Massey Documents by Type

Permanent URI for this communityhttps://mro.massey.ac.nz/handle/10179/294

Browse

Filters

2021 - 20254

Settings

Start date: 2020Subject: search.filters.subject.Wine

Search Results

Now showing 1 - 4 of 4
  • Thumbnail Image
    Item
    Consumer responses to smoke-impacted pinot noir wine and the influence of label concepts on perception
    (Elsevier Ltd, 2025-02-01) Fryer JA; Dupas de Matos A; Hort J; Tomasino E
    While wildfire's impacts on wine have been considered a defect due to the introduction of smoke-related off-flavours, limited studies have investigated consumers responses to smoke-impacted wines. The aims of this work were (i) to explore how New Zealand consumers respond to smoke-impacted wine; (ii) confirm whether clusters of consumers existed and characterise them by their liking of smoky flavours in foods/beverages and subjective wine knowledge; and (iii) explore how different label concepts influence consumer responses. Participants responded to liking, emotions, and perceived sensory attributes of five blends of smoke-impacted wine with non-impacted wine, along with a smoke-impacted wine presented with four different label concepts. Two clusters of consumers were identified, with one disliking the smoke-impacted wine (smoke-dislikers) and the other cluster liking (smoke-liker). The smoke-liker cluster indicated a greater liking of smoke flavours in foods and beverages, along with a higher level of subjective wine knowledge. For the labels, the introduction of the label concept significantly increased liking of the wine for the smoke-dislikers, as well as had the power to elicit different emotions and sensory experiences. This research provides vital information to the wine industry as they adapt to future wildfire years, along with how the distinct sensory profile may not be detrimental to consumer acceptance and can be modulated by the type of information on label. Further research is needed to explore how different populations and wine styles correlate with these findings, and the effects of varying levels of smoke exposure in Pinot noir and other grape varietals.
  • Thumbnail Image
    Item
    Terroir Dynamics: Impact of Vineyard and Canopy Treatment with Chitosan on Anthocyanins, Phenolics, and Volatile and Sensory Profiles of Pinot Noir Wines from South Tyrol
    (MDPI (Basel, Switzerland), 2024-04-23) Tchouakeu Betnga PF; Poggesi S; Darnal A; Longo E; Rudari E; Boselli E; Rolle L
    The effects of canopy treatment with chitosan and the effects of the vineyard location on the quality parameters, volatile and non-volatile profiles, and sensory profile of Pinot Noir wines from South Tyrol (Italy) were studied. Multivariate statistical analysis was applied to identify the most relevant compounds associated with the variability in phenolics and anthocyanins (analyzed by UHPLC-MS), volatile components (HS-SPME-GCxGC-ToF/MS), and basic enological parameters. A clear separation of low-altitude wines (350 m.a.s.l.), which had a high concentration of most of the identified volatile compounds, compared to high-altitude wines (800 and 1050-1150 m.a.s.l.) was pointed out. Low altitude minimized the concentration of the most significant anthocyanins in wines from a valley bottom, presumably due to reduced sun exposure. Wines obtained from chitosan-treated canopies, and, more particularly, those subjected to multiple treatments per year showed a higher amount of the main non-volatile phenolics and were sensorially described as having "unpleasant flavors" and "odors", which might suggest that grape metabolism is slightly altered compared to untreated grapevines. Thus, optimization of the treatment with chitosan should be further investigated.
  • Thumbnail Image
    Item
    A Complete Analysis Pipeline for the Processing, Alignment and Quantification of HPLC–UV Wine Chromatograms
    (Springer-Verlag GmbH Germany, 2024-03) Ianeselli A; Longo E; Poggesi S; Montali M; Boselli E
    Elucidating the chemistry of wine would help defining its quality, chemical and sensory characteristics and optimise the wine-making processes. High-performance liquid chromatography coupled with UV–Vis spectroscopy (HPLC–UV–Vis) is a common analysis method used to obtain the molecular profile of wine samples. We propose a complete procedure for the analysis of wine chromatograms. Data are pre-processed using standard methods of down-sampling, smoothing and baseline subtraction. Multiple samples are then merged in a three-dimensional tensor, decomposed using parallel factor analysis (PARAFAC2) into three factors: (i) one reduced (rank-one) chromatogram per sample, (ii) an estimate of the samples’ spectral UV–Vis profile and (iii) an estimate of the samples’ concentrations. If the decomposition is performed on a single peak of the tensor, the second and third factors correspond to the representative wavelength spectrum and to the relative concentrations of the samples, respectively. Otherwise, when multiple peaks are analysed, further processing is required. In the latter case, the decomposed rank-one chromatograms are peak-detected and aligned, clustered and integrated. A table containing the concentration of the peaks at different retention times is obtained. The pipeline proposed in this study is a guideline for a quantitative and reproducible chemical analysis of wine, or other samples, via the HPLC–UV–Vis method.
  • Thumbnail Image
    Item
    A Sociology of Wine – Reflections from my Kitchen Table
    (Lectito BV, Netherlands, 2021-12-01) Howland PJ
    In this paper Dr. Peter J. Howland—former bureaucrat, concrete block maker, journo (investigative and sports), publican, apple picker, bank clerk (for one week), gas station attendant (for two weeks), horse-racing results editor and now, wine scholar and practicing neo-Marxist Sociologist—reflexively interviews himself on the current situations in the ‘Sociology of Wine’ while sitting at his kitchen table nursing a newly inserted ‘bionic’ elbow and arm, drinking a local Pinot Noir, and ‘floating’ along on a concoction of painkillers and anti-inflammatories. Given his somewhat physically and socially unsettled circumstances, Howland is unsurprisingly drawn to discussing one of his grumpy old man ‘pet peeves’—that is how in the sociological study of wine the foundational and enduring materialities of commercial winemaking—and especially its botanical and economic affordances—are often under-analysed at best or at worst, are demonised as reductive and outmoded. Consequently, Howland argues with himself that these factors are also often overwhelmed by the bling of ‘flashy cultural turns’ in analysis and theorizing. He calls on sociologists far abler than himself to ensure the foundational and the obvious are an integral part of all wine scholarship—much like the laws of motion are always accounted for in physics research. Howland points to a number of studies that successfully (or at least, that commendably attempt to) combine both the foundational and the cultural turning—ideally highlighting their mutual constitutions and contradictions.