Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2017-08-04T13:44:35Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) TESE-TELMA GUEDES - VERSÃO FINAL.pdf: 8533836 bytes, checksum: 018e5fae33e20802ff11509c748464a2 (MD5) / Made available in DSpace on 2017-08-04T13:44:35Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) TESE-TELMA GUEDES - VERSÃO FINAL.pdf: 8533836 bytes, checksum: 018e5fae33e20802ff11509c748464a2 (MD5) Previous issue date: 2016-08-11 / CAPES / O Vale do São Francisco esta localizado em uma região entre os estados de Pernambuco e Bahia. Responsável por 99% da uva de mesa exportada e pela produção de cerca de 6 milhões de litros de vinhos finos por ano. No processo de vinificação, os compostos fenólicos são extraídos da uva e o álcool produzido na fermentação ajuda neste processo. Os bagaços da uva gerados são descartados e devido o teor de fenólicos contido nos resíduos o presente trabalho teve como objetivo propor o desenvolvimento de uma tinta ambientalmente amigável e eficiente que poderá ser utilizada como anti-incrustantes em estruturas parciais ou totalmente submersas no mar. Para a caracterização química dos resíduos de duas variedades de uva (Vittis sp.) foram utilizadas técnicas cromatográficas e espectrométricas para identificação estrutural dos constituintes. O teor de fenólicos encontrados nos bagaços da uva Moscato foram de 423,81 ± 1,72 mg EAG/g de extrato, 104,49 ± 2,90 mgEAG/g de extrato para a semente e casca, respectivamente e de 133,92 ± 1,99 mgEAG/g de extrato de bagaço da Shiraz. Nos testes qualitativos de teor de flavonoides, taninos condensados, galotaninos e antocianinas, os taninos foram encontrados em maiores concentrações nos extratos da casca Moscato acetona 70%, semente Moscato etanol e extrato do bagaço Shiraz etanol 80%. Nos extratos do cultivar Shiraz foram identificadas, por MALDI-TOF e UPLC-DAD-qTOF-MS, 54 antocianinas e foram isolados os principais constituintes: 2 flavonoides glicosilados (isoquercetina e isoramnetina-3-O-β-D-glicosídeo) e 4 antocianinas em mistura (malvidina-3-O-glicosídeo, peonidina-3-O-glicosídeo, malvidina-3-O-(6-O-pcumaroil)-glicosídeo e peonidina-3-O-(6-O-p-cumaroil)-glicosídeo). Da semente da uva Moscato foram identificadas 24 proantocianidinas com grau de polimerização variando de 1-6 unidades de (epi)catequina e (epi)galocatequina. Na casca da uva Moscato foram identificadas 6 proantocianidinas dentre elas dois trímeros de (epi)afzelequina, 4 oligômeros de (epi)catequina e (epi)afzelequina. Nos testes de toxicidade com Artemia salina os três extratos não apresentaram toxicidade e os complexos cobre-resíduos apresentaram alta toxicidade. Os testes de imersão com as placas contendo as tintas anti-incrustantes obtidas dos resíduos demonstram que apresentaram eficiência superior à tinta contendo complexo obtido de tanino comercial, durante o mesmo tempo de imersão. Os extratos da semente da uva Moscato e o bagaço da uva Shiraz apresentaram o melhor resultado no teste de imersão. Com base nos resultados obtidos, verificou-se que o pigmento do complexo resíduo-cobre, produzido à base dos extratos, é uma atraente alternativa para utilização em formulações anti-incrustantes. Além disso, representa o aproveitamento e agregação de valor aos resíduos vinícolas da Região do Vale do São Francisco. / Vale do São Francisco is located in a region between the states of Pernambuco and Bahia-BR. Responsible for 99% of the exported grapes and the production of about 6 million liters of fine wine per year. In the winemaking process, the phenolic compounds are extracted from the grape and the alcohol produced during fermentation help in this process. The grape marc generated are discarded and because the content of phenolic contained in the waste the present study aimed to the development of an environmentally friendly and efficient ink that can be used as anti-fouling in the partial structures or completely submerged in the sea. For chemical characterization of waste from the two varieties