The experimental results show that in alkaline medium, ferrous cysteine solution absorbs NO to form nitrosyl ferrous chelates, and the cysteine (CySH) is oxidized into cystine (CySSCy), and the absorped of NO is reduced to yield N 2. CySSCy can be converted back to CySH by SO 2 in flue gas, thus making possible the recycling of the reactions of removal of SO 2 and NO X with cysteine solution.
The use of ferrous cysteine solution for simultaneous removal of SO_2 and NO_x from flue gas wasresearched in this paper. The effect of[SO_3 ̄(2-)] on NO_x removal efficiency,and regeneration of cysteine alsowere examined in the experiments.
The two species of crystal of ferrous cysteine have been prepared successfully for the first time. The elemental analysis results indicated that the two complexes have the same compositions as confirmed by solution analysis.
Orid, Ade and Scul 160 μmol·L -1 inhibited the increase of P value (0 297±0 022, 0 389±0 009 and 0 382±0 013 vs 0 423±0 014 in ferrous cysteine group) Ade 160 μmol·L -1 prevented the decrease of the absorbane induced by ferrous ascorbic acid in liver mitochondria.
METHODS The effects of CGS on the lipid peroxidation〔malondialdehyde(MDA) formation〕 in microsomes of rat brain, liver and kidney induced by NADPH vitamin C and ferrous cysteine systems in vitro, the superoxide anion radical production(reduced cytochrome C formation) in xanthine xanthine oxidase system in vitro, and CCl 4 and ethanol induced MDA formation in mouse liver in vivo were evaluated.
It was found that salvianolic acid A (Sai A) showed potent antioxidant activities. Protective effects of Sai A on rat heart and liver mitochondria injury induced by oxygen radicals were investigated in the present study. The mitochondrial lipid peroxidation induced by ferrous-cysteine system was significantly inhibited by Sai A, while the inactivation of ATPase due to the lipid peroxidation was prevented. The swelling of liver and heart mitochondria and the membrane rigidification of liver mitoc...
Clausenamide (Clau) is an alkaloid. The present investigation demonstrated that Clau inhibited ferrous-cysteine induced lipid peroxidation (malondialdehyde formation) of microsomes from the rat brain, heart, liver and testes. Electron spin resonance (ESR) detected that Clau scavenges oxygen radicals produced by human polymorphonuclear leukocytes (PML) stimulated by phorbol myristate acetate (PMA). However, no inhibitory effect of Clau on oxygen consumption of PML during respiratory burst was mea...
The use of ferrous cysteine solution for simultaneous removal of SO_2 and NO_x from flue gas wasresearched in this paper. The effect of[SO_3 ̄(2-)] on NO_x removal efficiency,and regeneration of cysteine alsowere examined in the experiments. The experiments showed that SO_2 in flue gas could be completely re-moved;with the increase of [SO_2 ̄(2-)], the solution of ferrous cysteine could raise its absorption of NO, butwith some extent ;the oxidation product cystin could be reduced...