Abstract：
:With the objective of producing packaged tortillas with a longer shelf-life which, at the same time, have the qualities of fresh tortillas, the effects of preservatives and texture conditioners on rheologic and sensory characteristics and shelf-life of tortillas made with nixtamalized corn flour were studied. The preservatives evaluated were potassium sorbate (SK) and calcium propionate (PCa). The texture conditioners used were carboxymethylcellulose (CMC) and sodium stearyl-2 lactilate (SS2L). Fresh tortillas were evaluated for pH, yield, texture, elasticity, and sensory quality. The packaged tortillas were packed in polyethylene bags and stored at 4 degrees C. The tortillas with 0.1% SK, 0.1% PCa, and 0.25% SS2L were the most acid (pH = 5.12), had the longest shelf-life (53 days with no microorganism growth), and the lowest total count of aerobic mesophylls (23 colony forming units). The highest yields resulted from the treatment with 0.5% CMC, producing the most elastic tortillas but those with the shortest shelf-life (18 and 24 days). The sensory evaluation, done ten days after packing by five trained panel members, judged that best treatment was that which contained 0.1% SK, 0.1% PCa, and 0.5% CMC. These tortillas were judged to be the softest and most elastic. For the remaining attributes, the best tortillas were those processed by the traditional method (fresh). In the pleasure test, the opinion of the consumers was that the tortilla with the best flavor was the traditionally prepared tortilla. Nevertheless, the treatments with mixtures of preservatives and texture conditioners were graded with scores similar to those obtained by two commercial packaged tortillas.
journal_name
Arch Latinoam Nutrjournal_title
Archivos latinoamericanos de nutricionauthors
Ordaz Ortíz JJ,Vázquez Carrillo MGsubject
Has Abstractpub_date
1997-12-01 00:00:00pages
372-6issue
4eissn
0004-0622issn
2309-5806journal_volume
47pub_type
杂志文章abstract：:The chemical composition of the virgin oils obtained by mechanical pressing of grape seed belonging of the varieties Syrah and Tintorera as well as a mixture of seeds of the varieties Syrah, Tempranillo and Merlot was determined. Official analytical methods were employed for the determination of two quality indexes (a...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2009-06-01 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：:Copper (Cu) deficiency is associated with changes in arterial pressure. The effect depends of the age of initiation of the copper-deficient diet. Copper deficiency started at a young age causes hypotension. When initiated in older or adult animals, copper deficiency can cause hypertension. A case-control study was car...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2003-09-01 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：:Iodine deficiency during intrauterine and early postnatal life of the rat produces a transient decrease in the DNA content of brain and cerebellum, which is spontaneously recovered without replacement therapy. Results of the study revealed that DNA synthesis measured through thymidine-H3 incorporation to DNA, was incr...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1984-06-01 00:00:00
abstract：:Hypervitaminosis A induces the following changes in the rat sublingual gland: smaller size acini with lower cells and smaller nuclei. The serous demilunes show smaller cells and nuclei. The striated ducts show smaller and disorganized cells with smaller nuclei. These data were confirmed by morphometric techniques. ...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1980-06-01 00:00:00
abstract：:The purpose of this study was to evaluate a set of teaching materials on food, nutrition and agriculture, adapted at the Institute of Nutrition and Food Technology (INTA), University of Chile, within the scope of a project with AID and the School of Agronomy of the Chilean Catholic University (U. C.) aimed at incorpor...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1985-06-01 00:00:00
abstract：:In order to pursue a study on the growth and development of French-Canadian children from birth to 6 years of age, 496 pregnant women were selected in the Montreal area. A complete survey of the family's social and medical background, along with the parents' height and weight was recorded through a prenatal interview ...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1978-09-01 00:00:00
abstract：:The objective of this study was to correlate the educational achievement (EA) of Chilean elementary and high-school graduates with their food habits. For this purpose, a random sample of 550 schoolers from the Metropolitan Area of Santiago, Chile, graduating from elementary and high school (1:1) of both sexes (1:1), f...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1992-03-01 00:00:00
abstract：:Indicator and foodborne pathogen microorganisms in the "for export" hake fillets manufacturing were investigated in this study. Critical control points were identified and prevention activities and control were proposed during seafood elaboration process. 45 samples of hake from sequential processing operation stages,...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2000-06-01 00:00:00
abstract：:To analyze the behavior of the anthropometric measures during gestation in teenagers and adults pregnant women. The study group was formed by 81 well nourished, healthy pregnant women, 14 teenagers and 67 adults. They were evaluated at Centro de Atención Nutricional Infantil "Antímano". The anthropometric criteria inc...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2001-12-01 00:00:00
