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Results 201 - 250 of 734
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Lestienne Isabelle - - 2005
In vitro digestions were performed on pearl millet flours with decreased phytate contents and on two dephytinized or nondephytinized pearl millet grain fractions, a decorticated fraction, and a bran fraction with low and high fiber and tannin contents, respectively. Insoluble residues of these digestions were then incubated with buffer or ...
Pacini Virginia Alejandra - - 2005
The removal of iron and manganese from groundwater using biological treatment methods is almost unknown in Latin America. Biological systems used in Europe are based on the process of double rapid biofiltration during which dissolved oxygen and pH need to be strictly controlled in order to limit abiotic iron oxidation. ...
Horner Harry T - - 2005
This study analyzed soybean seeds from 116 cultivars for total, insoluble, and soluble oxalate (Ox), phytate (InsP6), calcium (Ca), and magnesium (Mg) because of their potential beneficial or harmful effects on human nutrition. These cultivars were divided into four groups (A-D) on the basis of the year and geographic location ...
Hemalatha Sreeramaiah - - 2005
Four common acidulants in Indian dietary, i. e., citric acid, tamarind (Tamarindus indica), amchur (Mangifera indica), and kokum (Garcinia indica) were examined for a possible influence on the bioaccessibility of zinc from selected food grains. Among the four acidulants examined, amchur and citric acid generally enhanced the bioaccessibility of zinc ...
Perlas Leah A - - 2005
Philippine complementary foods are predominantly plant-based, with a low content of readily available iron, zinc, and calcium, and a relatively high amount of phytate, a potent inhibitor of mineral absorption. Some of the phytate is water soluble, and hence can be removed by soaking. In this study we have compared ...
Calvillo Dustin P - - 2005
The category inclusion rule specifies that categories inherit the properties of their superordinates. For example, given that all metals are pentavalent, it can be concluded that all iron is pentavalent. Sloman (1998) showed that people do not fully endorse conclusions that follow from the category inclusion rule. He claims that ...
Jindahra Panitha - - 2005
Polyneuropathy from thiamin deficiency can occur in persons who consume a diet consisting mainly of polished rice with low protein and thiamin content in the setting of excessive physical activity or hypermetabolic states. The authors report here a 17-year-old fisherman who presented with a 3-month history of symptoms and signs ...
Usher Courtney R - - 2005
The reaction of FeS2 (pyrite) with gaseous H2O, O2, and H2O/O2 was investigated using horizontal attenuated total reflection Fourier transform infrared spectroscopy (HATR-FTIR). Spectra were interpreted with the aid of hybrid molecular orbital/density functional theory calculations of sulfate-iron hydroxide clusters. Reaction of pyrite in gaseous H2O led primarily to the ...
Wuehler Sara E - - 2005
OBJECTIVES: Adequate zinc nutriture is critically important for human health, but the development of programmes to control zinc deficiency is limited by the lack of reliable information on population zinc status. The present analyses were conducted to: (1) estimate the absorbable zinc content of national food supplies; (2) compare this ...
Mamiro Peter S - - 2005
Infants in Tanzania are particularly vulnerable to under-nutrition during transition from breastmilk (as the only source of nourishment) to solid foods. A cross-sectional study was undertaken in Kilosa district in Tanzania to determine the feeding practices and the extent of wasting, stunting, and iron-deficiency anaemia. The study was done in ...
Weinberger Katinka - - 2005
BACKGROUND: Evaluation of agricultural research often neglects consumption and nutrition aspects. Yet agricultural research can address micronutrient malnutrition by improving both quantity and quality of food intake. OBJECTIVE: To briefly review the conceptual linkages between agriculture and nutrition, to estimate the strength of the relationship between iron intake and productivity ...
Schümann K - - 2005
OBJECTIVE: Combating iron deficiency in toddlers with iron-fortified food has proved difficult in countries with phytate-rich diets. For this purpose, a new haem iron preparation was developed. The study compared changes in iron status after administration of refried beans with beans fortified with a haem iron preparation or ferrous sulphate ...
