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Analisi di macro e micro elementi in frutti dei generi ribes, rubus e vaccinium e in confetture da essi ottenute
No full textCampioni di frutta e confetture sono stati analizzati mediante ICPES per la determinazione di macro e micro elementi
Determinazione della frazione aromatica in frutti di mirto
No full textL'analisi della frazione volatile delle bacche di mirto è stata svolta mediante l'impiego le tecniche HS-SPME-GC e HS-SPME-GCMS ed ha permesso di dosare una trentina di composti volatili
Sostanze di natura polifenolica e minerali in frutti del genere Prunus e loro prodotti di trasformazione (Polyphenolic substances and minerals in Prunus genus fruits and products of their processing).
No full textCherry from Prunus cerasus is widely used for its well known properties. The most important Italian area for cherry prodn. is the country around Vignola (Modena). The very short period of harvesting and the difficult preservation, require that a large amt. of fresh fruits is transformed in preserves and jams. We detd. the content of polyphenolic compds. in fresh cherries, cherry jams, and some com. jams to show the presence of compds. with high pharmacol. activity and potential beneficial effects on health. Micromineral (Zn, Fe, Mn) and macromineral (Ca, Mg, P, Na, K) nutrients were also detd. The polyphenol content in cherries was sufficiently high and the processing to jams did not cause many changes. The anthocyanidins were practically absent in com. jams. The cherries contained sufficient amts. of Ca and P, high levels of K, and low levels of Na
Fruit of ribes, rubus, vaccinium and prunus genus, metals content and genome
No full textThe metal content of fruits of genus rubus, ribes, vaccinium and prunus has been determined by indictively coupled plasma emission spectrometr
Fruits of ribes, rubus, vaccinium and prunus genus. Metal contents and genome
No full textThe production of fruits of genus Ribes, Rubus, Vaccinium and Prunus is particularly important in mountain communities. The contents of macro- and microelements in fruits from different cultivars of blueberry (Vaccinium corimbosus L.), red currant (Ribes rubrum L.), raspberry (Rubus idaeus L.) and cherry (Prunus avium L.) were determined. The anthocyanin and total polyphenol contents of the fruits were also determined. The results were analyzed with statistical methods. By using the one-way analysis of variance (ANOVA) the various genera of the fruits were found to be differentiable on the basis of their metal contents. Multivariate statistical analysis, performed using principal component analysis (PCA), confirms that the different fruits can also be well discriminated by their contents of metals, total anthocyanins, and polyphenols
Distribution of metals and phenolic compounds as a criterion to evaluate variety of berries and related jams
No full textPolyphenols, anthocyanins, phosphate, iron, zinc, manganese, calcium, potassium, magnesium and sodium were evaluated both in berries belonging to the genera Rubus and Ribes and in related jams by means of spectrophotometric techniques, to verify a possible differentiation on the basis of these parameters. The phenolic and anthocyanins higher contents were detected for black currant fruits and jams. Regarding the total phenolic content, in 11 cases it is possible to observe a higher content in jams with respect to the related row fruits. All samples contain a high amount of potassium, calcium and magnesium but small quantities of sodium. Phosphate is abundant especially in currants. As regard jams all results about metals are lower than those obtained for fruits, this is due to the dilution during the preparation of the jams. Multivariate statistical analysis shows that on the basis of obtained analytical results it is possible differentiate not only fruit but also the derived jams. (c) 2005 Elsevier Ltd. All rights reserved
Preparation and physicochemical properties of uracil derivatives with potential biological activity
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Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
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