Abstrak

Baca Juga : PENINGKATAN KONSENTRASI SITRALRNMINYAK SEREH DAPUR (CYMBOPOGON CITRATUS)RNMENGGUNAKAN DISTILASI VAKUM (DEWI ERMAYA, 2014) ,

Baca Juga : PENYULINGAN MINYAK ATSIRI SEREH DAPUR (CYMBOPOGON CITRATUS) DENGAN METODE PENYULINGAN AIR-UAP (zaituni, 2016) ,

kadar alkali bebas pada berbagai taraf berkisar antara 0,93%-1,77% dengan rata-rata 1,23%. analisis ragam menunjukkan bahwa konsentrasi minyak sereh dapur berpengaruh sangat nyata (p?0,01) terhadap kadar alkali sabun transparan dan konsentrasi etanol berpengaruh nyata (p?0,05) terhadap kadar alkali bebas sabun transparan. pada uji anti-bakteri, sabun transparan yang di uji tidak memiliki diameter zona hambat yang dihasilkan. nilai organoleptik warna yang dihasilkan berkisar antara 2,53–3,24 dengan rata-rata 2,83. analisis ragam menunjukkan bahwa konsentrasi minyak sereh dapur berpengaruh nyata (p?0,05) terhadap organoleptik warna sabun yang dihasilkan. nilai organoleptik aroma pada berbagai taraf perlakuan berkisar antara 2,40–3,45 dengan rata-rata 2,80. analisis ragam menunjukkan bahwa konsentrasi minyak sereh dapur dan konsentrasi etanol berpengaruh tidak nyata (p?0,05) terhadap aroma sabun transparan yang dihasilkan. analisis ragam menunjukkan bahwa konsentrasi minyak sereh dapur dan konsentrasi etanol berpengaruh tidak nyata (p?0,05) terhadap tekstur sabun transparan yang dihasilkan. hasil terbaik yang diperoleh dari berbagai taraf perlakuan adalah pada konsentrasi minyak sereh dapur 0% dan konsentrasi etanol 40% pada ulangan ketiga (k1e2u3) dengan hasil perlakuan rendemen 21%, kadar alkali bebas 1,25%, analisis uji anti-bakteri yang dilakukan secara keseluruhan tidak adanya zona hambat yang dihasilkan, nilai kesukaan warna 3,40, nilai kesukaan aroma 2,40 dan nilai kesukaan tekstur 2,80. kata kunci : sereh dapur, sabun transparan, etanol. to make a transparent soap, it should be added transparent agent that can cause the soap contains less mass than regular soap. the addition of aromatic compounds using hazardous chemicals are still frequent. lemongrass oil is organic material that can be used as an aromatic additive in the making of transparent soap. this study uses a completely randomized design (crd) factorial 2 (two) factors, the concentration of lemongrass oil (k), which consists of three levels, namely k1 = 0%, k2 = 1%, k3 = 2% and concentration of ethanol (e) which consists of two levels namely e1 = 20% and e2 = 40%. analysis was conducted on the analysis of yield, levels of alkali-free, anti-bacterial test and organoleptic (color, aroma and texture). the yield of the various standards of treatment ranged from 2.,39 to 2.,25% with an average of 24%. analysis of variance showed that the concentration of lemongrass oil and ethanol concentration was highly significant (p?0,01) to transparent soap’s yield. free alkali content at various level ranged between 0.93 -1.77% with an average of 1.23%. analysis of variance showed that the lemongrass oil concentration significantly affected of free alkali on transparent soap (p?0,01)and concentration ethanol significant affected of free alkali on the levels (p?0,05) on the transparent soap. on test antibacterial transparent soap does not have a zone of inhibition produced. organoleptic value of color soap ranged from 2.53 to 3.24 with an average of 2.83. analysis of variance showed that the concentration of lemongrass oil soap significantly affect (p?0,05) the organoleptic color of transparent soap. value organoleptic aroma at different level of treatment ranged from 2.40 to 3.45 with an average of 2.80. analysis of varience showed that the concentration of lemongrass oil and ethanol affected unreal (p?0,05) to aroma the transparan soap. analysis of varience showed that the concentration of lemongrass oil and ethanol affected unreal (p?0,05) to texture the transparan soap. the best results from the various treatment level is the lemongrass oil with concentration of 0% and concentration ethanol 40% on the third reapet (k1e2u3) with of the yeald result 21%, and of 1.25 free alkali content. antibacterial test overall showed that no inhibition zone appeared. the colour value is 3,40, the aroma value is 2,40 and teksture value is 2,80. keywords: lemongrass, transparent soap, etanol

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