buffer solution (pH 6). reduction intensity detected at 641 nm, while excitation occurs 318 nm. linear relationship reduced concentra...

The diversity of purple phototrophic bacteria in algae-dominated biofilm of a streambed in Tama River, Japan was investigated. Clone library analysis of the pufM gene encoding a subunit of the photochemical reaction center of purple bacteria detected 18 operational taxonomic units (OTUs) in several classes of Proteobacteria. Most of the OTUs showed less than 85% identity to the PufM amino acid ...

Purple urine bag syndrome is a rare phenomenon whose striking presentation can lead to earlier recognition and treatment of potentially serious medical condition. This unique condition long11 term indwelling catheter associated urinary tract infection with distinct, purple-colored caused by bacterial metabolites. infrequent occurrence was seen in patient stage IIIb squamous cervical cancer who ...

Purple acid phosphatases (PAPs) employ a dinuclear Fe(3+)Fe(2+) or Fe(3+)Zn(2+) center to catalyze the hydrolysis of phosphate monoesters. The interaction of fluoride with bovine spleen purple acid phosphatase (BSPAP) has been studied using a combination of steady-state kinetics and spectroscopic methods. For FeZn-BSPAP, the nature of the inhibition changes from noncompetitive at pH 6.5 (K(i(co...

Objective: The main compounds in O. aristatus are rosmarinic acid, sinensetin, and eupatorin. Sinensetin acid have the potential as antiviral agents. focus of this research is purple white-purple varieties. This study aimed to determine levels three secondary metabolites aristatus, one specific standardizations.
 Methods: standardization parameters be tested were compound by using thin-lay...

in order to assess the effect of salinity constraint on some agro-physiological and biochemical traits in medicago sativa l., four alfalfa populations (tafilalet 1, tafilalet 2, demnate and tata), originated from mountains and oasis of morocco, were tested. the plants were grown under greenhouse conditions in pots filled with sand and peat under three salt treatments (0, 100 and 200 mm nacl). t...