italianoenglishfranÁaisdeutschespaŮolportuguÍs
Language
Search
  • » Technical Articles
  • » Application of visible/near infrared spectroscopy to assess the grape infection at the winery

Application of visible/near infrared spectroscopy to assess the grape infection at the winery

A. Tugnolo, V.Giovenzana, R. Beghi, L. Brancadoro, R. Guidetti; DiSAA, Universitŗ degli Studi di Milano, Italy

Application of visible/near infrared spectroscopy to assess the grape infection at the winery

The aim of this work was to investigate the applicability of vis/NIR spectroscopy for rapid grape infection assessment in a view of a grape classification directly at the check point station entering the winery.

The experimentation was conducted on white and red wine varieties, using grape bunches naturally infected with Botrytis cinerea, powdery mildew and sour rot, the major grape diseases. The research applied a compact vis/NIR device (400-1600 nm) for analysis of flows and/or non-homogeneous product.

The results obtained from PLS-DA models, in validation, gave a positive predictive value (PPV) of classification between 89.8% and 94.0% for grape. The results demonstrated that optical devices are capable to provide useful information for a better management of the vinification process.

Article based on the poster presented at the at the 10th edition of Enoforum (May 16th-18th, 2017, Vicenza, Italy)

Published on 09/10/2018
Related sheets
  • E. Aguera, J.M. Sablayrolles
    The seasonal character of harvests limits winemaking considerably, especially oenological research. Thus, conserving sterile musts during the whole year to carry out experiments is certainly a very...
    Published on:10/08/2005
  • Results of interviews in 10 winegrowing regions
    This document illustrate practices observed on field in the famework of interviews realized during Winetwork project. 219 interviews were realized in 10 european winegrowing regions with the object...
    Published on:06/12/2016
  • Wayne F. Wilcox ; Plant Pathology & Plant-Microbe Biology Section, SIPS, Cornell University, USA
    Botrytis bunch rot (BBR), caused by the fungus Botrytis cinerea, causes damage to ripening grape clusters throughout the temperate regions of the world where pre-harvest rains occur. Although pure ...
    Published on:26/04/2017
  • Lucile PIC et Jacques MATHIEU, GIE ICV VVS
    In order to help winemakers choose the most suitable analytical method to help prevent the appearance of volatile phenols and "animal" notes in their wines, we prepared some trials to evaluate the ...
    Price:6 €(Tax included)
    Published on:16/01/2017
  • Carlos M. LOPES; LEAF, Instituto Superior de Agronomia, Universidade de Lisboa,
    This article is focus on water competition by the swards and corresponding effects on grapevine vigor, yield and berry composition. The effect of terroir on grapevine responses is also underlined.
    Published on:16/04/2018
  • Khafizova Asiia, Ph.D., Doc. Ing. Miloö Michlovskż, DrSc.; Vinselekt Michlovskż a.s., Czech Republic
    The results of our study indicate that rootstocks influence significantly most of studied phenolic compounds, though it was also shown that the influence of the year is more prominent than the infl...
    Published on:18/06/2017
© All Right Reserved
ISSN 1826-1590 VAT: IT01286830334
powered by Infonet Srl Piacenza
Privacy Policy
This website and its related third-party services make use of cookies necessary for the purposes described in the cookie policy. If you want to learn more about cookies or how to disable them (either totally or partially), please see the cookie policy. By closing this banner, scrolling through this page, clicking on a link or continuing navigation in any other way, you consent to the use of cookies.
More informationOK

- A +