WRI Seminar Series: A/Prof David Jeffery – What can modelling with A-TEEM data tell us about grape and wine traits?

A/Prof David Jeffery

Title: What can modelling with A-TEEM data tell us about grape and wine traits?

Abstract: This presentation will introduce the approach of absorbance-transmission and fluorescence excitation-emission matrix (A-TEEM) spectroscopy and highlight how we use that to undertake grape and wine research. Examples will include authentication of red wines, including wine classification at a sub-regional level, as well as prediction of grape maturity indices and sensory scores from grape and wine spectral data. The latter aspect presents somewhat of a holy grail in wine research, being able to forecast the sensory properties of wines using chemical methods of analysis in place of human panellists.

Bio: Dr David Jeffery is an Associate Professor in Wine Science at the University of Adelaide. He completed a PhD in Organic Chemistry and has significant analytical chemistry expertise. These capabilities underpin his research, which involves the application of synthetic organic chemistry, natural product isolation, structure elucidation, and analytical techniques such as GC-MS, HPLC-MS, and fluorescence spectroscopy. He has over 140 peer-reviewed publications and recently released the second edition of a co-authored textbook, Understanding Wine Chemistry.