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Registros recuperados: 64
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Cinnamic acid, ethanol and temperature interaction on coumarate decarboxylase activity and the relative expression of the putative cd gene in D. bruxellensis Electron. J. Biotechnol.
Ganga,María Angélica; Salinas,Francisco; Ravanal,Cristina; García,Verónica; Carrasco,Carolina; Martínez,Claudio; Saavedra,Jorge.
Dekkera bruxellensis is one of the main contaminating yeasts in wine due to its ability to metabolize cinnamic acids into volatile phenols. This yeast metabolizes p-coumaric acid into 4-vinylphenol through a coumarate decarboxylase (CD) and then transforms it into to 4-ethylphenol (EF) through a vinylphenol reductase. In this work we investigated the influence of the interaction between the concentration of p-coumaric acid, ferulic acid and ethanol as well as growth temperature on the production of CD activity and the expression of a putative gene that codes for this enzymatic activity. For this, a Box Behnken experimental design was used. The concentration of p-coumaric acid (5-26 ppm) and ferulic acid (3-9 ppm) alone did not show any significant effect...
Tipo: Journal article Palavras-chave: Dekkera/Brettanomyces; Cinnamic acids; Coumarate decarboxylase; Off-flavours; Wine.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000500002
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Production of Rhodotorula glutinis: a yeast that secretes alpha-L-arabinofuranosidase Electron. J. Biotechnol.
Martínez,Claudio; Gertosio,Cecilia; Labbe,Angelica; Pérez,Rafael; Ganga,Maria Angélica.
Rhodotorula glutinis is a yeast that secretes the enzyme alpha-L-arabinofuranosidase (E.C. 3.2.1.55) into the culture medium and thus has an interesting biotechnological potential. To determine improved culture conditions of this organism, different factors of the culture media were evaluated such as the use of peptone as nitrogen source, salts composition, pH and growth temperature. Likewise, beet molasses and beet cosette were tested as industrial carbon sources to induce the production of the enzyme and how they influence the yeast growth. Based on these studies a culture medium is proposed for growth of this yeast in a continuous system. By assaying different dilution rates an average specific activity for the enzyme of 82.4 U/mg of protein was obtained.
Tipo: Journal article Palavras-chave: Alpha-L-arabinofuranosidase yeast; Enzymes; Wine.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000400009
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Produção integrada de uva para vinho. Infoteca-e
LOPES, P. R. C.; OLIVEIRA, J. E. de M.; ASSIS, J. S. de; OLIVEIRA, I. V. de M.; SILVA, R. R. S. da.
Introdução. Estado da arte da cultura - o problema; Benefícios ambientais da produção integrada; Ganhos econômicos com a produção integrada de uvas para vinho (PI UV); Ganhos da sociedade em termos de contaminação de produtos agrícola; Capacitação dos agentes envolvidos.
Tipo: Capítulo em livro técnico (INFOTECA-E) Palavras-chave: Uva para vinho; Vale do São Francisco; Videira; Grape; Wine; Uva; Vinho; Manejo; Produção Integrada.
Ano: 2009 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/162011
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An experimental study of wine consumers’ willingness to pay for environmental characteristics AgEcon
Bazoche, P.; Deola, C.; Soler, Louis-Georges.
The reduction of pesticides use is becoming a priority for the public authorities in many countries. We conducted an experiment with wine consumers to see whether end-consumers value the dissemination of information about environmentally-friendly production practices. The experiment was devised to (i) evaluate whether there is a premium for environmentally-friendly wines, (ii) determine whether or not consumers are sensitive to label owners who implement and guarantee the environmental actions, (iii) and assess the impact of public messages about the consequences of pesticide use. Some 139 participants were divided randomly into two groups. One group had no specific information about the current state of pesticide use in farming. The other group was given...
Tipo: Conference Paper or Presentation Palavras-chave: Willingness to pay; Wine; Effect of information; Experimental economics; Environment; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 2008 URL: http://purl.umn.edu/43651
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Does Knowledge-Based Economy Speaks to Consumers? A French Case Study with Respect to Food Products AgEcon
Giraud, Georges; Lebecque, Annick; Amblard, Corinne; Bord, Cecile; Sulmont-Rosse, Claire; Lefur, Yves.
