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Journal : Al Ilmi

Isolasi, Seleksi dan Karakterisasi Bakteri Mannolitik yang berasal dari Serasah Tanaman Sawit Apriani, Ike
BIOILMI Vol 1, No 1 (2015): Agustus 2015
Publisher : Fakultas Tarbiyah dan Keguruan,Universitas Islam Negeri

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Abstract

Mananase enzyme used to hydrolyze manan in producing simple sugars, such as mannose and monooligosakarida which will be utilized in the industry. Mananase enzymes produced by microbes more attractive to industry because it is more economical, higher productivity and amore controlled production conditions. Mannolitic bacteria isolated from soil containing palm litter. Isolation is done by using selective media locus bean gum. The result showed 6 bacterial isolates that have the ability mannolitic. Isolate 6 has the highest mannolitic index of 0.85. Isolates 6 were characterized morphologically, showed that this isolate motile, cocci, and gram-negative. Physiological characterization showed that this isolate utilize peptone as a source of energy that is supported by VP and H2S test results were positive.
THE EFFECT OF WATER CONCENTRATION ON VITAMIN C RESISTANCE AND ORGANOLEPTICAL VALUE OF Aloe vera CANDIED Ummi Hiras Habisukan; Yulia Tri Samiha; Ike Apriani; Meli Yani
Al 'Ilmi : Jurnal Pendidikan MIPA Vol 6 No 2 (2017): Al 'Ilmi : Jurnal Pendidikan MIPA
Publisher : Fakultas Ilmu Tarbiyah dan Keguruan Universitas Islam Negeri Raden Fatah Palembang

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Abstract

Aloe vera is a plant that is easy to grow in hot and open air areas like in Indonesia. One of the foods made from Aloe vera is candied. The purpose of this study was to determine the effect of lime concentration on vitamin C and organoleptic content of Aloe vera. This research was conducted in March 2017 in Laboratory of Biology and Chemistry, Faculty of Tarbiyah and Keguruan Universitas Islam Negeri Palembang. This research uses experimental method with Completely Randomized Design (RAL) with one factor that is the concentration of lime solution with four treatment levels such as K1 = 1%, K2 = 2%, K3 = 3% and K4 = 4% with 5 replications. The test included organoleptic test using hedonic method and vitamin C test using titration method. Measurements of vitamin C levels in the five samples of the highest wet Aloe vera were obtained at a 1% concentration of lime water on average of vitamin C of 323.84 mg / 100gr and the measurement of vitamin C content of the lowest wet Aloe vera was obtained at a concentration of 4% vitamin C 98.6 mg / 100gr. The organoleptic test of candied Aloe vera using 31 best value panels was obtained at concentrations of 1%, 2% and the lowest values obtained at control concentrations. Keywords : Aloe vera, vitamin C, organoleptik, manisan