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ANALISIS KUALITAS AIR SUNGAI TANOYAN DI KOTA KOTAMOBAGU PROVINSI SULAWESI UTARA Abidjulu, Jemmy
CHEMISTRY PROGRESS Vol 1, No 2 (2008)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/cp.1.2.2008.4960

Abstract

A research has been done about the quality of water from Tonayan river in Kotamobagu city Province ofNorth Sulawesi based on its physics and chemical parameter. The sample was taken on three spot withduplo methods. The first sample was undertaken on the upperstream at Tanoyan village, second wasundertaken on the downstream at Mopait village and the third was undertaken at Kopandakan village.Analysis of water using Turbiditimetry, pH-metri, EDTA, and Spectrophotometer methods. The resultthat had been obtained was compared with the standart of pure water class II based on the governmentrules No.82 year 2001. Based on the research result, the quality of river water at the three spot are: notaste, no flavor, turbidymetry ( 3,1-9 NTU), pH (6,5-7,9), saturated (440-560 mg/1), chloride (0,02-21,02mg/L), ferrum (<0,01-0,036 mg/L), mangannese (0,02-0,071 mg/L), nitrat (<0,5 mg/L), seng (0,02-0,215mg/L), cyanide (0,11-0,01 mg/L), dan sulphat (2-71 mg/L). This research conclude that water inTonayan river Kotamobagu city Province of North Sulawesi for all parameters are in standart quality,accept saturated at first spot and zinc at the third spot Keywords: Quality, water, river, physics parameter, chemical parameter
PENGARUH SUHU TERHADAP STABILITAS SERTA PENETAPAN KADAR TABLET FUROSEMIDA MENGGUNAKAN SPEKTROFOTOMETER UV-VIS Waney, Rekanita; citraningtyas, Gayatri; Abidjulu, Jemmy
PHARMACON Vol 1, No 2 (2012)
Publisher : UNIVERSITAS SAM RATULANGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/pha.1.2012.504

Abstract

Stability is the ability of product to maintain its nature and characteristics similar to itsorigin during storage and use period. Furosemide is one of drugs product that works as diuretic.The aim of this research was to study the effect of temperature on furosemide stability. Themethod using in this research is factorial Complete Random design. There are two factors in thisresearch,factor A is temperature (40oC, 50 oC, and 60 oC) and factor B are period (60, 120 and180 minutes). There are three samples in this research. Analysis of furosemide content usingSpectrophotometer UV-Vis at λ = 271 nm. Obtained data were analyzed using spss ver. 20. Thedifferences between variable were statistical analyzed. The result shows that the decreasing offurosemide in tablet starts at temperature 50°Cafter60minutes heating for sample A and C.Sample B decrease at temperature 50°C after 120 minutes heating.Keywords: stability, furosemide, spectrophotometry UV-Vis
Uji daya hambat ekstrak daun mengkudu (Morinda citrifolia L.) terhadap pertumbuhan Candida albicans secara in vitro Simatupang, Olivia C.; Abidjulu, Jemmy; Siagian, Krista V.
e-GiGi Vol 5, No 1 (2017): e-GiGi
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35790/eg.5.1.2017.14701

