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All Journal CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Jurnal Kimia (Journal of Chemistry) Buletin Udayana Mengabdi Itepa : Jurnal Ilmu dan Teknologi Pangan Jurnal Veteriner Ecotrophic, Journal of Environmental Science Jurnal Media Sains

Ni G. A. M. Dwi Adhi Suastuti

Program Studi Kimia FMIPA Universitas Udayana, Bukit Jimbaran, Bali-Indonesia

Author-ID : 219089

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Electrical & Electronics Engineering Environmental Science Immunology & microbiology Medicine & Pharmacology Veterinary

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INOKULASI SUSPENSI AKTIF PADA BIOSISTEM VERTIKAL DENGAN TUMBUHAN RUMPUT GAJAH (Pennisetum purpureum) DALAM PENURUNAN KADAR METILEN BIRU, Cd DAN Cr TOTAL I W. B. Suyasa; N. G. A. M. D. A. Suastuti; I G. M. A. P. Raharja
Jurnal Kimia (Journal of Chemistry) Vol.12 No.2 Juli 2018
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Pada penelitian ini, dilakukan pengukuran kadar metilen biru, logam berat Cd, dan Cr total dalam air limbah artificial dengan menggunakan suspensi aktif pada biosistem vertikal menggunakan rumput gajah. Penelitian ini bertujuan untuk menentukan suspensi aktif terbaik yang ditumbuhkan dari sumber nutrien yang berbeda (nutrien NPK, pupuk NPK, dan molase), ditentukan efektivitas dan kapasitas biosistem, serta menentukan pengaruh jumlah waktu retensi hidrolik biosistem. Metode yang digunakan yaitu dengan mengalirkan limbah artificial secara kontinyu dalam bak biosistem yang diinokulasi suspensi aktif sebanyak 3 kali waktu retensi hidrolik. Metode analisis yang digunakan yaitu metode uji-t deskriptif. Hasil penelitian menunjukkan suspensi aktif terbaik diperoleh dari sampel tanah dengan sumber nutrien NPK dan pupuk NPK (pasaran) dengan pertumbuhan biomassa mencapai 1200 mg/L pada waktu 18 jam. Efektivitas biosistem vertikal tumbuhan rumput gajah dengan pupuk NPK dalam menurunkan kadar zat warna metilen biru, Cd, dan Cr berturut-turut sebesar 99,7587%, 99,8011%, dan 63,4927%. Kapasitas maksimum dalam menurunkan metilen biru, Cd, dan Cr total berturut-turut sebesar 2,7512 x103 mg/m3, 3,2220 x103 mg/m3, dan 2,2842 x103 mg/m3. Pengaruh jumlah waktu retensi hidrolik biosistem vertikal tumbuhan rumput gajah berdasarkan uji-t yaitu sudah mampu menurunkan kadar limbah metilen biru hingga ? 5 ppm dalam 1 kali waktu retensi hidrolik dan menurunkan kadar Cd ? 0,05 ppm dalam 3 kali waktu retensi hidrolik. Akan tetapi system ini tidak mampu menurunkan kadar Cr total ? 1 ppm. Kata kunci: biosistem, efektivitas, kapasitas, inokulasi, dan suspensi aktif

SINTESIS DAN KARAKTERISASI KOMPOSIT KAOLIN-Cr2O3 SERTA PEMANFAATANNYA SEBAGAI FOTOKATALIS DALAM MENDEGRADASI ZAT WARNA REMAZOL BRILLIANT ORANGE Ni Luh Eka Anggarayanti; I Nengah Simpen; Ni Gusti Ayu Made Dwi Adhi Suastuti
Jurnal Kimia (Journal of Chemistry) Vol. 11. No. 1 Januari 2017
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Komposit kaolin-Cr2O3 telah disintesis dan dikarakterisasi luas permukaan spesifik secara metode adsorpsi biru metilen, kristalinitas dan ukuran kristal secara X-RD dan gugus fungsi menggunakan FT-IR. Luas permukaan spesifik kaolin-Cr2O3 mengalami peningkatan sebesar 1,9822 m2/g dibandingkan dengan kaolin. Hasil X-RD diperoleh 2? spesifik dari Cr2O3 pada kaolin-Cr2O3 dengan pergeseran puncak 2? = 35,960 dan 41,900. Ukuran kristal kaolin dan kaolin-Cr2O3 dihitung menggunakan persamaan Scherrer dan dihasilkan ukuran kristal berturut-turut 32,63 nm dan 29,33 nm. Spektra inframerah menunjukkan adanya gugus spesifik dari Cr2O3 pada bilangan gelombang 653,87 cm-1 dan 613,36 cm-1. Kondisi optimum fotodegradasi zat warna remazol brilliant orange oleh 0,5 gram komposit kaolin-Cr2O3 terjadi pada menit ke-50 dengan konsentrasi zat warna 50 ppm dan persentase degradasi zat warna remazol brilliant orange 81,49 ± 0,57% lebih besar dibandingkan degradasi oleh Cr2O3 (11,97 ± 2,58%).

