Search results for "Aliment"

Effect of ferulic acid and α-tocopherol antioxidants on properties of sodium caseinate edible films

2011

Edible films, based on sodium caseinate containing three different concentrations of ferulic acid or alpha-tocopherol (20, 40 and 60 mg/g sodium caseinate), were obtained in order to evaluate the effect of these compounds on properties of the caseinate matrices. Special emphasis was placed on their effect on the films' oxygen barrier properties, which are decisive in the prevention of the oxidation of foods containing lipids. Films were characterized as to their tensile, optical and surface properties as well as their barrier properties to water vapor, oxygen and aroma compounds (n-hexanal and n-hexanol). Ferulic acid was more efficient at reducing oxygen and n-hexanal permeability than alp…

Ultrasonically-Assisted and Conventional Extraction from Erodium Glaucophyllum Roots Using Ethanol:Water Mixtures: Phenolic Characterization, Antioxi…

2020

The paper presents experimental results concerning the ultrasonically-assisted extraction of bioactive compounds from Erodium glaucophyllum roots. A comparison with conventional methodology is presented, and thereby the phytochemical composition and the antioxidant and anti-inflammatory activities of extracts are evaluated. The phenolic profile of Erodium extracts was analyzed by TOF&ndash

Antioxidant activity and fatty acids quantification in Sicilian purslane germplasm

2019

Portulaca oleracea is an annual succulent herb in the family Portulacaceae. It is a nutritious vegetable with high antioxidant properties and, it is among the richest plant source of ω-3 fatty acids, as well as a rich source of ω-6 fatty acids, ascorbic acid, tocopherols and beta-carotene. In the present study, three purslane populations under different Mediterranean environmental conditions for two years, for future valorization as novel food sources of omega-3 fatty acids, were evaluated. In particular, biomorphological characteristics, total phenols and fatty acids content were determined. The antioxidant activities were evaluated using 2,2-diphenyl-1-picrylhydrazyl assay. The population…

Omega-3 rich foods: Durum wheat spaghetti fortified with Portulaca oleracea

2020

Abstract Portulaca oleracea is an annual succulent herb (purslane) with high antioxidant properties and high content of essential ω-3 and ω-6 fatty acids, ascorbic acid, α-tocopherol and β-carotene. In the present study, sensorial and chemical analyses of uncooked and cooked durum wheat pasta fortified with purslane from three different Sicilian areas and at three different concentrations (5, 10 and 15%) were estimated. The sensorial analysis showed that the scores of the overall acceptance decreased considerably in pasta with 15% purslane, while consumers appreciated pasta samples with 10% purslane. Chemical analysis highlighted that the addition of purslane gave pasta samples the potentia…

Evaluation of the antioxidant/antimicrobial performance of Posidonia oceanica in comparison with three commercial natural extracts and as a treatment…

2017

Abstract This research aimed at extending the choice of natural antimicrobials/antioxidants for food applications. Four plant extracts, Posidonia oceanica (PO), Green Tea (GT), Grape seeds (GS) and Grape skin (GK), were analyzed to determine their total phenolic content, antioxidant activity and in vitro antimicrobial performance. PO extract showed the highest total phenolic content (711 mg gallic acid/g extract) and antifungal activity against Aspergillus niger and Penicillium chrysogenum . The highest antioxidant (3.81 mg/L EC 50 ) and antibacterial activities (bactericidal against Gram positives and bacteriostatic against Gram negatives) were found for GT extract. The best performing ext…

L'antropologia dell'alimentazione. Cibi e pratiche culturali

2018

Una riflessione sulle tematiche legate alle scelte alimentari culturalmente orientate.

Evaluación antropométrica del estado nutricional y estimación de las ingestas de hierro y de vitamina C de mujeres posmenopáusicas y hombres mayores …

2001

Carmen.Vidal@uv.es Objetivo: Evaluación del estado nutricional de mujeres posmenopáusicas y hombres mayores de 45 años, mediante medidas antropométricas, y estimación de las fuentes e ingestas dietéticas de hierro y de vitamina C. Material y métodos: Participan en el estudio 125 hombres y 176 mujeres de 40 a 93 años procedentes de dos Centros de Salud y del Centro de Hemodonación de Cartagena (Murcia). Se realiza una valoración antropométrica y una encuesta alimentaria de frecuencia de consumo de alimentos durante el último mes. Los contenidos de hierro y de vitamina C se obtienen de las tablas de composición de alimentos españoles. Para evaluar la dieta con respecto al hierro y la vitamina…

Análisis industrial (2009/10)

2009

Apparato digerente

2019

Trattato a uso didattico su Alimentazione Nutrizione e Salute

Revista electrónica de investigación y evaluación educativa

2015

Producción Científica