The paradigm of knowledge-based economy states that information asymmetry between consumers and producers will be reduced thanks to information availability and dissemination through the Internet or other media channels. Conversely to this statement, some published articles shown that knowledge-based economy reinforces the information asymmetry between experts and novices among the consumers (Hogg et al., 2007; Gregan-Paxton & Roedder-John, 1997; Alba & Hutchinson, 1987). Accordingly, we will consider the non homogeneity of consumers and will try to identify and qualify the differences between several groups of respondents regarding two food items by means of a k-means clustering applied to a knowledge-oriented questionnaire.
Tipo: Conference Paper or Presentation Palavras-chave: Consumer Knowledge; Clustering; Wine; Cheese; France; Agribusiness; Agricultural and Food Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Industrial Organization.
Ano: 2008 URL: http://purl.umn.edu/49848
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A Methodology for Evaluating How Product Characteristics Impact Choice in Retail Settings with Many Zero Observations: An Application to Restaurant Wine Purchase AgEcon
Durham, Catherine A.; Pardoe, Iain; Vega-H, Esteban.
An approach is developed to examine the impact of product characteristics on choice using a quantity-dependent hedonic model with retail panel data. Since panel data for individual products from retail settings can include a large number of zero sales, a modification of the zero-inflated Poisson (ZIP) regression model is proposed for estimation. Results for this model compare favorably to results for alternative hurdle and negative binomial models. An application of this methodology to restaurant wine sales produces useful results regarding sensory characteristics, price, and origin/varietal information.
Tipo: Journal Article Palavras-chave: Hedonic; Restaurant; Sensory; Wine; Zero-inflated Poisson (ZIP); Consumer/Household Economics.
Ano: 2004 URL: http://purl.umn.edu/31138
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Are Consumers Indeed Misled? Congruency in Consumers' Attitudes towards Wine Labeling Information versus Revealed Preferences from a Choice Experiment AgEcon
Mueller, Simone C.; Umberger, Wendy J..
Please Contact Authors for Updated Version before Citing
Tipo: Conference Paper or Presentation Palavras-chave: Discrete choice experiment vs. attitude measurement; Food labeling; Willingness to pay; Consumers; Wine; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Marketing.
Ano: 2010 URL: http://purl.umn.edu/61331
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COMPETITIVENESS OF MILK AND WINE PRODUCTION AND PROCESSING IN ALBANIA AgEcon
Petrick, Martin; Schreiber, Catrin; Weingarten, Peter.
This study provides an empirical assessment of the competitiveness of Albanian dairy and wine production, based on specifically collected survey data. For both product groups, the analysis is carried out on two levels: farm level production of raw material and processing and manufacturing of the final product in the food industry. In a third step, both levels are aggre-gated to analyse the competitiveness of the entire production chain for each product group. Overall, the wine sector appears in an economically more favourable situation than the milk sector. Although there is currently no relevant export of wine, there has been considerable in-vestment activity at the farm level and the harmonisation of quality standards with EU legislation is currently...
Tipo: Working or Discussion Paper Palavras-chave: Agricultural sector; Competitiveness; Milk; Wine; Albania; P23; Q12; Q13; Agrarsektor; Wettbewerbsfähigkeit; Milch; Wein; Albanien; Crop Production/Industries.
Ano: 2004 URL: http://purl.umn.edu/14877
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Solvency and Performance of French Wineries in Times of Declining Sales: Co‐operatives and Corporations AgEcon
Declerck, Francis; Viviani, Jean-Laurent.
The paper assesses the ability of French wineries to prevail over the crisis of French wine in the years 2000. Corporations are distinguished from co‐operatives: Over the 2000‐2006 period in spite of sales fluctuations, French wineries did not increase their financial debt level substantially. Such result supports the traditional static trade‐off theory (TOT). Co‐operatives were able to absorb part of the impact of the wine crisis at the expense of their members, in increasing account payables to member. Corporations have not increased trade account payables to vine growers. In the mid‐2000s, the French wine crisis has not been strong enough to shake the financial structure of cooperatives and corporations. But co‐operatives look more affected. However,...
Tipo: Conference Paper or Presentation Palavras-chave: Winery; Co‐operative; Strategy; Debt; Leverage; Performance; Wine; Crisis; Agribusiness; Agricultural and Food Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Production Economics; Research Methods/ Statistical Methods.
Ano: 2010 URL: http://purl.umn.edu/100507
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CATCHING-UP TRAJECTORIES IN THE WINE SECTOR: A COMPARATIVE STUDY OF CHILE, ITALY AND SOUTH AFRICA AgEcon
Cusmano, Lucia; Morrison, Andrea; Rabellotti, Roberta.
