It is widely recognised that the tourism experience involves pre-visit anticipation, travel to and from the site and post-visit reminiscence or recollection, yet to date few studies have explored the link between these elements. Winery visitation presents an excellent opportunity to explore these phases of the travel experience as wine is present pre-visit, on-site and post-visit. In 1999 this study set out to explore these links by surveying visitors to 33 New Zealand wineries and then tracking their behaviour six to eight months post-visit via a postal survey. From an initial sample of 1,090, 636 follow-up surveys were distributed with 358 usable surveys returned. The on-site survey explored the pre-visit and on-site wine habits and winery visitation behaviour of respondents, while 97 semi-structured interviews were also undertaken in order to provide further detail on some aspects of the on-site visit. The follow-up survey included an exploration of the respondents� on-going purchasing and consumption of wine as well as experiential elements such as recollection of the visit, word-of-mouth behaviour and enduring levels of satisfaction. A number of a priori segmentation criteria drawn from wine consumer behaviour and wine tourism literature have been applied in the analysis of the data in order to provide a detailed discussion of the various elements of this multi-phased experience. Many regional differences were observed in the demographic profile of respondents, while the age profile of male and female visitors were also significantly different. This has dispelled the myth of a 'typical winery visitor' put forward by many early wine tourism researchers and highlights the need for detailed market analysis for wineries and wine regions. Pre-visit wine habits and winery visitation behaviour were influenced by gender, age/generation and country of origin. However, the most significant influence was between different levels of wine knowledge. This highlights the importance of wine education and interpretation, which was also identified as an important part of the winery visit by many respondents. Examination of the on-site experience identified important regional differences in the nature of the winery experience and lead to the coining of the term touristic terroir to describe the nuances of the regional experience. Almost half of the respondents made a post-visit purchase, while there were moderately high levels of enduring satisfaction and high levels of word-of-mouth behaviour. Post-visit purchases were primarily influenced by taste, but experiential elements of the visit (including sharing the wine or winery experience with others, memory of the visit and the service received) were also moderately influential. This study has provided an insight into wine tourism and the behaviour of the winery visitor. It is the first and, to date, only nationwide survey of winery visitors anywhere in the world and one of only a handful of tourism studies that have attempted to track the behaviour of respondents. It has identified important connections between the on-site experience, experiential aspects of the post-visit experience and the purchasing and consumption behaviour of winery visitors. It also provides a framework for the study of other areas of tourism including souvenir purchases, holiday photography, food and tourism and tourist behaviour more broadly.

Bibliography : leaves 74-92. / v, 92, [59] leaves : ill. (some col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / An investigation was undertaken to identify a yeast with broad spectrum killer activity towards indigenous non-Saccaromyces yeasts of the wine ferment. / Thesis (Ph.D.)--University of Adelaide, Dept. of Plant Science, 2000

This research investigated the effects of Pediococcus spp. on Oregon Pinot noir wines. Pediococcus (P. parvulus (7), P. damnosus (1), P. inopinatus (1)) isolated from Oregon and Washington state wines demonstrated differences in their susceptibility to SO��� with some isolates growing well in model media at 0.4 mg/L molecular SO���. All isolates were all able to degrade p-coumaric acid to 4-vinyl phenol. The conversion of p-coumaric acid to 4-VP by pediococci resulted in accelerated production of 4-EP by B. bruxellensis in a model system. Growth of the pediococci isolates in Pinot noir wine resulted in a number of chemical and sensory changes occurring compared to the control. Very low concentrations of biogenic amines were measured in the wines with only wine inoculated with P. inopinatus OW-8 having greater than 5 mg/L. D-lactic acid production varied between isolates with OW-7 producing the highest concentration (264 mg/L). Diacetyl content of the wines also varied greatly. Some wines contained very low levels of diacetyl (< 0.5 mg/L) while others contained very high concentrations (> 15 mg/L) that were well above sensory threshold. Despite suggestions to the contrary in the literature, glycerol was not degraded by any of the isolates in this study. Color and polymeric pigment content of the wines also varied with wine inoculated with OW-7 containing 30% less polymeric pigment than the control. This may be related to acetaldehyde as a number of Pediococcus isolates, including OW-7, reduced the acetaldehyde content of the wine. Sensory analysis revealed differences in the aroma and mouthfeel of the wines compared to each other and to the control. In particular growth of some isolates produced wines with higher intensities of butter, plastic, and vegetal aromas while other also had lower perceived astringency. / Graduation date: 2013

