Pala (Myristica fragransa) mengandung senyawa metabolit sekunder yang menunjukkan aktivitas farmakologi. Namun, bagian perikarpium terutama bagian nonvolatil belum banyak dilaporkan. Tujuan dari penelitian ini sebagai screening awal dengan melihat potensi dari senyawa yang dihasilkan perikarpium pala.Dua belas senyawa digambar dua dimensi, dianalisis menggunakan software dan server prediktor. Software yang digunakan adalah Marvin Sketch, ChembioDraw kemudian dianalisis sifat fisikokimia senyawa tersebut. Selanjutnya, server predictor untuk melihat karakteristik farmakokinetika dan toksisitasnya. Berdasarkan analisis sifat fisikokimia senyawa terbaik yaitu licarin (titik didih, titik kritis temperature dan refraksi molar), guaiacin (titik leleh), dan virolane (titik kritis tekanan). Hasil analisis Lipinski menunjukkan senyawa stigmasterol dan b-sitosterol tidak memenuhi kriteria Lipinski.. Selain itu data farmakokinetika menunjukkan stigmasterol, b-sitosterol, asetoneoglinan memiliki kelarutan dalam air yang rendah. Nilai permeabilitas CaCO-2 dan intestinal absorption semuanya memenuhi. Licarin termasuk substrat P-glikoprotein. Volume Distribusi menunjukkan semua senyawa terikat protein serum. b-sitosterol permeabilitas terhadap sawar darah-otak yang paling baik dan erythro-(7S,8R)-∆8’-7-acetoxy-3,4,3’,5’-tetramethoxy-8-O-4’-neolignan permeabilitasnya buruk. Surinamensin menunjukkan permeabilitas terhadap sistem saraf pusat yang tidak dapat berpenerasi. Elemicin dan surinamensin tidak dimetabolisme oleh enzim sitokrom CYP3A4. B-sitosterol memiliki klirens paling tinggi. Semua senyawa menunjukkan tingkat toksisitas yang rendah untuk penggunaan kulit (kecuali elemicin) dan tidak toksik bagi hati.ABSTRACT Nutmeg (Myristica fragransa) contains secondary metabolites that exhibit pharmacological activity. However, the pericarpium, especially the nonvolatile part, has not been widely reported. The purpose of this study was as an initial screening by looking at the potential compounds produced by the nutmeg pericarp. Twelve compounds were drawn in two dimensions, analyzed using software and predictor servers. The software used is Marvin Sketch, ChembioDraw and then the physicochemical properties of these compounds are analyzed. Furthermore, the predictor server to see the pharmacokinetic characteristics and toxicity. Based on the analysis of the physicochemical properties of the best compounds, compound licarin (boiling point, critical point of temperature and molar refractivity), guaiacin (melting point), and virolane (critical point of pressure). The results of Lipinski's analysis showed that stigmasterol and b-sitosterol compounds did not meet Lipinski's rule. In addition, pharmacokinetic data showed that stigmasterol, b-sitosterol, acetoneoglinan had low solubility in the water. The values of CaCO-2 permeability and intestinal absorption were all satisfactory. Licarin is a P-glycoprotein substrate. The Volume Distribution shows all the compositions of the serum proteins. B-sitosterol with the best permeability to the blood-brain barrier and erythro-(7S,8R)-∆8'-7-acetoxy-3,4,3',5'-tetramethoxy-8-O-4'-neolignan bad permeability. Surinamensin exhibits permeability to the non-permeable central nervous system. Elemicin and surinamensin are not metabolized by the cytochrome enzyme CYP3A4. B-sitosterol has the highest clearance. All compounds show a low level of toxicity for skin use (except elemicin) and are not toxic to the liver.