of grape (Vittis sp.) were performed chromatographic and spectrometric techniques to identify structural constituents. The phenolic content found in the Moscato grape marc were 423.81±1.72 mgGAE/g of extract, 104.49±2.90 mgEAG/g of extract for seed and peel, respectively, and 133.92±1.99 mgEAG/g of extract of the marc of Shiraz variety. In the qualitative analysis of flavonoid content, condensed tannins, gallotannins and anthocyanins, tannins were found in higher concentrations in the extracts of the skin Moscato acetone 70%, seed Moscato ethanol and waste extract Shiraz ethanol 80%. In the extracts of cultivar Shiraz were identified by MALDI-TOF and UPLC-DAD-qTOF-MS, 54 anthocyanins and isolated the mainly constituents: 2 glycosides flavonoids (Isoquercetin and isorhamnetin-3-O-β-D-glucoside) and 4 anthocyanins mixture (malvidin-3-O-glucoside, peonidin-3-O-glucoside, malvidin-3-O-(6-O-p-coumaroyl)glucoside and peonidin-3-O-(6-O-p-coumaroyl)-glucoside).Twenty four proanthocyanidins were identified in the seed of Moscato grape, with degree of polymerization ranging from 1-6 units of (epi)catechin and (epi)gallocatechin. In the peel of Moscato grape were identified 6 proanthocyanidins among them two trimers of (epi)afzelechin, 4 oligomers of (epi)catechin and (epi)afzelechin. In toxicity tests with Brine shrimp the three extracts showed low toxicity. On the other hand, the waste copper-complexes showed a high toxicity in the tests. The immersion tests with plates containing antifouling paints obtained from waste, demonstrate that the coatings containing the residue of grape-copper complex exhibited superior efficiency to the ink containing the complex obtained from commercial tannins. The extracts of the seed of Moscato grape and Shiraz grape marc showed the best result in the immersion test. Based on these results, it was found that the pigment-copper complex of the residue produced on the basis of the extracts are an attractive alternative for use in antifouling formulations, because these formulations have a lower copper concentration than conventional antifouling paints. In addition, it features the use and adding value to waste wineries in the Vale do São Francisco.

Thesis (MscAgric (Viticulture and Oenology))--Stellenbosch University, 2008. / The effect of various irrigation strategies on grapevine water relations during the berry ripening period was investigated in a Shiraz/Richter 99 vineyard. Comparisons between different irrigation strategies (full/seasonal, véraison+post véraison, post véraison and no irrigation) were made. During the day, the seasonally irrigated vines experienced less water stress than the deficit treatments. Non-irrigated vines seemed to maintain higher diurnal leaf water potentials. Lower leaf water potentials indicated lower water contents in the vegetative and reproductive tissue. Full irrigation seemed to stimulate primary shoot length. Longer water deficit induced earlier and more complete shoot maturation (reserve accumulation). Re-distribution of leaf area on the shoot may occur when vines are subjected to water deficit. Extended water deficit seemed to induce earlier and restricted water loss from vegetative tissue. The water relations were reflected in the berry size. Irrigation during ripening seemed to induce a continuation of berry water loss. Transpiration losses were apparently much higher in fully irrigated vines whereas stomatal control efficiently maintained water relations in non-irrigated vines. Water deficit seemed to have enhanced the soluble solid accumulation. Irrigation treatments did not seem to affect the titratable acid and pH. The post véraison irrigation in particular seemed to favour a wide window for harvesting. Irrigation at post véraison and especially véraison+post veraison seemed to have a greater effect on the synthesis and extraction of phenolics, anthocyanins and tannins in the berry skins. Different irrigation strategies may affect grapes in such a way that different wine styles are obtained.