Abstract

Abstract: Candida albicans is a normal flora of the mouth, respiratory tract, gastrointestinal tract and the female genital but it becomes pathogen if there is a predisposing factor. Approximately 85-95% of oral candida infections are caused by C. albicans that is usually attached to the labial mucosa, buccal mucosa, the dorsal parts of the tongue and palate. Noni (Morinda citrifolia L.) is already known as a medical plant; one of it parts that has a medicinal effect is the leaf that contains anthraquinon as an antifungal. This study was aimed to determine the effect of noni leaf extract to the growth of C. albicans. This was a true experimental in vitro study with the post test only group design. The Kirby-Bauer method with filter paper was used to evaluate the sensitivity of C. albicans to mengkudu leaf extract. Leaves samples were extracted by using maceration process with ethanol 96%. C. albicans obtained from the pure stock of Laboratory of Microbiology Pharmacy Faculty of Math and Science, University of Sam Ratulangi. The results showed that the inhibition zone diameter of noni leaf extract on the growth of C. albicans was 16 mm (strong inhibition category). Conclusion: Noni leaf extract (Morinda citrifolia L.) had an inhibitory effect on Candida albicans.Keywords: Mengkudu leaf (Morinda citrifolia L.), Candida albicans, inhibition zone Abstrak: Candida albicans merupakan anggota flora normal rongga mulut, saluran pernafasan, saluran pencernaan, dan genital wanita namun dapat menjadi patogen jika terdapat faktor predisposisi. Sekitar 85-95% infeksi kandidiasis oral disebabkan oleh C albicans yang biasanya melekat pada mukosa labial, mukosa bukal, dorsum lidah dan palatum. Tanaman mengkudu (Morinda citrifolia L.) telah dikenal sebagai tumbuhan obat. Salah satu bagian tanaman mengkudu yang memiliki efek obat ialah daunnya karena adanya kandungan antrakuinon yang bersifat antijamur. Penelitian ini bertujuan untuk mengetahui efek ekstrak daun mengkudu terhadap pertumbuhan C. albicans. Jenis penelitian ini ialah eksperimental laboratorik secara in vitro dengan post test only group design. Pengujian menggunakan metode Kirby-Bauer berbahan kertas saring. Sampel daun diekstraksi dengan proses maserasi menggunakan etanol 96%. Jamur C. albicans diambil dari stok biakan jamur murni Laboratorium Farmasi FMIPA Universitas Sam Ratulangi Manado. Hasil penelitian mendapatkan diameter zona hambat ekstrak daun mengkudu terhadap pertumbuhan C. albicans 16 mm yang tergolong kriteria zona hambat kuat. Simpulan: Ekstrak daun mengkudu (Morinda citrifolia L.) mempunyai daya hambat terhadap jamur Candida albicans.Kata kunci: daun mengkudu, Candida albicans, zona hambat
GAMBARAN KEBOCORAN TEPI TUMPATAN PASCA RESTORASI RESIN KOMPOSIT PADA MAHASISWA PROGRAM STUDI KEDOKTERAN GIGI ANGKATAN 2005-2007 Mukuan, Theo; Abidjulu, Jemmy; Wicaksono, Dinar A.
e-GiGi Vol 1, No 2 (2013): e-GiGi Juli-Desember 2013
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35790/eg.1.2.2013.2625

Abstract

Abstract: Composite resin is one of the restoration material which has the advantage in aesthetic due to its colour. This make the composite resin as a material of choice, unfortunately most of patients who have received composite resin treatment doesn’t have a proper careness to its own restoration after treatment. Aim: to study how many people who use composite resin as restoration material and to study if the restoration has any leakage after treatment. Results: the study showed that women have more composite resin restoration than men. The leakage occurred to three different subject in this research which is the most leakage happened to 2007’s student, followed by 2006’s and 2005’s. Class one Black classification is the most restoration to be found in this study followed by class 4, class 5, class 3, and class 2. The leakage which found in this study mostly occurred to molar restorations, followed by premolars while incicivus was found to be the least. Keywords: resin, composite, leakage, restoration.   Abstrak: Resin komposit merupakan salah satu jenis bahan tumpatan yang memiliki keunggulan dalam bidang estetik karena merupakan bahan tumpatan yang sewarna dengan gigi. Hal ini menjadikan resin komposit sebagai bahan pilihan restorasi, namun banyak pasien yang telah mendapatkan perawatan restorasi resin komposit kurang memperhatikan tumpatan pasca restorasi tersebut. Tujuan: penelitian ini bertujuan untuk mengetahui gambaran penggunaan resin komposit sebagai bahan tumpatan gigi pada restorasi kavitas dan mengetahui apakah telah terjadi kebocoran tepi tumpatan resin komposit pada perawatan restorasi kavitas. Hasil penelitian: menunjukkan distribusi penggunaan komposit lebih banyak pada perempuan dibandingkan laki-laki. Terjadi kebocoran tumpatan pada subjek penelitian dari tiga angkatan yang berbeda yaitu terbanyak pada mahasiswa angkatan 2007 kemudian 2006 dan 2005. Tumpatan kavitas kelas I merupakan tumpatan yang paling banyak diikuti kelas 4, kelas 5, kelas 3, dan kelas 2. Kebocoran gigi yang ditemukan pada penelitian ini terjadi paling banyak pada gigi molar kemudian premolar sedangkan insisivus paling sedikit. Kata kunci: resin, komposit, kebocoran, restorasi.
Uji daya hambat ekstrak buah pala (myristica fragrans Houtt) terhadap bakteri penyebab periodontitis porphyromonas gingivalis secara in vitro Kaawoan, Pricillia T.; Abidjulu, Jemmy; Siagian, Krista V.
e-GiGi Vol 4, No 2 (2016): e-GiGi
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35790/eg.4.2.2016.13504

