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Characterization of Konjac Glucomannan Film Containing the Extracts of Atractylodes lancea and Saussurea lappa

The antibacterial properties of konjac glucomannan (KGM) film containing two herb extracts (Atractylodes lancea and Saussurea lappa) at various concentrations was studied in this present work. This activity was tested against two pathogenic bacteria, Bacillus subtilis and Staphylococcus aureus. The results showed that the mean value of inhibition zone diameter of incorporated films with Saussurea lappa extracts were higher than those incorporating Atractylodes lancea extracts for all concentrations. The film incorporated with S. lappa extract had higher antibacterial activity against both bacteria than incorporated with A. lamcea. For all these levels, it can be seen that the KGM film had satisfactory physical properties and antibacterial activities.