The travel grant provided University of Adelaide PhD student, Lieke van der Hulst, the opportunity to attend and present at (i) the 11th Wartburg Symposium on Flavor Chemistry and Biology in Eisenach, Germany (June 21–24) and (ii) the Macrowine 2016 Symposium in Nyon, Switzerland (June 27–30). The focus of these symposia are flavour chemistry and biology, and grape and wine macromolecules and secondary metabolites, respectively.
Lieke van der Hulst presented research findings from her PhD at each conference, outlining the impact of smoke exposure by grapevines on the chemical composition of fruit, in particular grapes of different cultivars. Feedback from conference delegates was favourable and, together with networking opportunities and the knowledge gained from other presentation, which spanned flavour chemistry, analytical chemistry, biochemistry, sensory science and wine science fields, was immensely valuable.
The principal activity of the travel was to attend the international congress Macrowine 2016. The opportunity to have an oral presentation gave us the chance to present at the scientific community part of our results related with the project NWG 1401, funded by AGWA. The exposure of the data opened a discussion with experts of the field of wine macromolecules. The discussion focussed mainly on the option for further experimentation. Moreover, the attendance to the Macrowine 2016 gave the opportunity to get in contact with potential collaborators all over the world. Several presented interest on the work that was presented at the congress and for future collaborations. Finally, the participation at the Macrowine 2016 was a good opportunity to keep up to date with the lastest discoveries in the field of wine macromolecules.
This travel grant assisted in funding Dr Leigh Schmidtke to travel to attend two international conferences and visit collaborators in Paris and Italy. The X International Symposium on Grapevine Physiology and Biotechnology was held at Palazzo della Gran Guardia Verona from June 13th to 18th 2016. This symposium focussed on: Plant and Fruit Development; Yield, Berry Ripening, Grape and Wine Quality; Environmental Interactions and Climate Change; Soil, Water Relations and Mineral Nutrition; Grapevine-Pathogen Interactions and Disease Resistance; Advances in phenotypes, -omic Technologies and Postharvest Physiology. Recent Wine Australia funded research outputs were presented in the form of an oral presentation titled ‘Grapes to Wine: The Nexus Between berry Ripening, Composition and Wine Style’, and a poster titled ‘Study of Berry heterogeneity, Spatial Distribution and Ripening Within a Bunch: Potential Role of the Seed Content’. The XVI Chemometrics in Analytical Chemistry (CAC) conference was held in Barcelona from June 6th to 10th. This international conference is the leading scientific symposium for chemometrics and focused on: Theory and Method Development; Large Data; Multiblock data Analysis; Design of Experiments; Statistical process Control; Hyperspectral image Analysis; Food and Sensory Analysis and Data Fusion. Research outputs were presented in poster format titled ‘Grapes to Wine: Finding Contributors to Wine Style with Multiblock Analysis’.
Both conferences were well attended with approximately 250 delegates at each venue that allowed excellent opportunities for network with existing and potential collaborators. The travel grant also enabled an opportunity to liaise with Professor Douglas Rutledge from AgroParisTech on applications of several novel chemometric data methods for grape and wine composition and discussions with Fulvio Mattivi and Urska Vrhovsek from Fondazione Edmund Mach, San Michele, Italy on continuing collaborations.
The effect of harvest date, fermentation temperature and canopy management on tannin extraction was investigated to assist in viticultural and winemaking decisions to manage tannin levels in wine. Tannin extractability was determined in Shiraz grapes harvested at six different times during ripening in two seasons and fermented at three different temperatures. The effects of thirteen vineyard floor and irrigation canopy management treatments on tannin extractability were also determined on seven different sites
This travel grant enabled Dr Kerry Wilkinson to attend the In Vino Analytica Scientia Symposium (between the 14th and 17th July, 2015) and to visit collaborators from the University de Castilla Le Mancha, in Albacete Spain (on the 20th and 21st July, 2015). The symposium was held in Mezzacorona in Italy and focussed on: Chemical analysis and composition of grapes, wines and spirits; Chemical and biochemical reactions; Metabolomics, chemometrics and authenticity of products; and sensory analysis.
