Extremely simple procedures for the preparation of magnetic chitosan enzyme carriers have been developed and used for the immobilization of lipase and β-galactosidase as model enzymes. In the first case commercially available magnetite microparticles were entrapped in chitosan gel, while in the second case magnetic iron oxides microparticles were synthesized in chitosan matrix from ferrous sulf...

The paper presents the investigations on absorbability of ferri/ferrous impurities found in commercial grade sodium sulphide. The later product is unsuitable for the manufacture of pharmaceutical grade chemicals and dyes chemicals.The author have carried out experiments on the use of precipated barium sulphate as an adsorbent in different propotions in the aqueous solution of commercial grade s...

Jarosite, a potassium (sodium) iron sulphate hydrated mineral, has recently been identified on the martian surface by the Opportunity rover. Using recent thermochemical data [Drouet and Navrotsky, 2003, Geochim. Cosmochim. Acta 67, 2063–2076; Forray et al., 2005, Geochim. Cosmochim. Acta, in press], we calculate the equilibrium decomposition curve of jarosite and show that it is thermodynamical...

BACKGROUND Iron, zinc, and calcium can interact with each other in a way that inhibits their respective absorption. On the other hand, mineral fortification has been used to improve simultaneous iron and zinc absorption from food supplements. OBJECTIVE We evaluated the effect of a novel fortificant mixture consisting of NaFeEDTA, zinc methionine, ascorbic acid, and citric acid on iron and zin...

A blood-free selective agar is described which contains charcoal, ferrous sulfate, sodium pyruvate, casein hydrolysates, cefazolin, and sodium deoxycholate (CCD agar). CCD agar was compared with Preston medium for isolation of Campylobacter jejuni from human feces, and isolation rates were similar on both media, but CCD agar was less selective. Temperature studies at 37 and 42 degrees C confirm...

In this study, we explore the dyeing properties of extract sappan wood natural dye for coloration wool yarn to find potential use dyed in development eco-friendly textiles. Different characterizations were used know chemistry and its interaction with metal salts wool. Interestingly, found that salts, which are called as mordants reference unmordanted sample, play an important role fixing molecu...

Although iron is an essential mineral in the homeostasis and functioning of multiple organ systems, its use as a therapeutic entity should be reserved for people with bona fide irondeficiency anemia. Especially when it is added onto preexisting polypharmacy in older adults, iron can subject patients to a plethora of dose-related side effects and drug interactions. Judicious use of laboratory st...

Iron deficiency anemia (IDA) is a health problem in Indonesia. Prevention and treatment of IDA carried out by giving fortified foods oral iron therapy. Both can use ferrous fumarate which made with reacting bivalent disodium fumarate. Bivalent be obtained from sand This study aims to synthesize Indonesian sand, Malang, Sukabumi, Cianjur area, determine its absorption through vivo body weight ga...

The objective of this study was to assess the prevalence of anemia and the therapeutic and prophylactic response to ferrous sulfate and folic acid. A double-blind, randomized, controlled clinical trial was conducted with 196 children 6 to 24 months of age enrolled in municipal daycare centers in Goiânia, Goiás State, Brazil. The children were assigned to two treatment groups that received a dai...