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, 47 (3), 1137-9

In Vitro Susceptibilities of Shigella Flexneri and Streptococcus Pyogenes to Inner Gel of Aloe Barbadensis Miller

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In Vitro Susceptibilities of Shigella Flexneri and Streptococcus Pyogenes to Inner Gel of Aloe Barbadensis Miller

Valerie A Ferro et al. Antimicrob Agents Chemother.

Abstract

Aloe barbadensis Miller (or Aloe vera) has widespread use in health products, and despite numerous reports on the whole plant, little work has been performed on the inner gel, which has been used extensively in these products. This report describes the in vitro susceptibilities of two bacteria to this component.

Figures

FIG. 1.
FIG. 1.
Effects of AV and AMP on growth of S. flexneri. S. flexneri was incubated at 37°C for 8 h in Muller-Hinton broth with AV (□) or AMP (○). The test agent concentrations on the x axis are shown in milligrams per milliliter for AV and in micrograms per milliliter for AMP. Alamar blue was used to ascertain the percentage of growth of S. flexneri. The results are expressed as the means ± standard deviations of three readings.
FIG. 2.
FIG. 2.
Effects of AV and AMP on growth of Streptococcus pyogenes. Streptococcus pyogenes was incubated at 37°C in TSB alone (□) or with AV (25 mg/ml) (⋄) or AMP (25 μg/ml) (○). The number of bacteria were calculated from A620 readings. The results are expressed as the mean A620s ± standard deviations of three readings.

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