Food Science and Technology Research
Online ISSN : 1881-3984
Print ISSN : 1344-6606
ISSN-L : 1344-6606
Original papers
Total Phenolic Content, Antioxidative, Anti-amylase, Anti-glucosidase, and Antihistamine Release Activities of Bangladeshi Fruits
Sheikh Julfikar HOSSAINIyo TSUJIYAMAMikako TAKASUGIMd. Ashabul ISLAMRajat Shuvra BISWASHitoshi AOSHIMA
Author information

2008 Volume 14 Issue 3 Pages 261-268


To seek out a cheap source of dietary polyphenols and antioxidants along with anti-amylase and anti-glucosidase activities, ethanol extracts of eleven cheap Bangladeshi fruits were investigated. The extracts were also examined for anti-allergic activity using rat peritoneal exudate cells exposed to the calcium ionophore A23187. Phyllanthus emblica (emblic myrobalan) had the highest total polyphenol content (339 mg gallic acid equivalent (GAE)/g), followed by Syzygium cumini (Indian blackberry; 192.3 mg GAE/g), and Aegle marmelos (wood apple; 53.7 mg GAE/g). P. emblica, and S. cumini also exhibited the most potent DPPH radical scavenging activity, with an IC50 of 2.1 and 8.6 μg/mL respectively. These extracts also showed promising reducing powers with P. emblica having the greatest such activity (optical density (O.D.) 1.66), followed by S. cumini (O.D. 1.34), at a concentration of 0.2 mg/mL. The extracts of Artocarpus heterophyllus (jackfruit) and S. cumini showed promising chelating activities. At a concentration of 1 mg/mL, Dillenia indica (chalta) showed the highest inhibition of α-amylase activity (60%), and A. marmelos, D. indica, P. emblica, Spondias dulcis (hog-plum) & S. cumini completely inhibited α-glucosidase activity (100%). Apart from A. heterophyllus, D. indica and Phyllanthus acidus (star-gooseberry), all other extracts inhibited the release of histamine from the peritoneal exudate cells, with S. cumini having the strongest effect. These fruits therefore have activities beneficial to physiological health.

Information related to the author
© 2008 by Japanese Society for Food Science and Technology
Previous article Next article