Attendance at the symposium provided an excellent opportunity to gain knowledge of recent advances in grape and wine research, as well as to disseminate recent research findings, via a poster titled ‘Understanding consumer preferences for Australian sparkling wines vs. French Champagne’. The conference also provided numerous networking opportunities, during which new and existing collaborations were pursued. Importantly, the trip also afforded an opportunity to visit and meet with the research group of Professor Rosario Salinas (University de Castilla de Mancha, Albacete, Spain), for the purpose of discussing ongoing collaborative research into the influence of foliar applications of oak extract and oak volatiles to grapevines on fruit, leaf and shoot composition; work also presented in poster form at In Vino Analytica Scientia.
The InVino 2015 symposium was held in the town of Mezzocorona in Italy, from the 14th to 17th of July. The symposium was attended by approximately 250 participants from different research groups from around the world and covered the following topics:
• Chemical analysis and composition of grapes, wines and spirits (2 sessions)
• Chemical and biochemical reactions
• Metabolomics, Chemometrics and Authenticity of products
• Sensory analysis
The travel grant allowed Joanna Gambetta to attend the InVino 2015 symposium and deliver an oral presentation titled “Creation of a wine quality prediction index; Correlation of aroma precursors developed in Chardonnay (Vitis vinifera L.) berries during ripening with final wine quality” as well as the poster titled “Prediction of phenolic composition of Shiraz wines using attenuated total reflectance mid-infrared (ATR-MIR) spectroscopy”. Conference attendance also provided the opportunity to gain new knowledge on the latest advances in wine analytical science and the current topics being researched across the world, as well as the chance to network with established researchers of the field.
Wine sensory and chemical composition and temperature were tracked and assessed in a series of bulk wine shipments between Australia and the UK.
No major sensory differences before and after wine transport, or between wine transportation techniques were observed in this study.
The full report is available to Australian grape and wine research R&D levy payers from the AWRI helpdesk by emailing email@example.com or phoning +61 8 8313 6600.
This travel bursary linked to the AGWA funded project (NWG 1301) about “optimising grape quality and value to improve vineyard profitability and sustainability” was provided to achieve three major aims. The first was to learn a new methodology to investigate the “perceptive interactions” occurring between aromatic compounds in wines. It is a new concept in oenology used to investigate wine aroma perception. To our present knowledge this approach has never been undertaken before for studying Australian wine aroma. Therefore the first objective was to learn about this concept from the world leaders regarding this topic in order to transfer the knowledge in Australia via NWGIC. The second was to apply this new approach to Australian Cabernet Sauvignon as it is one of the varieties targeted in the AGWA project. The third was to interact with grapevine and wine researchers in Bordeaux in order to open new perspectives of collaboration to bring value to the project NWG 1301.
This report provides a summary of the XXVIIth International Conference on Polyphenols, jointly hosted with the 8th Tannin Conference held in Nagoya, Japan from 2 to 6 September 2014 and the outcomes of attendance at this event by Angela Sparrow, a fourth year PhD candidate from the Tasmanian Institute of Agriculture at the University of Tasmania
In this work, an amperometric biosensor has been designed for the fast detection of sulphite in aqueous solutions. A sulphite oxidation peak at is observed using cyclic voltammetry and exhibits a linear peak increase with sulphite concentration. A calibration curve (current versus sulphite concentration) was produced to characterise the biosensors. However, the complex wine solutions revealed no observable signal indicating that the polyphenols and/or proteins present in wine inhibited the electron transfer. With the use of polymer films, control of pH, gold nanoparticles and/or enzymes and proteins, it was hoped that the design may be improved increasing the stability and signal. However, work to date has not been successful in getting the sensor to work in wine or other beverages.