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Abstract
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Article Information:
Modified Atmosphere Packaging for Maintaining Quality and Shelf Life Extension of Persimmon Fruits
Dorria, M. Ahmed, Aml R.M. Yousef and S.M.A. Sarrwy
Corresponding Author: Dr. Mohamed Maher Saad Saleh
Submitted: 2011 April, 29
Accepted: 2011 May, 27
Published: 2011 July, 20 |
Abstract:
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The beneficial effects of using Modified Atmosphere Packaging (MAP) of persimmon fruits to
extend its availability for export purpose to perform the consumers and markets demands were investigated
during two successive seasons of 2007 and 2008. Hachia and Triumph persimmon fruits were harvested at three
quarter color stage and enclosed in different packaging materials of Low Density Polyethylene (LDPE) bags
at the thickness of 2, 4 and 7 :m LDPE. 100% Nitrogen gas was flushed into the bags for complete replacing
of normal air while control fruits were packed with aerobic atmosphere for each thickness. Fruit quality
characteristics i.e. fruit firmness, respiration rate, fruit color, Softening as days to eat soft, soluble solid content,
total acidity, ascorbic acid content, total phenols and total tannins were assessed periodically after storage
periods at 0ºC and after 7 days at 20ºC and 80-85% RH. Packaging fruits at 7 μm Low Density Polyethylene
film (LDPE) with N2 (100%) can be more effective in keeping fruits firm with the least respiration rate during
storage and after ripening at 20ºC than 4 and 2 μm LDPE films and control fruits for the two cultivars
respectively. Lightness (L*) and Chroma (C*) color parameters had the significant highest values in fruits
received (N2) application and packaged with7 μm LDPE after 90 d storage at 0ºC and 7d ripe. SSC had slight
insignificant decrease throughout the storage period at 20ºC due to different polyethylene packaging films and
100% N2 exposure, also untreated fruits showed the same direction. LDPE film at 7 μm thickness recorded the
highest content of ascorbic acid but with the least level of acidity and phenols content followed by 4 and 2 μm
films throughout storage and ripening periods.Total tannins as indicator of removing fruit astringency were as
storage period extend and the thickness of LDPE films increase in packed persimmon fruits in the two cultivars
respectively. Moreover, Triumph persimmon fruit had higher content of tannins compared with Hachia variety.
These results were suggested that the highest thickness of LDPE film (7 μm) and N2 (100%) are suitable
application for modified atmosphere packaging (MAP) of Hachia and Triumph persimmon fruits as response
for long storage under refrigeration with an additional period of time at ambient temperature.
Key words: Fruit quality, Modified Atmosphere Packaging, Nitrogen treatment, persimmon, phenols and tannins, ,
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Cite this Reference:
Dorria, M. Ahmed, Aml R.M. Yousef and S.M.A. Sarrwy, . Modified Atmosphere Packaging for Maintaining Quality and Shelf Life Extension of Persimmon Fruits. Asian Journal of Agricultural Sciences, (4): 308-316.
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ISSN (Online): 2041-3890
ISSN (Print): 2041-3882 |
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