Hodges Marcus - - 2005
Plasmodium falciparum iron regulatory-like protein (PfIRPa) has homology to both mammalian iron regulatory proteins and aconitases and is capable of binding RNA iron response elements. We examined the subcellular localization of PfIRPa and its enzymatic properties at low oxygen tension. Differential digitonin permeabilization of isolated trophozoites with subsequent Western blot ...
Hile Arla G - - 2005
The availability of multiple sources of food and drink has a profound influence on choice behavior in rodents. It is not known how other taxa might respond to the same kind of variation in availability. We tested European starlings (Sturnus vulgaris) with various combinations of unadulterated and repellent-treated (0.025% citronellyl ...
Al-Wahsh Ismail A - - 2005
The consumption of foods made from soybeans is increasing because of their desirable nutritional value. However, some soy foods contain high concentrations of oxalate and/or phytate. Oxalate is a component of calcium oxalate kidney stones, whereas phytate is an inhibitor of calcium kidney stone formation. Thirty tested commercial soy foods ...
Salo Pia - - 2005
Clinical trials have shown that an intake of 2 to 3 g/day of esterified plant stanol--when incorporated in margarines or spreads--significantly reduces serum total and low-density lipoprotein (LDL) cholesterol concentrations without affecting serum high-density lipoprotein cholesterol or triglyceride levels. There is also a growing interest in incorporating cholesterol-lowering ingredients into ...
Pynaert I - - 2005
OBJECTIVE: To investigate the dietary iron intake and food sources of iron in Flemish adolescents. DESIGN: Cross-sectional survey; dietary assessment method: a 7-day estimated food record. SETTING: Private and public secondary schools in Ghent, a city in the Dutch-speaking part of Belgium. SUBJECTS: A total of 341 adolescents (129 boys ...
Deegan Heather - - 2005
PURPOSE: This study assessed the impact of dietary intake and lifestyle factors on iron status in adolescents. METHODS: Iron status, dietary intakes and relevant lifestyle behaviors of 396 healthy adolescents were assessed using food frequency questionnaires, a lifestyle survey, anthropometric measures, and blood analysis for serum ferritin, percent transferrin saturation, ...
Augspurger Nathan R - - 2005
Acid hydrolysis of dehulled soybean meal (SBM) and corn gluten meal (CGM) followed by chromatographic amino acid analysis (ninhydrin detection) revealed substantial quantities of S-methylmethionine (SMM) in both ingredients (1.65 g SMM/kg SBM; 0.5 g SMM/kg CGM). Young chicks were used to quantify the methionine- (Met) and choline-sparing bioactivity of ...
Pappu Asokan - - 2006
During metallic zinc extraction from zinc sulphide or sulphide ore, huge quantity of jarosite is being released universally as solid residues. The jarosite mainly contains iron, sulphur, zinc, calcium, lead, cadmium and aluminium. Jarosite released from such industrial process is complex and its quality and quantity make the task more ...
Promchan Jeerawan - - 2005
A dynamic continuous-flow dialysis (CFD) method with on-line electrothermal atomic absorption spectrometric (ETAAS) and pH measurements for study of simulated gastrointestinal digestion has been developed for prediction of iron bioavailability. The method used to estimate mineral bioavailability was based on gastric digestion in a batch system then dynamic continuous-flow intestinal ...
Birlouez-Aragon I - - 2005
Foods are complex mixtures of macro- and micronutrients, which interact, leading to oxidation, glycation, and hydrolysis upon heating (e.g., sterilization, cooking) and storage. Their nutritional quality and safety are consequently affected, justifying the need for accurate monitoring of the evolution of the food composition during processing and shelf life. Classical ...
Kapsokefalou Maria - - 2005
The objectives of the present study were: to compare the solubility and dialyzability of various iron fortificants (iron pyrophosphate, ferrous bis-glycinate, ferrous gluconate, ferrous lactate, ferrous sulfate) added, in the presence of ascorbic acid, to pasteurized milk samples produced under laboratory conditions; and to compare the solubility and dialyzability of ...
Verrall Tanya - - 2005
BACKGROUND: We evaluated the impact of a food-based approach in promoting iron-rich complementary feeding for mothers with infants at-risk for iron deficiency anemia (IDA). METHODS: A repeat cross-sectional design was used to assess the impact of communication strategies to disseminate key messages promoting iron-rich complementary food. Two groups of mothers ...
