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Sintesis Metil Ester dari Minyak Biji Kemiri (Aleurites Molluccana) Menggunakan Metode Ultrasonokimia Rahmawati Aziz; Aisyah Aisyah; Asriani Ilyas
Al-Kimia Vol 4 No 1 (2016): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (278.252 KB) | DOI: 10.24252/al-kimia.v4i1.1453

Abstract

Using the fuel oil is the basic necessary in the world now. But, the raw material cannot be updated.  To ensure the availability of the fuel oil so, the newest of alternative energy is explored it. One of the ways is biodiesel which made from vegetable oil. In this research is resulted from the transesterification reaction between candlenut oil and methanol by utilizing ultrasonic equipment. This research has passed some phases, they are the determining of acid number in oil then continued by creating biodiesel from ultrasonic wave 47 kHz. Identification of FTIR and GCMS are two methods which used to analyze the component compound in biodiesel product. The conversion number that be gotten from FAME with reaction of variation time 30, 40 and 50 in succession 0,037%, 0,029% and 0,018%. The result analysis of FTIR shows some of functional groups which are special from biodiesel. While the result of GCMS analysis is known that there are 5 component compounds in biodiesel namely ester methyl palmitic acid, ester methyl olead, stearata ester methyl, linoleic ester methyl and elaidic ester methyl.
Bioaktivitas Ekstrak Metanol Daun Pegagan (Centella Asiatica L.) Terhadap Pertumbuhan Bakteri Mycobacterium Tuberculosis Yusran Yusran; Asriani Ilyas; Asri Saleh
Al-Kimia Vol 4 No 1 (2016): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (242.582 KB) | DOI: 10.24252/al-kimia.v4i1.1456

Abstract

Plants gotu kola (Centella Asiatica L .Urban) is a wild plant that efficacious as remedies traditional cure disease tuberculosis (TB).TB is disease contagious infection caused by bacteria mycobacterium tuberculosis. Research aims to understand the ability extract methanol leaves gotu kola red and leaves gotu kola green and determines the concentration optimal extract methanol leaves gotu kola red and leaves gotu kola green and to know the comparison between extract methanol leaves gotu kola red with an extract methanol leaves gotu kola green in inhibits the activity of mycobacterium tuberculosis.Extraction done with the methods maceration use methanol and continued with evaporation until obtained extract viscous .Testing antibacterial activity done in a microscopic observation drug susceptibility ( mods ) use plate petri dish 24 hole with the variation of concentration ie 20%,40%, 60%, 80% and 100%.The results of testing show that extracts methanol leaves gotu kola red and leaves gotu kola green positive capable of inhibiting the growth of bacteria mycobacterium tuberculosis with inhibition optimal in concentration 80 % and 100 % characterized by the absence of growth bacteria colonies which are (-) or 0 %.Extract methanol leaves gotu kola green capable of inhibiting the growth of bacteria mycobacterium tuberculosis better than extract methanol leaves gotu kola red seen in concentration 40% and 60%.
Senyawa Geranil-1”, 3”-Diokso-Para-Kresol dari Ekstrak Etil Asetat (Etoac) Kulit Akar Paliasa (Kleinhovia Hospita Linn.) Asriani Ilyas
Al-Kimia Vol 1 No 2 (2013): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.266 KB) | DOI: 10.24252/al-kimia.v1i2.1625

Abstract

Isolation and identification of secondary metabolites from EtOac extract of the root bark of Kleinhovia hospita Linn. plant had been performed. Separation techniques used consisted of extraction, fractionation, and purification. The compounds obtained were tested and elucidated based on UV, IR, and NMR spectroscopy data.  A compound obtained was geranil-1”,3”-dioxo-para-chresol.
Active Compounds Of Ethyl Acetate Extract Of Stylotella Sp. Sponges From Selayar Islands Against Mcf-7 Breast Cancer Cells Asriani Ilyas; Sahyuni Hamzah; Firnanelty Firnanelty; Titik Andriani
Al-Kimia Vol 8 No 2 (2020): DECEMBER
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v8i2.12840

Abstract

Stylotella sp. sponge is a type of marine invertebrate animals that are widely distributed in Indonesian marine areas. One of the spreading areas of the Stylotella sp. sponge is in the Selayar Islands, South Sulawesi, Indonesia. Sponges have potential as a drug because they contain secondary metabolites. The aim study was to identify the types of secondary metabolite compounds and determine the bioactivity of Stylotella sp. compounds against MCF-7 breast cancer cells. The extraction method was used in the process of obtaining isolates because it is easy and economical. Testing the level of purity of isolates was carried out with three eluent systems which showed a single stain result. FTIR characterization results showed that pure isolates contained alkaloids which were characterized by the appearance of O-H, C-N, and C-H groups. The activity of MCF-7 cells using the colorimetric method showed an IC50 value of 14987.50 µg / mL, not toxic.
SENYAWA GOLONGAN STEROID DARI EKSTRAK n-HEKSANA KULIT BATANG KAYU BITTI (Vitex cofassus) DAN UJI TOKSISITAS TERHADAP Artemia salina Leach. Asriani Ilyas; Iin Novianty; Irmayanti Irmayanti
Chimica et Natura Acta Vol 3, No 3 (2015)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (137.563 KB) | DOI: 10.24198/cna.v3.n3.9220