Processing techniques for red wines and their potential health benefits have intensively been investigated, however, information relevant to the grape and wine industry in Texas is less frequently available. The overall objective of this work was to investigate the reduction of 3-alkyl-2-methoxypyrazines that can affect the quality of Texas wines and to study the health benefits of Texas wines. The methods used include SPME-GC-MS and molecular bioassays. The first objective was to demonstrate the anti-inflammatory potential effect of red wine polyphenols from Black Spanish wine (Vitis aestivalis hybrid) in colonic human fibroblast cells. Results show that an extract prepared from Black Spanish wine decreased gene expression and activation of NF-kB transcription factor and target proinflammatory cytokines and cell adhesion molecules. Induction of microRNA-126 (miR- 126) by wine extract was found to be one of the underlying molecular mechanism by which wine extract decreased vascular cell adhesion molecule (VCAM-1) and inflammation in colon cells. These mechanisms may be relevant to the prevention of iv inflammatory bowel disease (IBD) that may increase the risk for colon cancer. The second objective was to investigate the role of the green june beetle (GJB ) as exogenous source of MPs other than the multicolored Asian Lady beetle (Harmonia axyridis). Over the last decade, the green june beetle has been suspected to be a source of MPs based on intermittent reports from Texas growers of an atypical aroma and flavor reminiscent of crushed green June beetles (GJB). Specifically the North region of Texas seems affected. Results demonstrated GJB as source of 3-isopropyl-2- methoxypyrazine, where one GJB could elevate MPs above sensory perceptible levels in 4.3 gallons of wine. The incorporation of GJB to the winemaking process may contribute negatively to the sensory properties of Texas wines and therefore should be strictly controlled. The third objective was to explore the potential effect of micro-oxygenation treatment and accelerated aging techniques relevant for the state of Texas in the reduction of 3-Isobutyl-2-methoxypyrazine (IBMP), and 3-isopropyl-2-methoxypyrazine (IPMP) levels as determined by SPME-GC-MS. Results show that MPs were not affected by MOX or oak interaction. Although the data suggest that MOX and oak exposure do not directly affect MPs concentration. The fourth research objective was to explore the potential effect of three commercial available yeast strains, BM45, K1, and D80, on MPs levels in Black Spanish wines. Black Spanish wines were fermented with MB45 strain resulted in the highest amount of MPs. Conversely K1 and D80 yeast strains reduced IBMP levels in comparison with the control. An increase in IBMP was not expected. However it has been demonstrated that amino acids valine and leucine are MPs precursors. If Vitis v aestivalis hybrid grapes contained a similar methyltransferase enzyme found in Vitis vinifera grapes and S. cerevisiae contained similar IPMP biosynthesis pathway found in Pseudomonas perolens BM45 may have led to the increased IBMP observed in the fermentation. In addition we evaluated MPs levels of wines fermented over 20 days with a chemical defined grape juice medium containing a concentration of yeast available nitrogen of 200 mg N/L. Data suggest that wines fermented with BM45 and D80 yeast strains reduced IBMP but K1 yeast did not show any effect in comparison with the control. In addition MPs were evaluated in the yeast mannoproteins fraction. Results show the presence of IBMP in low concentration below the method detection limit. This data demonstrate for the first time that yeast mannoproteins binds IBMP. to evidence for interactions between mannoproteins secreted by the D80 yeast strain and IBMP. This work will provide valuable information regarding the potential health benefits of Vitis aestivalis hybrid grapes and reduction of MPs and thus improving the quality of Texas wines

The wine industry in Mendoza exemplifies the ways that cooperatives in Latin America cope with globalization and neoliberal economic reform. Cooperatives are economic organizations that bridge social, political and economic worlds for their members, and also escort their members from the past into the present. In the wine industry, technological advancement is necessary to compete in a global market, but many local cooperatives resist investing in this type of change. The regional cooperative faces the challenge of providing a buyer for its member cooperatives while also selling a quality product to consumers. The financial success of the regional cooperative position it to provide its members economic support and possibly to foster a restructuring of wine production in Argentina.

