Record Details

Post-Harvest Biochemical Changes Associated with the Softening Phenomenon in Capsicum Annuum Fruits

IR@CSIR-CFTRI

View Archive Info
 
 
Field Value
 
Relation http://ir.cftri.com/1421/
Phy_01_96
 
Title Post-Harvest Biochemical Changes Associated with the
Softening Phenomenon in Capsicum Annuum Fruits
 
Creator Priya Sethu, K. M.
Prabha, T. N.
Tharanathan, R. N.
 
Subject 23 Vegetables
 
Description Changes in the activities of various cell-wall hydrolases were followed during ripening of bell pepper
(Capsicum annum). The activity of polygalacturonase (PG) increased, while that of pectin methyl esterase (PME)
decreased. The texture of the fruit declined concomitantly with the increase in PG activity. The behaviour of the
glycanases, namely cellulase, xylanase, mannanase, glucanase and galactanase, and glycosidases, like a-D-
mannosidase and/3-D-galactosidase, were monitored. The influence of low storage temperature (8 °) on the enzyme
activities was studied in which PG, PME, cellulase, mannosidase and galactosidase were suppressed to different
levels. Sugar composition of the alcohol-insoluble carbohydrate residue was also analyzed during ripening.
Galactose (10%) was the major sugar followed by arabinose (4.2%). The amount of the neutral sugar which was
initially 25% decreased to 15% during ripening, resulting in a nearly 40% loss; the changes mainly involved
reduction in galactosyl and arabinosyl residues.
 
Date 1996
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://ir.cftri.com/1421/1/Phytochemistr%29_42%284%29961-966_1996.pdf
Priya Sethu, K. M. and Prabha, T. N. and Tharanathan, R. N. (1996) Post-Harvest Biochemical Changes Associated with the Softening Phenomenon in Capsicum Annuum Fruits. Phytochemistry, 42 (4). pp. 961-966.