alexa In Vitro Synergistic Antibacterial Activity of Natural
ISSN: 2157-7471

Journal of Plant Pathology & Microbiology
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Research Article

In Vitro Synergistic Antibacterial Activity of Natural Honey Combined with Curcuma Starch and their Correlation with Diastase Number, Flavonoid and Polyphenol Content

Moussa Ahmed1*, Noureddine Djebli2, Saad Aissat1, Kheira Zerrouki3 and Akila Bourabeh1

1Institute of Veterinary Sciences University, Ibn-khaldoun Tiaret (14000), Algeria

2Departments of Biology, Faculty of Sciences, Mostaganem University, Algeria

3Departments of Biology, Chlef University, Algeria

*Corresponding Author:
Moussa Ahmed
Institute of Veterinary Sciences University
Ibn-khaldoun Tiaret (14000), Algeria
Tel: +213 65234059
E-mail: [email protected]

Received date: November 24, 2012; Accepted date: December 27, 2012; Published date: January 01, 2013

Citation: Ahmed M, Djebli N, Aissat S, Zerrouki K, Bourabeh A (2013) In Vitro Synergistic Antibacterial Activity of Natural Honey Combined with Curcuma Starch and their Correlation with Diastase Number, Flavonoid and Polyphenol Content. J Plant Pathol Microb 4:152. doi:10.4172/2157-7471.1000152

Copyright: ©2013 Ahmed M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Honey has been acknowledged worldwide as a good source of natural carbohydrates and sweetner. Six
honey samples of Apis mellifera forged on plants from western Algeria were analyzed to determine Total Phenolic Content (TPC), Total Flavonoid Content (TFC), Diastase Number (DN), Hydroxy Methyl Furfural (HMF) content and antibacterial activity alone and in combination with Curcuma Starch. The total phenol content was determined by using the Folin-Ciocalteu method, and the flavonoid content was analyzed using by the aluminum chloride method. The HMF and DN were determined by harmonized methods. An agar incorporation technique was used to assess the Minimum Inhibition Concentration (MICs) and Minimum Inhibition Additive Concentration (MIACs) of honey against two strains of Gram-Negative bacteria (Escherchia coli ATCC 25922 and Pseudomonas aeruginosa ATCC 2154). Total phenolic content of honeys ranged from 63.93 to 95.36 mg GAE/100 g honey, while Total Flavonoid Content
(TFC) ranged from 5.41 to 9.94 mg CE/100 g. Hydroxy Methyl Furfural (HMF) content shows values between 3.8 and 78.4 mg kg-1; diastase values were between 7.3 and 26. The MAIC for the six varieties of honeys tested ranged between 12 and 18% (vol/vol) and 11 and 15% (vol/vol) against E. coli and P. aeruginosa, respectively. The MIC range for honey alone was 5-70% (vol/vol) and 5-40 % (vol/vol) against E. coli and S. aureus, respectively. A positive correlation was observed between total phenolic content and diastase activity (r=0.248) and between diastase activity and total flavonoid content (r=0.240). No clear correlation has been established between the MIC drop and the Diastase Number. The use of curcuma starch allows honey benefit and would constitute a synergetic effect to the antibacterial activity of honey.

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