Corporate social responsibility (CSR) has become a worldwide issue as organizations are under increasing pressure to behave in socially responsible ways. Environmental responsibility as a part of CSR is often connected with sustainability and protection the environment. This is of a significant importance to New Zealand and its 'clean' and 'green' image. One industry having an impact on the environment, and also having a strategic position in the economy of New Zealand is the wine industry. The aim of the research is to understand what motivates and sustains companies' CSR practices. This exploratory study examines (1) what drives the industry to engage in CSR practices, (2) the role of stakeholders in the company's decision making, and (3) CSR practices in the wine industry. A qualitative research approach supplemented by quantitative measures was adopted to answer the research questions. 24 case study organizations (wineries) were studied and 31 managers interviewed. The research found that the most important drivers of CSR practices are personal values, preferences and satisfaction with this profession. This is followed by product quality and customers' demand. Though New Zealand wine companies are also driven by the market; the market still does not value CSR initiatives and companies do not receive a price premium for sustainable or organically grown grapes. Furthermore, environmental regulations belong to important drivers affecting companies' decision-making. However, companies do not consider current New Zealand's regulations as significantly difficult to follow. On the other hand, companies want to preempt future regulations. The research also revealed that the most important stakeholders are owners, shareholders, customers, wholesalers and international businesses. The role of communication and ecolabelling is also discussed. As a result, the study proposes a typology matrix that differentiates organizations' involvement in CSR according to the extent of CSR practices and their drivers. This study contributes to understanding of the New Zealand wine industry status in environmental CSR at the present, the extent of drivers of proactive environmentalism and companies' stakeholders, and the description of a typology matrix of companies engaging in CSR. This contribution is valuable for those interested in CSR, and the future of New Zealand's wine industry.

Phenolic compounds play an important role in red wine colour, bitterness, astringency, as well as a range of other tactile or 'mouth-feel' characteristics. Progressive changes of phenolic compounds, initially extracted from grapes, occur during the storage and aging of red wines. The decrease of astringency occurring during wine aging has been considered as a result of mainly anthocyanin-flavanol condensation either directly or mediated by aldehydes. The contribution of these polymeric pigments formed during wine aging to the unique properties of red wine is an important question still unanswered. Experiments were conducted to synthesise polymeric pigments in model wine solutions under different conditions in the absence of acetaldehyde to provide material for chemical and sensory studies. Only small amounts of polymeric pigments were formed in these experiments confirming that direct polymerisation is a slow process. The low yield of polymers made it necessary to investigate the isolation of polymeric pigments directly from wine. A preparative fractionation protocol was developed to obtain fractions enriched in different red wine pigment combinations for further investigation. A HPLC method was also developed that separated the pigmented and non-pigmented polymers, as well as the monomeric anthocyanins, flavanols (monomeric to trimeric), flavonols and hydroxycinnamic acids from each other. A 6 month old and a 5 year old Shiraz wine were fractionated and further analysed by acid hydrolysis in the presence of a nucleophile, gel permeation chromatography (GPC) and by different mass spectrometry techniques. The various fractions isolated from the 6 month old wine contained combinations of pentameric to dimeric pigments, while those from the 5 year old wine contained pigments with an average degree of polymerisation (DP) of at least 11 but possibly up to 32. Experiments were conducted to determine the sensorial contribution of anthocyanins to wine as well as the effect of anthocyanin-flavanol polymerisation reactions taking place during maturation. It was shown that significant changes occur in the polymeric phenol composition and in the mean degree of polymerisation of Shiraz wine during aging. With aging more skin tannin were incorporated in the pigmented polymers and the percentage of galloylation in these polymers decreased. In order to describe the sensory attributes of the polymeric pigments a refined vocabulary, describing the astringent and other mouth-feel sensations elicited by dry red table wines representing different styles was developed and called the mouth-feel wheel. The developed mouth-feel wheel was used in a study to investigate the contribution of anthocyanins and anthocyanin-proanthocyanidin reaction products to the mouth-feel properties of red wine. Wines were made from both red and white grapes with and without pomace contact, as well as with and without anthocyanin addition to the white grapes. The white wine made like a red wine did not exhibit the same mouth-feel sensory attributes of a red wine: it was lower in viscosity, less particulate in nature and lower in intensity for the astringency descriptors fine emery, dry and grippy. The presence of anthocyanins during fermentation appeared to increase the intensity of astringency related terms. Treatments with added anthocyanins increased the amount of polymeric phenols to twice that when compared to treatments without added anthocyanins. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1345103 / Thesis (Ph.D.) - University of Adelaide, School of Agriculture, Food and Wine, 2008