Abstract

Abstract: Periodontal disease is preceded by a buildup of plaque that contains a collection of bacteria. The most common bacteria found in plaques are Porphyromonas gingivalis that cause periodontitis. There are several ways to treat periodontitis inter alia the usage of natural materials. Nutmeg (Myristica fragrans Houtt) contains volatile oil, saponins, and alkaloids known as antibacterials. This study aimed to investigate the inhibitory effect of nutmeg extract on Porphyromonas gingivalis. This was an experimental laboratory study in vitro with a post test only control group design. The testing method used in this study was a modified method of Kirby-bauer. Nutmeg was extracted by using maceration method with ethanol 96%. Porphyromonas gingivalis bacteria were ordered from University of Hasanuddin Makassar and then were rejuvenated in the Laboratory of Microbiology Pharmacy FMIPA University of Sam Ratulangi Manado. The results showed that the average inhibitory zone of nutmeg extract was 13,5 mm. Conclusion: Nutmeg (Myristica fragrans Houtt) extract had an inhibitory effect on the Porphyromonas gingivalis bacteria.Keywords: nutmeg (Myristica fragrans Houtt), inhibition zone, periodontitis, Porphyromonas gingivalisAbstrak: Penyakit periodontal berawal dari penumpukan plak yang mengandung kumpulan bakteri. Bakteri yang paling banyak ditemukan yaitu bakteri Porphyromonas gingivalis yang menyebabkan penyakit periodontitis. Terdapat beberapa cara untuk mengobati periodontitis, salah satunya dengan penggunaan bahan alami. Pala (Myristica fragrans Houtt) memiliki kandungan minyak atsiri, saponin, dan alkaloida yang diketahui berefek antibakteri. Penelitian ini bertujuan untuk mengetahui adanya daya hambat ekstrak buah pala terhadap bakteri penyebab periodontitis Porphyromonas gingivalis. Jenis penelitian ini ialah eksperimental laboratorik secara in vitro dengan post test only control group design. Metode pengujian yang digunakan yaitu modifikasi Kirby-bauer menggunakan sumuran. Sampel buah pala diekstraksi dengan metode maserasi menggunakan pelarut etanol 96%. Bakteri Porphyromonas gingivalis yang digunakan dalam penelitian ini dikirim dari Universitas Hasanuddin Makassar yang telah diremajakan di Laboratorium Mikrobiologi Farmasi FMIPA Universitas Sam Ratulangi Manado. Hasil penelitian mendapatkan zona hambat ekstrak buah pala sebesar 13,5 mm. Simpulan: Ekstrak buah pala (Myristica fragrans Houtt) mempunyai daya hambat terhadap bakteri penyebab periodontitis Porphyromonas gingivalis.Kata kunci: pala (Myristica fragrans Houtt), zona hambat, periodontitis, porphyromonas gingivalis
UJI TOTAL FLAVONOID PADA BEBERAPA TANAMAN OBAT TRADISONAL DI DESA WAITINA KECAMATAN MANGOLI TIMUR KABUPATEN KEPULAUAN SULA PROVINSI MALUKU UTARA Lumbessy, Mirna; Abidjulu, Jemmy; Paendong, Jessy J. E.
Jurnal MIPA Vol 2, No 1 (2013)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jm.2.1.2013.766

