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KMID : 1161420140170080908
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Journal of Medicinal Food
2014 Volume.17 No. 8 p.908 ~ p.914
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Chemical Composition and Antibacterial Activity of Opuntia Ficus-Indica F. Inermis (Cactus Pear) Flowers
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Ennouri Monia
Ammar Imene
Khemakhem Bassem
Attia Hamadi
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Abstract
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Opuntia ficus-indica f. inermis (cactus pear) flowers have wide application in folk medicine. However, there are few reports focusing on their biological activity and were no reports on their chemical composition. The nutrient composition and hexane extracts of Opuntia flowers at 4 flowering stages and their antibacterial and antifungal activities were investigated. The chemical composition showed considerable amounts of fiber, protein, and minerals. Potassium (K) was the predominant mineral followed by calcium (Ca), magnesium (Mg), sodium (Na), iron (Fe), and zinc (Zn). The main compounds in the various hexane extracts were 9.12-octadecadienoic acid (29?44%) and hexadecanoic acid (8.6?32%). The antibacterial activity tests showed that O. inermis hexane extracts have high effectiveness against Escherichia coli and Staphylococcus aureus, making this botanical source a potential contender as a food preservative or food control additive.
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KEYWORD
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antibacterial activity, chemical composition, flowering stage, Opuntia inermis
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