The present study investigates the hydrolysis, microstructural profiling and utilization of guar gum (Cyamopsis tetragonoloba) as a prebiotic in yoghurt. Guar galactomannans (GG) was purified partially depolymerized using an acid, alkali enzyme to improve its characteristics increase utilization. potential hydrolyzed determined Basel supplemented media. Crude (CGG), (PGG), base (BHGG), acid (AH...

In this study, glucan-rich solids, and xylose-rich hydrolysates obtained from Cistus ladanifer distillery residues (CLR) were used for d-lactic acid (d-LA) production by the d-lactogenic Escherichia coli strain JU15. Firstly, hemicellulosic autohydrolysis process submitted to dilute sulfuric acid-catalysed post-hydrolysis. The influence of operational conditions on oligosaccharides hydrolysis w...

This study was designed to evaluate selected chemical and microbiological treatments for the conversion of certain local agro-industrial wastes (rice straw, corn stalks, sawdust, sugar beet waste and sugarcane bagasse) to ethanol. The chemical composition of these feedstocks was determined. Conversion of wastes to free sugars by acid hydrolysis varied from one treatment to another. In single-st...

The configurations of the amino acids in pneumococcal C-polysaccharide have been determined chromatographically after acid hydrolysis. The amino acids were coupled with an L-amino acid N-carboxyanhydride for formation of the corresponding L-Dand L-L-dipeptides; these derivatives were separated by ion exchange chromatography on an amino acid analyzer. The amount of racemization of alanine which ...

The effects of temperature (25-40°C), H,SO, concentration (31-70% (w/v)) and the acid/substrate relationship (1-5 cm3 of H,SO, per g-' of cellulose) on the solubilization rate of microcrystalline cellulose and on the glucose production rate have been analysed. The solubilization process was by determining reducing groups present in solution. For acid/substrate relationships of more than 1 cm3 g...

A maize (Zea mays L. subsp. mays) diversity panel consisting of 26 maize lines exhibiting a wide range of cell-wall properties and responses to hydrolysis by cellulolytic enzymes was employed to investigate the relationship between cell-wall properties, cell-wall responses to mild NaOH pre-treatment, and enzymatic hydrolysis yields. Enzymatic hydrolysis of the cellulose in the untreated maize w...

The kinetics of cellulose hydrolysis under extremely low acid (ELA) conditions (0.07 wt%) and at temperatures >200°C was investigated using batch reactors and bed-shrinking flow-through (BSFT) reactors. The maximum yield of glucose obtained from batch reactor experiments was about 60% for α-cellulose, which occurred at 205 and 220°C. The maximum glucose yields from yellow poplar feedstocks were...

Aebi, H. (1953). Helv. physiol. acta, 11, 96. Boyd, G. E., Schubert, J. & Adamson, A. W. (1947). J. Amer. chem. Soc. 69, 2818. Conway, E. J. & Hingerty, D. (1946). Biochem. J. 40, 561. Conway, E. J. & McCormack, J. I. (1953). J. Physiol. 120, 1. Davies, F., Davies, R. E., Francis, E. T. B. & Whittam, R. (1952). J. Physiol. 118, 276. Deutsch, W. (1936). J. Physiol. 87, 56P. Domingo, W. R. & Klyn...

In this study, the effects of limited hydrolysis and/or high-pressure homogenization (HPH) treatment in acid conditions on the functional properties of oyster protein isolates (OPI) were studied. Protein solubility, surface hydrophobicity, particle size distribution, zeta potential, foaming, and emulsifying properties were evaluated. The results showed that acid treatment led to the dissociatio...