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::This communication offers suggestions for programs and policies in relation to stunting within the infant population. The proposal is based on current social strategies and the results of research carried out on Chilean school children. These results indicate that height deficit is concentrated in sectors of the popul...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1998-12-01 00:00:00
abstract::Mean adult height is an indicator of very long-term (centuries) socioeconomic and nutritional trends in homogeneous populations. At the same time, changes in height have also been shown to be an indicator of long-term (generations) living conditions in homogeneous populations, and thus, a good complement to the usual ...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 历史文章,杂志文章
doi:
更新日期:1991-06-01 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::There were made four nutrition experiments using pork in growing process, with an approximate weight of 14.2 kilograms. In each experiment, it was made a substitution in equals parts of corn flour and soy flour for raw Canavalia flour or processed through alkaline storage, autoclaved or extrusion. In the first three e...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1992-09-01 00:00:00
abstract::Volatiles from aqueous extract of peppermint commercial sachets were investigated through gas chromatography/flame ionization detection (GC/FID) and GC/mass spectrometry (MS). Samples were prepared under similar conditions as in homemade tea. Volatiles were isolated using solid phase extraction method (SPE) with Porap...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2012-12-01 00:00:00
abstract::The Mediterranean diet has been described as a model from a nutritional and sanitary point of view due to the proportion in which it includes all the food groups. Nevertheless, in the last few years changes in lifestyle have triggered a move away from the recommended intakes in relation to several nutrients. The intak...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2004-06-01 00:00:00
abstract::The aim of this study was to characterize and to evaluate the lipidic composition of mexican marine fishes with special emphasis in n-3 fatty acids as nutraceuticals. The edible portion of 25 species: humidity (H), crude protein (CP), total lipids (TL) and fatty acids (FA). The average content (g/100g edible portion) ...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2004-09-01 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::Whole blood concentrations of selenium were determined in 776 dairy cows and calves from 28 farms located in three States (Aragua, Carabobo and Guárico) of the central zone of Venezuela and in Portuguesa State. Selenium levels largely varied according to both the geographic distribution and animals breed. Cattle from ...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1977-06-01 00:00:00
abstract::The World Health Organization (WHO) follows a complex and rigorous process to develop global guidelines. With regard to nutrition-related guidelines, the joint participation of national authorities from Member States and their partners, including those of the social economy, is key to strengthening the process of evid...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2015-03-01 00:00:00
abstract::The purpose of this research was to determine the effect of including fresh and ensilaged coffee pulp in rations for monogastric animals, and find the best protein and coffee pulp levels in rations for rats. Fresh coffee pulp and pulp ensilaged for 12 months were used; both kinds of pulp were sun-dried before incorpor...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1985-09-01 00:00:00
abstract::The pregnant teenager is considered at nutritional risk specially due to the fact that most of them still growing and developing. Therefore the demands of pregnancy compete with those of growth causing an extra need for her and the fetus (1). Iron, zinc and folate are essential nutrients that are frequently low on the...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2001-09-01 00:00:00
abstract::The aim of this study was to examine in preschool children the effects of different levels of starch and dietary fiber of a meal time on the immediate food and energy intake (in the same meal time) and in the following meal (subsequent intake). The study was performed in 50 children both genders, with ages ranging fro...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1994-03-01 00:00:00
abstract::Some essential aspects of families with malnourished infants being treated in the Nutritional Rehabilitation Centers managed by the Corporation for Infant Nutrition (CONIN) of Santiago, Chile, were studied in depth. The purpose was to identify and quantify some variables of the family environment as a previous necessa...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1979-06-01 00:00:00
abstract::Protein extraction and separation in polyacrylamide slab gel electrophoresis with Laemmli system (SDS-PAGE) were used to establish the detection level of protein raw materials in mixtures with porcine meat in boneless cooked ham. Model systems of boneless cooked ham with soy protein isolates, caseinate, skim powdered ...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2006-09-01 00:00:00
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::In the present investigation we ascertained the stability of lycopene, beta-carotene, ascorbic acid, polyphenolic compounds and total antioxidant capacity (AC) during the process of concentrating tomatoes into two tomato pastes (10 and 15 degrees Brix). Thermal processing increased the content of lycopene, total pheno...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2010-06-01 00:00:00
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journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2003-06-01 00:00:00
abstract::Food consumption and nutritional status were evaluated on 419 children having meals at school located in the surrounding of Santa Fe (Argentina). The protein, energy and calcium content of the meals were analyzed. Anthropometrical evaluation was made by the following indicators: weight to age, height to age and weight...
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 descriptive study presents a series of factors that can influence food habits, being the educational level the most important independent variable. The sample included families that had infants (1-2 years) and preschool children (2-6 years). These families belonged to all socio-economic levels, not being well rep...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1977-03-01 00:00:00
abstract::The purpose of the present work was to develop a blended beverage based on green coconut (Cocos nucifera L.) water, pineapple (Ananas comosus) and acerola (Malpighia emarginata D. C.) pulps as a ready to drink product, combining the sensory acceptance, nutritional and functional compounds of these fruits. Ten formulat...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2009-12-01 00:00:00
abstract::A prediction equation to estimate body fat mass from skinfold thickness for healthy elderly was developed using a four compartmental (4C) model as criterion method. This study included 202 subjects = 60 y old. The measurements of total body water, bone mineral content and body density were included in the 4C model equ...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2007-12-01 00:00:00
abstract::Bread from wheat flour is one of the most widely consumed products by the Mexican population. In this study, proximate composition, and mineral content were determined, and cost per/gram of protein and energy of traditional and industrial bread were compared. Seven types of bread were analyzed: bolillo, virginia, whit...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1999-06-01 00:00:00
abstract::This is the first study to establish the prevalence of overweight and obesity among Ecuadorian adolescent students. The population studied was made up of 2.829 students, 1.461 females and 1.368 males between 12 and <19 years of age. One thousand four hundred and thirty five students were registered in 60 schools, publ...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2008-06-01 00:00:00
abstract::The protein quality of edible mushrooms besides being species/strain specific, could also vary with the growth substrate. The aim of this work was to determine the amino acid composition of the protein from edible mushrooms--Pleurotus sp. "Florida" (L1), P. ostreatoroseus (L2) and P. sajor-caju (L3), cultivated on ban...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1998-12-01 00:00:00
abstract::In order to determine the nutritional adequacy of diets MIT 200 and NIH 2000 on the growth and development of experimental animals, these two diets were fed to two groups of animals during three periods of development: 1) pregnancy; 2) lactation, and 3) post-weaning. These diets were compared with a diet that satisfie...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1983-06-01 00:00:00
abstract:OBJECTIVE:To know the distribution of certain anthropometric parameters and cardiovascular risk factors: hypercholesterolemia, arterial hypertension, obesity, sedentary lifestyle, smoking and diabetes mellitus in the population of the Canary Islands. DESIGN:Epidemiological, cross-sectional study, with description of p...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:2000-03-01 00:00:00
abstract::Up until now, the composition of goat's milk has not been well known. However, every day it is more and more evident that this milk is quite different from cow's and other mammal's milk. This difference depends on a major concentration in some of milk elements. Caseins, in goat's milk are found in a minor concentratio...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1992-06-01 00:00:00
abstract::A laboratory study of wheat stored at two different levels of moisture content with and without presence of Sitophilus zeamais Motschulsky was performed. Flexible PVC and polythene films as seals were used in order to examine their effectiveness to maintain the wheat quality by comparing changes in moisture content, g...
journal_title:Archivos latinoamericanos de nutricion
pub_type: 杂志文章
doi:
更新日期:1992-12-01 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