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Published VersionCC BY V4.0, Open Access
Journal article
A Review of Ladybug Taint in Wine: Origins, Prevention, and Remediation
Molecules, Vol.26(14), pp.1-16
2021
Abstract
Ladybug taint (also known as ladybird taint) is a relatively recently recognized fault that has been identified in wines from a wide range of terroirs. Alkyl-methoxypyrazines—particularly 2-isopropyl-3-methoxypyrazine—have been determined as the causal compounds, and these are introduced into grape must during processing, when specific species of vineyard-dwelling Coccinellidae are incorporated into the harvested fruit. Coccinella septempunctata, and especially the invasive Harmonia axyridis, are the beetles implicated, and climate change is facilitating wider dispersal and survivability of H. axyridis in viticultural regions worldwide. Affected wines are typically characterized as possessing excessively green, bell pepper-, and peanut-like aroma and flavor. In this paper, we review a range of vineyard practices that seek to reduce Coccinellidae densities, as well as both “standard” and novel wine treatments aimed at reducing alkyl-methoxypyrazine load. We conclude that while prevention of ladybug taint is preferable, there are several winery interventions that can remediate the quality of wine affected by this taint, although they vary in their relative efficacy and specificity.
Details
- Title
- A Review of Ladybug Taint in Wine: Origins, Prevention, and Remediation
- Authors
- Gary J Pickering (Author) - University of the Sunshine Coast, QueenslandAndreea Botezatu (Author) - Texas A&M University
- Publication details
- Molecules, Vol.26(14), pp.1-16
- Publisher
- MDPI AG
- Date published
- 2021
- DOI
- 10.3390/molecules26144341
- ISSN
- 1420-3049
- Copyright note
- Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/)
- Organisation Unit
- University of the Sunshine Coast, Queensland; Sustainability Research Cluster
- Language
- English
- Record Identifier
- 99578808802621
- Output Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Biochemistry & Molecular Biology
- Chemistry, Multidisciplinary