Ascidian Herdmania momus is one of the components of coral reef biota that has bioactive potential. Bioactive compounds function as self-defense and also function for human life, one of which can be used as a source of antioxidants. The purpose of this study is to determine the antioxidant activity from the ethanol extracts of the Ascidian Herdmania momus. Ascidian Herdmania momus was extracted using maceration method with ethanol as a solvent. As a parameter, testing of antioxidant activity was carried out by the DPPH (1,1-diphenil-2-picrylhydarzyl) method measured using UV-Vis spectrophotometry with variations in concentrations of 25, 50, 75, 100, and 125 μg / mL. The results of the average % inhibition values obtained were 59.13% (25 μg / mL), 60.93% (50 μg / mL), 61.73% (75 μg / mL), 63.86% (100 μg / mL) and 66.16% (125 μg / mL). The highest antioxidant activity was found at a concentration of 125 μg / mL with an average % inhibition value of 66.16%. The conclusion is the ethanol extracts of Ascidian Herdmania momus was shown to have antioxidant activity in each concentration of the test. Keywords: Ascidian Herdmania momus, Antioxidants, Extraction, DPPH ABSTRAK Ascidian  Herdmania momus merupakan salah satu komponen biota penyusun terumbu karang yang mempunyai potensi bioaktif. Senyawa bioaktifnya berfungsi sebagai pertahanan diri dan juga berfungsi bagi kehidupan manusia, salah satunya dapat dijadikan sebagai sumber antioksidan. Tujuan dari penelitian ini yaitu, untuk mengetahui aktivitas senyawa antioksidan dari ekstrak etanol Ascidian Herdmania momus. Ascidian Herdmania momus diekstraksi menggunakan metode maserasi dengan etanol sebagai pelarut. Sebagai parameter, pengujian aktivitas antioksidan dilakukan dengan metode DPPH (1,1-diphenil-2-picrylhydarzyl) yang diukur menggunakan Spektrofotometri UV-Vis dengan variasi konsentrasi 25, 50, 75, 100, dan 125 μg/mL. Hasil nilai % inhibisi rata-rata yang didapat yaitu 59.13% (25 μg/mL), 60.93% (50 μg/mL), 61.73% (75 μg/mL), 63.86% (100 μg/mL) dan 66.16% (125 μg/mL). Aktivitas antioksidan tertinggi terdapat pada konsentrasi 125 μg/mL dengan nilai % inhibisi rata-rata 66.16%. Kesimpulan yang didapat yaitu ekstrak etanol Ascidian Herdmania momus terbukti memiliki aktivitas antioksidan disetiap konsentrasi pengujian. Kata Kunci : Ascidian Herdmania momus, Antioksidan, Ekstraksi, DPPH

The nutmeg (Myristica fragrans) flesh extract has a strong antioxidant activity. Therefore, M. fragrans flesh can be developed for functional drinks which are sources rich in antioxidants good for the prevention and treatment of diseases such as cancer and cardiovascular diseases. However, the tannins' content can cause a bitter and sour taste. Therefore, the tannins content should be reduced by the addition of egg white. The purpose of this study is to find out the comparison of antioxidant activity between a combination of M. fragrans flesh extract with various concentrations of egg white and to correlate its antioxidant activities with tannin, total flavonoid, and total phenolic contents. The antioxidant activities were conducted on M. fragrans flesh extract by using DPPH and ABTS radicals. Tannin, total flavonoid, and total phenolic contents from M. fragrans flesh extract were also tested. The M. fragrans flesh extracts without addition egg white have a strong antioxidant in scavenging the stable free radical ABTS (89.980±0.480 µg/mL) and intermediate antioxidant in scavenging the stable free radical DPPH (105.669±0.102 µg/mL). It is followed accordingly by tannin, total flavonoid, and total phenolic contents, namely 14.034±0.100 %w/w TAE, 26.929±0.129 %w/w QE, and 53.164±0.129 %w/w GAE, respectively. Correlation of tannin, total flavonoid, and total phenolic contents, which inhibited DPPH and ABTS radicals had R2 values of about 89.23-97.63%. It showed that antioxidant activity is strongly influenced by the tannin, total flavonoid, and total phenolic contents. Therefore, precipitation from the tannin-protein bond caused antioxidant activities were decreased.