From a development perspective an investigation of the changes that have occurred in the wine industry is of particular interest because it provides evidence on how emerging economies have been able to acquire significant shares of the international market in a dynamic sector. Based on novel empirical evidence as well as secondary sources, this paper shows that emerging countries with diverse institutional models and innovation strategies, have been driving the process of technological modernization and product standardization. Newcomers in the wine sector have responded particularly effectively to changes in consumption habits, and in aligning emerging scientific approaches with institutional building efforts and successful marketing strategies.
Tipo: Working or Discussion Paper Palavras-chave: Wine; South Africa; Chile; Italy; Emerging economies; Agribusiness; Institutional and Behavioral Economics.
Ano: 2009 URL: http://purl.umn.edu/48299
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Connecting Product Attributes with Emotional Benefits. Analysis of a Mediterranean product across consumer age segments AgEcon
Barrena Figueroa, Ramo; Sanchez Garcia, Mercedes.
Due to a high level of product substitution in the food market, it often proves difficult to strike a balance between supply and demand. This is especially true in sectors with a such high level of competition and product differentiation as the wine producing sector. Faced with the difficulty of differentiating the product in terms of its technical characteristics, quality and price, therefore, a useful alternative is to explore what consumers perceive to be its "emotional benefits", since these have been shown to have a decisive effect on consumer purchasing decisions. For marketing purposes, an understanding of how consumers' personality traits condition their choice of products can help manufacturers to improve their strategic positioning in the market....
Tipo: Conference Paper or Presentation Palavras-chave: Wine; Consumer behaviour; Laddering; Emotions; Differentiation; Demand and Price Analysis.
Ano: 2007 URL: http://purl.umn.edu/9435
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Impact of the Administrative Regulations in the Wine Value Chain: The Spanish Case AgEcon
de Felipe, Isabel; Briz, Miguel; Briz, Teresa.
The wine value chain is characterized by its traditional nature. The transformation of the raw material makes lasting products with a high added value, which entails large price differences between producers and consumers. Given the socioeconomic important of this sector, it has specially been taken into account by the administration, with a high level of intervention. There is an ample range of interventions, from a qualitative and from a quantitative point of view. The main objective of all these policies is the intention of controlling the supply and stimulating the demand. The impact of these measures is considered in the short term, to solve the surplus problems. However, at the long run, it has a negative impact. The new framework of the wine...
Tipo: Conference Paper or Presentation Palavras-chave: Wine; Regulations; Value chain; Agribusiness; Agricultural and Food Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Risk and Uncertainty.
Ano: 2009 URL: http://purl.umn.edu/59039
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COMPETITIVENESS OF WINE EXPORT FROM THE REPUBLIC OF SERBIA AgEcon
Vlahovic, Branislav; Puskaric, Anton; Maksimovic, Branka.
The authors of this paper analyze export and competitiveness of wine export from the Republic of Serbia. Main goal of the research reflects in perceiving basic features of export and competitiveness of wine export from the Republic of Serbia on international market. The analysis encloses time period 2004-2007. The amount of wine export is very modest and, in observed period, was realized average export of 8,6 million litres, which value amounts 9,6 million USD. Only 5% of total domestic production is exported. In export structure dominate CEFTA agreement signatory countries. Export price of wine from Serbia is doubly less in regard to average world price, and thrice in regard to the biggest world exporter – Italy. Average export price of wine produced in...
Tipo: Conference Paper or Presentation Palavras-chave: Wine; Export; Competitiveness; Agribusiness; Crop Production/Industries; International Relations/Trade.
Ano: 2009 URL: http://purl.umn.edu/57495
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Coordination Mechanisms along the Supply Chain: a Key-Factor for Competitiveness AgEcon
Carbone, Anna; Galli, Francesca; Sorrentino, Alessandro.
The purpose of this paper is to contribute to a better understanding of the role of relationships between stakeholders in the supply chain as a potential source of competitive advantage. In the case study, we focus on the wine industry in the Lazio Region (Italy). We observe a significant loss of competitiveness in this industry and we suggest that a higher level of communication and different coordination mechanisms among stakeholders could help in recovering a better market position. We focus on the linkages between farmers and the other food chain stakeholders through the perspective of Institutional Economics and Economics of Organization, in order to identify the key factors that determine the competitiveness of the supply chain’s product. The Lazio...
Tipo: Conference Paper or Presentation Palavras-chave: Coordination; Netchain; Wine; Lazio Region (Italy).; Food Consumption/Nutrition/Food Safety.
