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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2017)
[Effective from January 1, 2017]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(11): 567-576
DOI: https://doi.org/10.20546/ijcmas.2018.711.068


Combined Effect of Chemical Treatment and Modified Atmosphere Packaging on Physicochemical Properties of Fresh-Cut Pear
Ram Prakash Kumar1* and Tankesh Kumar2
1Department of Agricultural and Food Engineering, Indian Institute of Technology, Kharagpur, India
2Department of Processing and Food Engineering, Acharya N. G. Ranga Agricultural University, Guntur, Andhra Pradesh, India
*Corresponding author
Abstract:

The effect of modified atmosphere packaging (MAP) with chemical treatment on physicochemical quality fresh-cut pears was investigated. Cut-pears were subjected to the following conditions: (1) MAP + Treated - (1% citric acid + 1% CaCl2) and stored in MAP at 8 ºC, (2) Treated - (1% citric acid + 1% CaCl2) and stored at room temperature and regular atmosphere, (3) MAP + Untreated - No chemical treatment and stored in MAP at 8 ºC, (4) Untreated - No chemical treatment and stored at room temperature and regular atmosphere. Changes in physiological loss of weight (PLW), firmness, pH, total soluble solids (TSS), titratable acidity, color, scanning electron microscope-energy dispersive X-ray (SEM-EDX) and sensory characteristics were evaluated at 8ºC for 8 days. Firmness and titratable acidity continuously decreased while PLW, pH, and TSS continuously increased from their initial values for all conditions. ‘L’ values decreased, ‘a’ and ‘b’ values increased during storage. Firmness and color were better maintained in MAP + Treated pear among all other samples. SEM-EDX analysis revealed that the surface of chemically treated sample was smoother than untreated sample. In the sensory test the panellists could not find any significant difference between freshly cut-pear and MAP + treated cut-pears at the end of storage period. These results suggested that fresh-cut pears could be stored maintaining its original quality for long time by chemical treatment of 1% citric acid + 1% CaCl2 in combination with MAP.


Keywords: Modified atmosphere packaging, Chemical treatment, Firmness, Color, Scanning electron microscope-energy dispersive X-ray (SEM-EDX) analysis
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How to cite this article:

Ram Prakash Kumar and Tankesh Kumar. 2018. Combined Effect of Chemical Treatment and Modified Atmosphere Packaging on Physicochemical Properties of Fresh-Cut Pear.Int.J.Curr.Microbiol.App.Sci. 7(11): 567-576. doi: https://doi.org/10.20546/ijcmas.2018.711.068