It is widely recognised that the tourism experience involves pre-visit anticipation, travel to and from the site and post-visit reminiscence or recollection, yet to date few studies have explored the link between these elements. Winery visitation presents an excellent opportunity to explore these phases of the travel experience as wine is present pre-visit, on-site and post-visit. In 1999 this study set out to explore these links by surveying visitors to 33 New Zealand wineries and then tracking their behaviour six to eight months post-visit via a postal survey. From an initial sample of 1,090, 636 follow-up surveys were distributed with 358 usable surveys returned. The on-site survey explored the pre-visit and on-site wine habits and winery visitation behaviour of respondents, while 97 semi-structured interviews were also undertaken in order to provide further detail on some aspects of the on-site visit. The follow-up survey included an exploration of the respondents� on-going purchasing and consumption of wine as well as experiential elements such as recollection of the visit, word-of-mouth behaviour and enduring levels of satisfaction. A number of a priori segmentation criteria drawn from wine consumer behaviour and wine tourism literature have been applied in the analysis of the data in order to provide a detailed discussion of the various elements of this multi-phased experience. Many regional differences were observed in the demographic profile of respondents, while the age profile of male and female visitors were also significantly different. This has dispelled the myth of a 'typical winery visitor' put forward by many early wine tourism researchers and highlights the need for detailed market analysis for wineries and wine regions. Pre-visit wine habits and winery visitation behaviour were influenced by gender, age/generation and country of origin. However, the most significant influence was between different levels of wine knowledge. This highlights the importance of wine education and interpretation, which was also identified as an important part of the winery visit by many respondents. Examination of the on-site experience identified important regional differences in the nature of the winery experience and lead to the coining of the term touristic terroir to describe the nuances of the regional experience. Almost half of the respondents made a post-visit purchase, while there were moderately high levels of enduring satisfaction and high levels of word-of-mouth behaviour. Post-visit purchases were primarily influenced by taste, but experiential elements of the visit (including sharing the wine or winery experience with others, memory of the visit and the service received) were also moderately influential. This study has provided an insight into wine tourism and the behaviour of the winery visitor. It is the first and, to date, only nationwide survey of winery visitors anywhere in the world and one of only a handful of tourism studies that have attempted to track the behaviour of respondents. It has identified important connections between the on-site experience, experiential aspects of the post-visit experience and the purchasing and consumption behaviour of winery visitors. It also provides a framework for the study of other areas of tourism including souvenir purchases, holiday photography, food and tourism and tourist behaviour more broadly.

This thesis presents a systematic investigation ofyeasts associated with wine grapes cultivated in several Australian vineyards during the 2001-2003 vintages. Using a combination of cultural and molecular methods, yeast populations of red (Cabernet sauvignon, Merlot, Tyrian) and white (Sauvignon blanc, Semilion) grape varieties were examined throughout grape cultivation. The yeast-like fungus, Aureobasidium pullulans, was the most prevalent species found on grapes. Various species of Cryptococcus, Rhodotorula and Sporobolomyces were frequently isolated throughout grape maturation. Ripe grapes showed an increased incidence of Hanseniaspora and Metschnikowia species for the 2001-2002 seasons, but not for the drought affected, 2002-2003 seasons. Atypical, hot and dry conditions may account for this difference in yeast flora and have limited comparisons of data to determine the influences of vineyard location, grape variety and pesticide applications on the yeast ecology. More systematic and controlled studies of these variables are required. Damaged grape berries harboured higher yeast populations and species diversity than intact healthy berries. PCR-DGGE analysis was less sensitive than plate culture for describing the diversity of yeast species on grapes; it detected prevalent species, but subdominant populations below 103 CFU/g were not detected. In some cases, PCR-DGGE revealed the presence ofyeasts (Candida galli, C. zemplinina) not isolated by culture. Fermentative wine species (Kluyveromyces, Torulaspora, Saccharomyces) were rarely isolated, and only detected by enrichment cultures. Significant morphological and genetic variability were detected among A. pullulans and other black yeasts isolates from grapes. Taxonomic characterization of 61 strains by ITS-RFLP and rDNA sequencing revealed that they belonged to several distinct species within the generic groupings ofAureobasidium, Hormonema and Kabatiella. Isolates were strong producers of extracellular enzymes and polysaccharides that could have oenological significance, and, using a plate assay, some were antagonistic towards Bacillus thuringiensis, several wine yeasts, and some spoilage and mycotoxigenic fungi found on grapes. Growth of Saccharomyces cerevisiae was not inhibited by these organisms in grape juice. A species-specific probe was developed for the identification of the wine spoilage yeast, Zygosaccharomyces bailii in a microtitre plate hybridization assay. The probe detected 102 cells/ml in wine, reliably differentiating Z. bailii from other Zygosaccharomyces and other wine-related yeasts.

The IPCC Third Assessment report (IPCC 2001a) concludes that Australia has significant vulnerability to the changes in temperature and rainfall projected over the next decades to 100 years. Agriculture and natural resources were two of the key sectors identified as likely to be strongly affected. Climate change will add to the existing, substantial pressures on Australia’s grape and wine industry sector. Vineyards have a life of thirty plus years so right now, when selecting vineyard sites, or when managing existing vineyards, consideration of the changing climate is prudent. (For complete abstract open document)