Materias
(58)
texto impreso
Increasing consumer demand for microbiologically safer foods, greater convenience, smaller packages, and longer product shelf life is forcing the industry to develop new food-processing, cooking, handling, and packaging strategies. Nonfluid read[...]texto impreso
ROLF D. JOERGER, AutorAtremendous effort has been made over the last decade to develop and test films with antimicrobial properties to improve food safety and shelf life. This review catalogues and analyses the outcome of these research efforts. The bacteriocin nis[...]documento electrónico
SILVERA, CARLOS, Autor ; ESCOBAR, DANIELA, Autor ; REPISO, LUIS, Autor ; MÁRQUEZ, ROSA, Autor | México [MÉXICO] : AM Editores | 2013Se estudian los conceptos asociados con la elaboración y usos industriales de las películas flexibles comestibles, incluyendo las cubiertas que actúen en forma positiva sobre la vida útil y la calidad del alimento en términos generales .Se consi[...]texto impreso
Yam starch films were obtained by casting. Effect of different film thicknesses (0.07, 0.09, 0.11 mm) and concentrations of glycerol (1.30, 1.65 and 2.00% w/w) and starch (3.30, 3.65 and 4.00% w/w) were evaluated. Barriers, mechanical and optica[...]texto impreso
Studies were carried out to produce biodegradable films from cassava starch. Two alternatives were investigated. In the first, films were obtained by starch gelatinization followed by thermopressing and glycerol was used at different concentrati[...]texto impreso
The viscoelastic properties of edible films can provide information at the structural level of the biopolymers used. The objective of this work was to test three simple models of linear viscoelastic theory (Maxwell, Generalized Maxwell with two [...]texto impreso
Chitosan (CH) and methylcellulose (MC) are hydrocolloids with good film-forming properties. The objectives of the present work were to characterize: (i) rheological and surface tension properties of the filmogenic suspensions and (ii) water solu[...]texto impreso
Recently, it was observed that the myofibrillar as well as the sarcoplasmatic proteins obtained from fish are capable to form films. The objectives of this work was to elaborate and to characterize the water vapor permeability (WVP), the color a[...]documento electrónico
ESCOBAR, DANIELA, Autor ; MÁRQUEZ, ROSA, Autor ; REPISO, LUIS, Autor ; SALA, ANGELINA, Autor ; SILVERA, CARLOS, Autor ; HARISPE, RODRIGO, Autor | Montevideo [URUGUAY] : Laboratorio Tecnológico del Uruguay (LATU) | 2010El objetivo es elaborar films comestibles en base a aislado de suero proteico.documento electrónico
ESCOBAR, DANIELA ; MÁRQUEZ, ROSA ; REPISO, LUIS ; SALA, ANGELINA ; SILVERA, CARLOS | Montevideo [URUGUAY] : Laboratorio Tecnológico del Uruguay (LATU) | 2007Dentro del estudio de los films comestibles, es importante la influencia de los plastificantes en la matriz base de los mismos. Cuando estos son agregados en otros materiales, sufren cambios en las propiedades físicas y mecánicas del material. [...]Article : documento electrónico
ROMINA BERINO, Autor ; DIEGO ARMANDO PEZZELATTO, Autor ; GERMÁN DAVID BÁEZ, Autor ; EMILCE ELINA LLOPART, Autor ; GRISELDA BALLERINI, Autor ; ANDREA MORO, Autor ; NÉSTOR JORGE DELORENZI, Autor ; PABLO ANDRÉS BUSTI, Autor |Se optimizaron las condiciones para la preparación de películas biopoliméricas capaces de encapsular los valores diarios máximos recomendados de la vitamina liposoluble E (?-tc), incorporando nanocomplejos formados por la proteína láctea beta la[...]texto impreso
The materials most used for food packaging are the petrochemical-based polymers, due to their availability in large quantities at low cost and favourable functionality characteristics, such as, good tensile and tear strength, good barrier prope[...]documento electrónico
M. ROSARIO PALOMO MARIN, Autor ; EDUARDO PINILLA GIL, Autor ; LORENZO CALVO BLAZQUEZ, AutorCd and Pb determination in ambient aerosol samples based on SWASV at a Bi film glassy carbon electrode is described. Extremely acid solutions resulting from sample digestion were directly assayed, with sufficient detection limits for testing the[...]texto impreso
The aim of the present paper was to study the filmogenic capacity of Amaranth flour. The films were obtained in a casting process using glycerol as plasticizer. The influence of the glycerol content, pH, temperature of heating process and drying[...]texto impreso
The effects of drying temperature, drying relative humidity and film thickness on the drying characteristics, water vapor permeability, and tensile properties of glycerol (Gly)-plasticized whey protein isolate (WPI) films were investigated. 50% [...]texto impreso
ZARITSKY, N., AutorEdible coatings can extend the shelf-life of foods by functioning as solute, gas, and water vapor barriers. Moreover, they can be used as a host for additives in the conservation of the properties of the product or simply in order to improve its[...]texto impreso
The aqueous extract of two ecotypes of murta (Ugni molinae Turcz) leaves (Soloyo Grande ‘‘SG’’ and Soloyo Chico ‘‘SC’’), were analysed for their antioxidant capacity, SC extract exhibiting a higher antioxidant capacity than SG extract. This diff[...]texto impreso
Antimicrobial films appear in response of the searching for more competitive and aggregated value packaging. With the aim of developing packages that, besides active are also biodegradable, this work proposes to study the effect of antimicrobial[...]texto impreso
Proteins from fish muscle are biopolymers capable of forming edible films. Thus, the objective of this paper was the study of some physical properties of films produced with the sarcoplasmic and myofibrillar proteins (MP) from Thai Tilapia muscl[...]texto impreso
Moisture sorption isotherms and water barrier properties of films made from hydroxypropyl methylcellulose (HPMC) containing surfactant mixtures of sorbitan monostearate (SPAN 60) and sucrose palmitate (sucrose ester P-1570) were evaluated at 10 [...]texto impreso
Myofibrillar and sarcoplasmic proteins are capable of forming a continuous matrix. Therefore,muscle proteins of two varieties of Tilapia were used to study the effect of the thermal treatment of filmogenic solutions (FS) on the mechanical proper[...]texto impreso
Biofilms are made of biopolymers. In the casting technique, biofilms are obtained by the drying of a polymer suspension in the final stage of processing. The aim of the present paper was to analyze the effect of this drying process on the mechan[...]texto impreso
The objective of this paper was to study the effect of plasticizers and their concentrations on the thermal and functional properties of gelatin-based films. Four polyols (glycerol—GLY, propylene glycol—PPG, di- DTG and ethylene glycol—ETG) were[...]Article : documento electrónico
ESCOBAR, DANIELA, Autor ; MÁRQUEZ, ROSA, Autor ; SILVERA, CARLOS, Autor ; SALA, ANGELINA, Autor ; REPISO, LUIS, Autor |Dentro INNOTEC (No. 3, dic. 2008)El incremento del interés en alimentos de alta calidad con mayor vida útil y un menor impacto a nivel ambiental ha llevado al estudio y desarrollo de películas y coberturas comestibles y/o biodegradables. Éstas son una excelente alternativa de e[...]texto impreso
En los últimos años se ha investigado intensamente en el campo de los films y recubrimientos comestibles y los esfuerzos continúan debido a la creciente demanda por parte de los consumidores respecto de alimentos de calidad, saludables y seguros[...]