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All Journal CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) INDONESIAN JOURNAL OF LEGAL AND FORENSIC SCIENCES Jurnal Kimia (Journal of Chemistry) Buletin Udayana Mengabdi Jurnal Media Sains

I Wayan Suirta

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

Author-ID : 2921954

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Dentistry Education Electrical & Electronics Engineering Immunology & microbiology Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology

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ISOLASI DAN IDENTIFIKASI SENYAWA FLAVONOID PADA DAUN SEMBUKAN (Paederia foetida L) SERTA UJI AKTIVITASNYA SEBAGAI ANTIOKSIDAN Minanti Arna Ekawati; I Wayan Suirta; Sri Rahayu Santi
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

Sembukan adalah tumbuhan liar yang batang dan daunnya telah dimanfaatkan sebagai obat tradisional karena terdapat metabolit sekunder seperti flavonoid, alkaloid, minyak atsiri, dan steroid. Penelitian ini bertujuan untuk mengidentifikasi golongan senyawa flavonoid serta menguji aktivitas antioksidannya. Hasil maserasi 1,2 kg daun sembukan kering menghasilkan ekstrak kental etil asetat 0,34 g, n-butanol 3,12 g, dan air 26,85 g yang positif flavonoid. Pemisahan 3,12 g ekstrak n-butanol dengan kromatografi lapis tipis (KLT) preparatif dengan fase gerak n-butanol : asam asetat glasial : akuades (BAA) menghasilkan 5 fraksi dan 2 fraksi diantaranya yaitu fraksi F2 dan F4 positif flavonoid. Hasil analisis Fraksi F2 dengan FTIR menunjukkan bahwa isolat memiliki gugus fungsi C-H aromatik dan C=C aromatik, OH, C=O, CH alifatik, C-O alkohol, dan C-O eter, sedangkan analisis dengan spektrofotometer UV-Vis menunjukkan isolat menyerap pada panjang gelombang 315,60 nm (bahu) dan 283,80 nm sehingga diduga isolat adalah senyawa flavonoid golongan flavanon dan mempunyai gugus hidroksi pada atom C-3, C-3’, dan C4’. Uji aktivitas antioksidan menunjukkan bahwa isolat dapat menangkap radikal bebas 1,1’-diphenyl-1-picrylhydrazyl (DPPH) sebesar 21,59 % pada konsentrasi 50 ppm.

IDENTIFIKASI SERTA UJI AKTIVITAS ANTIBAKTERI SENYAWA FLAVONOID EKSTRAK DAUN SRIKAYA (Annona squamosa Linn) I M. D. Swantara; P. A. Damayanti; I W. Suirta
Jurnal Kimia (Journal of Chemistry) Vol. 16, No.1, Januari 2022
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 | DOI: 10.24843/JCHEM.2022.v16.i01.p06

