BACKGROUND Hydrogen, as a novel antioxidant, has been shown to selectively reduce the level of hydroxyl radicals and alleviate acute oxidative stress in many animal experiments. Hydrogen-rich saline provides a high concentration of hydrogen that can be easily and safely applied. Allogeneic hematopoietic stem-cell transplantation (HSCT) has been the most curative therapy for hematological malign...

The Cu-Cl thermochemical cycle for hydrogen production was selected on the basis of its high efficiency and moderate temperature requirements. The modeling and simulation of Cu-Cl thermochemical cycle for hydrogen production is investigated in Aspen Plus. Since this cycle is a high energy-consuming process, the heat integration technique is implemented to recover the waste heat such that the pr...

A gfp- and kanamycin-resistance gene-containing plasmid pUCGK was successfully constructed and transformed into Enterobacter aerogenes to develop a rapid GFP-based method for quantifying the bacterial concentration under anaerobic conditions for production of biohydrogen. Since the use of GFP as a molecular reporter is restricted by its requirement for oxygen in the development of the fluoropho...

In this article, the conceptual design of biomass steam gasification (BSG) processes using raw oil palm (ROP) and torrefied oil palm (TOP) are examined in an Aspen Plus simulator. Through thermodynamic analysis, it is verified that the BSG process with torrefied feedstock can effectively enhance the hydrogen yield. When the heat recovery design is added into the BSG process, the system energeti...

Removal, recovery, and recycles of gold(III) from aqueous tetrachloroauric acid solution using immobilized Pseudomonas saccharophila was investigated. The effect pH, cell amounts on gold removal, the time course removal by P. cells, which removed large a containing hydrogen tetrachloroauric(III) were reported in detail. Additionally, to approve amount recovery much higher, biosorption...

In order to evaluate the toxicity of sodium bisulfite (NaHSO3) used in peritoneal dialysis solutions it was necessary to measure bisulfite in simple solutions and serum. A microdiffusion technic is described for quantification of bisulfite. This involves evolution of SO2 gas from bisulfite by acidification, trapping it as H2S03, oxidation ofthe H2S03to H2S04 by hydrogen peroxide, and titration ...

Introduction The Water Gas Shift Reaction (WGSR), an important industrial reaction for the production of chemicals and/or hydrogen, is expected to play a key role in the integration of gasification technologies with a H2 production/recovery unit. The effluent stream of the gasifier, mainly H2, CO and CO2 at high pressure (up to 30 atm) and temperature (up to 1000C), will be directed to the wate...

A novel spectrophotometric enzymlc procedure for estimating oxalic acid in urine is described. Oxalate oxidase, prepared from moss species, converts oxalic acid to hydrogen peroxide and carbon dioxide. Hydrogen peroxide is determined enzymatically with horseradish peroxidase, by oxidative coupling of 3-methyl-2-benzothiazolinone hydrazone with N,N-dimethylaniline; the resulting indamine dye is ...

Brazil is a significant producer of agricultural and agro-industrial waste, which can be used to recover valuable resources, such as struvite, hydroxyapatite, methane gas, hydrogen carboxylic acids, mitigate the environmental impacts sector, add economic value organic promote sustainability natural resources. Thus, this work's objective was compile analyze data on composition, physical-chemical...