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    • IJAFR, volume 54, no 1, 2015
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    • Irish Journal of Agricultural & Food Research
    • IJAFR, volume 54, no 1, 2015
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    Effect of carrot puree edible films on quality preservation of fresh-cut carrots

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    Author
    Wang, Xichang
    Kong, D.
    Ma, Z.
    Zhao, R.
    Keyword
    Carrots
    Edible films
    Enzyme activity;
    Food quality
    Coating treatment
    Date
    2016-01-13
    
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    URI
    http://hdl.handle.net/11019/1044; http://dx.doi.org/10.1515/ijafr-2015-0007
    Citation
    Wang, X., Kong, D., Ma, Z., et al. (2016). Effect of carrot puree edible films on quality preservation of fresh-cut carrots. Irish Journal of Agricultural and Food Research, 54(1), pp. 64-71. doi:10.1515/ijafr-2015-0007
    Abstract
    The effect of edible films based on carrot puree, chitosan, corn starch, gelatin, glycerol and cinnamaldehyde on fresh-cut carrots was studied during storage. Several parameters, such as firmness, colour, weight loss, total carotenoids, total phenols, polyphenol oxidase (PPO) activity and peroxidase (POD) activity in coated carrots were determined at regular intervals and then compared with the uncoated carrots throughout the storage period. Significant and expected changes were observed in all carrot samples that were compared. The coating treatment significantly (P < 0.05) delayed the senescence, reduced the deterioration of exterior quality and retained total carotenoids well compared with control (P < 0.05). In addition, significant inhibition of PPO activity (P < 0.05) and POD activity (P < 0.05) as well as reduced accumulation of polyphenols (P < 0.05) were observed for all coated samples. All of these favourable responses induced by coating treatment on minimally processed fresh-cut carrots showed beneficial physiological effects, which would give some useful references to the fresh-cut fruit and vegetable processing industry and satisfy people’s requirements allowing for extending product shelf life without negatively affecting the sensory quality or acceptability.
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    IJAFR, volume 54, no 1, 2015

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