Abstract:
:The vapor pressure at four temperatures and 10 moisture contents in a range between 26.8 and 3.6 g/100 dry matter, were determined by the manometric method in two samples of milled amaranth seeds, known as "ataco" or "sangoracha". For each humidity, the relationship between vapor pressure of the flour and vapor pressure of water at different temperatures is satisfactorily described by power equations, which are herein presented. The slope was used in the determination of latent heat of vaporization, according to Othmer's law. An exponential equation describing the relationship between the rate of latent heat and moisture content on a dry basis are established and discussed. This allows calculation with sufficient exactitude of the latent heat of vaporization values in amaranth, particularly at low moisture contents. The data are useful in calculations for drying or extrusion operations, largely applied in cereals.
journal_name
Arch Latinoam Nutrjournal_title
Archivos latinoamericanos de nutricionauthors
Alvarado JD,Toaza E,Coloma Gsubject
Has Abstractpub_date
1990-09-01 00:00:00pages
369-78issue
3eissn
0004-0622issn
2309-5806journal_volume
40pub_type
杂志文章abstract::The study herein reported presents information on the dietary fiber content of four food groups consumed in Central America. These are: cereals, grains and products; raw and processed beans; raw and processed vegetables, and starchy foods such as potatoes, cassava and plantain. Besides data on soluble and insoluble fi...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1990-09-01 00:00:00
abstract::The process of osmotic dehydration in apple rings at 40 degrees, 50 degrees and 60 degrees C in two osmotic agents were studied. The agents were similar in concentration, water activity and viscosity but differed in composition. The weight loss, water content, solids uptake and Brix showed differences in the medius st...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1994-06-01 00:00:00
abstract::The nutritive value of calf stomach waste from rennet production was assessed. The by-product was either drum-dried at the industry (DDSW) or mildly dried (60 degrees C) in a ventilated oven at the laboratory (MDSW). Part of the sample treated at the laboratory was autoclaved before drying (ASW). The protein and ether...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1981-09-01 00:00:00
abstract::The objective of the present work was to study functional and thermal properties of reineta (Brama australis) frozen meat, analysed by water retention capacity (WRC), gel forming capacity (GFC), texture, emulsifying capacity and differential scanning calorimetry (DSC). For this study, reineta fillets were obtained and...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2006-12-01 00:00:00
abstract::The effect of the addition of lactoferrin on Staphylococcus aureus to Minas frescal cheese was evaluated. Three cheeses were made: control (S. aureus), Lf-2% (2% lactoferrin + S. aureus) and Lf-4% (4% lactoferrin + S. aureus). Cheeses were packaged and S. aureus populations were determined on days 1, 8, 15, 22 and 29 ...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2012-03-01 00:00:00
abstract::It is a well-known fact that the legume Khesari (Lathyrus sativus) causes lathyrism, a disease characterized by paralysis of the lower limbs in human beings. The toxic constituent is an amino acid identified as B-Oxalyl-Amino L-Alanine (BOAA). It has been reported that if the legume is boiled for two hours and the wat...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1987-03-01 00:00:00
abstract::The purpose of this research was to describe the overweight prevalence and factors potentially associated to it in adults residents in areas of social exclusion. The sample consisted of 3214 individuals, aged 20 to 69 years, in shanty town in Maceió-AL, northeast of Brazil. Body mass index (BMI) was used in the nutrit...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2009-03-01 00:00:00
abstract::The effects of frozen condition on the quality of three sweet corn ears (2038, 2010, 2004) and the pattern (Bonanza), were evaluated. Biometrics characteristics like ear size, ear diameter, row and kernel deep were measured as well as chemical and physical measurement in fresh and frozen states. The corn ears were fro...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2004-12-01 00:00:00
abstract::The weight, head, chest and arm circumference of four hundred and sixty-one infants in Jamaica were measured during the first twenty-four hours of birth. The purpose of this work was to draw attention to the arm circumference as a possible indicator of the stage of maturity at birth and correlate this parameter agains...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1977-09-01 00:00:00
abstract::Six groups of 1-day-old Warren chicks (seven per group) were fed for 15 days on diets with the protein supplement made of mixtures of soybean protein and dried yeast Saccharomyces carlsbergensis recovered from beer. The purpose was to establish the maximum substitution level of the soybean protein isolate by dried yea...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1990-03-01 00:00:00
abstract::Food fortification is an interesting strategy to treat and prevent iron anemia. This study aims to quantify the iron in yoghurt, with gelatin and sugar and without, prepared in iron and glass containers. Sensorial test was use to evaluate the acceptance and preference of the both products. The yoghurt was prepared in ...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2005-12-01 00:00:00
abstract::This study aimed to estimate the prevalence of abdominal obesity and investigate their association with parameters markers of metabolic syndrome (MS) and its risk factors in female adolescents. It is a cross-sectional study with 150 adolescents from 10 public schools in the Federal District, Brazil. The presence of ab...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2011-03-01 00:00:00
abstract::In order to avoid ponderable errors among the anthropometrists working in a project of school health, a training model was developed. Four subjects were trained (A, B, C and D). Significant and highly significant differences in the reading of skinfold (F = 5.15) and height (F = 8.17) were observed only with subject C....
