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Registros recuperados: 9
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Antibacterial activity of polyvinyl alcohol (PVA)/ε-polylysine packaging films and the effect on longan fruit Ciênc. Tecnol. Aliment.
LI,Yana; WANG,Yuwen; LI,Juying.
Abstract Biodegradable and antimicrobial films via combing ε-polylysine (ε-PL) and polyvinyl alcohol (PVA) is a promising material for food packaging. We prepared the ε-PL/ PVA films with the ε-PL content of 0%, 1%, 3%, 5% and 7% (wt., relative to PVA) by casting method and their physical and chemical properties were characterized. SEM indicated the surface of ε-PL/PVA films was smooth with well compatibility between ε-PL and PVA at the ε-PL addition content of 1%. The tensile strength and barrier properties for water vapor and oxygen of the ε-PL/PVA films initially elevated and then decreased when ε-PL content exceeded 1%. The ε-PL doped endows antibacterial activity of PVA and the antibacterial property of ε-PL/PVA films was increasing with increase of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Polyvinyl alcohol; Ε-polylysine; Antimicrobial films; Food packaging; Longan.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005207
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Application of silver nanoparticles in food packages: a review Ciênc. Tecnol. Aliment.
SIMBINE,Emelda Orlando; RODRIGUES,Larissa da Cunha; LAPA-GUIMARÃES,Judite; KAMIMURA,Eliana Setsuko; CORASSIN,Carlos Humberto; OLIVEIRA,Carlos Augusto Fernandes de.
Abstract Silver nanoparticles (AgNPs) are antimicrobial agents that have a wide spectrum of action, including against pathogenic bacteria and spoilage fungi. However, their mechanism of action is not completely clarified. Nowadays, scientific interest on biological synthesis of AgNPs is growing, with emphasis in their extracellular biosynthesis by microbial cells, as it is the most reliable and ecologically correct method for production, yielding no toxic residues. AgNPs may be incorporated to biodegradable and non-biodegradable polymers for the production of food packages with antimicrobial properties, leading to greater safety and longer shelf life. However, it is important to carry out migration tests for new food packages incorporated with AgNPs, based...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Silver nanoparticles; Antimicrobial activity; Food packaging; Polymers.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000400793
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Effect of an edible crosslinked coating and two types of packaging on antioxidant capacity of castilla blackberries Ciênc. Tecnol. Aliment.
Sánchez,Leidy Carolina Ayala; Real,Claudia Patricia Valenzuela; Perez,Yanneth Bohórquez.
In order to increase the shelf life and maintain the quality and stability of the biological compounds with antioxidant activity present in Castilla blackberry fruits, a sodium alginate-based edible crosslinked coating was applied, and the fruits were packed in two different plastic containers and stored under refrigeration (3 ± 1 °C). Total antioxidant capacity and its relationship to physicochemical variables such as pH, Brix, and acidity were evaluated in six treatments: uncoated blackberry stored in a macroperforated container (T1) and thermosealed container (T2), without crosslinked coating in a macroperforated container (T3) and thermosealed container (T4), with crosslinked coating (calcium ions) packed in macroperforated container (T5) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fruit preservation; Food packaging; Functional compounds.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612014000200009
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Effect of incorporation of nutraceutical capsule waste of safflower oil in the mechanical characteristics of corn starch films Ciênc. Tecnol. Aliment.
CAMPO,Camila de; COSTA,Tania Maria Haas; RIOS,Alessandro de Oliveira; FLÔRES,Simone Hickmann.
Abstract Biodegradable films blends made of safflower oil nutraceutical capsules waste corn starch (20:4, 30:4, 40:4 and 50:4) were prepared. The objective of this study was to evaluate the influence of addition of different concentrations of safflower oil nutraceutical capsule waste in the mechanical properties (tensile strength, elongation at break, Young’s modulus) and thickness of corn starch films. A decrease in tensile strength and Young’s modulus and an increase in elongation at break were observed with the increase in the content of the nutraceutical capsule waste. The results showed that the blends of safflower oil capsules waste-corn starch films demonstrated promising characteristics to form biodegradable films with different mechanical...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Food packaging; Biodegradable films; Gelatin; Blends.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612016000500033
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ICP OES Determination of Contaminant Elements Leached from Food Packaging Films BABT
Santos,Éder José dos; Oliveira,Fernanda Mara Pimentel; Herrmann,Amanda Beatriz; Sturgeon,Ralph Edward.