Thesis (MScAgric (Viticulture and Oenology))--University of Stellenbosch, 2011. / Includes bibliography. / ABSTRACT: The grapevine must constantly find a balance between two continually changing environments, the rhizosphere (i.e. soil) and the troposphere (i.e. macroclimate). The adaptations are extremely complex because they encompass complicated and interrelated processes that are not yet fully understood. In terms of water-use behaviour, differences between cultivars have been described in the literature. In this study, the water status and stomatal conductance of four cultivars (Shiraz, Grenache, Pinot noir and Chardonnay) grafted onto R99 were studied. Diurnal cycles of water status and stomatal conductance, from 07:00 to 19:00, were followed for a single day at the end of the 2009 season. The results showed that, at the end of the season, Shiraz was subjected to water stress conditions, losing leaves and showing symptoms of berry shrivelling. The other three cultivars had a much better canopy status and no symptoms of berry shrivelling were observed. Based on the canopy observations and a comparison of the curves of stem water potential (Ψs) and stomatal conductance (gs), it seems that Pinot noir and Chardonnay are closer to the water-use behaviour of Grenache noir, which is known as a “pessimistic” cultivar, than to Shiraz, which is an “optimistic” cultivar. A study of four plots each of Chardonnay/101.14 Mgt and Shiraz/101.14 Mgt was carried out in eight commercial vineyards in the Robertson region in order to investigate the relationship between soil and root morphology, and the influence thereof on canopy development and berry growth. These plots had different soil types. Important soil properties are reported to limit root growth, individually or as a combination of restrictions. It was found that the size of the root system of 101.14 Mgt is defined by soil physical and chemical properties. The roots of 101.14 Mgt under irrigation can grow to a depth of 100 cm or beyond if the soil physical and chemical properties allow it. Because the soil properties define the root system and the water storage/drainage, they greatly influence the plant water status, even under irrigation. In an arid zone like Robertson, irrigation is an important management tool. The balance between canopy growth before véraison and the ability of the root-soil system to maintain that canopy size during the ripening process is crucial in an area with a high evaporative demand. In this regard, not all the soil properties-root system combinations showed satisfactory performance in maintaining the canopy functioning, which affected berry sugar loading and berry volume. In another study that is presented, forty soil profiles were characterised in the Robertson valley. The root systems were considered as a product of the soil properties, and thus the morphology of the root systems was used as a starting point to group soils together. The importance of soil depth has been described well, thus the root systems were first classified according to rooting depth – into shallow and deep root systems. The deep root systems were then subdivided, creating two subgroups of high root density and low root density. The two extreme groups (i.e. shallow roots, and deep roots with high root density) have particularly different soil properties. The soil characteristics found in these extremes are represented up to certain point by families of the South African soil taxonomy, mainly due to the restrictive function of the B horizon. This restrictive function is related to soil properties that are taken into consideration in the South African soil classification and that are important for grapevine root growth, as well as the thickness of the described horizons and the physical and chemical differences between the horizons. Soil properties have an important influence on root morphology. Due to the fundamental role played by the root system in the overall plant functioning, soil properties are of critical importance. In an arid area, the low water pressure in the atmosphere and the high temperature greatly affect the plant water status. The soil-root system combination plays an important role in the ability of the root system to supply the plant with water during times of high evaporative demand. Different cultivars will react differently due to differences in transpiration control. The maintenance of an adequate water status will have an immense influence on canopy development and maintenance, and on normal and steady berry ripening. In this study it was found that not all the soil-root combinations can fulfil this satisfactorily. Thus, the grapevine balance determined by the combination of the soil-root-canopy complex and the influence of management techniques is extremely important for the favouring of a good canopy:root system ratio, a functional canopy throughout the season and a steady berry ripening curve.

