The effect of Modified Atmosphere Packaging (MAP) with biodegradable films (Film 1: 25 μm thickness; O2 TR 3000 cm3 m-2 day-1 atm-1; Film 2: 25 μm thickness O2 TR 900 cm3 m-2 day-1 atm-1) on preserving sweet cherry fruit quality during cold storage was evaluated. The biodegradable films were compared with a control film of polyethylene (25 μm thickness; O2 TR 8000 cm3 m-2 day-1 atm-1). Gas composition inside the packages, parameters related to quality (firmness, colour, Total Soluble Solids content, Titratable Acidity) and changes in bioactive compounds (total polyphenols, total anthocyanins and total antioxidant activity) were analyzed during 15 days of cold storage at 1°C. The data showed that the use of biodegradable films was useful to preserve quality of cherries through a delay in the changes in colour and the losses of firmness and acidity. Film 2, characterized by an high permeability to CO2 and high barrier to O2 provided the best results in terms of colour, acidity and firmness. With respect to anthocyanins content, phenolics contents and total antioxidant activity, differences existed among the three treatments (control, Film1, Film 2) but was detected any negative effect due to biodegradable films. The results suggest that biodegradable polymers could be used in packaging of sweet cherries without negative effects on final quality.

Modified atmosphere packaging of sweet cherries with biodegradable films

GIACALONE, Giovanna;CHIABRANDO, Valentina
2013

Abstract

The effect of Modified Atmosphere Packaging (MAP) with biodegradable films (Film 1: 25 μm thickness; O2 TR 3000 cm3 m-2 day-1 atm-1; Film 2: 25 μm thickness O2 TR 900 cm3 m-2 day-1 atm-1) on preserving sweet cherry fruit quality during cold storage was evaluated. The biodegradable films were compared with a control film of polyethylene (25 μm thickness; O2 TR 8000 cm3 m-2 day-1 atm-1). Gas composition inside the packages, parameters related to quality (firmness, colour, Total Soluble Solids content, Titratable Acidity) and changes in bioactive compounds (total polyphenols, total anthocyanins and total antioxidant activity) were analyzed during 15 days of cold storage at 1°C. The data showed that the use of biodegradable films was useful to preserve quality of cherries through a delay in the changes in colour and the losses of firmness and acidity. Film 2, characterized by an high permeability to CO2 and high barrier to O2 provided the best results in terms of colour, acidity and firmness. With respect to anthocyanins content, phenolics contents and total antioxidant activity, differences existed among the three treatments (control, Film1, Film 2) but was detected any negative effect due to biodegradable films. The results suggest that biodegradable polymers could be used in packaging of sweet cherries without negative effects on final quality.
INTERNATIONAL FOOD RESEARCH JOURNAL
20
3
1263
1268
storage; organoleptic quality; Sweetheart cherry; bioactive compounds
Giacalone G.; Chiabrando V.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/134410
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