UJI DAYA HAMBAT EKSTRAK ETANOL KULIT BAWANG PUTIH (Allium sativum) DAN BAWANG MERAH (Allium cepa) TERHADAP Streptococcus sanguis

Anis, Noviana Sari (2016) UJI DAYA HAMBAT EKSTRAK ETANOL KULIT BAWANG PUTIH (Allium sativum) DAN BAWANG MERAH (Allium cepa) TERHADAP Streptococcus sanguis. Diploma thesis, Sekolah Tinggi Ilmu Kesehatan Nasional.

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Abstract

Streptococcus sanguis is a bacteria that can attack the immune system in the mucosa of the mouth, which causes thrush. Garlic contains antibacterial compounds alisin and red onions contain antibacterial compounds namely sulfur and flavonoids.This study was conducted to determine the effectiveness of skin ethanol extract of garlic and red onion skins ethanol extract of the bacterium Streptococcus sanguis by disc diffusion method (Kirby & Bouer) and analyzed statistically using the nonparametric Kruskal-Wallis test. The concentration of ethanol extract were tested on each extract is 25%, 50%, 75% and 100%. Positive and negative are 1% povidone iodine and 70% ethanol. The results showed that concentration of 25%, 50%, 75%, and 100% ethanol extract of garlic skin, skin ethanol extract of onion, control (+) and control (-) has diameter of inhibition zone average by 10 , 00 mm, 10.13 mm, 13.00 mm, 12.26 mm; 17.40 mm, 20.04 mm, 21,20mm, 22.20 mm; 19.23 mm and 6.00 mm. The analysis showed that average diameter of inhibitory zone ethanol extract of red onion skins concentration of 75% and 100% is comparable with the control (+) with sig value of 0.05 which means there is a significant difference. The antibacterial activity of ethanol extract of red onion skins 75% and 100% higher than the control (+).

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