Salah satu tanaman yang memiliki kandungan senyawa flavonoid yang sering dimanfaatkan sebagai obat tradisional di Indonesia adalah tanaman srikaya (Annona squamosa Linn). Isolasi, identifikasi serta uji aktivitas antibakteri senyawa flavonoid dari ekstrak daun srikaya terhadap bakteri Staphylococcus aureus dan Escherichia coli dengan metode sumur difusi telah dilakukan pada penelitian ini. Serbuk daun srikaya dengan kadar air 8% dimaserasi menggunakan metanol lalu dievaporasi hingga diperoleh ekstrak kental 113,85 g. Ekstrak tersebut dipartisi dengan pelarut n-heksana, etil asetat dan n-butanol yang menghasilkan 3,43 gram ekstrak n-heksana, 2,30 g ekstrak etil asetat dan 3,85 g ekstrak n-butanol. Uji fitokimia menunjukkan bahwa ekstrak etil asetat positif mengandung flavonoid dengan kadar total flavonoid terbanyak 26.117,4 mg QE/100 g. Isolat F5 hasil pemisahan serta pemurnian dari ekstrak etil asetat, positif mengandung flavonoid dan relatif murni secara kromatografi lapis tipis. Identifikasi isolat F5 dengan spektrofotometer UV-Visible dan Fourier-Transform Infrared (FTIR) menunjukkan dua pita serapan yaitu pada ? maks 376,40 nm (pita I) dan 256,40 nm (pita II) serta mengandung dugaan gugus fungsi yang terdapat dalam senyawa flavonoid yaitu OH, C=C aromatik, C-H alifatik, C-H aromatik, C-O eter dan C-O alkohol. Isolat tersebut mampu menghambat pertumbuhan bakteri Staphylococcus aureus dan Escherichia coli pada konsentrasi 15% (b/v) dengan diameter hambat secara berturut-turut sebesar 7,75 mm dan 7,25 mm. Hasil ini menunjukkan bahwa senyawa flavonoid hasil isolasi dari ekstrak daun srikaya diduga adalah 5,3’,4’-trihidroksiflavonol dan mempunyai aktivitas antibakteri dengan daya hambat sedang. Kata kunci: antibakteri, daun srikaya (Annona squamosa Linn), isolasi flavonoid, 5,3’,4’-trihidroksiflavonol. One of the plants containing flavonoid compounds, commonly used as traditional medicine in Indonesia, is srikaya (Annona squamosa Linn). Isolation, identification and antibacterial activity test of flavonoid compounds from srikaya leaf extract against Staphylococcus aureus and Escherichia coli by using diffusion well method have been done in this research. Srikaya leaf powder with 8% moisture content was macerated with methanol then evaporated until concentrated extract of 113.85 grams was obtained. The extract was partitioned with n-hexane, ethyl acetate and n-butanol solvents and produced 3.43 grams of n-hexane extract, 2.30 grams of ethyl acetate extract and 3.85 grams of n-butanol extract. The phytochemical test showed that the ethyl acetate extract positively contained flavonoids with the highest total flavonoid levels of 26,117.4 mg QE/100 grams. Isolate F5, as the result of separation and purification of ethyl acetate extract, was positive containing flavonoids and resulting relatively pure isolate, analyzed by thin layer chromatography. Identification of isolate F5 using spectrophotometer UV-Visible and Fourier-Transform Infrared (FTIR) showed two absorption bands at ? max of 376.40 nm (band I) and 256.40 nm (band II) as well as contained functional groups of flavonoid which was OH, C=C aromatic, C-H aliphatic, C-H aromatic, C-O ether and C-O alcohol. These isolates were able to inhibit the growth of Staphylococcus aureus and Escherichia coli at the concentration of 15% (w/v) with inhibitory diameter of 7.75 and 7.25 mm, respectively. These results indicated that flavonoids isolated from srikaya leaf extract were suspected 5,3’,4’-trihydroxyflavonol and had antibacterial activity with moderate inhibitory ability. Keywords: antibacterial, flavonoid isolation, srikaya leaf (Annona squamosa Linn),5,3’,4'-trihydroxyflavonol.

SINTESIS SENYAWA orto-FENILAZO-2-NAFTOL SEBAGAI INDIKATOR DALAM TITRASI I W. Suirta
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 (668.165 KB)

Synthesis of o-fenilazo-2-naphtol used as indicator in titration has been conducted in this research. Thesynthesis was carried out by coupling of diazonium chloride salt with 2-naphtol, and aniline. The product wascharacterized using spectroscopy techniques (IR, 1HNMR, and MS), while the pKHIn was determined using UV-visspectrometer. The application of the product as indicator in titration was compared to methyl-orange.The synthesis gave a red crystal with 62.51 % yield. Infra red spectra analysis showed the presence ofcharacteristic functional groups such as–OH, CH-aromatic, C=C, N=N, CN, CO, and a peak indicated substituents atortho position. 1HNMR showed three separated peaks. Mass spectra gave molecular ion peak (M+) at m/z 248. Thered crystal obtained melted at 128-131oC. Based on spectroscopy analysis and melting point, it can be concludedthat the product was o-fenilazo-2-naphtol. The product had a pKHin of 3.16, therefore it can be used as indicator foracid-base titration which showed equivalent point at pH 5.