abstract：:The aim of this study was to describe the dietary patterns of pregnant women in northern Puerto Rico and explore associations between diet factors with pregnancy related measurements. This analysis is based on the Puerto Rico Testsite for Exploring Contamination Threats (PROTECT), a prospective cohort that is studying...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2015-06-01 00:00:00
abstract：:The nutritional status and some of their conditioning factors of 257 students from 7 to 13 years of age registered at the Integrated Public Education Centers--CIEP's in American, state of São Paulo, are analyzed. Height of students is used to determine the nutritional status, with the classification based on standard ...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1998-03-01 00:00:00
abstract：:A total of 96 pasteurized fruit juice samples obtained at retail level and packed in pure-pak containers were analyzed, to determine their pH and mould yeasts counts. The isolated microflora were identified by macroscopic and microscopic techniques besides biochemical reactions. The pH rate values were the following: ...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1982-09-01 00:00:00
abstract：:The purpose of this work was to reduce the content of crude fibre (CF) and to determine the content of phenolics compounds (PC) and trypsin inhibitors (TI) in safflower meal (SM), in order to recommend the possibility of utilization it in human food. The SM (23.3% of CF, 22.4% of protein and 1.75% of PC was grinded in...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1996-12-01 00:00:00
abstract：:Lupinus albus and Lupinus mutabilis may achieve importance among the andean countries in which soy bean can not grow due to ecological reasons. Both lupin varieties are outstanding because of their high protein and oil content. Its alkaloid content limits the lupins usage; however the bitter substances can be eliminat...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1977-12-01 00:00:00
abstract：:Two experiments were performed to examine the effects of various carbohydrates (fructose, lactose, corn starch, wheat starch and potato starch) on the utilization of iron, on Fe-depleted rats. These received a single meal that contained the test carbohydrate at a 60% level, labelled with 59Fe. The rest of the experime...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1986-12-01 00:00:00
abstract：:The objective of this study was to verify if the diet protein level affects the genesis of the repair tissue in rats submitted to a poly-chloro-vinyl (PVC) sponge implantation, as well as to analyse the possible alterations in the synthesis of the mucopolysaccharides acids (glucosaminoglycans) by the histophotometry t...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1992-12-01 00:00:00
abstract：:We compared the effect of the consumption of seje oil (Oenocarpus bataua), with that of olive oil, on plasma lipids and susceptibility in vitro to oxidation of high density lipoprotein (HDL) in the rat. Two groups often male Sprague Dawley rats were fed ad libitum, for a lapse of eight week, with a purified diets with...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2011-06-01 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：:Mean intakes of dietary fiber (DF) were estimated in the population of Central America and Panama, using the results of dietary surveys conducted in 1969 and 1986 both in rural and urban areas, as well as data on the DF content of foods as consumed in the region. Data on preschool children were also estimated. The res...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1989-09-01 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：:The economic situation of Indonesia is characterized by a large increase in the gross national product which has been on average 7% annually during the last ten years. This was accompanied by rapid urbanization. With the economic improvement, "First World" and "Third World" health and nutrition problems are coexisting...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1997-06-01 00:00:00
abstract：:Legume proteins as a potential source of valuable nutrients, are the object of several studies in order to obtain the best use. A basic knowledge becomes more important for those proteins from species not wholly utilized, before using them as food ingredients. The objective of this work was to determine several struct...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：2004-03-01 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 effect of feeding 24 to 52-days-old male rats of the Wistar strain, with beans diet deficient in sulfur-containing amino acids or supplemented with 0.3% DL-methionine and two corn oil concentrations, 2% and 20% (g/kg/diet), on the glutathione content (GSH) in liver, and on the renal gamma glutamyl transpeptidase (...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1990-06-01 00:00:00
abstract：:The energy requirements in free-living elderly rural people were investigated by measuring physical activity level and basal energy expenditure using a physical activity questionnaire and indirect calorimetry, respectively. Approximately 65 different occupational and leisure activities over the previous 12 months were...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1999-06-01 00:00:00
abstract：:Food Composition Tables should be considered as national wealth and as valuable tools for utilization in food and nutrition, in nutritional therapy, in agricultural planning and production, in food guides, and in the food industry for the formulation of information on the product that appears in the label. They should...
journal_title：Archivos latinoamericanos de nutricion
pub_type： 杂志文章
doi：
更新日期：1989-09-01 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 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
