| Title: | Influence on grape aromatic compounds of natural fungicides used for the control of downy mildew |
| Author(s): | Perez-Alvarez EP; Marinozzi S; Garde-Cerdan T; Romanazzi G; |
| Address: | "Grupo VIENAP, Instituto de Ciencias de la Vid y del Vino (CSIC, Universidad de La Rioja, Gobierno de La Rioja), Logrono, Spain. Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, Ancona, Italy" |
| ISSN/ISBN: | 1097-0010 (Electronic) 0022-5142 (Linking) |
| Abstract: | "BACKGROUND: The grape volatile fraction determines to a great extent its aroma, which is one of the most important characteristics influencing wine quality and consumer preferences. Grapevine downy mildew (GDM) is one of the most important and devastating diseases of grapevines worldwide. In this study, the impact on the volatile composition of cv. Verdicchio grapes of classical copper formulations, was compared to that of alternative products. Thus, 11 treatments were foliar applied throughout one grapevine cycle. RESULTS: Most of the volatile compounds present in the grapes were not affected by the treatments used in order to prevent GDM. In the case of the total C(13) norisoprenoids, some differences were found between grapes untreated control and those applied with the grapefruit seed extract. Moreover, the content of alcohols was smaller in grapes from Bordeaux mixture treatment and higher in the samples from chitosan application. CONCLUSION: Therefore, from the qualitative point of view of the berry, treatment with tested products alternative to copper is recommended, which minimize the environmental and health problems that this heavy metal brings to the soil and in the winery, since it means that their applications did not affect the grape aroma. (c) 2022 Society of Chemical Industry" |
| Keywords: | "Citrus paradisi Copper/analysis/pharmacology Fruit/chemistry *Fungicides, Industrial/analysis/pharmacology Organic Chemicals/analysis Plant Extracts/analysis/pharmacology *Vitis/chemistry *Volatile Organic Compounds/chemistry *Wine/analysis Verdicchio chi;" |
| Notes: | "MedlinePerez-Alvarez, Eva P Marinozzi, Sofia Garde-Cerdan, Teresa Romanazzi, Gianfranco eng England 2022/02/10 J Sci Food Agric. 2022 Aug 30; 102(11):4570-4576. doi: 10.1002/jsfa.11814. Epub 2022 Feb 21" |
