Whey protein is generally found to be faster digested and to promote faster and higher increases in plasma amino acid concentrations during the immediate ~60 min following protein ingestion compared to casein. The aim of the present study was to compare three different whey protein hydrolysates with varying degrees of hydrolysis (DH, % cleaved peptide bonds) to evaluate if the degree of whey pr...

The objective of this study was to evaluate the physical and chemical properties of the broiler feather concentrate (BFC) in different hydrolysis processes. The raw materials in the form of broiler feather waste (BFW) were hydrolyzed into broiler feather concentrate (BFC) products in the form of feather meal. A total of 1000 g of dry feather samples were used in this study. The study was design...

Fuel ethanol can be produced from bamboo by concentrated sulfuric acid hydrolysis followed by continuous ethanol fermentation. To reduce the environmental impact of this process, treatment of the stillage, reuse of the sulfuric acid and reduction of the process water used were studied. The total organic carbon (TOC) concentration of stillage decreased from 29,688 to 269 mg/l by thermophilic met...

In the case of actinomycin X2, such reduction leads to formation of actinomycin Cx (IV, L-proline) or actinomycin X0£ (I, threohydroxy-L-proline) and Xod (allohydroxy-Lproline). Previous reports have suggested that oxoproline was destroyed by vigorous hydrolysis of actinomycin X2 with hydrochloric acid and that recovery of the imino acid was achieved in low yield after hydrolysis with hydroiodi...

A gas-liquid chromatography technique which allows simultaneous detection of hippuric acid (N-benzoylglycine) hydrolysis and conversion of fumaric acid to succinic acid by microorganisms uses a new medium, hippurate-formate-fumarate broth, and a gas chromatograph equipped with a thermal conductivity detector. This technique gave more reproducible results than other tests used in the study for d...

An enzyme that catalyzes the hydrolysis of folic acid and the antifolate methotrexate nearly 20 times more rapidly than the hydrolysis of 5-methyltetrahydrofolate was extraced from a gram-negative bacterium tentatively identified as a Flavobacterium sp. The enzyme was purified 500-fold and found to have a molecular weight of about 53,000. Apparently a metallo-enzyme, it is inhibited by citrate ...

Phytic acid (myo-inositol hexakisphosphate, InsP(6)) hydrolysis by Bacillus phytase (PhyC) was studied. The enzyme hydrolyses only three phosphates from phytic acid. Moreover, the enzyme seems to prefer the hydrolysis of every second phosphate over that of adjacent ones. Furthermore, it is very likely that the enzyme has two alternative pathways for the hydrolysis of phytic acid, resulting in t...

In the first part of this paper, procedures using β-glucuronidase for the analysis of drug conjugates in urine are reviewed and compared to the more classical techniques of acid hydrolysis. Morphine-3-β-D-glucuronide is one of the most commonly encountered drug conjugates that may be either acid hydrolyzed or enzyme hydrolyzed to yield free morphine. Because of its rapidity of method and high y...

The ability of silicon to dissolve in physiological environments allows its use as the basis of a highperformance inorganic integrated circuit technology for active, bioresorbable implant devices. N. R. Aluru, J. A. Rogers, and co-workers perform systematic experimental and theoretical studies of hydrolysis of silicon nanomembranes at near neutral pH, as described on page 1857. This image shows...

The hydrolysis of hemicellulosic oligosaccharides (OS) was investigated using acid-activated clays (prepared from natural Porto Santo montmorillonite clay) as catalysts. Acid activation was performed in HCl solution or with aluminium exchange. The clay catalysts were characterized by XRD, N2 adsorption isotherms, CEC, FTIR, titration of acid sites in water and adsorption of sugars and disacchar...