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Research Article

Rapid Assessment of Gray Mold (Botrytis cinerea) Infection in Grapes Using Biosensors System

Luciano Cinquanta, Donatella Albanese, Filippo De Curtis, Francesca Malvano, Alessio Crescitelli, Marisa Di Matteo
Am J Enol Vitic. August 2015 : ajev.2015.15029; published ahead of print August 06, 2015 ; DOI: 10.5344/ajev.2015.15029
Luciano Cinquanta
1Department of Agricultural, Environmental and Food Science, University of Molise, Via F. De Sanctis, 86100, Campobasso, Italy
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Donatella Albanese
2Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano (SA), Italy
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  • For correspondence: dalbanese@unisa.it
Filippo De Curtis
1Department of Agricultural, Environmental and Food Science, University of Molise, Via F. De Sanctis, 86100, Campobasso, Italy
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Francesca Malvano
2Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano (SA), Italy
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Alessio Crescitelli
3Institute for Microelectronics and Microsystems (IMM) of the National Council of Research (CNR), Via Pietro Castellino 111, 80131, Napoli, Italy
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Marisa Di Matteo
2Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano (SA), Italy
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Abstract

Botrytis cinerea is responsible for the gray mold disease, which causes considerable economic losses for winemakers. Its evaluation in wine grapes is commonly performed through visual estimation, which was demonstrated to be prone to assessor bias. Rapid and simple enzymatic carbon screen printed amperometric biosensors were here used to evaluate gluconic acid and glycerol content on wine grapes at different B. cinerea infection degrees. The lower concentrations measurable by screen-printed amperometric biosensors were 3 mg/L for gluconic acid (corresponding to an infection degree lower than 1%) and 35 mg/L for glycerol; the response times with a flow rate of 0.5 mL/min were in a range of 0.5 to 2 min in the linear ranges. This study demonstrates the effectiveness of the biosensors for rapid analysis of gluconic acid and glycerol in grapes, confirming their high correlation with B. cinerea degree of infection (R2 = 0.98). Thus, the biosensor developed to measure gluconic acid in grapes (or must), was more precise, and gave a faster response than methods that currently exist allowing the percentage of infection of grape berries by B. cinerea to be evaluated.

  • Key words: Botrytis cinerea
  • biosensors
  • gluconic acid
  • glycerol
  • grape
  • ©2015 by the American Society for Enology and Viticulture

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Rapid Assessment of Gray Mold (Botrytis cinerea) Infection in Grapes Using Biosensors System
Luciano Cinquanta, Donatella Albanese, Filippo De Curtis, Francesca Malvano, Alessio Crescitelli, Marisa Di Matteo
Am J Enol Vitic.  August 2015  ajev.2015.15029;  published ahead of print August 06, 2015 ; DOI: 10.5344/ajev.2015.15029

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Rapid Assessment of Gray Mold (Botrytis cinerea) Infection in Grapes Using Biosensors System
Luciano Cinquanta, Donatella Albanese, Filippo De Curtis, Francesca Malvano, Alessio Crescitelli, Marisa Di Matteo
Am J Enol Vitic.  August 2015  ajev.2015.15029;  published ahead of print August 06, 2015 ; DOI: 10.5344/ajev.2015.15029
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