The Stylissa sp. were under the sea, and these sponge contains active compound, wich are more active than the compounds produced by teresterial plants. The purpose of this  study was intended to test the antioxidant activity of the stylissa sp. Sample of the stylissa sp sponge was from the territorial of manado bay. This research an experimental laboratory by testing the ethanol extract of Stylissa sp sponge using  DPPH method (1.1-diphenil-2-pikrhydrazil) to analyze antioxidant activity using spectrophotometri uv-vis with variations in concentrations 2, 4, 6, 8, and 10mg/ L. Was extracted Stylissa sp, sponge by maceration using ethanol 95% as a solvent. The  value results of % inhibisi (2mg/ L); 86.50% (4mg/ L); 90.5% (6mg/L); 90.53% (8mg/ L) and 90,83 (10mg/L). The highest antioxidant activity at 10mg/L concentration with mean precentage 90.83% inhibisi. The result for this study indicate that the extract from ethanol Stylissa sp  sponge has highest antioxidant activity.Keywords: Antioxidant, DPPH, Stylissa sp., bay of Manado ABSTRAKSpons Stylissa sp. terdapat di bawah laut dan spons ini mengandung senyawa aktif yang persentase keaktifannya lebih besar dibandingkan dengan senyawa-senyawa yang dihasilkan oleh tumbuhan darat. Penelitian ini bertujuan untuk menguji aktivitas antioksidan dari Stylissa sp. Sampel Spons Stylissa sp. di peroleh dari perairan Teluk Manado. Penelitian ini merupakan eksperimental laboratorium dengan pengujian terhadap ekstrak etanol Spons Stylissa sp dengan metode DPPH (1,1-diphenil-2-pikrihidrazil) untuk menguji aktivitas antioksidan yang diukur menggunakan Spektrofotometri UV-Vis dengan variasi konsentrasi 2, 4, 6, 8, dan 10mg/L. Ekstrak Spons Stylissa sp diperoleh dengan cara maserasi menggunakan pelarut etanol 95%. Hasil nilai % inhibisi rata-rata yang didapat yaitu 87,20% (2mg/L); 86,50% (4mg/L); 90,5% (6mg/L); 90,53% (8mg/L) dan 90,83 (10mg/L). Aktivitas antioksidan tertinggi terdapat pada konsentrasi 10mg/L  dengan nilai % inhibisi rata-rata 90,83%. Hal ini menunjukkan bahwa ekstrak etanol Spons Stylissa sp memiliki aktivitas antioksidan yang tinggi.Kata kunci : Antioksidan, DPPH, Spons Stylissa sp., Teluk Manado

Sawilangit leaves (Vernonia Cinerea (L.) Less) is a plant that contains flavonoids as an antipyretic. The purpose of this study was to determine the effectiveness of flavonoid compounds from ethanol extract of sawilangit (Vernonia cinerea (L.) Less) leaves as an antipyretic in male white rats Wistar strain (Rattus norvegicus) induced by DPT vaccine. A total of 15 male rats were divided into 5 treatment groups, namely the negative control group (CMC 1%), the positive control group (paracetamol), and the ethanol extract group of sawilangit leaves with a dose of 200 mg, a dose of 400 mg, a dose of 800 mg. Each mouse was induced intramuscularly with a DPT vaccine at a dose of 0.3 ml. Temperature measurements were carried out before and after induction, then every 30 minutes after giving the test material from the 30th minute to the 180th minute. Data were analyzed statistically with One Way ANOVA and continued with LSD test to see significant differences between treatments. The results showed that the ethanol extract of sawilangit leaves had an antipyretic effect on male white rats Wistar strain..Key words: Antipyretics, Vernonia Cinerea, male white rats ABSTRAKDaun Sawilangit  (Vernonia Cinerea (L.) Less) adalah salah satu tanaman yang mengandung zat Flavonoid sebagai antipiratik. Tujuan penelitian ini untuk mengetahui adanya efektivitas senyawa flavonoid dari ekstrak etanol daun sawilangit (Vernonia cinerea (L.) Less) sebagai antipiretik pada tikus putih jantan galur wistar (Rattus norvegicus) yang diinduksi vaksin DPT. Sebanyak 15 ekor tikus putih jantan dibagi 5 kelompok perlakuan yaitu kelompok kontrol negatif (CMC 1%), kelompok kontrol positif (parasetamol), dan kelompok ekstrak etanol daun sawilangit dosis 3,6 mg, dosis 7,2 mg, dosis 14,4 mg. setiap tikus diinduksi vaksin DPT dosis 0,3 ml secara intramuscular. Pengukuran suhu dilakuan sebelum dan sesudah induksi, kemudian setiap 30 menit  setelah pemberian bahan uji dari menit ke-30 sampai menit ke-180. Data dianalisis secara statistika dengan One Way ANOVA dan dilanjutkan uji LSD untuk melihat beda nyata antar perlakuan. Hasil penelitian menunjukan bahwa Ekstrak etanol daun sawilangit mempunyai efek antipiretik terhadap tikus putih jantan galur wistar. Kata kunci: Antipiretik, Vernonia Cinerea, tikus putih jantan