IDENTIFIKASI SENYAWA TOKSIK EKSTRAK KLOROFORM KULIT BIJI NYAMPLUNG (Calophyllum inophyllum L.) Sri Rahayu Santi; I Wayan Suirta; Kadek Agus Andika Pratama
Jurnal Kimia (Journal of Chemistry) Vol. 6, No. 2 Juli 2012
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

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Identification of active toxic compounds from chloroform extract Nyamplung skin bean (Calophyllum inophyllum L) have been conducted. As much as 2,85 g n-hexane extract, 7,42 chloroform extract, and 4,71 water extract were resulted from 1 kg Nyamplung skin bean. Separation of 2 g chloroform extract using column chromatography (stationary phase: silica gel 60 and mobile phase chloroform-methanol 9,5:0,5) resulted in four fraction with yellowish fraction (0,473 g) as the most toxic fraction (LC50 8,241 ppm). Identification using GC-MS showed that the isolate was hexadecanoic acid (21,02%), 8-octadecenoic acid (59,55%), and oktadecanoic acid(19,43%).

PREPARASI BIODIESEL DARI MINYAK JELANTAH KELAPA SAWIT I W. Suirta
Jurnal Kimia (Journal of Chemistry) Vol. 3, No. 1 Januari 2009
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

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Synthesis of biodiesel from used cooking oil was carried out in two step reactions i.e esterification andtransesterification. The biodiesel obtained was analysed using gas chromatography and mass spectrometer (GC-MS).The quality was determined by comparing its physico chemical properties and compared to the Jerman Standard DINV 51606.The result of GC-MS showed 6 peaks coresponding to six methyl ester(biodiesel): methyl myristate, methylpalmitate, methyl linoleate, methyl oleate, methyl stearat and methyl arachydate. The biodiesel obtained has a densityof (0,8976±0,0003 g/mL), viscosity of (4,53±0,0872 mm/s), acid value of (0,4238±0,0397 mg KOH/g, and iodnumber of (9,3354±0,0288 g iod/100 g sample). There properties were in a good agreement with the standard JermanDIN 51606.

SINTESIS POLIEUGENOL DARI EUGENOL DENGAN KATALIS ASAM NITRAT PEKAT DAN MEDIA NATRIUM KLORIDA I Wayan Suirta; Ni Luh Rustini; Taka Iqbal Prakasa
Jurnal Kimia (Journal of Chemistry) Vol. 6, No. 1 Januari 2012
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

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Polyeugenol has been synthesized from eugenol by using nitric acid as a catalyst and sodium chloride medium. Eugenol was obtained from clove oil which was previously redestill. The synthesis was carried but by using nitric acid catalyst on sodium chloride medium and without sodium chloride. The ratio of nitric acid to eugenol as 4 : 1. Polymerization result was analyzed by using infrared spectroscopy. Its rendement and its characteristics were also.The yield with sodium chloride medium was 42,97 %, a reddish black gel with melting point of 114,6-150oC. The yield without sodium chloride medium was 47,77 %, a solid brick red with melting point of 87-89oC. The infrared spectroscopy result showed that on the polymerization with medium was unsuccessful because the still CH=CH2 group absorption at 995.27 cm-1 and C=C at 1635,89 cm-1 were still existed, whereas for the polymerization without medium, both absorptions were absent.

PEMANFAATAN KALENG ALUMINIUM BEKAS DALAM MENANGANI PENCEMARAN AIR WIWIK SUSANAH RITA; I.A. RAKA ASTITI ASIH; WAHYU DWIDJANI S; I W. SUIRTA; I G.A. KUNTI SRI PANCA DEWI
Buletin Udayana Mengabdi Vol 7 No 2 (2008): Volume 7 No.2 – September 2008
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

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ABSTRACT Community service by giving a lecture and practical work with a title: “Utilizing of Aluminum Cans used for Water Purification (Pemanfaatan Kaleng Aluminium Bekas dalam Upaya Penjernihan Air)” was be held on Wednesday, 22nd of August 2007. The participants of this activity were about 45 of the Third degree Students of SMAN Abiansemal Badung. The aim of the activity was to give information that aluminum cans can be recycled into alum (tawas), where it can be used for water purification. The result of this activity indicated that the knowledge of the students have broaden. This was showed by Their enthusiastic to give some questions and ideas. They paid attention about the environmental cleanliness, so this activity can help them to solve many environmental problems and motivate them to run a private enterprise.

