Journal of Food, Agriculture and Environment

Vol 10, Issue 3&4,2012
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Effects of postharvest applications on berry quality, microbial population and morphological (epicuticular wax) deterioration of ready-to-eat table grapes


Işıl Çelikkol 1, Cihat Türkben

Recieved Date: 2012-06-27, Accepted Date: 2012-09-16


Ready-to-eat table grapes (cv. Alphonse Lavallée) were treated with distilled water, hot water and chlorine dioxide, then packaged in passive modified atmosphere packaging (MAP) and stored at 4±1°C for up to 14 days. The grapes were then examined for their physical, chemical, microbial, and morphological (epicuticular wax) deterioration and sensory evaluation. It was found that the waxy crystals weakened, fell onto the cuticle layer and formed smooth surfaces on the surface of the grape berries depending on the fourteen days storage period and applications. Hot water and chlorine dioxide treatments reduced the total number of microorganisms, fungi and bacteria populations on the surface of the berries. Chlorine dioxide was the most effective treatment in reducing the total number of microorganisms, fungi and bacteria populations on the minimally processed Alphonse Lavallée grape cultivar. In addition, gallic acid, caffeic acid, p-coumaric acid and ellagic acid can be detected as phenolic compounds. However, (+)- catechin hydrate and ferulic acid, quercetin hydrate, epicatechin, gallocatechin, epigallocatechin and rutin hydrate were not detected. 


Modified atmosphere packaging (MAP), minimally processed (fresh-cut) products, Alphonse Lavallée, liquid chromatography Diode Array Detector (LC-DAD),  scanning electron microscopy (SEM), phenolic compounds, surface wax structure (epicuticular wax)

Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 3&4
Category: Food and Health
Pages: 213-220

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