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Musafira Musafira
Tadulako University
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AKTIVASI ARANG TEMPURUNG KELAPA DENGAN ZNCL2 DAN APLIKASINYA DALAM PENGOLAHAN MINYAK JELANTAH Pakiding, Lewi Michal; Sumarni, Ni Ketut; Musafira, Musafira
Natural Science: Journal of Science and Technology Vol 3, No 1 (2014): Volume 3 Number 1 (March 2014)
Publisher : Univ. Tadulako

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Abstract

Coconut shell charcoal as an agricultural waste material is high enough containing carbon. This underlying that coconut shell charcoal can be used as raw material of activated charcoal in purification of used cooking oil. Activator of the charcoal was  45% ZnCl2 in various time of heating at 110oC oven , i.e. 2 hours, 2.5 hours, 3 hours; 3.5 hours and 4 hours, then it was followed by various contact time in purification of used cooking oil, that were 1 hour, 2 hours , 3 hours, 4 hours and 5 hours. The obtained results showed that the best time to be used warming was 3.5 hours, which the iodine absorption was 626.25 mg/g. While the optimum contact time for adsorption was 2 hours. Clarity test was done based on several parameters, namely thiobarbiturat (TBA) value, peroxide value and free fatty acid (FFA) content. The results were 0.471042 mg/kg of malonaldehida, 9.1 meq/kg and 0.17152 % FFA respectively. Furthermore, colour test was done by using  spectrophotometer, it was obtained the T value of 1.62%.
PEMANFAATAN LIMBAH KULIT PISANG KEPOK (MUSA PARADISIACA FORMATYPICA) SEBAGAI BIOSORBEN LOGAM MERKURI (HG) Musafira, Musafira; Mirzan, Mohammad; Pratiwi, Wiwid
Natural Science: Journal of Science and Technology Vol 4, No 2 (2015): Volume 4 Number 2 (August 2015)
Publisher : Univ. Tadulako

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Abstract

Penelitian ini bertujuan untuk menentukan waktu setimbang, pH optimum, kapasitas adsorpsi kulit pisang Kepok terhadap logam merkuri. Penelitian ini dilakukan menggunakan rancangan acak lengkap (RAL) dengan 6 variasi waktu kontak, pH dan konsentrasi merkuri berturut-turut yaitu 10, 20, 30, 40, 50, 60 menit ; 1, 2, 3, 4, 5 dan 6 ; 10, 20, 30, 40, 50 dan 60 ppm. Setiap perlakuan diulang sebanyak dua kali. Dari hasil yang diperoleh menunjukkan bahwa waktu setimbang proses adsorpsi dicapai pada waktu 30 menit dengan persentase penjerapan sebesar 99,89 % dan kapasitas penyerapan sebesar 29,96 mg/g, pH optimum pada pH 5 dengan persentase penjerapan sebesar 99,70 % dan kapasitas penyerapan sebesar 29,91 mg/g. Kapasitas adsorpsi (qmaks) dari merkuri sebesar 59,55 mg/g dengan persentase penyerapan sebesar 99,25 %, pada konsentrasi merkuri sebesar 60 ppm.
PRODUKSI BIOGAS MENGGUNAKAN CAIRAN ISI RUMEN SAPI DENGAN LIMBAH CAIR TEMPE Ihsan, Arsul; Bahri, Syaiful; Musafira, Musafira
Natural Science: Journal of Science and Technology Vol 2, No 3 (2013): Volume 2 Number 3 (December 2013)
Publisher : Univ. Tadulako

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Abstract

This study aimed to determine the effect of ratio of liquid cow contents with tempeh wastewater and fermentation time on biogas production. The research was conducted using a completely randomized design  (CRD) with 7 point ratio variation cows rumen fluid contents with liquid wastewater tempe  (0:100, 5:95, 10:90, 15:85, 20:80, 25:75 and 100:) and fermentation time consisted of 12, 24, 36, 48, 60, 72, 84 and 96 hours. Each treatment was repeated twice. From the results obtained it turns out the highest content of biogas at a ratio of biogas yield of 2894,35 mg/L. Which produces biogas fermentation time the highest yield for 84 hours. Positive test the presence of mhetane in the biogas shown with the blue flame in the flame test.
TRANSLOKASI MERKURI (HG) PADA DAUN TANAMAN BAYAM DURI (AMARANTHUS SPINOSUS L) DARI TANAH TERCEMAR Irsyad, Muhammad; Sikanna, Rismawaty; Musafira, Musafira
Natural Science: Journal of Science and Technology Vol 3, No 1 (2014): Volume 3 Number 1 (March 2014)
Publisher : Univ. Tadulako