PEMANFAATAN VCO DAN EKSTRAK BUNGA KENANGA DALAM PEMBUATAN SABUN ANTIBAKTERI DI DESA ABABI KECAMATAN ABANG KARANGASEM W.S. Rita; I.W. Suirta; E. Sahara; I.A.R.A. Asih
Buletin Udayana Mengabdi Vol 18 No 2 (2019): Buletin Udayana Mengabdi
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Virgin Coconut Oil (VCO) dan ekstrak bunga kenanga dapat digunakan sebagai alternatif pengganti antibakteri sintetik dalam pembuatan sabun mandi padat transparan. Pengabdian ini bertujuan untuk membuat sabun antibakteri dengan memanfaatkan bahan aktif bakteri dari VCO dan ekstrak bunga kenanga. Sabun dibuat dengan mereaksikan VCO, minyak kelapa, asam sterat dengan suatu basa (NaOH), selanjutnya ditambahkan bahan-bahan lain seperti sukrosa dan gliserin untuk membuat sabun yang transaparan. Ekstrak kenanga ditambahkan juga sebagai bahan aktif antibakteri dan sebagai pewangi. Produk yang dihasilkan beruba sabun transparan antibakteri yang mana sabun tersebut telah memenuhi Standar Nasional Indonesia (SNI). Masyarakat yang ditargetkan pada pelatihan pembuatan sabun adalah PKK dan Kelompok Perempuan Petani di Desa Ababi, Kecamatan Abang, Kabupaten Karangasem. Hasil pelatihan menunjukkan bahwa ada peningkatan wawasan peserta tentang sabun antibakteri dan cara membuatnya. Kata kunci : Sabun, Antibakteri, Bunga Kenanga, VCO

STUDI REPRODUSIBILITAS POLA PUNCAK KROMATOGRAM AKIBAT PENGARUH VARIASI PH DAN LAMA WAKTU EKSTRAKSI DENGAN MENGGUNAKAN CAPSUL D SEBAGAI MODEL Dewa Ken Budiputra; I Wayan Suirta; I Wayan Sumarjaya
Indonesian Journal of Legal and Forensic Sciences (IJLFS) Vol 4 (2014): Indonesian Journal of Legal and Forensic Sciences
Publisher : Penerbit, sejak 2012 : Asosiasi Ilmu Forensik Indonesia dan UPT Lab. Forensik Sain dan Kriminilogi - Universitas Udayana

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The TLC chromatogram peak pattern reproducibility of the contained D capsule was carried out. The pH and time extraction was varied. The extracted substances were spotted on the Al TLC SiGF254 plate, than it was eluted with TB mobile phase (cyclohexane: toluene: diethylamine 75:15:10 v/v). The extraction methods were liquid-liquid extraction with extraction time variation (15 minute, 30 minute, 45 minute and 60 minute) and solid phase extraction with pH variation (pH 10, pH 11 and pH 12). The extraction time influenced the TLC peak pattern. The substances were optimal extracted after 30 minutes extraction. There was no variation in the peak pattern after 30 minutes extraction. The pH value variation did not affected the peak pattern reproducibility.