Abstract

Penelitian telah dilakukan untuk mengidentifikasi dan mengkarakterisasi senyawa bioaktif dari kulit batang kayu bitti (Vitex cofassus), suatu tumbuhan endemik dari Sulawesi yang termasuk famili Verbenaceae. Tahapan penelitian meliputi maserasi, fraksinasi, pemurnian, identifikasi dan uji toksisitas. Ekstraksi dilakukan dengan metode maserasi menggunakan n-hexane. Tahapan identifikasi meliputi melibatkan uji warna,analisis KLT, analisis IR, sedangkan uji toksisitas menggunakan metode BSLT dengan Artemia salina Leach sebagai bioindikator. Hasil penelitian adalah senyawa dengan bentuk kristal jarum berwarna putih dengan 0,4745 gram dan analisis fitokimia menunjukkan bahwa senyawa tersebut adalah senyawa golongan steroid. Hal ini juga didukung oleh data IR yang menunjukkan gugus fungsi kelompok steroid. Uji toksisitas menunjukkan harga LC50 pada ekstrak, fraksi, dan senyawa murni berturut-turut sebesar 74,079 ug/ml, 118,850 ug/ml and 88,201 ug/ml. Data ini menunjukkan bahwa seyawa murni yang dihasilkan adalah murni.
Determination and Characterization of Lycopene Compounds from N-Hexane Fraction of Tomato Fruit (Solanum Lycopersocum Grandyfolium) by using Fourier Transform Infrared and UV-Vis Spectrophotometry Arfiani Nur; Hajrah Hajrah; Asriani Ilyas; Aisyah Aisyah; Maria Cecilia Lezama Escalante
Walisongo Journal of Chemistry Vol 5, No 1 (2022): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v5i1.10885

Abstract

Determination and characterization of the lycopene content of the n-hexane fraction from potato-leaved tomato (Solanum lycopersicum grandyfolium) using Fourier transform infrared (FTIR) spectrophotometry and UV-Vis spectrophotometry. This study aims to determine the levels and characterization of lycopene compounds from potato-leaved tomato fruit using FTIR and UV-Vis spectrophotometers. The methods in this research include maceration, liquid-liquid extraction, crystallization with antisolvent, chromatography with three eluent systems, identification of lycopene compounds, and characterization of lycopene compounds using FTIR and UV-Vis. The results showed the presence of lycopene compounds based on the spectrum with absorption peaks at wave numbers 2924, 18 cm-1 and 2863, 66 cm-1 indicating C-H (stretching); 1637, 43 cm-1 indicating C=C alkene; and the wave numbers of 1461, 63 cm-1 and 1422, 46 cm-1 indicating the presence of a CH2 (bending) functional group. The results of UV-Vis spectrophotometric characterization showed the presence of lycopene compounds at three main wavelengths, namely at 445, 467, and 500 nm. The level of lycopene compounds produced from the n-hexane extract of potato-leaved tomato fruit was 7.25 mg/gram
Isolasi Senyawa Metabolit Sekunder Ekstrak Etanol Spons Stylotella sp Asal Kepulauan Selayar Aspina Damayanti; Asriani Ilyas; Firnanelty Firnanelty
ALCHEMY:Journal of Chemistry Vol 8, No 2 (2020): ALCHEMY: Journal of Chemistry
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/al.v8i2.10213

Abstract

Isolation of secondary metabolite compound has been conducted from sponge Stylotella sp., Selayar Island. Stylotella sp., one of Demospongiae class sponge, is found spreading in Selayar Island. This study aims to determine secondary metabolite compounds contained in the ethanol extract of Stylotella sp. sponge by extraction, fractionation and purification methods. The purity test was carried out by three eluent systems of TLC, namely chloroform:ethyl acetate (9:1), n-hexane:acetone (9:1), and chloroform:acetone (9:1). Each eluent produced a single spot. FTIR analysis of Stylotella sp. isolate showed that the pure isolates contained alkaloid compounds with the appearance of a typical functional group of alkaloid compounds. Keywords: Alkaloids, sponge Stylotella sp, extraction  Telah dilakukan isolasi senyawa metabolit sekunder dari spons Stylotella sp. asal Kepulauan Selayar. Spons Stylotella sp merupakan spons kelas Demospongiae yang ditemukan penyebarannya di Perairan Pulau Selayar. Penelitian ini bertujuan untuk mengetahui golongan senyawa metabolit sekunder yang terdapat pada ekstrak etanol spons Stylotella sp. dengan metode ekstraksi, fraksinasi dan pemurnian. Uji kemurnian dilakukan dengan uji tiga sistem eluen pada KLT yaitu kloroform:etil asetat (9:1), n-heksan:aseton (9:1), dan kloroform:aseton (9:1). Masing-masing eluen menghasilkan noda tunggal. Isolat hasil analisis FTIR menunjukkan bahwa isolat murni mengandung senyawa alkaloid dengan munculnya gugus fungsi khas senyawa golongan alkaloid. Kata kunci: Alkaloid, spons Stylotella sp., ekstraksi