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Abstract

Research about mercury translocation (Hg) into the leaf of Amaranthus Spinosus L from polluted soil has been carried out. The research aim was to know influences of  remediation time on the abilty of  mercury absorptions , knowing the concentration of mercury distribution in the leaf of A. spinosus L and abilty of A. spinosus L as hyperacumulator plant to the mercury. Remediation times used 14 days, 21 days and  42 days. The consentration of Mercury on the growth medium were 25 ppm, 50 ppm, 75 ppm, and 100 ppm. The result showed  that the time of maximum absorptions were at remediation times of  14 days by mercury acumulation of 70.6901 mg/kg DM (Dry Measure). This value indicated that A. spinosus L. is hyperacumulator to the mercury and it have a potential as phytoremediator on the area that contaminated by mercury.
KAJIAN PENGGUNAAN PENGKELAT UNTUK MENURUNKAN KANDUNGAN BESI DALAM MINYAK DAUN CENGKEH Saputri, Fatma; Razak, Abd. Rahman; Musafira, Musafira
Natural Science: Journal of Science and Technology Vol 3, No 2 (2014): Volume 3 Number 2 (August 2014)
Publisher : Univ. Tadulako

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Abstract

The investigation about study of the use of chelating agent to reduce iron content in clove oil has been done. This study aimed to determine the type of chelating agent that has the best ability in reducing the iron content in clove oil and to determine the optimum concentration of the chosen chelating agent in reducing the iron content in clove oil. Determination of iron content (Fe) was conducted using Atomic Absorption Spectrophotometry (AAS). The result obtained show that the type of chelating agent that has the best ability in reducing the iron content in clove oil was EDTA with 1,8% of the optimum concentration. It could reduced the iron content from 3,75 ppm to 0,625 ppm or approximately 83,333% of iron reduction.
ANALISIS KANDUNGAN TIMBAL PADA BUAH APEL (PYRUS MALUS.L)YANG DIPAJANGKAN DIPINGGIR JALANKOTA PALU MENGGUNAKAN METODE SPEKTROFOTOMETRISERAPAN ATOM Winarna, Winarna; Sikanna, Rismawaty; Musafira, Musafira
Natural Science: Journal of Science and Technology Vol 4, No 1 (2015): Volume 4 Number 1 (March 2015)
Publisher : Univ. Tadulako

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Abstract

Telah dilakukan penelitian tentang analisis kandungan timbal pada buah apel (Pyrus Malus L.)yang dipajangkan pada jl.Sisingamangaraja dan jl.Undata kota Palu menggunakan metode spektrofotometri serapan atom. Penelitian ini bertujuan untuk mengetahui kandungan logam timbal pada buah apel. Penelitian ini dilakukan dalam dua tahap masing-masing tahap destruksi sampel dan tahap penentuan kadar logam timbal dalam sampel. Konsentrasi timbal ditentukan menggunakan metode spektrofotometri serapan atom, hasil yang diperoleh menunjukkan kandungan timbal yang paling tinggi terdapat dijalan Sisingamangaraja dengan waktu pemaparan 12 hari, kandungan timbal yang diperoleh pada buah apel dengan kulit sebesar 0,178 ppm. Sedangkan dijalan undata untuk waktu pemaparan 12 hari, kandungan timbal yang diperoleh pada buah apel dengan kulit 0,174 ppm
PEMANFAATAN ARANG AKTIF KULIT PISANG KEPOK (MUSA NORMALIS) SEBAGAI ADSORBEN UNTUK MENURUNKAN ANGKA PEROKSIDA DAN ASAM LEMAK BEBAS MINYAK GORENG BEKAS Nasir, Neni Sri Wahyuni; Nurhaeni, Nurhaeni; Musafira, Musafira
Natural Science: Journal of Science and Technology Vol 3, No 1 (2014): Volume 3 Number 1 (March 2014)
Publisher : Univ. Tadulako

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Abstract

This research was about the useofactive charcoal of the banana peel (Musa normalis) as adsorbent to degrade peroxide and free faty acid of the used cooking oil. The aims of thisresearch was to determine the best rasio of active charcoal of the banana peel as adsorbent, and the best concentration of NaOH as activator to reduceperoxideand free faty acid of the used cooking oil. This research used 5 level oftreatmentswhich based on CRD, the ratio variation were 2.5, 5.0, 7.5, 10.0 and 12.5 % and the concentrations of NaOH variation were 0.125, 0.25, 0.5, 1 and 2 N. The result showed that the best ratio was occurred in the 10.0 % and the concentration of 1 N NaOH. This value indicated that the banana peel was an adsorben, which can be used inincrease quality of the used cooking oil.
PRODUKSI BIOGAS MENGGUNAKAN CAIRAN ISI RUMEN SAPI DENGAN LIMBAH CAIR TEMPE Ihsan, Arsul; Bahri, Syaiful; Musafira, Musafira
Natural Science: Journal of Science and Technology Vol 2, No 2 (2013): Volume 2 Number 2 (August 2013)
Publisher : Univ. Tadulako

