[Purification and characterization of proteases from Pseudomonas fluorescens and their effects on milk proteins].

Abstract:

:The increase in the levels of psychotropic bacteria in the raw milk during the refrigeration period, could lead to the production of heat-resistant enzymes responsible for the deterioration of long-life industrial dairy products. Pseudomonas fluorescens is the psychotropic bacteria most commonly found in milk in Southern Chile. In the present work the enzymatic proteinases extract of cultures of Pseudomonas fluorescens RV10 at 6 degrees C in raw milk just milked were purified. It was found that the proteases corresponds to a protein with a molecular mass of 49.5 kD, that presents heat resistance and rapidly attacks the k-casein continuing with the b-casein. It is possible to conclude that storage of the milk for long-life products at 6 degrees C is risky, as it causes the loss of quality for the proteases of psychotropic bacteria.

journal_name

Arch Latinoam Nutr

authors

Costa M,Gómez MF,Molina LH,Simpson R,Romero A

subject

Has Abstract

pub_date

2002-06-01 00:00:00

pages

160-6

issue

2

eissn

0004-0622

issn

2309-5806

journal_volume

52

pub_type

杂志文章
  • [Caries prevention through a nutritional vehicle].

    abstract::In order to evaluate the efficacy of fluoridated milk as a cariostatic nutritional product, the biological and technical possibilities of adding fluoride (F) as monofluorophosphate (MFP) to milk were studied, together with a preliminary cost estimation for this procedure. F ingestion by preschool children pertaining t...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: Villa A,Guerrero S,Cisternas P,Mönckeberg F

    更新日期:1990-06-01 00:00:00

  • [Chemical composition of the virgin oil obtained by mechanical pressing form several grape seed varieties (Vitis vinifera L.) with emphasis on minor constituents].

    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:

    authors: Navas PB

    更新日期:2009-06-01 00:00:00

  • [Characteristics of urban families with malnourished infants].

    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:

    authors: Alvarez ML,Mikacic D,Ottenberger A,Salazar ME

    更新日期:1979-06-01 00:00:00

  • [Flour from seeds of Canavalia ensiformis L (DC), raw, stored in an alkaline medium, autoclaved or extracted, in diets for growing pigs].

    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:

    authors: Risso JF,Montilla JJ

    更新日期:1992-09-01 00:00:00

  • [Chemical characterization and quantification of fructooligosaccharides, phenolic compounds and antiradical activity of Andean roots and tubers grown in Northwest of Argentina].

    abstract::There is great interest in consuming foods that can provide the nutrients for a good nutrition and other health beneficial compounds. The aim of this work was to determine the chemical composition of native foods of the Andean region and to quantify some functional com-ponents. Proximal composition, vitamin C, total p...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: Jiménez ME,Sammán N

    更新日期:2014-06-01 00:00:00

  • [Lipidic pattern of 25 Mexican marine fishes with special emphasis in their n-3 fatty acids as nutraceuticals components].

    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:

    authors: Castro-González MI,Ojeda A,Silencio JL,Cassis L,Ledesma H,Pérez-Gil F

    更新日期:2004-09-01 00:00:00

  • [Nutritional status of women with gestational diabetes and characteristics of newborn].

    abstract::The objective was to determine the relationship between the mother's nutritional status and the newborn's gestational characteristics. A sample of 149 women with gestational diabetes was controlled in the High Risk Obstetric Unit of the Medical Specialties Public Health Center before delivery in the maternity ward of ...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: González Stäger MA,Rodríguez Fernández A,Ortega Quintana V,Oliveras Vega L

    更新日期:2012-12-01 00:00:00

  • Chemical, microbiological and sensory evaluation of a dried salted product produced from sardines (Sardinops caerula) and cereals.

    abstract::The chemical, microbiological and sensory stability of a dried salted product prepared from sardines and cereals was evaluated during a 12-week storage period. The product is named NUTRIPEZ and was produced in 20 kg/lots, both with and without smoke treatment. The product was stored under both tropical and room condit...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: Morales de León JC,Morrisey M,Vallin ME

    更新日期:1991-09-01 00:00:00

  • [Food habits].