La production de copies littéraires connaît un important développement à Chirâz en Iran sous la dynastie des Turkmènes Aq Qoyyûnlû entre 1467 et 1503. Peut-on cerner des caractéristiques de cette production ? Se différencie-t-elle de celles d’autres centres contemporains, notamment Tabrîz et Hérât ? En examinant un corpus de soixante manuscrits datés, cette étude vise à analyser les différentes composantes du codex de Chirâz (papier, mise en page et réglure, écritures, reliure, …) ainsi que les décors (enluminures et illustrations) mis en œuvre afin d’en dégager les spécificités. Héritiers de la tradition de livres décorés timourides, des artisans du livre deviennent les experts de ce qu’il convient une production en série d’items finement calligraphiés, toujours enluminés et souvent ornés d’illustrations. La présente étude permet de montrer l’évolution d’une production de cour à une conception de copies par des ateliers privés, à un moment où la gestion du pouvoir passe d’un système princier à un gouvernorat de généraux turkmènes vers 1480. Cette période est alors marquée par des changements visuels importants, notamment l’usage d’un style particulier d’écriture nasta‘lîq, employé par les copistes de la ville, des formes d’enluminures stéréotypées, ainsi que l’emploi de styles de peintures qualifiés de « commerciaux ». Il en résulte une forte identité visuelle des manuscrits réalisés à Chirâz dans le dernier tiers du XVe siècle, qui sont largement exportés à travers le monde iranien. La pérennité sera assurée au cours du siècle suivant sous la dynastie safavide par les mêmes familles d’artisans, mais aussi sur une plus grande échelle, dans le domaine ottoman notamment. / The production of belletristic copies encountered an important development in the city of Shiraz in Iran between 1467 and 1503. Is it possible to determine characteristics of this production? Are differences visible with manuscripts made in other centres, such as Tabriz and Herat? By examining a corpus of sixty dated manuscripts, this study aims to analyse the physical components of the Shiraz codex (paper, layout and ruling, binding…) as well as decorations (illuminations and illustrations) in order to identify specificities.The book craftsmen inherited their skills and the styles they use from the former Timurid period. They specialized in a mass production of neatly copied items, always adorned with illuminations, and often illustrated. The present research underlines the interactions between this manuscript production and the historical events in Shiraz, in a time when the governorate of Turkmen generals replaced the rule of the prince. The transfer of production from the court atelier to private workshops echoes this change of power. At the same time profound visual changes distinguish the book production, notably a peculiar writing style of nasta‘lîq, only used by Shiraz copyists, as well as stereotyped forms of illuminations and various “commercial” styles of paintings.As a result, a strong visual identity characterises the Chiraz manuscripts. As they were exported to various parts of the Persianate sphere, they had a strong impact on local productions, notably in the Ottoman realm. Furthermore, the same artisans families in Shiraz ensured the permanency of Aq Qoyyunlu models in the first third of the 16th century under the Safavid dynasty.

[pt] No presente trabalho, faço traduções comentadas de dez gazéis do poeta persa do século XIV Hafiz de Xiraz. São traduções diretas do persa para o português, levando em consideração os elementos formais e temáticos do gazel – um tipo de poema lírico estruturado em dísticos. No que tange a forma, buscou-se adaptar os elementos formais – entre os quais se pode destacar a monorrima e os versos longos – tomando emprestando recursos da poesia espanhola. Em termos temáticos, as traduções consideraram as convenções tradicionais da poesia lírica amorosa do gazel, bem como a influência do sufismo, corrente mística do Islã. Considera-se que um elemento central da poética hafiziana é o jogo entre significados profanos e místicos, gerando indefinição e questionamento no leitor. Os gazéis que foram selecionados não seguem necessariamente uma linha em comum, mas são poemas icônicos de seu divã, frequentemente traduzidos. / [en] This thesis presents annotated translations of ten ghazals by the 14th-century Persian poet Hafez of Shiraz. These are direct translations from Persian into Portuguese, considering the formal and thematic elements of the ghazal – a genre of poem structured in couplets. In terms of form, my translation tries to adapt the formal elements of the ghazal – mainly its monorhyme and long lines. When it comes to themes, the translations take into consideration the traditional conventions of the amorous lyric ghazal, as well as the influence of Sufism – usually defined as Islamic mysticism. I see the interplay between profane and mystic meanings as a central aspect of Hafezian poetics, generating uncertainty in the reader. The ghazals that have been selected for translation do not necessarily follow a common thread, but are all iconic, oft translated, poems from his divan.

