نتایج جستجو برای: iron mineral

تعداد نتایج: 205085  

2017
Riko Iizuka-Oku Takehiko Yagi Hirotada Gotou Takuo Okuchi Takanori Hattori Asami Sano-Furukawa

Density of the Earth's core is lower than that of pure iron and the light element(s) in the core is a long-standing problem. Hydrogen is the most abundant element in the solar system and thus one of the important candidates. However, the dissolution process of hydrogen into iron remained unclear. Here we carry out high-pressure and high-temperature in situ neutron diffraction experiments and cl...

Journal: :Applied and environmental microbiology 1994
A Ehrenreich F Widdel

Anoxic iron-rich sediment samples that had been stored in the light showed development of brown, rusty patches. Subcultures in defined mineral media with ferrous iron (10 mmol/liter, mostly precipitated as FeCO3) yielded enrichments of anoxygenic phototrophic bacteria which used ferrous iron as the sole electron donor for photosynthesis. Two different types of purple bacteria, represented by st...

2012
Azrina Azlan Hock Eng Khoo Mohd Aizat Idris Amin Ismail Muhammad Rizal Razman

The drinking and mineral water samples obtained from different geographical locations had concentrations of the selected minerals lower than the standard limits, except for manganese, arsenic, and fluoride. The concentrations of manganese and arsenic in two mineral water samples were slightly higher than the standard international recommended limits. One mineral water sample had a fluoride conc...

Journal: :Anais da Academia Brasileira de Ciencias 2015
Maria C Thomaz Pedro H Watanabe Leonardo A F Pascoal Murilo M Assis Urbano S Ruiz Alessandro B Amorim Susana Z Silva Vivian V Almeida Gabriel M P Melo Rizal A Robles-Huaynate

A study was conducted to evaluate the effects of dietary inorganic and organic trace minerals in two levels of supplementation regarding performance, diarrhea occurrence, hematological parameters, fecal mineral excretion and mineral retention in metacarpals and liver of weanling pigs. Seventy piglets weaned at 21 days of age with an average initial body weight of 6.70 ± 0.38 kg were allotted in...

Journal: :Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements 2008
Ming-Sheng Fan Fang-Jie Zhao Susan J Fairweather-Tait Paul R Poulton Sarah J Dunham Steve P McGrath

Wheat is an important source of minerals such as iron, zinc, copper and magnesium in the UK diet. The dietary intake of these nutrients has fallen in recent years because of a combination of reduced energy requirements associated with sedentary lifestyles and changes in dietary patterns associated with lower micronutrient density in the diet. Recent publications using data from food composition...

2009
A. Sansano P. Sobron B. Lafuente J. Medina F. Rull

Introduction: Rio Tinto area is considered a referent as an extremophilic scenery of iron rich and acidic water conditions for life [1]. Physic-chemical equilibriums taking place along of its watercourse during a year produce a repertory of mineral species related with the main chemical species in solution (sulphates and iron). Raman spectroscopy is a powerful technique that allows studying the...

Journal: :African health sciences 2015
Emmanuel I Ugwuja Richard C Nnabu Paul O Ezeonu Henry Uro-Chukwu

BACKGROUND Adverse pregnancy outcome is an important public health problem that has been partly associated with increasing maternal parity. AIM To determine the effect of parity on maternal body mass index (BMI), mineral element status and newborn anthropometrics. METHODS Data for 349 pregnant women previously studied for the impacts of maternal plasma mineral element status on pregnancy an...

2011
C. Frontela G. Ros C. Martínez

Whole-grain bakery products and cereals are valuable sources of dietary fiber, vitamins, and trace elements. However, the presence of phytate, could decreases mineral bioavailability due to its chelating properties. In this study, the effect of fermentation and baking on the phytate content of different bakery products was measured by HPLC; the mineral availability in bakery products during pro...

2014
Jae-Hwan Cho Min-Tae Kim Hae-Kag Lee In-Sik Hong Hyon-Chol Jang

[Purpose] The aim of this study was to find biochemical markers related to low bone mineral density in Korean adults. [Subjects and Methods] From August 1 to September 15, 2013, subjects receiving medical checkups were classified as lumbar spine bone normal, osteopenic, or osteoporotic using a bone mineral densitometer. Next, age, body mass index, and biochemical parameter differences were comp...

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