Minarni Rama Jura
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Journal : Jurnal Akademika Kimia

Penggunaan Gel Lidah Buaya (Aloe vera) Sebagai Koagulan Alami Dalam Penjernihan Air Sumur Di Desa Sausu Tambu Kecamatan Sausu

Jurnal Akademika Kimia Vol 5, No 1 (2016)
Publisher : Universitas Tadulako

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Abstract

Research on the use of aloe vera gel (aloe vera) as a natural coagulant in water purification village wells Sausu Tambu has been done. This study aims to determine whether aloe vera gel can be used as a natural coagulant and determine the optimum ratio of aloe vera gel in water (V/V) which is used in the purification of water wells in the village Sausu Tambu. Research was conducted on the water sample preparation, natural production of aloe vera gel, water treatment and analysis of water quality parameters, namely turbidity, hardness, color, pH and temperature. The results showed that aloe vera gel can be used as a coagulant to purify the water with an optimum ratio of 0.3 mL aloe vera gel in 500 mL water sample. Aloe vera gel can reduce 72.22% of turbidity, 63.48% hardness, 68.62% color with a pH of 5.5 and a temperature of 30 oC. It can be concluded that the aloe vera gel has the ability as a coagulant to purify water.

Uji Aktivitas Antioksidan Ekstrak Daun Patikan Kebo (Euphorbia hirta L.)

Jurnal Akademika Kimia Vol 4, No 2 (2015)
Publisher : Universitas Tadulako

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Abstract

Patikan kebo (euphorbia hirta L.) is a plant commonly found in the tropical regions. The objectiveof this research was to determine the antioxidant activity of Patikan kebo leaves extract and tocategorize the strength of the extract in blocking free radicals. This research was conducted by laboratoryexperiment using maceration extraction techniques. Antioxidant activity of the extract was tested using1,1-diphenyl-2-pikrilhidrazil (DPPH). Variation concentrations of the used of Patikan kebo leavesextract and vitamin c as a positive control used for analysis were of 20 ppm, 40 ppm, 60 ppm, and 80ppm. Analysis of the sample was conducted using spectronic UV-Vis. The result showed that Patikankebo leaves extract was a very strong antioxidant. It was proved by the number of IC50 less then 50. Thecalculation of IC50 of patikan kebo leaves extract was 11.50 mg/L.

Analisis Kualitas Minyak Nilam (Pogostemon cablin Benth) Produksi Kabupaten Buol

Jurnal Akademika Kimia Vol 3, No 2 (2014)
Publisher : Universitas Tadulako

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Abstract

Patchouli ( pogostemon cablin benth ) is one of the essential oil producing plants which are quite important, known as Oil Patchouly. This oil pick strategic potential in the world market which is used as a binder fragrance in perfumes, cosmetics, pharmaceutical industry, and other industries. Buol which aims to determine the quality of patchouli oil. Samples is patchouli oil yield Buol. Parameters in meticulous ie specific gravity, refractive index, acid Numbers, Numbers Esther, and Solubility in Alcohol. The technique used is the technique of sampling area. The results showed that the Weighted Value Type 25oC / 25°C for samples A = 0.997 to 1.000, B = 0.962 to 0.965, C = 0.995 to 0.998 D = 0.980 to 0.983, and E = 0.968 - 0.971. To value Bias Index ( nD20 ) ie sample A = 1.45505 to 1.45705, B = 1.45506 to 1.45706, C = 1.45504 to 1.45704, D = 1.45503 to 1.45703, and E = 1.45523 to 1.45723. Numbers for acid sample value A = 2.805, B = 3.366, C = 2.5245, D = 3.0855 and E = 3.6465. For esther numbers are sample values A = 15.4275, B = 5.61, C = 12.6225, D = 4.2075 and E = 19.635. And last is the determination of solubility in alcohol that sample A = 1 : 2, B = 1 : 1.7, C = 1 : 0.9, D = 1 : 1, and E = 1 : 3. These data show patchouli oil production Buol area has good quality in terms of acid value, ester number and solubility in alcohol is the average Indonesian National Standards meet the standards and ISO. While the specific gravity and refractive index still does not meet the Indonesian National Standard and ISO.