PENENTUAN STATUS MUTU AIR TUKAD YEH POH DENGAN METODE STORET Kadek Ari Esta; Putu Suarya; Ni G. A. M. Dwi Adhi Suastuti
Jurnal Kimia (Journal of Chemistry) Vol. 10, No. 1 Januari 2016
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

This paper reports the examination of Tukad Yeh Poh river in terms of several parameters namely temperature, total suspended solids (TSS), electric conductivity, pH, dissolve oxygen demand (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), phosphate, Pb, Cu, fecal coliform and total coliform. Water sampling was done at three sampling stations, namely the upstream, midstream and downstream. The results of the water sample measurements were compared to the environmental quality standards and standard criteria of environmental damage by Bali Governor Regulation No. 8 in 2007. The results showed the presence of some parameters whose values exceeded the threshold of class II water quality standard. Those parameters were TSS, BOD, COD, phosphate, Pb, and Cu. The STORET assessment results of Tukad Yeh Poh upstream has a total score of -27 that was categorized as being polluted, while in the middle and downstream, -37 and -49 respectively, which were categorized as heavily polluted.

EFEKTIVITAS PENURUNAN KADAR DODESIL BENZEN SULFONAT (DBS) DARI LIMBAH DETERJEN YANG DIOLAH DENGAN LUMPUR AKTIF Ni G. A. M. Dwi Adhi Suastuti
Jurnal Kimia (Journal of Chemistry) Vol. 4, No. 1 Januari 2010
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (98.616 KB)

This research aims to find out the decrease effectivity of dodecil benzene suphonate (DBS) concentrationfrom detergent waste treated using activated sludge. This research was carried out in two steps : the first step wasseeding process or preparation of the activated sludge. This was carried out on plastic container of 2 L. About 3 gsediment taken from Tukad Mati, 1 g NPK were mixed in a plastic container. The volume was made 1 L by addingaquadest, the mixture was aerated for 1 week. The second step was treatment of detergent waste which was carriedout using 2 plastic container of 5 L each. About 2 L detergent waste and 1 L activated sludge solution were mixed inthe plastic container. Mean while, 3 L detergent waste as a control were palced in the other plastic container. Bothcontainer were aerated for observation for decrease DBS concentration was carried out during 0, 3, 5, 7, 10 and 15days. DBS concentration was analyzed using Methylen blue method.The research result indicated that generally, there were decrease of BDS concentration both in control andtreated samples. The lowest DBS concentration was observed on day 15 both on control and treated samples withvalue, of 46.726 and 0.381 mg/L respectively. The decrease effectivity were 8.18% for control and 99,25% fortreated samples. From this research, it can be seen that treatment of waste using activated sludge was effective todecrease DBS concentration in detergent containing waste.

EFEKTIVITAS PENURUNAN KADAR SURFAKTAN LINIER ALKIL SULFONAT (LAS) DAN COD DARI LIMBAH CAIR DOMESTIK DENGAN METODE LUMPUR AKTIF Ni G. A. M Dwi Adhi Suastuti; I Nengah Simpen; Nanik Ayumi
Jurnal Kimia (Journal of Chemistry) Vol. 9, no. 1 Januari 2015
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

This study aimed to determine the ability of the activated sludge in decreasing the concentration of surfactant Linear Alkyl Sulfonate (LAS) and COD in domestic wastewater. The study was begun with the preparation of liquid medium, then mixed with sediment samples to produce the activated sludge. The treatment was carried out by adding the activated sludge to 1250 mL of domestic sewage in the aeration system running for 168 hours. Observations of the LAS and COD values were performed in a period of 6, 24, 72, 120, and 168 hours. The results showed that 5 g activated sludge were able to reduce the values of LAS and COD of 99.70 and 91.08% respectively in 168 hours. The most significant declining values of LAS and COD took place at 6 hours treatment. The rate of declining values of LAS and COD were 82.78 and 55%

