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Polarity-Based Solvents Extraction of Opuntia dillenii and Zingiber officinale for In Vitro Antimicrobial Activities

2011; Marcel Dekker; Volume: 16; Issue: 1 Linguagem: Inglês

10.1080/10942912.2010.517886

1532-2386

Muhammad Ihtisham Umar, Aqeel Javeed, Muhammad Ashraf, Amjad Riaz, Muhammad M. Mukhtar, Sheryar Afzal, Rabia Altaf,

Botanical Research and Applications

Extracts from dried stem of Opuntia dillenii and rhizome of Zingiber officinale were evaluated for antimicrobial activities by extraction in non-polar (petroleum ether and chloroform) and polar solvents (methanol and water). Bacillus subtilis and Staphylococcus aureus showed considerable susceptibility to all extracts of Opuntia dillenii and Zingiber officinale. Ether and chloroform extracts of Opuntia dillenii showed improved antimicrobial activity against Escherichia coli (gram negative) as compared to that of its methanolic and water extracts. On the other hand, methanolic and water extracts of Zingiber officinale showed better susceptibility for Escherichia coli. Salmonella typhi (gram negative) was found to be resistant to all extracts of both Opuntia dillenii and Zingiber officinale. Our results indicated that both Opuntia dillenii and Zingiber officinale have potent antimicrobial activity that is also based on solvent polarity during extraction.