Garlic as a Functional Material: -Anti bacterial Activity of Garlic Peel against Colletotrichum acutatum-

Abstract

Aomori Prefecture produces garlic on a large scale. The yield is about 80% of the national output. In proportion to the amount of garlic, large amount of peel is also produced. However, peel is disposed of as an industrial wastes, due to lack of effective utilization. We studied garlic peel to develop its uses. We hypothesized that it would not only have physical but also physiological protective activity toward the bulb which is important for proliferation of garlic. To prove our hypothesis, we explored antibacterial compounds from garlic peel. A highly active antibacterial fraction (minimum inhibitory concentration: 6 micro g/ml) against Colletotrichum acutatum was obtained from ethyl acetate extracts of the peel. Thus, the results suggest an effective and important use of the garlic peel.