Thesis (MScAgric (Soil Science))--University of Stellenbosch, 2011. / Includes bibliography. / ENGLISH ABSTRACT: The topic of landscape heterogeneity has captured the imagination of ecologists and agriculturists alike and has been extensively investigated in this dissertation. Heuweltjies are landscape features putatively created by the termite Microhodotermes viator through their burrowing and nest-building activities. They have been closely examined in the natural veld of the Western Cape in the recent past and are the focus of many ecological studies. However, the effect of heuweltjies in cultivated landscapes (e.g. vineyards, orchards and wheat lands) remains unexplored. This study contributes significantly to our understanding of soil modifications associated with heuweltjies, as well as the physiology of vines growing on and off heuweltjies and wine made from these vines. It was hypothesized that heuweltjies occurring in cultivated areas can significantly affect crop yield and quality, thereby establishing itself as a potentially important role player in the agricultural economy of the Western Cape. This study was conducted in two climatic regions of the Western Cape, Stellenbosch (Mediterranean climate, Cabernet Sauvignon) and Robertson (semi-arid climate, Shiraz) to better understand how differences in heuweltjie characteristics correspond to differences in rainfall and temperature. In both study areas, heuweltjie soils were compared to non-heuweltjie soils with respect to physical and chemical. Grapevines associated with these heuweltjies were also compared to those growing on the adjacent, non-heuweltjie soils to determine any variation in vine vigour, physiology, phenology, berry characteristics and wine quality. Through the use of ANOVA's and Fisher's LSD posthoc tests to indicate statistical significance in soil and grapevine characteristics, it was apparent that heuweltjies induce substantial changes in soil and vine properties. Significant differences in the water content exist between the soils of the heuweltjies and non-heuweltjie areas. Heuweltjie soils exhibited higher values in comparison to the non-heuweltjie soils in the Stellenbosch study area, with opposite results in Robertson. Heuweltjie soils also displayed higher exchangeable calcium and magnesium and higher total carbon and total nitrogen values than non-heuweltjie soils in both study areas. Differences in physiology were more subtle, but vine vigour was severely altered on the heuweltjie-associated vines, exhibiting excessive vegetative growth in Stellenbosch, leading to variations in berry characteristics on and off the heuweltjies. Again, the opposite was observed for Robertson. Lower sugar and alcohol percentages and higher titratable as well as malic acid concentrations were observed in the wines emanating from the heuweltjies in Stellenbosch. Sensory analyses proved significant, as lower astringency and alcohol burn were detected in the Cabernet Sauvignon heuweltjie wines than the non-heuweltjie wines in the Stellenbosch study area. Chemical differences in the wines from the Robertson study are were insignificant. However, a significantly lower fruitiness was observed in the Shiraz heuweltjie-wines when compared to the non-heuweltjie wines. Differences in soil water content between heuweltjies and its adjacent soils was the most influential factor in this study, and affected all of the soil-grapevine interactions to a large extent. Further research need to be conducted to better understand and clarify the reasons behind these variations, as well as possible effects of global warming on heuweltjie functioning