Abstract

Penelitian ini bertujuan untuk menguji total kandungan flavonoid pada beberapa tanaman obat tradisional. Penentuan kandungan total flavonoid dilakukan dengan menggunakan metode etanol ? HCl, sedangkan analisis flavonoid menggunakan Metode spektrofotometeyr UV-VIS . Hasil yang diperoleh menunjukan kandungan total flavonoid pada tanaman ketepeng cina (Cassia alata L) sebesar 26.8633 mg/mL , iler (Coleus scutellariodes L Benth) sebesar 14.425 mg/mL , rumput teki (Cyperus rotundus L) sebesar 6.505 mg/mL, pegagan (Centella asiatica) sebesar 3.816 mg/mL, rumput mutiara (Oldenlandia corymbosa) sebesar 2.686 mg/mL dan waru (Hibiscus tiliaceus L) sebesar 1.425 mg/mL. Kandungan total flavonoid tertinggi terdapat pada daun ketepeng sebesar 26.863 mg/mL, sedangkan kandungan flavonoid terendah terdapat pada daun waru sebesar 1.425 mg/mL. Analisis flavonoid dilakukan pada ? = 200 - 400 nm dan ?maks = 205 nm. Hasil analisis flavonoid menunjukkan bahwa [A] daun iler panjang gelombang maksimum yaitu 205 nm dan (pita I) 300 nm dan (pita II) 250 nm dengan absorbansi 0.242 positif mengandung flavonol. [B] daun rumput mutiara panjang gelombang maksimum 205 nm dan dapat dilihat pada (pita I) 305 nm dan (pita II) 260 nm dengan absorbansi 0.023 positif mengandung flavonol. [C]) daun ketepeng panjang gelombang maksimum 205 nm dan dapat dilihat pada (pita I) 330 nm dan (pita II) 276 nm dengan absorbansi 0.167 positif mengandung flavonol. [D]) daun pegagan panjang gelombang maksmum 205 nm dan dapat dilihat pada (pita I) 310 nm dan (pita II) 265 nm dengan absorbansi 0.047 positif mengandung flavonol. (E) rumput teki hanya terdapat (I pita) yaitu 295 nm dengan absorbansi 0.029 positif mengandung flavon. (F) Begitupun dengan daun waru hanya terdapat (I pita) yaitu 290 nm dengan absorbansi 0.036 positif mengandung flavon. Dapat disimpulkan bahwa berdasarkan uji kualitatif tanaman iler, ketepeng, rumput mutiara, rumput teki dan pegagan mengandung flavonoid kecuali tanaman waru tidak terdeteksi kandungan flavonoidnya.This studyaims to examine the total flavonoid contentin some traditional medicinal plants. Determination of total flavonoid content swere determined using ethanol-HCl, where as flavonoid analysis was analysed by spectrophotometry UV-VIS.The results showed the total flavonoid contentin Ketepeng China plant (Cassia alataL.) was 26.863 mg/ml, Iler plant (Coleus scutellariodes L. Benth) was 14.2464 mg/ml, nut-grass (Cyperus rotundus L.) was 6.505 mg/ml; Pegagan (Centella asiatica) was 3.816 mg/ml; pearl grass (Oldenlandia corymbosa) was 2.686 mg/ml, and Waru (Hibiscus tiliaceus L.) was 1.425 mg/ml. The highest total flavonoid was found in ketepeng(26.8633mg/ml), whereas the lowest was found in waru (1.4246 mg/ml). Flavonoid analysis was performed using a spectrometer with a wavelength (?) of 200-400 nm, with ?max = 205 nm. Flavonoid analysis using a spectrophotometer, amon others showed that: (1) The maximum wavelength of Iler leaf was 205 nm and can be see non the Band I 300 nm and Band II 250 nm, with 0.242 absorbance. This indicates that this isolate was positive for flavonols; (2) Maximum wavelength of pearl leaf was 205 nm and can be see non the Band I 305 nm and Band II 260 nm, with 0.023 absorbance. This indicates that this isolate was positive for flavonols; (3) Maximum wavelength of ketepeng leaf was 205 nm and can be see non the Band I 330 nm and Band II 276 nm, with 0.167 absorbance. This indicates that this isolate was positive for flavonols; (4) Maximum wavelength of pegagan leaf was 205 nm and can be see non the Band I 310 nm and Band II 265 nm, with 0.047 absorbance. This indicates that this isolate was positive for flavonols; (5) nut-grass had only 1 band, namely 295 nm with absorbance 0.029. This indcates that this isolate was positive for flavons; (6) waru leaf had also only 1 band, namely 290 nm with absorbance 0.036. This this isolate was positive for flavons.
Kajian Toksisitas dari Fraksi Heksana, Etil Asetat, dan Etanol Daun Soyogik (Sauraia bracteosa DC) Mojo, Triyono; Abidjulu, Jemmy; Runtuwene, Max R. J.
Jurnal MIPA Vol 5, No 1 (2016)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jm.5.1.2016.11411

