1,721,020 research outputs found
Analytical and sensory evaluation of two strawberries cultivars to improve market acceptability
No full textTwo strawberry cultivars (Fragaria × ananassa Duch.), ‘Miss’ and selection ‘94.568.2’ (‘Queen Elisa’), grown in two areas of North Italy, were investigated in 2002 and 2003. Objective physicochemical qualities of fruit, their storability and their sen-sory qualities were used to demonstrate the differences between the two cultivars and to improve their market acceptability. Since previous sensory evaluation in strawber-ries has shown that consumer preference is influenced mainly by sensory attributes including aroma, a second aim of this investigation was to characterize the volatile composition of the fruits of these two cultivars using GC-MS, GC-FID and GC-olfactometry (GCO) techniques. Objective and sensory results showed that ‘Queen Elisa’ had better characteristics (sweetness, acidity and firmness). Total content of aroma compounds analysed by GC-FID was higher for ‘Miss’. The GCO assays indi-cated that ‘Queen Elisa’ had a better odour profile than ‘Miss’. The latter cultivar showed a high sensory perceptibility of methyl butanoate, and of a compound not identified, associated with unpleasant odours (seasoned cheese and sulphurated smell)
Aspetti nutraceutici delle fragole : indagini sul contenuto in acido ascorbico
No full textTwenty fruit samples of 36 cvs and 16 selections grown at Cesena, Boves and Verona from 1994 to 2001 were assayed for the ascorbic acid content. Results showed a wide range of ascorbic acid content, from 20 to 100 mg/100 g f.w., according to the cultivars. Factors such as growing location, year of production and short term storage were also studied, showing large effects on ascorbic acid content
Evaluation of postharvest quality of strawberries in Italy
No full textA national project to evaluate the quality of strawberry cultivars has been running in Italy for ten years. The aim of the program is to recommend cultivars suited to different growing areas. National and foreign cultivars have been assessed for at least two years for postharvest quality, including a short storage time to simu-late conditions during export. A score of 0 to 1 (0=poor, 0.5=average, and 1=good) was assigned to each quality parameter. In the Cesena area, the cultivars ‘Alba’, ‘Kore’, ‘Cifrance’, ‘Marjolaine’, ‘Queen Elisa’, ‘Idea’ and ‘Nadina’ had the highest scores, while in the Verona area the best were ‘Thethis’, ‘Darselect’, ‘Marmolada®Onebor’ and ‘Miss’. Additionally at harvest time, a sensory test was performed on some cultivars from both areas for sweetness, acidity, aroma and firmness. In the Cesena area, ‘Dora’ was judged sweet, firm and aromatic, followed by ‘Queen Elisa’. In Verona, ‘Darselect’ had the highest aroma leve
Recupero della vecchia cv di melo Renetta ruggine di Torriana : caratterizzazione e problemi di conservabilità
No full textTrials were carried out on the old apple cv Renetta ruggine di Torriana, evaluating fruit quality and keeping quality. The storage was performed at 2 deg C both in air and in CA (1.5% O2 and 1% CO2) up to 4/6 months. The results showed a high level of internal browning, with no relation with harvesting time. In order to verify if damages were due to low temperature, new storage trials were performed at 0, 2, 4, 6 deg C in air or at 4 deg C in CA. The results showed less internal browning at temperature higher than 4 deg C
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Applicazioni di test sensoriali nella valutazione della qualità organolettica delle fragole
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