Plasma amine oxidase (plasma AO, EC 1.4.3.6) is a copper-containing AO which converts benzylamine (BZ) to benzaldehyde, generating hydrogen peroxide and ammonia. The peroxidase was used as an ancillary enzyme to couple hydrogen peroxide to 3-amino-9-ethylcarbazole (AEC) to achieve plasma AO activity after electrophoresis on native polyacrylamide gels. It was confirmed that plasma AO is inhibite...

Hydrogen is often regarded as an ideal energy carrier. Its use in conversion devices does fact not produce any pollutants. However, due to challenges related its transportation and storage, liquid hydrogen carriers are being investigated. Among the carriers, ammonia considered very promising because it easy store transport, has only nitrogen a byproduct. This work focuses on review of latest re...

Carambola is a fruit grown in tropical and subtropical regions of the world. Natural antioxidants including vitamin C, carotenoids, certain phenolic substances are abundant carambola fruit. As support health by acting as nutraceutical functional food additives, they help preserve preventing oxidation processes. The various organic or inorganic substrates hydrogen peroxide peroxides terminal oxi...

This paper reviews various separation techniques used in purification processes to remove pollutants like carbon dioxide and hydrogen sulfide from petroleum products. The most effective include absorption, adsorption, cryogenic distillation, chemical looping combustion, membrane separation. study over 100 published studies assess their characteristics, benefits, drawbacks. choice of technology ...

The ability of electrons and atomic hydrogen (AH) to remove residual chlorine from PtCl2 deposits created from cis-Pt(CO)2Cl2 by focused electron beam induced deposition (FEBID) is evaluated. Auger electron spectroscopy (AES) and energy-dispersive X-ray spectroscopy (EDS) measurements as well as thermodynamics calculations support the idea that electrons can remove chlorine from PtCl2 structure...

Palygorskite (Pal) is a natural clay mineral with fibrous morphology and high surface area. Depending on the geological origin, it presents impurities, such as quartz carbonates, which can harm some of its properties. Therefore, this work seeks to define viable methodology for purification Brazilian Pal. Two types mixing processes (sonication milling) two dispersing agents (sodium silicate sodi...

Hydrogen energy systems are recognized as a promising solution for the energy shortage and environmental pollution crises. To meet the increasing demand for hydrogen, various possible systems have been investigated for the production of hydrogen by efficient and economical processes. Because of its advantages of being renewable and environmentally friendly, biomass processing has the potential ...

Peck and Gest (1) reported that crude extracts of Clostridium butylicum produce small amounts of hydrogen from aqueous dithionite (hydrosulfite). Hydrogen evolution from dithionite decreased upon dilution of the crude extracts and was lost upon further purification (2). This loss of activity was interpreted on the basis of a cofactor requirement or loss of an essential enzyme. Evolution of hydr...