Abstract

Telah dilakukan penelitian mengenai Kajian Toksisitas dari Fraksi Heksana, Etil Asetat dan Etanol Daun Soyogik (Saurauia bracteosa DC). Daun Soyogik dikeringanginkan sampai kering dan dimaserasi berturut-turut menggunakan pelarut heksana, etil asetat dan etanol. Uji toksisitas dilakukan  menggunakan metode Brine Shrimp Lethality Test (BSLT), kemudian diidentifikasi presentasi kematian larva udang menggunakan analisis probit (LC50). Hasil pengujian toksisitas menunjukkan nilai LC50 yaitu : fraksi  heksana (181,97), fraksi etil asetat (12,97) dan fraksi etanol (2,82).A research has been about Toxicity  of the Fraction Soyogik Leaves (Saurauia bracteosa DC) from Hexane, Ethyl Acetate and Ethanol. Soyogik leaves drying till dunes and maceratied successively using hexane, ethyl acetate and ethanol solvent. Toxicity tests performed using Brine Shrimp Lethality Test (BSLT) methode. Toxicity testing showed the LC50 value is hexane fraction (181,97), ethyl acetate fraction (12,97) and fraction of ethanol (2,82).
ANALISIS KANDUNGAN MERKURI DAN SIANIDA DI DAERAH ALIRAN SUNGAI TALAWAAN, SULAWESI UTARA Sultan, Sitti N.; Abidjulu, Jemmy; Koleangan, Harry S. J.
JURNAL ILMIAH SAINS Volume 15 Nomor 1, April 2015
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jis.15.1.2015.8311

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ABSTRAK Telah dilakukan penelitian untuk menentukan konsentrasi merkuri dan sianida di DAS Talawaan dengan metode Spektofotometer Serapan Atom Uap Dingin (CVAAS) untuk merkuri dan Spektrofotometer HACH DR 5000 untuk sianida yang kemudian dibandingkan dengan hasil penelitian sebelumnya. Pengambilan dan pengujian sampel dilakukan sebanyak dua kali dengan selisih waktu 1 bulan. Hasil penelitian menunjukkan bahwa konsentrasi merkuri dibawah batas deteksi yaitu ≤ 0,0007 ppm yang dalam penelitian sebelumnya berkisar pada 0,0013-0,0015 ppm. Sedangkan konsentrasi sianida di DAS Talawaan berkisar pada 0,001-0,01 ppm, tidak jauh berbeda dengan penelitian sebelumnya yaitu berkisar pada 0,005-0,017 ppm. Kata kunci: pencemaran, merkuri, sianida, DAS Talawaan   CONTENT ANALYSIS OF MERCURY AND CYANIDE IN TALAWAAN WATERSHED, NORTH SULAWESI ABSTRACT Has conducted a study to determine the concentrations of mercury and cyanide in the Talawaan watershed with methods Cold Vapor Atomic Absorption Spectrophotometer (CVAAS) for mercury and HACH DR 5000 Spectrophotometer for cyanide which is then compared with the results of previous studies. Making and testing of samples performed twice with a gap of 1 month. The results showed that mercury concentrations below the detection limit is ≤ 0,0007 ppm in previous research revolves around 0,0013-0,0015 ppm. not much different from previous studies that range in 0,005-0,017 ppm. Keywords: pollution, mercury, cyanide, DAS Talawaan
AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL DAN n-HEKSANA DARI DAUN RUMPUT SANTA MARIA (Artemisia vulgaris L.) PADA MINYAK IKAN Bangol, Erpi; Momuat, Lidya I.; Abidjulu, Jemmy
JURNAL ILMIAH SAINS Volume 14 Nomor 2, Oktober 2014
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jis.14.2.2014.6117