Ano: 2009 URL: http://purl.umn.edu/57992
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The agricultural and food trade in the first globalisation: Spanish table wine exports 1871 to 1935 – a case study AgEcon
Pinilla, Vicente; Serranoz, Raul.
Tipo: Working or Discussion Paper Palavras-chave: Wine trade; Economic history; Spain; Wine; Globalization; Agricultural and Food Policy; International Relations/Trade; Q17; Q18; N53; N54.
Ano: 2008 URL: http://purl.umn.edu/42657
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MEASURING THE ECONOMIC EFFECT OF GLOBAL WARMING ON VITICULTURE USING AUCTION, RETAIL AND WHOLESALE PRICES AgEcon
Ashenfelter, Orley; Storchmann, Karl.
In this paper we measure the effect of year to year changes in the weather on wine prices and winery revenue in the Mosel Valley in Germany in order to determine the effect that climate change is likely to have on the income of wine growers. A novel aspect of our analysis is that we compare the estimates based on auction, retail, and wholesale prices. Although auction prices are based on actual transactions, they provide a thick market only for high quality, expensive wines and may overestimate climate’s effect on farmer revenues. Wholesale prices, on the other hand, do provide broad coverage of all wines sold and probably come closest to representing the revenues of farmers. Overall, we estimate a 1°C increase in temperature would yield an increase in...
Tipo: Working or Discussion Paper Palavras-chave: Wine; Global warming; Auction prices; Retail prices; Wholesale prices; Demand and Price Analysis; Environmental Economics and Policy.
Ano: 2010 URL: http://purl.umn.edu/90482
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NON-CONVENTIONAL VITICULTURE AS A VIABLE SYSTEM: A CASE STUDY IN ITALY AgEcon
Vastola, Antonella P.; Tanyeri-Abur, Aysen.
Tipo: Working or Discussion Paper Palavras-chave: Organic viticulture; Wine; Agribusiness; Farm Management; Marketing.
Ano: 2009 URL: http://purl.umn.edu/53886
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RAISE YOUR GLASS: WINE INVESTMENT AND THE FINANCIAL CRISIS AgEcon
Masset, Philippe; Weisskopf, Jean-Philippe.
This paper uses auction hammer prices over the period 1996-2009, with a special emphasis on periods of economic downturns, to examine risk, return and diversification benefits of fine wine. Our research shows evidence that the wine market is heterogeneous with wine regions and price categories evolving differently in terms of volume and turnover. We construct wine indices for various wine regions and prices using repeat-sales regressions and find out that fine wine yields higher returns and has a lower volatility compared to stocks especially in times of economic crises. Forming portfolios for typical investors and taking risk aversion, different financial assets and various wine indices into consideration we confirm that the addition of wine to a...
Tipo: Working or Discussion Paper Palavras-chave: Wine; Alternative assets; Financial contagion; Portfolio diversification; Conditional CAPM; Financial Economics; Risk and Uncertainty.
Ano: 2010 URL: http://purl.umn.edu/90484
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A Hedonic Pricing Model for German Wine AgEcon
Schamel, Guenter.
We develop a hedonic pricing model for German quality wine. Quality indicators for 4,141 wines are sensory awards received at the annual German wine competition and the legally required quality category as well as a set of control variables including regional origin, color, style, and their age at the time of judging. The data confirms that sensory quality awards have a significant and positive price impact. Moreover, we estimate significant relative differences between quality categories, growing regions and most of the control variables.
Tipo: Journal Article Palavras-chave: Wine; Hedonic pricing models; Reputation; Consumer/Household Economics; Demand and Price Analysis; Marketing.
Ano: 2003 URL: http://purl.umn.edu/97975
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Analysing Wine Demand With Artificial Neural Networks AgEcon
Gerolimetto, M.; Mauracher, Christine; Procidano, I..
In this paper we analyse wine demand in Italy using microdata. Instead of estimating a traditional parametric model (like AIDS) we employed artificial neural networks (ANN) and evaluate the elasticities using two different methods, specific for the non parametric framework. We compared the performances of the two methods to estimate elasticities and put in evidence the relevance of some demographic variables together with the usual economic ones, explaining the consumer's behaviour.
Tipo: Conference Paper or Presentation Palavras-chave: Artificial neural networks; Demand analysis; Wine; Elasticity; Demand and Price Analysis; C14; C21; Q11; Q13.
Ano: 2005 URL: http://purl.umn.edu/24753
Registros recuperados: 64
Primeira ... 1234 ... Última
 

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