in different climatic regions of the Western Cape. / AFRIKAANSE OPSOMMING: Die onderwerp van landskap heterogeniteit het die verbeelding van beide ekoloë en landboukundiges aangegryp en is op `n omvangryke wyse ondersoek in hierdie tesis. Heuweltjies is landskap eienskappe geskep deur die uitgrawe en nesbou aktiwiteite van die termiet Microhodotermes viator. Heuweltjies in die natuurlike veld is intensief bestudeer in die onlangse verlede en is die fokus van `n verskeidenheid ekologiese studies. In bewerkte landskappe (bv. wingerde, vrugteboorde en koringlande) is daar egter `n groot tekort aan navorsing oor die invloed van heuweltjies. Hierdie studie dra grotendeels by tot ons begrip van heuweltjie-geassosieërde grondverandering, asook die fisiologie van wingerd wat groei op en af van heuweltjies, sowel as die wyn afkomstig van hierdie wingerdstokke. Hipoteties sal heuweltjies in bewerkte areas die gewasopbrengs asook –kwaliteit betekenisvol beïnvloed en word so dus gevestig as `n potensieël belangrike rolspeler in die landbou-ekonomie van die Wes-Kaap. Die studie was onderneem in twee klimaatstreke van die Wes-Kaap, Stellenbosch (Mediterreënse klimaat, Cabernet Sauvignon) en Robertson (semi-ariede klimaat, Shiraz) om vas te stel hoe verskille in heuweltjie eienskappe ooreenstem met verksille in reënval en temperatuur. In beide studie areas is heuweltjie gronde met nie-heuweltjie gronde vergelyk met betrekking tot fisiese en chemiese eienskappe. Wingerdstokke geassosieër met heuweltjies is ook vergelyk met dié wat heuweltjies omring om enige variasie in groeikrag, fisiologie, fenologie, druifkorrel eienskappe en wynkwaliteit te bepaal. Deur gebruik te maak van ANOVA's en Fisher se LSD posthoc toetse om statistiese betekenisvolheid in grond- en wingerdeienskappe aan te dui, was dit duidelik dat heuweltjies wesenlike veranderinge in dié eienskappe teweegbring. Betekenisvolle verskille heers in die waterinhoud tussen die heuweltjie en nie-heuweltjie gronde. Heuweltjie gronde het hoër waardes getoon in vergelyking met die nie-heuweltjie gronde in die Stellenbosch studie area, met teenoorgestelde bevindings in Robertson. Heuweltjie gronde het ook `n hoër konsentrasie uitruilbare kalsium en magenesium, en totale koolstof en stikstof in vergelyking met nie-heuweltjie gronde. Verskille in fisiologie was baie meer subtiel, maar wingerd groeikrag was beduidend verskillend op die heuweltjie-geasossieërde wingerdstokke, met oormatige vegetatiewe groei in Stellenbosch wat lei tot `n verskil in druifkorrel eienskappe op en af van die heuweltjie. Weereens is die teenoorgestelde waargeneem in Robertson. Laer suiker en alkohol persentasies, asook hoër titreerbare - en appelsuur konsentrasies was te bespeur in die wyne afkomstig van die heuweltjies in Stellenbosch. Sensoriese analise het betekenisvolle verskille bewys, met `n laer vrankheid en alkohol-brand sensasie waargeneem vir die Cabernet Sauvignon heuweltjie wyne as die nie-heuweltjie wyne in die Stellenbosch studie area. Chemiese verskille in die wyne vanaf Robertson was onbeduidend. Sensoriese analise het egter anders bewys, met `n betekenisvolle laer vrugtigheid te bespeur in die nie-heuweltjie wyne as die heuweltjie wyne in die Robertson studie area. Verskille in die grondwaterinhoud tussen heuweltjies en omringende gronde was die mees invloedryke faktor in hierdie studie en beïnvloed tot `n groot mate al die grond-wingerdstok interaksies. Verdere navorsing is nodig om helderheid te verskaf agter die redes vir hierdie variasies, sowel as moontlike gevolge van aardverwarming op funksionering van heuweltjies in verskillende klimaatstreke van die Wes-Kaap.