Abstract

ABSTRAK Penelitian ini bertujuan untuk menentukan kandungan total fenolik dan aktivitas antioksidan ekstrak etanol dan n-heksana dari daun Artemisia vulgaris L. Total fenolik diukur menggunakan metode Follin-Ciocalteau dengan asam galat sebagai larutan standar. Aktivitas antioksidan diukur berdasarkan analisis kadar peroksida dan malonaldehida (MDA) dari minyak ikan. Hasil penelitian menunjukkan bahwa ekstrak etanol memiliki kandungan total fenolik sebesar 81.22 mg/kg dan ekstrak n-heksana sebesar 20.10 mg/kg. Kemampuan penghambatan peroksida maupun MDA oleh ekstrak etanol lebih tinggi daripada ekstrak n-heksana. Sebagai pembanding, α-tokoferol memiliki aktivitas penghambatan peroksida dan MDA lebih tinggi daripada ekstrak n-heksana, tetapi lebih rendah daripada ekstrak etanol. Kata kunci :Artemisia vulgaris L., antioksidan, fenolik, peroksida, malonaldehida   ANTIOXIDANT ACTIVITY OF THE ETHANOL AND n-HEXANE EXTRACTS OF LEAVES OF GRASS SANTA MARIA (Artemisia vulgaris L.) IN FISH OIL ABSTRACT The purpose of the study was to determine the total phenolic content and antioxidant activity of the ethanol and n-hexane extracts of leaves of Artemisia vulgaris L. Total phenolic was determined using Follin-Ciocalteau method with gallic acid as a standard solution. The antioxidant activity was measured based on the analysis of the levels of peroxide and malonaldehida (MDA) in fish oil. The results showed that the ethanol extract had a total phenolic content of 81.224 mg/kg and n-hexane extracts of 20.101 mg/kg. The ability of peroxide and MDA inhibition by ethanol extract was higher than that by n-hexane extract. For comparison, α-tocopherol has higher inhibitory activity on peroxide and MDA than n-hexane extracts, but lower than ethanol extract. Keywords: Artemisia vulgaris L., antioxidants, phenolic, peroxide, malonaldehida
SKRINING FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN DARI DAUN NASI (PHRYNIUM CAPITATUM) DENGAN METODE DPPH (1,1-DIFENIL-2-PIKRILHIDRAZIL) Wijaya, Dwi Putra; Paendong, Jessy E.; Abidjulu, Jemmy
Jurnal MIPA Vol 3, No 1 (2014)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jm.3.1.2014.3899

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Telah dilakukan penelitian tentang skrining fitokimia dan uji aktivitas antioksidan dari daun nasi (Phrynium capitatum) dengan metode DPPH (1,1-difenil-2-pikrilhidrazil). Skrining fitokimia meliputi pengujian alkaloid, flavonoid, saponin, steroid, triterpenoid dan fenolik. Uji aktivitas antioksidan dilakukan dengan penambahan 2 mL larutan DPPH dengan 0,5 mL larutan ekstrak dengan konsentrasi masing-masing 1000, 750, 500 dan 250 µg/mL. Data yang diproleh kemudian digunakan untuk menghitung nilai IC50 dari ekstrak etanol daun nasi. Hasil pengujian menunjukan bahwa ekstrak etanol daun nasi mengandung senyawa alkaloid, flavonoid, saponin, steroid dan fenolik. Ekstrak etanol daun nasi memiliki aktivitas antioksidan trrtinggi pada konsentrasi 1000 µg/mL sebesar 65,77 % dan semakin menurun aktivitasnya dengan berkurangnya konsentrasi ekstrak, konsentrasi 750, 500 dan 250 µg/mL masing-masing sebesar 53,96 %, 43,8 % dan 19,58 % dengan nilai IC50 pada konsentrasi 701,78 µg/mL.A research on phytochemicals screening and antioxidant activity test of daun nasi (Phrynium capitatum) using DPPH (1,1-diphenyl-2-picrylhydrazyl) method had been conducted. Test for alkaloids, flavonoids, saponins, steroids, triterpenoids and phenolic were included in phytochemical screening. Antioxidant activity was tested through the addition of 2 mL DPPH solution into 0.5 mL of the extract having a concentration of 1000, 750, 500 and 250 µg/mL respectively. The data obtained was used to calculate the IC50 value for the ethanol extract of daun nasi. The results showed that the ethanol extract of daun nasi contains alkaloids, flavonoids, saponins, steroids and phenolic. Ethanol extract of daun nasi has the highest antioxidant activity of 65.77% at concentration of 1000 µg/mL. Its activity decreased with decreasing concentration of the extract, which were 53.96 %, 43.8 % and 19.58 % at concentration of 750, 500 and 250 µg/mL respectively. IC50 values was found at a concentration of 701.78 µg/mL.