Uji Aktivitas Antioksidan Ekstrak Buah Merah (Pandanus baccari L) Di Daerah Poso Sulawesi Tengah

Jurnal Akademika Kimia Vol 3, No 4 (2014)
Publisher : Universitas Tadulako

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Abstract

Research on the antioxidant activity test has been done on red fruit (pandanus baccari L) from Poso area Central Sulawesi. This research was conducted by laboratory experiments using maceration extraction techniques, DPPH (1,1-diphenyl-2-pikrilhidrazil) as free radicals, vitamin C as positive control, UV-Vis spectronic as a tool for antioxidant test, and red fruit extracts as samples. The aim of this research was to determine antioxidant strength of red fruit extracts. The red fruit sample was used as much as 30 grams, and the solvent was an absolute ethanol, whereas variations in the concentration of red fruit extracts used were 20 ppm, 40 ppm, 60 ppm, and 80 ppm. Antioxidant activity test was done by using a UV-Vis spectronic and IC50. The results showed that the red fruit extracts had strong antioxidant activity with the percentage of optimum activity in inhibiting free radical by 81.02%, and the IC50 value was 14.454 ppm.

Kondisi Optimum Adsorpsi Arang Hayati dari Kulit Pisang Raja (Musa X paradisiaca L.) terhadap Logam Timbal (Pb) dan Tembaga (Cu)

Jurnal Akademika Kimia Vol 7, No 2 (2018)
Publisher : Universitas Tadulako

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Abstract

This study aimed to determine the optimum condition of biocharcoal from banana peel on adsorption of lead (Pb) and copper (Cu) metals based on the variation of weights and biocharcoal contact times. Banana peel used in this research were taken from Sidondo III the village, Sigi, Central Sulawesi. To determine absorbed metals in biocharcoal banana peel was measured by a spectrophotometer spectroDirect. The results showed that the optimum weight of adsorption lead (Pb) ion was 80 mg and copper (Cu) ion was 40 mg with each percentage adsorption of 73.91% and 21.23%, respectively. The optimum time to adsorb lead and copper ions was 90 minutes with the percentage adsorption of 89.13% for lead ion and 25.86% for copper ion.

Uji Daya Hambat Ekstrak Bawang Hutan (Eleutherine palmifolia (L.) merr) dari Matantimali Terhadap Pertumbuhan Jamur Candida albicans

Jurnal Akademika Kimia Vol 5, No 2 (2016)
Publisher : Universitas Tadulako

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Abstract

Forest onion is a plant that is widely used as a traditional medicine and natural antioxidants. The aim of this study is to determine the extract of the forest onion that can inhibit the growth of the fungus candida albicans and to compare the inhibitory of extract of the forest onion (eleutherine palmifolia (L.) merr) by using different solvents, namely ethanol and distilled water which is carried out by the method of pitting. Suspension of the fungus candida albicanswas obtained from Clinical Laboratory Palu, Central Sulawesi. The results of research obtained that the inhibition of extract of the forest onion on growth of the fungus candida albicanswith ethanol was greater than with distilled water, the percentace was 65.44% and 54.78% for each solvents. It can be concluded that extract of the forest onion has the inhibitory on the growth of the fungus candida albicans.

Penentuan Konsentrasi Efektif Ekstrak Tanaman Patikan Kebo (Euphorbia Hirta) Merah Dan Hijau Dalam Melarutkan Kalsium

Jurnal Akademika Kimia Vol 6, No 4 (2017)
Publisher : Universitas Tadulako

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Abstract

The use of traditional materials is one alternative for the treatment of kidney stones. One of them is utilizing a plant of patikan kebo (Euphorbia hirta). This study is conducted by using laboratory experiments and the extract of the plant of patikan kebo red and patikan kebo green to dissolve the calcium phosphate as a substitute for kidney stones. The extraction of samples is conducted by decoction. The aim of the study is to determine the effective concentration of the extracts of patikan kebo red and green to dissolve calcium and test the effectiveness of the extracts of patikan kebo to dissolve calcium compared to Batugin elixir and distilled water. Determination of the concentration of dissolved calcium in the extracts using a flame photometer. The results show that the extract of patikan kebo red with a concentration of 2.1% is effective in dissolve the calcium with a concentration of 5.2 ppm. The extract of patikan kebo green with a concentration of 27.4% is effective in dissolving the calcium with a concentration of 27.5 ppm. When compared with Batugin elixir and distilled water, Batugin elixir can only dissolve the calcium with concentration 15.3 ppm, while distilled water can only dissolve 3 ppm of the calcium.