HIDROKSIAPATIT TERMODIFIKASI Fe DAN APLIKASINYA UNTUK ADSORPSI ZAT WARNA CONGO RED Ni Komang Tria Paramita Septiari; I Nengah Simpen; Ni G. A. M. Dwi Adhi Suastuti
Jurnal Kimia (Journal of Chemistry) Vol. 11. No.2 Juli 2017
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Penelitian ini tentang adsorpsi zat warna congo red oleh hidroksiapatit hasil dekomposisi termal 400oC (TA1) dan hidroksiapatit hasil dekomposisi termal 400oC termodifikasi Fe (TA2). Penelitian ini meliputi ekstraksi hidroksiapatit dari tulang secara dekomposisi termal, penentuan jumlah situs aktif hidroksiapatit secara titrasi asam basa, luas permukaan secara metode sorpsi biru metilen, perbandingan unsur Ca/P dianalisis menggunakan laser induced breakdown spectroscopy(LIBS), kristalinitas secara difraksi sinar-X (XRD), penentuan waktu setimbang adsorpsi congo red, isoterm adsorpsi dan kapasitas adsorpsi congo red tanpa dan dengan penambahan H2O2 menggunakan spektrofotometer UV-Vis. Hasil penelitian menunjukkan bahwa jumlah situs aktif hidroksiapatit tertinggi ditunjukkan oleh TA1 yaitu 19,3493x1023 situs/gram dan luas permukaan tertinggi ditunjukkan oleh TA1 yaitu 26,5375 m2/g. Perbandingan unsur Ca/P yang dihasilkan oleh TA1 yaitu 1,6425 sesuai literatur (1,67). TA2 menghasilkan puncak XRD yang lebih mendekati puncak hidroksiapatit murni dengan intensitas 100 yang memiliki sudut 2 31,99o. Secara umum adsorpsi congo red tanpa dan dengan penambahan H2O2 terjadi peningkatan kapasitas teradsorpsi seiring dengan bertambahnya konsentrasi congo red dan lebih tinggi dibandingkan serbuk tulang kontrol (T0).

ANALISIS ASAM LEMAK RUMPUT LAUT Ulva reticulata Forsskal YANG DIPEROLEH DARI PANTAI SEGARA SANUR Ni Made Puspawati; Ni Gusti Ayu Made Dwi Suastuti; Dewa Ayu Indra Dewi
Jurnal Kimia (Journal of Chemistry) Vol. 5, No. 2 Juli 2011
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (216.564 KB)

Lipid content and fatty acid composition of seaweed Ulva reticulata Forsskal obtained from Segara Sanur Beach have been analyzed. Lipid was extracted from this seaweed using soxhlet extractor with chloroform:methanol (2:1) as solvent, while the composition of fatty acid was analysed using gas chromatrography accomplished by a mixture of 37 standard fatty acids (ST37AL85.D01). It was found that Ulva reticulata Forsskal contained (1,41±0,04)% (w/w) of crude lipids. The crude lipid was composed of 11 major fatty acids including pentadecanoic acid (12,08%), heptadecanoic acid (40,00%), cis-10-heptadecenoic acid (4,37%), oleic acid (1,77%), linolelaidic acid (4,31%), linoleic acid (13,01%), arachidic acid (4,71%), g-linolenic acid (2,27%), heneicosanoic acid (7,58%), cis-11,14-eicosedienoic acid (8,19%), and cis-8,11,14-eicosetrienoic acid (1,71%).

PEMBERIAN EKSTRAK DAUN SIRSAK (Annona muricuta) UNTUK MEMPERBAIKI KERUSAKAN SEL BETA PANKREAS MELALUI PENURUNAN KADAR GLUKOSA DARAH, ADVANCED GLYCATION AND PRODUCT DAN 8-HIDROKSI-2-DIOKSIGUANOSIN PADA TIKUS WISTAR HIPERGLIKEMIA Ni G. A. M. Dwi Adhi Suastuti; I G. A. Kunti Sri Panca Dewi; Ni Komang Ariati
Jurnal Kimia (Journal of Chemistry) Vol. 9, No. 2 Juli 2015
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

This research aimed to determine the effectivity of soursop leaf extract to repair beta pancreatic cells damaged in Wistar rats induced by alloxan. This experiment used randomized posttest-only control group design. In this experiment, 24 Wistar rats were used which divided into four groups, control group (K), and three treatment groups (P). P1 was the group tretment with a dose of 50 mg/kg bw/day, P2 with a dose of 100 mg/kg bw/day, and P3 was the group treatment with a dose of 150 mg/kg bw/day extract. All groups were induced by alloxan with a dose of 150 mg/kg bw to obtain condition of hyperglycemia. The results showed that blood glucose levels decreased after treatment with the extracts. Glucose levels in group K, P1, P2, and P3 were 208.0 mg/dL; 177.5mg/dL; 164.7 mg/L and 137.0 mg/dL respectively. After 2 weeks of treatment, the level of 8-OHdG and AGEs were also reduced. The lowest level was observed in P3 treatment which the level of 8-OHdG 1.664ng.mL and 0.033 mol/L for AGEs level. In conclusion the soursop leaf (Annona muricata) extract given at a dose of 150 mg/kg bw/day can improve beta pancreatic cells resulted from antioxidant activity content in the extract which function as antihyperglycemia. Based on GC-MS spectra analysis, the the soursop leaf (Annona muricata) extract consisted of caryophyllene, ethyl tetradekanoat, acid 2-cyclohexane-1-one, 4-hydroxy-3,5,6-trimethyl-4-(3-oxo-1-butenyl), hexa ethyl decanoate , phytol, thiazole-2,4 (3H, 5H) _dion, 5 benzilideno-3 [etifenilamino) metal], 9-octadecanoic acid, ethyl linoteat, ethyl oleate and ethyl octadecanoic.