Lynch Sean R - - 2005
Iron deficiency continues to be the most prevalent nutritional deficiency disorder in the world, affecting an estimated two billion people, most of whom live in developing countries. It has far-reaching effects on the health, well-being and productivity of those affected. Iron fortification of food is regarded as the most cost-effective ...
Willems Maxime - - 2005
The free-living nematode Rhabditophanes sp. has recently been placed in a clade of animal parasites and may be a unique example of a reversal to a nonparasitic lifestyle. Detailed morphological analysis of the intestine reveals the unusual and unique structure of splitting microlamellae forming a meshwork with cavities along the ...
Dwyer Joseph R - - 2005
Lightning is a particularly unsettling product of bad weather. It causes more deaths and injuries in the U.S. than either hurricanes or tornadoes do, and it strikes without warning, sometimes with nothing but blue sky overhead. In central Florida, where I live, thunderstorms are a daily occurrence during the summer, ...
Jha Deepti - - 2005
Maintenance of stable pH through provision of adequate buffering is of importance to many pollutant removal processes where either acid or base is produced as a reaction product. The objective of this study was to evaluate the suitability of pyrite (FeS2) as an in situ buffering agent for arresting pH ...
Altman Susan J - - 2005
Synchrotron-source X-ray computerized microtomography (CMT) was used to evaluate the adsorptive properties of aggregate soil samples. A linear relationship between measured mean mass attenuation coefficient (sigma) and mass fraction iron was generated by imaging mineral standards with known iron contents. On the basis of reported stoichiometries of the clay minerals ...
Hara-Chikuma Mariko - - 2005
ClC-5 chloride channel deficiency causes proteinuria, hypercalciuria, and nephrolithiasis (Dent's disease). Impaired endosomal acidification in proximal tubule caused by reduced chloride conductance is a proposed mechanism; however, functional analysis of ClC-5 in oocytes predicts low ClC-5 chloride conductance in endosomes because of their acid interior pH and positive potential. Here, ...
Kesa H - - 2005
OBJECTIVES: The main purpose of this study was to determine the anthropometric indications and nutritional intake of pregnant and lactating women in the Vaal Triangle (n = 431). DESIGN AND METHODS: A validated quantitative food frequency questionnaire was used in this study. Trained fieldworkers conducted interviews with the help of ...
Kamjunke N - - 2005
The acidic mining lakes of Eastern Germany are characterized by their extremely low pH and high iron concentrations. Low concentrations of CO2 in the epilimnion due to the low pH and reduced light transmission due to dissolved ferric iron potentially limit phytoplankton primary production (PP), whereas dissolved organic carbon (DOC) ...
Hao Shuzhen - - 2005
Recognizing a deficiency of indispensable amino acids (IAAs) for protein synthesis is vital for dietary selection in metazoans, including humans. Cells in the brain's anterior piriform cortex (APC) are sensitive to IAA deficiency, signaling diet rejection and foraging for complementary IAA sources, but the mechanism is unknown. Here we report ...
Shell-Duncan Bettina - - 2005
The purpose of this study was to examine the context of iron deficiency and feeding patterns of iron-rich foods among northern Kenyan school-aged children. A nutrition survey was conducted among 300 subjects in two Rendille communities, Korr and Karare. The objectives were to determine the prevalence of iron deficiency as ...
Tovar Luis Raul - - 2005
Fe and Zn deficiencies among the Mexican population are widespread, and one-third of children and women of childbearing age are anemic. Since diets that are Fe-deficient are most probably also Zn-deficient, a proprietary process was developed to fortify corn tortilla with these trace elements at the first stage of treatment ...
Hotz C - - 2005
OBJECTIVE: To introduce practices for improving complementary feeding and evaluate their adoption and association with improved dietary intakes. DESIGN: A quasiexperimental pilot study comparing dietary intakes from complementary foods among three intervention communities and one control community before and after the intervention, and adoption of new complementary feeding practices among ...
Davidsson Lena - - 2005
BACKGROUND: Phytic acid is a strong inhibitor of iron absorption from fortified foods. In adults, this inhibitory effect can be overcome by adding ascorbic acid with the iron fortificant or by using a "protected" iron compound such as NaFeEDTA. In addition, the use of NaFeEDTA as an iron fortificant has ...
