Search results for "ALIMENTARI"

Results of industrial breadmaking trials of durum wheat wholegrain flour enriched with citrus fruits fibre

2016

Microbiological and chemical monitoring of Marsala base wine obtained by spontaneous fermentation during large-scale production

2014

The present work was undertaken to evaluate the effect of natural wine making on the microbial and chemical composition of Marsala base wine. To this purpose, a large-scale vinification process of Grillo grape cultivar was monitored from the grape harvest to the final product. Total yeasts (TY) showed a rapid increase after must pressings and reached values that were almost identical to those registered during conventional wine makings. Lactic acid bacteria (LAB) were registered at the highest levels simultaneous to those of yeast growth at the beginning of the process. Saccharomyces cerevisiae was the species found at the highest concentrations in all samples analysed. Several strains (n =…

The Impact of COVID-19 in the Italian Wine and Olive Oil Sector

2022

Coronavirus has produced worldwide many negative effects on the food economy, but wine industry is one of the main sector affected by the crisis especially due to the lock down involving restaurants and other retail distributions. 2019 ended in an extremely encouraging way for the Italian wine industry and especially for the sparkling wine sector, with an increase in foreign demand growing by almost 15%, This increase was largely due to the success of sales in Anglo-Saxon nations, such as the United States and less so in the United Kingdom due to Brexit, not to underestimate even exports to Japan, Russia and China.

Characterisation of Vernaccia Nera (Vitis vinifera L.) Grapes and Wine

2017

Vernaccia Nera (VN) is a minor Italian red grape cultivar whose oenological properties have not been investigated yet. Traditional winemaking procedures with VN can include grape drying and even triple sequential fermentations, but a rational vinification approach should be based on the grape composition. Since a comprehensive characterisation of the VN grape is still missing, the ripening of VN grapes was monitored by evaluating flavour compounds, proanthocyanidins and anthocyanins. The grapes were used to produce red wine whose chemical composition and sensory properties were assessed. Ripe VN grapes contained high amounts of extractable anthocyanins (0.88 g/kg). The most abundant anthocy…

Wine-making with protection of must against oxidation in a warm, semi-arid terroir

2016

In order to defend varietal aromas from oxidation before alcoholic fermentation, two musts were prepared from white grapes pre-cooled and added with ascorbic acid and solid CO2 (trial ACO2) or SO2 (trial BSO2). Experiments were performed with grapes of a white grape variety indigenous to western Sicily, the wines from which, obtained by vinification of musts protected from oxidation and poor in copper, as previously proven, have aroma descriptors ascribed to passion fruit and grapefruit skin. The smaller content in flavanols in the ACO2 trial, demonstrated that the use of solid CO2, instead of SO2, reduced the extraction of such polyphenols from grape solids. The higher content in hydroxyci…

Analysis of the filtration efficiency of white wines using different filter aids

2010

The global wine market, having recently entered into full crisis, is suffering some changes in its production and marketing. The reasons for these changes are mainly due to new trends in consumer demand for wine safety and quality standards at low cost. Social cellars, in order to be included in this new trend, should focus on the rationalization of the production techniques to reduce the costs and improve the quality of wine. In the case of winemaking for the production of a wine stored in a bag-in-box, filtration is a very important technique because it gives the finished product clearness and stability. The experimentation was based on the application of a low cost filtration technique o…

Effect of a physical pre-treatment and drying on carotenoids of goji berries ( Lycium barbarum L.)

2018

In order to evaluate the influence of an abrasive pre-treatment and drying at 50 °C, 60 °C, 70 °C of goji fruits (Lycium barbarum L.), changes in colour and carotenoids were studied. An extraction method was modified and adapted to assay the main carotenoid esters and saponified carotenoids of goji berries, before and after treatments. Goji berries were confirmed as a high source of zeaxanthin, with zeaxanthin-dipalmitate at about 2 g/kg dry weight. The reliability of the analytical method was confirmed by the high quantitative recoveries, about 100%, a higher repeatability than reference methods and a good reproducibility (lower than 5%). After drying, significant but small carotenoid loss…

Reason for treatment abandonment from the perspective of the patient with an eating disorder

2016

Los tratamientos psicológicos y farmacológicos para los trastornos de la conducta alimentaria comportan costes personales y sanitarios. En este trabajo estudiamos los diferentes motivos que pueden estar asociados al abandono en ambos tipos de tratamientos en pacientes diagnosticados con un trastorno de la conducta alimentaria, así como el tipo de abandono: abandono tras evaluar, abandono precoz y tardío. Por otro lado, analizamos si existe alguna relación entre el diagnóstico y el tipo de abandono. Se examinaron diversas características (edad, sexo, diagnóstico, motivos y tipos de abandono, y satisfacción respecto a la unidad de trastornos de la conducta alimentaria) en 212 pacientes atendi…

Tecnica dell’acidificazione dei vini per diminuire il pH o incrementare l’acidità totale

2009

Evaluación del riesgo de exposición alimentaria a acrilamida en España

2015

La acrilamida es actualmente un motivo de preocupación de seguridad alimentaria. Se trata de un monómero con efectos neurotóxicos, cancerígenos y genotóxicos en modelos animales y con toxicidad sobre la reproducción masculina y en el desarrollo fetal. El cáncer es la segunda causa de muerte más común en Europa. La comprensión de los factores de riesgo es fundamental para establecer estrategias de prevención. La investigación sobre acrilamida es un tema de máximo interés para la comunidad científica y las autoridades. Existen tres fuentes de exposición a acrilamida: ocupacional, tabaco y dieta. Se forma en alimentos de consumo cotidiano que presentan un alto contenido en almidón y se cocinan…