Studies on the effect of plant extracts on the shelf life of aonla (Emblica officinalis G.)
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Date
2005
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Publisher
CCSHAU
Abstract
The present investigation was carried out in the post
harvest laboratory of the Department of Horticulture at CCS
Haryana Agricultural University during the year 2004-2005. The
main objective was to know effect of plant extract on shelf life
and quality of aonla during storage at room temperature. The
different plant extracts used were neem, eucalyptus, marigold
and mahendi 2% and 5% in pre harvest and 5% and 10%
concentration in post harvest.
Neem 2% and 5% in pre harvest and 5% and 10% in
post harvest dip treatment were most effective in checking the
PLW and decay loss. There were continuous decrease in specific
gravity. TSS, non-reducing sugars and total chlorophyll
irrespective of the treatments. However, acidity, ascorbic acid,
total sugars, reducing sugars and carotenoids showed an
increasing trend. Fruits treated with different treatments were
mainly infected with Penicillium sp., Fusarium sp. and Aspergillus
sp. Slow occurance of pathogenic fungi was recorded in fruits
treated with neem followed by mahendi and eucalyptus, fruits
treated with neem effectively retained the TSS, acidity, ascorbic
acid, sugars and carotenoid content of the fruits. Neem treated
fruits showed least PLW and decay loss.