    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:

    authors: Luz AM,Teresa GM,Margarita V,Graciela J,Vivien G

    更新日期:1977-03-01 00:00:00

  • [Microbiological controls and control points in a hake fillets manufacturing process for exportation].

    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:

    authors: Estevao Belchior S,Pucci OH

    更新日期:2000-06-01 00:00:00

  • Amino acid composition of some Amaranthus sp. grain proteins and of its fractions.

    abstract::This study was carried out to determine the protein content of several Amaranthus sp. grains. Findings revealed this has a high lysine (5.3 to 6.3 of the protein) and sulphur amino acids content (3.4-4.0%), while leucine could well be limiting when those seeds are used as a sole protein source in food. Using the corre...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: Correa AD,Jokl L,Carlsson R

    更新日期:1986-09-01 00:00:00

  • [Validity of an equation based on anthropometry to estimate body fat in older adults].

    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:

    authors: Huerta RH,Esparza-Romero J,Urquidez R,Pacheco BI,Valencia ME,Alemán-Mateo H

    更新日期:2007-12-01 00:00:00

  • [Variation of the lipids and fatty acids in marine shrimps consumed in Venezuela].

    abstract::There are three marine shrimp species in the Venezuelan internal market, two of them are native species, from fisheries, Farfantapenaeus brasiliensis and Litopenaeus schmitti, and one is an exotic species and farmed, L. vannamei. The objectives of this paper were to determine the possible variation of lipid content an...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: Cabrera T,Cabrera G,Rosas J,Velásquez A,Silva M

    更新日期:2005-06-01 00:00:00

  • [Energy requirements in active elderly individuals living in a rural region of Northwest Mexico].

    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:

    authors: Alemán-Mateo H,Reza-Durán GT,Esparza J,Valencia ME

    更新日期:1999-06-01 00:00:00

  • [Psychological, nutritional, socioeconomic aspects and family relations of Mexican children with low school performance].

    abstract::Two groups of children (aged 4-6 years) living in poor urban areas of Hermosillo (Sonora) and having "low" and "adequate" school achievements, were studied with the objective of determining their psychological, social, economic and nutritional characteristics. They were evaluated by means of standardized psychological...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: Vera Noriega A,Mejía LA,Saucedo S,del Refugio Palacios M

    更新日期:1990-12-01 00:00:00

  • [Shelf-life and sensorial evaluation of corn tortillas, made with preservatives and texture conditioners].

    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 pres...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: Ordaz Ortíz JJ,Vázquez Carrillo MG

    更新日期:1997-12-01 00:00:00

  • The role of provitamin A carotenoids in the prevention and control of vitamin A deficiency.

    abstract::That beta-carotene is the main source of vitamin A in fruits and vegetables has been known for many years. Many studies have been conducted to assess bioconversion of beta-carotene to vitamin A in animals. More recently, bioconversion studies using stable-isotopically labeled beta-carotene have been used to assess bio...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章,评审

    doi:

    authors: Nestel P,Trumbo P

    更新日期:1999-09-01 00:00:00

  • Animal wastes. I. Effect of processing on the chemical and protein nutritional value of calf stomach.

    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:

    authors: Caldas SA,Moraes-Santos T

    更新日期:1981-09-01 00:00:00

  • [Mineral composition of edible mushrooms cultivated in Brazil--Pleurotus spp and other dehydrated species].

    abstract::Macrofungi can accumulate some minerals, including toxic metals if present in the substrate. A periodic monitoring of these elements in mushrooms is recommended when the conditions of cultivation are altered. The aim of this work was to evaluate the mineral content of Pleurotus spp (hiratake and shimeji) and of import...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: Sturion GL,de Camargo Ranzani MR

    更新日期:2000-03-01 00:00:00

  • Association between maternal diet factors and hemoglobin levels, glucose tolerance, blood pressure and gestational age in a Hispanic population.

    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:

    authors: Soto R,Guilloty N,Anzalota L,Rosario Z,Cordero JF,Palacios C

    更新日期:2015-06-01 00:00:00

  • [Chemical composition of a typical bread and its energy and protein supply in the population from the northeast of Mexico].