Meng Fanhua - - 2005
Iron deficiency is probably the most widespread micronutrient deficiency in humans. Since rice is the main staple food for more than half of the global population, improving the iron content and bioavailability in rice is a perspective and an effective way to alleviate or even solve this problem. The present ...
Salgueiro J - - 2005
Food fortification has been shown to be an effective strategy to overcome iron malnutrition. When a new iron compound is developed for this purpose, it must be evaluated from a nutritional and technological point of view before adding it into foods. In this way, we have evaluated ferrous gluconate stabilized ...
Pérez-Expósito Ana B - - 2005
After 1 y of distributing a milk-based fortified weaning food provided by the Mexican social program PROGRESA, positive effects on physical growth, prevalence of anemia, and several vitamin deficiencies were observed. There was no effect on iron status, which we hypothesized was related to the poor bioavailability of the reduced ...
Williams Patricia L - - 2005
A food frequency questionnaire (FFQ) was developed and tested for assessing iron nutrition in infants through comparison with a three-day food record (3d-FR) and measures of iron status. Parents of 148 infants aged eight to 26 months completed a 3d-FR and an FFQ. Blood was collected for measures of hemoglobin ...
Díaz Mariana - - 2004
Caseinophosphopeptides (CPP) and casein hydrolysates have been shown to bind prooxidant metals such as iron, but their effectiveness as metal chelators to inhibit lipid oxidation in foods has still not been fully investigated. Thus, the antioxidant activity of CPP and casein hydrolysates was studied in phosphatidylcholine liposome model systems. CPP ...
Kloots Willem - - 2004
Iron deficiency is the most common nutritional disorder worldwide. Iron fortification of foods is considered to be the most cost-effective long-term approach to reduce iron deficiency. However, for fortified foods to be effective in reducing iron deficiency, the added iron must be sufficiently bioavailable. In this study, fortification of whole-grain ...
Remondetto Gabriel E - - 2004
The influence of whey protein hydrogel microstructure, filamentous versus particulate, on iron delivery was studied under different conditions, including simulated gastrointestinal conditions. Experiments were initially conducted to determine the impact of pH and enzymes on iron release. The results show that different iron release profiles can be obtained from filamentous ...
Wieland A - - 2005
In situ microsensor measurements were combined with biogeochemical methods to determine oxygen, sulfur, and carbon cycling in microbial mats growing in a solar saltern (Salin-de-Giraud, France). Sulfate reduction rates closely followed the daily temperature changes and were highest during the day at 25 degrees C and lowest during the night ...
López M A Amaro - - 2004
Iron is an essential trace element in human nutrition and its deficiency is a world nutritional problem. Due to the high prevalence of anaemia in developing and industrialized countries, it is necessary to maintain a suitable iron intake through diet in order to achieve an appropriate status of this element ...
Wegmüller Rita - - 2004
Particle size is an important determinant of Fe absorption from poorly soluble Fe compounds in foods. Decreasing the particle size of elemental iron powders increases their absorption. The effect of a reduction in particle size on the bioavailability of ferric pyrophosphate (FePP) is unclear. Encapsulation of iron compounds for food ...
Ruel Marie T - - 2004
This research assesses whether fortified cereal blends such as corn-soy blend (CSB) or wheat-soy (WSB) blend can significantly contribute to improving the quality of the diet of infants and young children 6 to 23 months of age. A series of participatory recipe trials was conducted to assess current complementary feeding ...
Orton Christopher R - - 2004
There is little information available on the variation in lignin content of growth rings in hardwoods. This study examines whether infrared microscopy can detect intra-incremental differences in the chemical composition of three hardwoods (R. pseudoacacia, P. Americana, and G. triacanthos) and the effect of such differences on the delignification of ...
Hurrell Richard F - - 2004
Iron deficiency remains a major global health problem affecting an estimated 2 billion people. The World Health Organization ranked it as the seventh most important preventable risk for disease, disability, and death in 2002. Since an important factor in its causation is the poor bioavailability of iron in the cereal-based ...
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