Optimization of a method based on the simultaneous measurement of acoustic and mechanical properties of winegrape seeds for the determination of the ripening stage

Fabrizio Torchio, Simone Giacosa, Susana Río Segade, Fulvio Mattivi, Vincenzo Gerbi, Luca Rolle

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

13 Citazioni (Scopus)

Abstract

An instrumental texture analysis method has been optimized for the differentiation of grape ripening stages based on the simultaneous determination of mechanical and acoustic parameters of the seeds. Two factorial central composite design was used to optimize the most influencing operative conditions (speed and deformation) on mechanical and acoustic measurements. This experimental design in combination with response surface methodology showed that the most responsive parameters to changes in seeds during ripening were Young's modulus of elasticity, many acoustic parameters measured with instrumental gain set to 0 (acoustic energy, linear distance, and number of peaks) and others measured at 24 dB gain (linear distance, number of peaks, and average pressure level). However, the optimal operative conditions depended on the texture parameter used. A correlation study between texture parameters and phenolic compounds of the seeds revealed that acoustic parameters like the average pressure level could be proposed as phenolic maturity indices.
Lingua originaleEnglish
pagine (da-a)9006-9016
Numero di pagine11
RivistaJournal of Agricultural and Food Chemistry
Volume60
DOI
Stato di pubblicazionePubblicato - 2012

Keywords

  • acoustic emission
  • grape seeds
  • instrumental texture analysis
  • mechanical properties
  • phenolic maturity index
  • response surface methodology

Fingerprint Entra nei temi di ricerca di 'Optimization of a method based on the simultaneous measurement of acoustic and mechanical properties of winegrape seeds for the determination of the ripening stage'. Insieme formano una fingerprint unica.

Cita questo