ABSTRACT Determination of potential contaminants elements in food packing films arising from contact with acidic aqueous foods was undertaken by inductively coupled plasma optical emission spectrometry (ICP OES) in accordance with DIN EN 1186-1. Test sections from plastic films were totally immersed in 3% w/v CH3COOH used as the food simulant. Testing was conducted under three conditions: (1) 10 days at 40 ºC; (2) 30 min at 70 ºC and 10 days at 40 ºC; and (3) 30 min at 100 ºC and 10 days at 40 ºC. These time and temperature conditions were considered to be the most severe situations likely to be encountered in practice. Several different containers were investigated, including a borosilicate glass beaker, a glass bottle used for food canning, as well as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Food packaging; ICP OES; Contaminant elements.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100424
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Impact of whey protein isolate coatings containing different antimicrobial agents on sliced bologna-type sausage during refrigerated storage Ciênc. Tecnol. Aliment.
KALKAN,Selin; ERGİNKAYA,Zerrin.
Abstract In this study, we aimed to determine the possibility of using the edible whey protein isolates coatings containing different antimicrobial agents on the bologna-type sausage slices and the inactivation effects of these coatings against Listeria innocua. For this purpose, edible whey protein isolates (WPI) coatings were prepared to contain essential oils (thyme, coriander, pimento, rosemary, basil), potassium sorbate (PS), sodium benzoate (SB)(4% w/v) and Nisin(10.000 IU). The antimicrobial effect against L. innocua, sensory characteristics (appearance, color, odor, texture, flavor and overall acceptability) and physical (color) and chemical (pH and water activity) properties of bologna slices coated WPI coatings were determined for during the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Edible coatings; Antimicrobial; Listeria innocua; Whey protein isolate; Food packaging.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019005024102
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Influence of Ionizing Radiation on Biodegradable Foam Trays for Food Packaging Obtained from Irradiated Cassava Starch BABT
Brant,Antônio Jedson Caldeira; Naime,Natália; Lugão,Ademar Benévolo; Ponce,Patrícia.
ABSTRACT Biodegradable polymers, such as starch, cellulose, and derivatives thereof, are being studied to produce innovative packaging in the most diverse shapes (films, bags, trays, bottles, etc.) to attend this current market trend. The aim of this work was to produce foam trays from cassava starch for food packaging via extrusion followed by thermoforming process. Their formulations were based on unirradiated and γ-irradiated starches at diverse radiation absorbed doses (in kGy) in order to evaluate the influence of the irradiated starches on the physical properties of the trays. Water absorption results showed an irregular increase with the increase of the absorbed dose ( for example, 26.32% and 39.84% for the trays based on unirradiated starch 0 kGy...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodegradable foam; Cassava starch; Food packaging; Ionizing radiation.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100604
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Tapioca starch films reinforced with microcrystalline cellulose for potential food packaging application Ciênc. Tecnol. Aliment.
OTHMAN,Siti Hajar; MAJID,Noorasyikin Abd; TAWAKKAL,Intan Syafinaz Mohammed Amin; BASHA,Roseliza Kadir; NORDIN,Norhazirah; SHAPI’I,Ruzanna Ahmad.
Abstract This work is directed towards developing biodegradable films from biopolymer that is sustainable and environmentally friendly particularly tapioca starch (TPS) films. However, the usage of TPS films for food packaging application has been limited due to the poor mechanical, barrier and thermal properties. Microcrystalline cellulose (MCC) at different concentrations (0 to 10 wt.%) was incorporated as the filler into the films to form TPS/MCC composite films via solvent casting method in order to improve the limited properties of the films. The TPS/MCC films were characterized in terms of physical, mechanical, barrier, and thermal properties. It was found that 3 wt.% MCC was the ideal concentration of filler that resulted to the highest performance...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Barrier property; Food packaging; Mechanical property; Microcrystalline cellulose; Tapioca starch; Thermal property.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000300605
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Water sorption and water permeability properties of edible film made from potato peel waste Ciênc. Tecnol. Aliment.
OTHMAN,Siti Hajar; EDWAL,Siti Amirah Mohammad; RISYON,Nazratul Putri; BASHA,Roseliza Kadir; A. TALIB,Rosnita.
Abstract The water sorption and permeability properties of edible film produced from potato peel waste was investigated under different levels of relative humidity (23, 33, 43, 57, 75% RH) and temperatures (5, 30, 50 °C). The water sorption behaviour and isotherms of the film were investigated by fitting water sorption data to the Peleg model and the Guggenheim, Anderson de Boer model (GAB model). The amount of moisture content, time required for the moisture content of the film to reach equilibrium, water sorption rate, and water sorption capacity increased when the relative humidity increased. The effect of temperature on moisture content, water sorption rate, water sorption capacity, and monolayer moisture content is complex and related to the water...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Edible film; Food packaging; Water permeability; Water sorption.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612017000500063
Registros recuperados: 9
Primeira ... 1 ... Última
 

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