Assessing harvest maturity in nectarines

L. M.M. Tijskens, P. Eccher Zerbini, R. E. Schouten, M. Vanoli, S. Jacob, M. Grassi, R. Cubeddu, L. Spinelli, A. Torricelli

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

The maturity at harvest of nectarines can be assessed with the novel technique of time-resolved reflectance spectroscopy (TRS) measuring the light absorption at 670 nm in the fruit flesh. A kinetic model was developed that links this absorption coefficient (μa), expressed as the biological shift factor, to firmness decrease during ripening. The model thus includes the variations in maturity at harvest of the individual fruit. In non-linear regression analyses of data from four different seasons, the explained part ranged from 81 to 92% for cv 'Spring Bright'. The kinetic parameters values obtained were highly similar in different seasons. The results suggest that in nectarines the degreening of fruit flesh, expressed as TRS absorption at 670 nm, is synchronised with the softening. The distribution of μa was skewed, but that of the biological shift factor, derived from μa, was normal. By measuring the colour of fruit flesh with the non-destructive and very rapid TRS technique, and applying the model parameters, individual fruit can be graded at harvest into classes of usability, selecting fruit with different ripening stages for different market segments and predicting their softening time, thereby guaranteeing sufficient firmness to transport the fruit and sufficient ripening potential to reach good eating quality upon arrival in the receiving regions or countries. Consumers therefore will be more satisfied, encouraging them to repeated purchase. Retailers and wholesalers will be more satisfied since fruit unfit for sale not longer needs to be transported.

Original languageEnglish
Pages (from-to)204-213
Number of pages10
JournalPostharvest Biology and Technology
Volume45
Issue number2
DOIs
Publication statusPublished - 01-08-2007
Externally publishedYes

Fingerprint

nectarines
Fruit
fruits
Spectrum Analysis
ripening
Biological Factors
firmness
degreening
kinetics
sales
Color
Eating
Regression Analysis
ingestion
markets
color
methodology

All Science Journal Classification (ASJC) codes

  • Food Science
  • Agronomy and Crop Science
  • Horticulture

Cite this

Tijskens, L. M. M., Zerbini, P. E., Schouten, R. E., Vanoli, M., Jacob, S., Grassi, M., ... Torricelli, A. (2007). Assessing harvest maturity in nectarines. Postharvest Biology and Technology, 45(2), 204-213. https://doi.org/10.1016/j.postharvbio.2007.01.014
Tijskens, L. M.M. ; Zerbini, P. Eccher ; Schouten, R. E. ; Vanoli, M. ; Jacob, S. ; Grassi, M. ; Cubeddu, R. ; Spinelli, L. ; Torricelli, A. / Assessing harvest maturity in nectarines. In: Postharvest Biology and Technology. 2007 ; Vol. 45, No. 2. pp. 204-213.
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Tijskens, LMM, Zerbini, PE, Schouten, RE, Vanoli, M, Jacob, S, Grassi, M, Cubeddu, R, Spinelli, L & Torricelli, A 2007, 'Assessing harvest maturity in nectarines', Postharvest Biology and Technology, vol. 45, no. 2, pp. 204-213. https://doi.org/10.1016/j.postharvbio.2007.01.014

Assessing harvest maturity in nectarines. / Tijskens, L. M.M.; Zerbini, P. Eccher; Schouten, R. E.; Vanoli, M.; Jacob, S.; Grassi, M.; Cubeddu, R.; Spinelli, L.; Torricelli, A.

In: Postharvest Biology and Technology, Vol. 45, No. 2, 01.08.2007, p. 204-213.

Research output: Contribution to journalArticle

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Tijskens LMM, Zerbini PE, Schouten RE, Vanoli M, Jacob S, Grassi M et al. Assessing harvest maturity in nectarines. Postharvest Biology and Technology. 2007 Aug 1;45(2):204-213. https://doi.org/10.1016/j.postharvbio.2007.01.014