PENETAPAN KADAR RHODAMIN B DAN NATRIUM BENZOAT PADA SAUS TOMAT YANG BEREDAR DI WILAYAH PASAR INPRES KOTA PALU

Jurnal Akademika Kimia Vol 2, No 4 (2013)
Publisher : Universitas Tadulako

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Abstract

This research was conducted to determine the level of a dye, rhodamin B, and a preservative, benzoic acid, on tomato sauce distributed in the area of Palu city. The food additive is used in order to get more interesting color and the benzoic acid is used to keep the food fresh for a long period of time. The research method used was a thin layer chromatography. It was aimed at knowing weather there was a dye called rhodamin B in the research sample or not. From the analysis result, it can be said that the sample did not contain the dye rhodamin B. in addition, another research method used was alkali acid titration which was used to examine the sample quantitatively and qualitatively. From the qualitative examination, it was found that all tomato sauced sampled positively contained the preservative benzoic acid. The tomato sauce produced by Mojokerto-Indonesia contained 34.7mg/kg while the one produced by Urabaya-Indonesia contained 40mg/kg. In conclusion, (1) all sample of tomato sauce examined did not contain Rhodamin B,the red dye substance, which was forbidden to be used for food, cosmetics, and medicine according to the Health Ministerial Regulation of Indonesian Republic No. 722/Menkes/Per/IX/1988 concerning food composition; and (2) the content level of Benzoic Acid in tomato sauce spread out in the traditional market, Inpres, Palu city has fulfilled the standard, i.e. + 1000 mg/kg. However, it is expected that all people must still be careful when buying and using tomato sauce.

Efektivitas Ekstrak Buah Merah (Pandanus conoideus De Vriese) Asal Kabupaten Poso Sebagai Alternatif Penurun Kadar Gula Darah

Jurnal Akademika Kimia Vol 5, No 4 (2016)
Publisher : Universitas Tadulako

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Abstract

Bioactive compounds contained in red fruit (pandanus conoideus De Vriese) among others are flavonoids and tannins. The compounds are classified as very powerful antioxidants and can inhibit free radicals. This study aimed to determine the effective concentration of the red fruit extract from Poso as an alternative for lowering blood sugar levels. The separatin method used was boiling. The animals test were 15 male of mice (Mmus musculus) induced by ethylene diamine tetra acetic (EDTA). The mice were divided randomly into 5 groups with different treatments. The first, the second, and the third treatments were given red fruit extract each with a concentration of 10%, 20% and 30%. The fourth treatment was given glibenclamide suspension as a positive control, and the fifth treatments was given Na-CMC as a negative control. Data were analyzed using a statistical analysis of variance (Anova) test followed by Duncan test. The results showed that the preclinical test of red fruit extract reduced blood sugar levels of mice, and the most effective concentration was 20% as much as 68% (w/v) with significance level a = 0.05.

Uji Aktivitas Antioksidan Ekstrak Air dan Ekstrak Etanol Daun Kelor (Moringa Oleifera LAM)

Jurnal Akademika Kimia Vol 6, No 2 (2017)
Publisher : Universitas Tadulako

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Abstract

Moringa (moringa oleifera Lam) leaves contains many molecules as inhibitors for free radicals such as phenolic compounds (phenolic acids, flavonoids, quinones, coumarins, lignans, stilbenes, tannins), nitrogen compounds (alkaloids, amines, betalain), vitamins, terpenoids (including carotenoids), and several other endogenous metabolites as antioxidants. This study aimed to determine the antioxidant potency of water and ethanol extracts of moringa (moringa oleifera Lam) leave obtained by maceration and dekok. The concentration of free radical 1,1-diphenyl-2-picrylhydrazyl (DPPH) was analyzed using UV-Vis spectrophotometer after addition of various concentrations of Moringa leaves extracts. Various concentrations of moringa leave extracts used were 20 ppm, 40 ppm, 60 ppm and 80 ppm. Vitamin C solutions as the positive control were prepared on similar various concentrations. The negative control was prepared using DPPH solutions dissolved in absolute ethanol. The results indicated that the ethanol extract of moringa leaves prepared by maceration method showed the antioxidant potency with an IC50 value of 22.1818 ppm, but the IC50 value of water extract of moringa leaves prepared by dekok was 57.5439 ppm. While, the IC50 value of Vitamin C was 8.8084 ppm. Based on the IC50 data it can be concluded that Vitamin C is a stronger antioxidant than moringa leaves extracts.