Metabisulfite
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. Evaluatin of metabisulfite and a commercial stee wool for removing chromium (VI) from wastewater.
Efficiency of metabisulfite and a commercial steel wool as reducing agents in the removal of Cr(VI) from wastewaters was evaluated. Chromium( VI) was converted to Cr(III), precipitated with NaOH, and removed by filtration. A reduction of more than 1.0 x 10(5) and 4.0 x 10(5) fold in total Cr and the Cr(VI) concentrations, respectively, was observed by employ
Enviromental Chemistry Letter. Publicado em: 2011
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2. Editorial
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/04/2010
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3. COMPORTAMENTO MOLECULAR DA HIDROQUINONA EM PREPARAÇÕES FARMACÊUTICAS
There are many pathological changes of skin color classified into hereditary and acquired hyper-pigmentation. The depigmetant drugs mostly used in the treatment of skin hyperpigmentation are zelaic acid, phytic acid, ascorbic acid, kojic acid, tretinoin and hydroquinone. However, hydroquinone is mainly used in masterful formulations; primarily in the handlin
Publicado em: 2010
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4. The experiences and the resistance of the native population of Cumbe in the conflicting cultural scenario of subsistence fishery and shrimp farming, and of the carcinicultura, Cumbe, Aracati-CE / O trabalho no mangue nas tramas do (des)envolvimento e da des(ilusÃo) com "esse furacÃo chamado carcinicultura": conflito socioambiental no Cumbe-Aracati-CE
Shrimp farming is the main cause of the rapid growth observed in aquiculture around the world. The practice was introduced in Brazil in the 1970s, but it required appropriate farming technology based on the Pacific white shrimp (Litopenaeus vannamei), incentive through public policies and funding by state banks beginning in 1996/1997 to trigger the boom whic
Publicado em: 2008
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5. Desenvolvimento de néctares mistos de frutas tropicais adicionados de Ginkgo biloba e Panax ginseng / Development of tropical fruit mixed nectars with addition of Ginkgo biloba e Panax ginseng
With the appealing of changes to healthy habits, it is observed that the consumption of fresh fruit has increased all over the world, and processed juices are an extension of that. Beverages presenting new flavors and aromas are being elaborated; being the mixed fruit drinks one more option to consumers and a trend to international market. The addition of fu
Publicado em: 2006
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6. Purificação e caracterização bioquimica da polifenoloxidase (PPO)em fruto da anonacea Pinha (Annona squamosa L.)
Polyphenoloxidases (PPO) are widely distributed in nature, being firstly related to the enzymatic browning of vegetables "in natura", causing a loss of color in fruit products and processed or frozen vegetables, decrease in nutritional value and modification of the organoleptic properties, resulting in products with bad appearance, which are rejected by the
Publicado em: 1999
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7. Isolado proteico de girassol obtenção e propriedades / Isolated protein sunflower production and properties
The physical and chemical characteristics of eight varieties of sunflower seeds of commercia1 importance in Brazil were studied.The IAC-Anhandy, a new cultivar devéloped at the Instituto Agronômico in Campinas, SP, presented the highest levels of oil and ] ernel. The protein content of the several varieties of sunflower seeds ranged from 15.38% to 25.28%.
Publicado em: 1984
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8. REDUCTION OF INORGANIC COMPOUNDS WITH MOLECULAR HYDROGEN BY MICROCOCCUS LACTILYTICUS II. : Stoichiometry with Inorganic Sulfur Compounds
Woolfolk, C. A. (University of Washington, Seattle). Reduction of inorganic compounds with molecular hydrogen by Micrococcus lactilyticus. II. Stoichiometry with inorganic sulfur compounds. J. Bacteriol. 84:659–668. 1962.—Extracts of Micrococcus lactilyticus (Veillonella alcalescens) are capable of utilizing molecular hydrogen for the reduction of metabi
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9. Effect of ferrous sulfate, sodium metabisulfite, and sodium pyruvate on survival of Campylobacter jejuni.
A combination of ferrous sulfate, sodium metabisulfite and sodium pyruvate, incorporated in solid medium, maintained the characteristic morphology, motility, and viability of six isolates of Campylobacter jejuni stored at room temperature and 4 degrees C for up to 20 and 30 days, respectively, under normal atmospheric conditions.
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10. Ultrastructural Alterations of Erwinia carotovora subsp. atroseptica Caused by Treatment with Aluminum Chloride and Sodium Metabisulfite
Aluminum and bisulfite salts inhibit the growth of several fungi and bacteria, and their application effectively controls potato soft rot caused by Erwinia carotovora. In an effort to understand their inhibitory action, ultrastructural changes in Erwinia carotovora subsp. atroseptica after exposure (0 to 20 min) to different concentrations (0.05, 0.1, and 0.
American Society for Microbiology.
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11. Improved media for growth and aerotolerance of Campylobacter fetus.
The microaerophilic nature of Campylobacter fetus has complicated its recovery from human and animal sources. In this study, modifications of brucella agar and broth were tested for enhancement of growth and aerotolerance of 64 strains of C. fetus, representing each subspecies. Brucella agar supplemented with 0.025% each FeSO4 7H2O, sodium metabisulfite, and
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12. Nutritional studies with Pseudomonas aeruginosa grown on inorganic sulfur sources.
Pseudomonas aeruginosa was grown on a succinate-basal salts medium supplemented with various inorganic sulfur compounds as its sole source of sulfur. The organism was able to grow on the sodium salts of sulfide, thiosulfate, tetrathionate, dithionite, metabisulfite, sulfite, or sulfate, but not on those of dithionate. Analyses of the culture media after 24 h