    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:

    authors: López Mazón L,Lozano ME,Grijalva Haro MI,Sandoval S

    更新日期:1999-06-01 00:00:00

  • [Relationship between the included levels of coffee pulp and the protein content in rations for monogastric animals].

    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:

    authors: Gómez-Brenes RA,Bendaña G,González JM,Braham JE,Bressani R

    更新日期:1985-09-01 00:00:00

  • [Formulation and evaluation of a beverage based on whole milk and precooked rice flour].

    abstract::The objective of this research was to formulate and evaluate a beverage based on powdered whole milk and precooked rice flour, with good nutritional contribution, good acceptability and stability, which permits to be included in the nutritional Protection Programs carried out by the National Institute of Nutrition of ...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: Guaipo B,Calderón M,Laprea MT

    更新日期:1993-06-01 00:00:00

  • The effects of different methods of cooking on proximate, mineral and heavy metal composition of fish and shrimps consumed in the Arabian Gulf.

    abstract::This study analyzed eight cooked species of fish and one species of shrimps (grilled, curried, fried and cooked in rice) commonly consumed in Bahrain for their proximate, mineral and heavy metal content. The results reveled that the protein content was in the range of 22.8-29.2 g/100 g, while the fat content was betwe...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: Musaiger AO,D'Souza R

    更新日期:2008-03-01 00:00:00

  • [Development of an intermediate moisture product for the elderly based on texturized soybeans].

    abstract::In accordance with the fact the aging process is closely related to the individual nutrition, it is possible to infer that the daily diet could help and improve, to a certain degree, to the elderly well-being. Based on this and making use of the food technology expertise, the development of a low cost, easily prepared...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: Morales de León JC,Cecin Salomón P,Crail Chávez ML

    更新日期:1995-12-01 00:00:00

  • [Past and present status in the design of infant formulas].

    abstract::This paper describes briefly the history of infant foods, from the alternate ways of feeding developed during the late 19th century to the present-day infant formulas, and enumerates the different available types (milk-based, soy-based, hypoallergenic, lactose-free, etc,). Among the nutritional aspects the main charac...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章,评审

    doi:

    authors: Ronayne de Ferrer PA

    更新日期:1995-12-01 00:00:00

  • [Lactose tolerance and milk consumption: myths and realities].

    abstract::The disaccharide lactose, the principal carbohydrate of animal milks, requires the enzyme lactase to split it to glucose and galactose. Undigested lactose passes to the colon where fermentation produces hydrogen and short-chain fatty acids that can cause abdominal distention, pain and sometimes diarrhea. Persistence o...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章,评审

    doi:

    authors: Scrimshaw NS,Murray E

    更新日期:1988-09-01 00:00:00

  • [Soluble transferrin receptor-like indicator of iron nutritional status in Venezuelan preschoolers].

    abstract::Soluble transferrin receptor (sTfR) is an effective tool for iron deficiency (ID) diagnosis, and unlike serum ferritin (SF) and others indicators, is not affected by acute phase response during inflammatory processes. In order to diagnose ID using sTfR as iron status indicator and to estimate its utility, a cross sect...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: Adela Barón M,del Real S,Solano L,Sánchez Jaeger A

    更新日期:2005-09-01 00:00:00

  • [Evaluation of nutritional potential of fish in diets based on beans (Phaseolus vulgaris) and a cereal/corn (Zea mays) and/or rice (Oryza sativa)].

    abstract::p6e complementation between corn and fish, and rice and fish was evaluated for the purpose of establishing the required levels of each constituent in the mixture to obtain the optimum value in the biological evaluations for each diet. The optimum fish levels were around 10 and 6% for the corn and rice diets, respectiv...

    journal_title:Archivos latinoamericanos de nutricion

    pub_type: 杂志文章

    doi:

    authors: Merino G,Lareo L,Bressani R

    更新日期:1983-09-01 00:00:00

  • [Characteristic, composition, and cheese-making behavior of goat's milk].

    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:

    authors: Verdalet-Guzmán I

    更新日期:1992-06-01 00:00:00