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Abstract

This study aimed to determine the effect of ratio of liquid cow contents with tempeh wastewater and fermentation time on biogas production. The research was conducted using a completely randomized design  (CRD) with 7 point ratio variation cows rumen fluid contents with liquid wastewater tempe  (0:100, 5:95, 10:90, 15:85, 20:80, 25:75 and 100:) and fermentation time consisted of 12, 24, 36, 48, 60, 72, 84 and 96 hours. Each treatment was repeated twice. From the results obtained it turns out the highest content of biogas at a ratio of biogas yield of 2894,35 mg/L. Which produces biogas fermentation time the highest yield for 84 hours. Positive test the presence of mhetane in the biogas shown with the blue flame in the flame test.
PEMANFAATAN CAMPURAN LEMPUNG DAN BATU CADAS TERAKTIVASI ASAM SULFAT SEBAGAI ADSORBEN KALSIUM PADA AIR TANAH Alasa, Rini Prastika; Sikanna, Rismawaty; Musafira, Musafira
Natural Science: Journal of Science and Technology Vol 4, No 1 (2015): Volume 4 Number 1 (March 2015)
Publisher : Univ. Tadulako

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Abstract

Telah dilakukan penelitian tentang pemanfaatan campuran lempung dan batu cadas teraktivasi asam sulfat sebagai adsorben Kalsium pada air tanah.Penelitian ini bertujuan untuk mengetahui konsentrasi aktivator  yang terbaik dari beberapa rasio massa antara lempung dan batu cadas sebagai adsorben Kalsium yang terbaik. Penelitian ini dilakukan dalam dua tahap masing-masing tahap aktivasi campuran lempung dan batu cadas dengan asam sulfat dan tahap penentuan konsentrasi Kalsium pada air tanah. Konsentrasi Kalsium ditentukan menggunakan metode Spektrofotometri Serapan Atom, hasil yang diperoleh menunjukan konsentrasi aktivator terbaik yang digunakan yaitu asam sulfat 1 M dan rasio massa lempung dan batu cadas yaitu 3:1 yang menghasilkan  konsentrasi Kalsium yang teradsorpsi sebesar 85,635 ppm.
PEMANFAATAN LIMBAH SERBUK GERGAJI UNTUK PRODUKSI BIOETANOL MENGGUNAKAN SEL RAGI IMOBIL SECARA BERULANG Novianti, Novianti; Mappiratu, Mappiratu; Musafira, Musafira
Natural Science: Journal of Science and Technology Vol 2, No 3 (2013): Volume 2 Number 3 (December 2013)
Publisher : Univ. Tadulako

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Abstract

Study about the Utilization of sawdust waste as a subtrat in Bioethanol production by using repeated-immobilized yeast cells has been done. The aim of this research was to determine the best ratio of sulfuric acid to sawdust and to determine the optimum hydrolysis time, its in order to get the highest sugars content and alkohol content, and also to know the activity of the immobilized yeast cell for in alkohol production by repeated-use of immobilized cell. It was done by applying  9 levels of sulfuric acid (50%) ratio to sawdust (v/b) {i.e. 2 : 1 (A), 3 : 1 (B), 4 : 1 (C), 5 : 1 (D), 6 : 1 (E), 7 : 1 (F), 8 : 1 (G), 9 : 1 (H) and 10 : 1 (I)}, and 5 levels of hydrolysis time (i.e. 0,5; 1;  1,5;  2; and 2,5) . The result showed that the best ratio of sulfuric acid to sawdust was 5 : 1 (v/b), it could produce the sugars content for about 43,52%. While the best hydrolysis time was 2 hours and it could gave 43,72% of sugars content, when the fermentation proceses was done in 72 hours. The activity of immobilized yeast cell was decreased in repeated-used system, and there was no alcohol can  produced in the fourth time of immobilized yeast cell used.
Co-Authors Abd. Rahman Abd. Rahman Razak Arsul Ihsan Dewi Irtawati, Dewi Fatma Saputri Husain Sosidi Lewi Michal Pakiding Mappiratu Mappiratu Mohammad Mirzan, Mohammad Mudinillah, Adam Muhammad Irsyad Neni Sri Wahyuni Nasir Ni Ketut Sumarni Novianti Novianti Nurhaeni Nurhaeni Rini Prastika Alasa Winarna Winarna Wiwid Pratiwi, Wiwid