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1981-06-01 00:00:00
abstract::Chile had a rapid epidemiological and nutritional transition with an increase in risk factors for chronic diseases and obesity. Dietary changes have occurred, mostly an increase in consumption of foods high in fat, sugar and salt, as well as a decrease in physical activity. This has led to a marked increase in obesity...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2010-12-01 00:00:00
abstract::LATINFOODS is the Latin American organization, affiliated to INFOODS, involved in the generation and compilation of data on the composition of foods, and with the methods of analysis and the users of the data. UN and FAO are the organizations which have supported the activities of this network, through the realization...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1999-09-01 00:00:00
abstract::This article presents the methodology to incorporate nutrition education in Chilean primary schools. In 2001, nutritional status, food and nutrition knowledge, attitudes and practices of 1701 school children from ten urban and rural public schools (3rd to 7th grade) were evaluated. This information was necessary to de...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章,评审
doi:
更新日期:2004-06-01 00:00:00
abstract::Mangos at different maturity stages were waxed with TAG and allowed to ripe at 23 degrees C and 16 degrees C, with a relative humidity of 60-70%. Unwaxed fruits held under the same conditions were used as controls. Results showed that in both varieties the waxing of the fruits extended their shelf life, improved their...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1976-09-01 00:00:00
abstract::As part of the Early Malnutrition and Its Effects on Youth Project, a study of the reliability of anthropometric measures was carried out through the re-measurement of 226 adolescents of the rural area of Guatemala. In all anthropometric variables, the intra-measure coefficients of reliability were higher than 0.96 an...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1989-09-01 00:00:00
abstract::Resistant starch (RS) Hi Maize 260, Sphagnum magellanicum Moss (SM) both natural resources rich in total dietary fiber, and defatted hazel nut flour (DHN) as protein resource were used in the development of a pastry product (queque) with functional characteristics. Taguchi methodology was utilized in the optimization ...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2007-03-01 00:00:00
abstract::Krispy King, Víctor and 324, super sweet hybrids (sh2) were cultivated in San Joaquín, estado Carabobo, Venezuela. The scheme was stablished to produce refrigerated fresh ears to be commercialized. The chemistry, microbiology and sensorial characteristics were evaluated at 0; 7; 14; 21 and 28 days of storage. One hund...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2001-06-01 00:00:00
abstract::Currently the three main widely used strategies to control micronutrient deficiencies are food diversification, fortification, and consumption of medicinal supplements. In Tanzania a fourth strategy has been evaluated in school children, and is to be studied in pregnant and lactating women. The dietary supplement come...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2001-03-01 00:00:00
abstract::Recently, elevated homocysteine blood concentrations have been identified as an independent risk factor for the development of atherosclerotic lesions. The amino acid homocysteine is metabolized in the human body involving the vitamins folic acid, B12 and B6 as essential cofactors and coenzymes, respectively. There is...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章,评审
doi:
更新日期:1997-06-01 00:00:00
abstract::The use of a powdered soy extract (30% protein) as a supplement in infant feeding for children from 2-24 months who had stopped breastfeeding was tested for acceptance and impact in two semi-rural communities in the State of Bahia in Northeast Brazil. The product was supplied gratuitously by a Brazilian soy bean proce...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1983-12-01 00:00:00
abstract::The present study revealed that the drum-drying and spray-drying procedures used on the pepitona (Arca zebra) hydrolysate, as well as the storage time, exert a deteriorative significant effect on the functional properties of both hydrolysates. The greatest and more significant losses of the majority of such properties...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1985-12-01 00:00:00
abstract::Ecuador is undergoing a nutrition tran- sition where overweight/obesity coexist with under-nutrition. The objective of this study was to determine nutritional status, physical activity, fruit and vegetables consumption frequency among school-going adolescents in the canton of Paute and further explore if these variabl...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2016-09-01 00:00:00
abstract::The aim of the present study was twofold: a) to determine the agreement between bioelectrical impedance analysis (BIA) and dual energy X-ray absorptiometry (DEXA) for the estimation of skeletal muscle mass (SMM), and b) to analyze the predictive power of anthropometric variables and BIA for the prediction of SMM in th...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2008-12-01 00:00:00
abstract::Zinc is an essential element, important for early growth and development, and immune competence, which deficiency might be especially critical in preterm infants. Since published data have shown that some preterm milks have abnormally low zinc values, we decided to measure zinc levels in term and preterm milk, in orde...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2001-03-01 00:00:00
abstract::Water activity, moisture content, pH, total sugars and sodium chloride content of commercial foods with reduced water content found in Chilean supermarkets were determined. The sample included meat, dairy, fruits and confectionary products. Principles involved in the reduction of water activity are discussed for each ...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1986-12-01 00:00:00
abstract::An acidificant psychrotrophic bacteria was isolated from raw milk from Bromocresol Purple Agar medium, after incubation at 7 degrees C, for 10 days. Cells from the culture, at the beginning of the stationary phase, were inoculated sterilized in powder milk, reconstituted at 12% of total solids, resulting in approximat...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1999-03-01 00:00:00
abstract::The percentiles (3,10,25,50,75,90 and 97) of the subscapular/triceps Index (SS/TR), obtained in a sample of 7286 subjects (3721 males and 3765 females) aged 5 to 20 years, were calculated. Median values of SS/TR are generally higher in females up to the age of 13 years approximately, and show a pattern of peripheral d...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1993-09-01 00:00:00