Journal
FOOD CHEMISTRY
Volume 286, Issue -, Pages 659-668Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2019.02.022
Keywords
Sweet cherry cv Ferrovia; Volatile organic compounds; Respiration activity; Sensory analysis; PCA; PLSR
Funding
- Puglia regional call Avviso Aiuti a Sostegno dei Cluster Tecnologici Regionali per l'Innovazione
- Continnova Project: Container innovative isotermico intermodale equipaggiato con atmosfera controllata per il trasporto di prodotti ortofrutticoli freschi [VFQA3D0]
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Volatile organic compounds, quality and sensory attributes of sweet cherry cv Ferrovia, cold packaged in Air or in different modified atmospheres (Low-O-2= 1% O-2/0.03% CO2; High-CO2 = 16% O-2/20% CO2; Mix = 1% O-2/20% CO2), were monitored until 21 days of conservation. Results showed that sweet cherry cv Ferrovia is sensitive to CO2 accumulation (over 20%) in low oxygen (about 1%) modified atmosphere, as showed by the increase in respiration rate, biosynthesis of fermentative volatile metabolites, and sensory perception of off-odours. However, High-CO2 treatment seemed to preserve quality and sensory traits, presumably due to the high initial concentration of O-2 (16%) that could limit the synthesis of ethyl esters and gamma-butyrolactone, keeping the accumulation of off-flavours below their sensory perception threshold. Finally, PLSR analysis allowed to select 1-pentanol as putative marker of sensory alteration and hexanal and 2-hexenal as possible predictors of freshness for Ferrovia sweet cherries.
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