EFEKTIVITAS LUMPUR AKTIF DALAM MENURUNKAN NILAI BOD (Biological Oxygen Demand) DAN COD (Chemical Oxygen Demand) PADA LIMBAH CAIR UPT LAB. ANALITIK UNIVERSITAS UDAYANA Yudith Rizkia Widyawati; Ida Bagus Putra Manuaba; Ni Gst Ayu Made Dwi Adhi Suastuti
Jurnal Kimia (Journal of Chemistry) Vol. 9, no. 1 Januari 2015
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

This research was conducted to determine the effectivity of activated sludge to decrease the Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) of waste water produced by the UPT. Lab Analitik Udayana University. This research used varied sediment masses and aeration times in order to determine the optimum conditions of activated sludge and the effectivity. Variation of the masses were 5, 10 and 20 grams and the aeration times were 1; 2; 3; 4 and 5 days. The result showed that both parameters studied decreased as a result of biological activity which oxidizes organic and inorganic compounds contained in the waste water. Five grams sediment within aeration time 4 days were the most optimum condition in decreasing the BOD (up to 75,25 %) and COD (up to 58,08 %). The results of One-way ANOVA showed there were a significant difference between BOD and COD before and after 3 , 4 and 5 days treatment.

PENENTUAN KADAR GLUKOSA DAN FRUKTOSA PADA MADU RANDU DAN MADU KELENGKENG DENGAN METODE KROMATOGRAFI CAIR KINERJA TINGGI K. Ratnayani; N. M. A. Dwi Adhi S.; I G. A. M. A. S. Gitadewi
Jurnal Kimia (Journal of Chemistry) Vol. 2, No. 2 Juli 2008
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (129.634 KB)

Honey is composed of reducing sugars i.e. glucose, fructose, and maltose. The concentration of sugar honeyis determined as total reducing sugars, so the concentration of each sugar which compose the honey is not known.The research aims to determine the concentrations of glucose and fructose of honey from different cotton tree honeyand longan honey HPLC using.The HPLC operational condition was as follows 80oC of column temperature and 1 mL/minutes of flowrate, using metacarb 87C column and deionized watr as eluent. The detection was carried out by using refractiveindex detector, where glucose and fructose can be separated at retention times of 6 and 7 minutes.The result of research showed that the concentration of glucose in cotton tree honey was 27.13 % and inlongan honey was 28.09 %. the concentration of fructose in cotton tree honey was 40.99 % and in longan honey was40.03 %. Thees results showed that the quality standard on the total concentration of reducing sugar (60 %) was metby both types of honey. The total concentration of reducing sugar of cotton tree honey was 68.12 % and of longanhoney was 68.12 %.

Co-Authors Amanda Awalia Ramadhani Anak Agung Istri Agung Mayun Laksmiwati Dewa Ayu Indra Dewi Dewa Ayu Windu Manik Anandagiri Dwi Kurnia Putra R G. A. Henny Kurnia Ratnasari I G. A. K. S. Dewi I G. A. M. A. S. Gitadewi I G. M. A. P. Raharja I Gede Andy Andika Parahita I Gusti Ayu Kunti Sri Panca Dewi I M. Siaka I Made Siaka I Made Sutha Negara I Nengah Simpen I Putu Bagus Mahendra I W BUDIARSA SUYASA I Wayan Suarsa I. A. Gede Widihati I. G. A. K. S. P. Dewi Ida Bagus Amertha Putra Manuaba Ida Bagus Putra Manuaba Irdhawati Irdhawati Iryanti Eka Suprihatin Kadek Ari Esta Ketut Ratnayani M A Yohanita Nirmalasari M. Arsa M. Krisensia Manuntun Manurung N. P. A. J. S. Putri Nadya Sarilla Agatha Nanik Ayumi Ni Komang Ariati Ni Komang Tria Paramita Septiari Ni LUH ARPIWI Ni Luh Eka Anggarayanti Ni Made Puspawati Ni Made Suaniti Ni Putu Ayu Krismayanti Ni Putu Ayu Susilawati Noviyanti, Ni Putu Pradnyadari, I Gusti Ayu Lia Putu Suarya R. M. Derisa Rosalia Gosal W. D. Sulihingtyas Wahyu Dwijani Sulihingtyas Wahyu Dwijani Sulihingtyas Welhelmus Djo, Yuliana Herman Yudith Rizkia Widyawati Yuliana Herman Welhelmus Djo

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