UJI AKTIVITAS ANTIINFLAMASI EXSTRAK ETANOL RIMPANG ANDONG MERAH (Cordyline fruticosa (L.) A Chev) PADA UDEMA KAKI TIKUS WISTAR YANG DIINDUKSI KARAGENAN N. W. Bogoriani; E. P. Siregar; I W. Suirta
Jurnal Kimia (Journal of Chemistry) Vol. 16, No.2, Juli 2022
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 | DOI: 10.24843/JCHEM.2022.v16.i02.p11

Rimpang andong merah (Cordyline fruticosa) ialah tumbuhan obat yang mengandung saponin yang dikenal selaku antiinflamasi. Tujuan riset ini adalah menguji aktivitas antiinflamasi ekstrak etanol rimpang andong merah. Analisis fitokimia dilakukan secara kualitatif dengan uji fitokimia menggunakan reagen pereaksi warna sedangkan uji aktivitas antiinflamasi dengan menggunakan 25 ekor tikus Wistar yang diinduksi dengan karagenan kemudian dikelompokkan menjadi 5 yaitu; (P1) kontrol negatif, (P2) kontrol positif, serta (P3, P4, dan P5) kelompok ekstrak uji dengan dosis 125, 250, dan 500 mg/kg BB. Hasil uji fitokimia menunjukkan ekstrak tersebut terdapat senyawa golongan alkaloid, steroid, fenolik, flavonoid, dan saponin. Dari hasil uji aktivitas antiinflamasi, pemberian ekstrak dosis 125 mg/kg BB memberikan hambatan inflamasi sebesar 65,876% sebaliknya dosis 250 mg/kg BB dapat menghambat inflamasi sebesar 59,994% dan dosis 500 mg/kg BB memberikan hambatan inflamasi sebesar 73,908% selama 360 menit pengamatan. Hasil uji analisis probit memberikan nilai ED50 sebesar 158,48 mg/kg BB. Kata kunci: aktivitas antiinflamasi, andong merah, ekstrak, rimpang. ABSTRACT Rhizome of red andong (Cordyline fruticosa (L.) A. Chev) is a medicinal plant that contains saponins known to be anti-inflammatory. The research aimed to assess the anti-inflammatory activity of the rhizome ethanol extract of red andong. Phytochemical analysis was done qualitatively by using phytochemical reagents. Anti-inflammatory activity was evaluated using 25 Sprague Dawley male rats which had been divided into five groups: negative control (P1), positive control (P2), and group P3, P4, and P5 given extract at doses of 125; 250; and 500 mg/kgBW, respectively. A phytochemical study revealed that the rhizome ethanol extract consisted of alkaloids, steroids, phenolic, flavonoids and saponins compounds. The anti-inflammatory activity test showed that the administration of the extract at a dose of 125 mg/kgBW resulted in an inflammatory inhibition of using 65,876%, on the other hand, a dose of 250 mg/kgBW could inhibit inflammation by 59,994%, and a dose of 500 mg/kgBW had the inflammatory inhibition of 3,908% for 360 minutes of observation. The results of the probit analysis gave an ED50 value of 158,48 mg/kgBW. Keywords: anti-inflammatory activity, extract, rhizome, red andong.

Co-Authors Ali Sabikin Anak Agung Sagung Krisna Darmawati Dewa Ken Budiputra Dewi Novita Hardaningsih E. P. Siregar E. Sahara I Gede Tangkas Mei Yasa I Gusti Agung Gede Bawa I Gusti Ayu Kunti Sri Panca Dewi I K. G. H. Subawa I Made Dira Swantara I Made Oka Adi Parwata I Putu Eka Suwita Hegara I Wayan Sumarjaya I. A. Gede Widihati I. A. R. A. Asih I. A. R. Astiti Asih I.A.R.A. Asih Ida Bagus Putra Manuaba Kadek Agus Andika Pratama Ketut Gede Dharma Putra Ketut Ratnayani Komang Ardipa Saputra Lestari Lestari Made Arsa Minanti Arna Ekawati N. K. Gumiati N. W. Bogoriani Nasution, Dina Munawaroh Ni Komang Ariati Ni Luh Putu Kartika Mardiani Ni Luh Putu Mega Wahyuni Ni Luh Putu Putri Setianingsih Ni Luh Rustini Ni Made Puspawati P. A. Damayanti Putu Prisanti Putri Utami Putu Suarya S.R. Santi Saeful Bahri Sri Rahayu Santi Taka Iqbal Prakasa W.S. Rita WAHYU DWIDJANI S Wasudewa, Kresna Murti WIWIK SUSANAH RITA

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