9 documents found, page 1 of 1

Cognitive stimulation in older adults: an innovative good practice supporting s...

The project Cognitive Stimulation in Older Adults: Intervention on Cognitive Frailty and Promotion of Self-Care (in brief the ECOG project) arises in a context of worldwide demographic aging, and is fostered by the need to provide a sustainable solution to the progressive increase in the prevalence of age-related cognitive impairment. The main goal of the ECOG project is to promote active citizenship in old age...

Teoria social da austeridade: para uma crítica do processo de precarização

O objetivo central deste artigo é desenvolver uma interpretação e uma compreensão do fenómeno político-social da austeridade nas suas relações com a instauração de um regime social de existência precária que se abateu, a partir de 2008, sobre Portugal e alguns países da Europa. Deste propósito resultam outros dois objetivos parcelares: por um lado, pretende-se caracterizar este processo como um regime social da...

A response surface methodology study on the role of factors affecting growth an...

The present study was aimed at determining the effect of glucose, ethanol and sulphur dioxide on the growth and volatile phenol production by Brettanomyces bruxellensis in red wines using a response surface methodology approach. Sulphur dioxide proved to have a significant (p < 0.05) negative linear and quadratic effect on growth and 4-ethylphenol production. Concentrations of sulphur dioxide higher than 20 mg ...

Changes in sour rotten grape berry microbiota during ripening and wine fermenta...

This study investigated the microbiota of sour rotten wine grapes and its impact on wine fermentations. Yeasts, lactic acid bacteria (LAB) and acetic acid bacteria (AAB) were enumerated and identified on sound and sour rot grapes during the ripening stage. The alteration of the ecological balance induced by sour rot was particularly evidenced by the unequivocal increase of yeast and AAB counts on rotten grapes,...

The microbial ecology of wine grapes

Grapes have a complex microbial ecology including filamentous fungi, yeasts and bacteria with different physiological characteristics and effects upon wine production. Some species are only found in grapes, such as parasitic fungi and environmental bacteria, while others have the ability to survive and grow in wines, constituting the wine microbial consortium. This consortium covers yeast species, lactic acid b...

Criação e implementação de um sistema de monitorização no Litoral abrangido pel...

O presente relatório de progresso descreve o trabalho desenvolvido pelas equipas da Fundação da Faculdade de Ciências da Universidade de Lisboa (FFCUL) e do Laboratório Nacional de Engenharia Civil (LNEC) durante o quinto semestre do projecto “Consultoria para a Criação e Implementação de um Sistema de Monitorização do Litoral Abrangido pela Área de Jurisdição da ARH do Tejo”. São descritas as acções levadas a ...

Undesirable fungal metabolites in grapes: emphasis on geosmin and ochratoxin A

Ascomycetous yeast species recovered from grapes damaged by honeydew and sour rot

Aims: To identify ascomycetous yeasts recovered from sound and damaged grapes by the presence of honeydew or sour rot. Methods and Results: In sound grapes, the mean yeast counts ranged from 3Æ20 ± 1Æ04 log CFU g)1 to 5Æ87 ± 0Æ64 log CFU g)1. In honeydew grapes, the mean counts ranged from 3Æ88 ± 0Æ80 log CFU g)1 to 6Æ64 ± 0Æ77 log CFU g)1. In sour rot grapes counts varied between 6Æ34 ± 1Æ03 and 7Æ68 ± 0Æ38 lo...

Characterisation of chromium nitride films produced by PVD techniques

Chromium nitride thin films have been deposited on stainless steel substrates by r.f. reactive magnetron sputtering. The influence of process parameters such as substrate bias and partial pressure of reactive gas have been investigated. The characterisation of the coatings was performed by X-ray diffraction (XRD), Raman Spectroscopy (RS) and nano-indentation experiments. These studies allow to analyse the influ...