When tested by the method of spray-only extract found a letter with hexane sok effective in deterring the growth of bacteria. Bacillus thuringiensis is better than the other extracts.
The level of concentration by 100 and 200 mg/ml.The inhibition of the growth of bacteria is equal to 76.67 percent and 16.67, respectively.
That performance is still under the use of formaldehyde and chlorine concentration levels 4.8 and 9.6 mg/ml with a percentage of inhibition of 100 percent.
The inhibition of the growth of the fungus Beauveri bassiana found that extracts only the frozen galangal with hexane at concentration levels of 50, 100 and 200 mg/ml. The inhibition of the growth of the fungus is equal to 100 and 100 percent 81.67, respectively.
That high-performance than using chemicals formaldehyde and chlorine at concentrations inhibit 9.6 percent, with the percentage is equal to 80 percent and 98.33, respectively.