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All Journal Jurnal Teknoin Seminar Nasional Aplikasi Teknologi Informasi (SNATI) PROSIDING SEMINAR KIMIA Jurnal Kimia Mulawarman Jurnal Kimia Riset JURNAL ATOMIK Unisia
Chairul Saleh
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Journal : JURNAL ATOMIK

 1 
PREPARATION OF METHYL SALICYLATE USE THE ACID CATALYST BY WITHOUT SOLVENTS METHOD Widyanto Saptawan Priambodo; Daniel Daniel; Chairul Saleh
JURNAL ATOMIK Vol 4 No 1 (2019)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Preparation of methyl salicylate use the acid catalyst by without solvents method has been done. Preparation of methyl salicylate was carried out by reacting salicylic acid with methanol and use sulfonic acid as a catalyst. The raeaction was use reflux method at 60-70 oC for 3 hours. The result of preparation of methyl salicylate were it has a yellow clear solution (like oil) and has a distinctive smell (like gandapura oil). From the result of FT-IR analysis showed the functional groups O-H phenol, C-H sp2, C-H sp3, C=O ester, C=C aromatic, C-O-C ester and C-OH phenol. Based on these results it is known that the methyl salicylate has been formed.
PHYTOCHEMICAL TEST, TOXICITY TESTS AND ANTIOXIDANT ACTIVITIES OF MAHOGANY SEEDS (Swietenia mahagoni (L) Jacq) Novi Rindawati; Daniel Daniel; Chairul Saleh
JURNAL ATOMIK Vol 4 No 2 (2019)
Publisher : Jurusan Kimia FMIPA UNMUL

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Phytochemical tests, toxicity tests and antioxidant activities of mahogany seeds (Swietenia mahagoni (L) Jacq) were carried out. This study is meant to identify the secondary metabolism, the LC50 and LC50 of extract of ethanol, n-hexane fraction, and ethyl acetate fraction with the seeds of (Swietenia mahagoni (L) Jacq). Phytochemical screening on ethanol extract of mahogany seeds showed the presence of alkaloids, flavonoids, triterpenoids and phenolic n-Hexane fraction contains alkaloids compounds, triterpenoid and phenolic compounds. Ethyl acetate fraction contains flavonoids, triterpenoids and phenolic compounds. The toxicity level is performed by tests of BSLT (Brine shrimp lethality test), while antioxidant activity is performed by a spectrofotometr uv-vis. The total extract of ethanol is obtained at the smallest amount of LC50 for 49.47565 ppm, n-Hexane fractions obtained from LC50 as much 75.30347 ppm, ethyl acetate fraction obtained from LC50 as much as 77.87461 ppm and those three extracts are toxic. The IC50 value of a total ethanol of 176 ppm, n-Hexane fraction of as 189 ppm and ethyl acetate fraction of 144 ppm with is strength medium antioxidant.
PEMANFAATAN SERBUK ECENG GONDOK (Eichornia crassipes) TERAKTIVASI DENGAN SISTEM KANTONG CELUP SEBAGAI ADSORBEN PENJERAP ION LOGAM KADMIUM (Cd) Mayasari Azhari Rochman; Chairul Saleh; Bohari Yusuf
JURNAL ATOMIK Vol 2 No 2 (2017)
Publisher : Jurusan Kimia FMIPA UNMUL

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The research on the use of water hyacinth powder (Eichornia crassipes) activated by adsorption method as the adsorption of cadmium metal ions (Cd) using dye bag system had been done. Water hyacinth powder was activated previously using HNO3 0,3 M then characterized by FT-IR spectroscopy. Infra-red spectrum showed hydroxyl cluster (-OH) from cellulose could function as the active sites of metal adsorption. Adsorption process was done by using variant contiguous time periods of metal ions, variant concentration of metal ions and addition of the metal ions of lead (Pb) ion adsorption on metal cadmium (Cd). From the results of the study Atomic Absorption Spectrophotometer (AAS) had shown the percentage of adsorption by water hyacinth powder adsorbent which was activated at 30 minutes of optimum contiguous time with optimum concentration 100 mg/L of 57,175 mg/L and 56,441% percentage of adsorption. In addition of the metal ions of lead (Pb) ion adsorption on metal cadmium (Cd) decreased to 20,681 mg/L with the percent adsorbed at 20,415% . Keywords: , , , , , AAS.
Uji Aktivitas Antihiperurisemia Dari Daun Hijau Tanaman Pucuk Merah (Syzygium myrtifolium Walp.) Terhadap Mencit Jantan (Mus musculus) Retno Juwita; Chairul Saleh; Saibun Sitorus
JURNAL ATOMIK Vol 2 No 1 (2017)
Publisher : Jurusan Kimia FMIPA UNMUL

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Antihyperuricemia activity tests were conducted on an ethanol extract of green leaf plant red bud (Syzygium myrtifolium Walp.). Hyperuricemia is a condition in which uric acid levels in the blood increases due to the consumption of high purine is converted into uric acid. Antihyperuricemia activity test ethanol extract of green leaf plant red bud (Syzygium myrtifolium Walp.) Conducted on male white mice with a variety of doses of 1.85, 3.7 and 7.4 mg/kg. Extract dose of 7.4 mg/kg dose is the closest percentage drop on allopurinol which lowers blood uric acid levels at 55.04 %. Phytochemical screening showed that the green leaf plant red bud contains alkaloids, triterpenoids, steroids, phenolics, flavonoids and saponins. These results indicate that the ethanol extract of green leaf plant red bud has antihyperuricemia activity.
PEMBUATAN PLASTIK POLIHIDROKSI YANG DAPAT TERDEGRADASI DARI SINGKONG GAJAH (Manihot esculenta) DENGAN PENAMBAHAN GLISEROL SEBAGAI PLASTICIZER Yuly Syafriyanti; Rahmat Gunawan; Chairul Saleh
JURNAL ATOMIK Vol 1 No 2 (2016)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

The synthesis of plastic production which can be degreded use manihot esculenta extract already researched. The method of this research using blending according to physics with the addition of glycerol as a plasticizer and FT-IR characterization. The result show that the glycerol concentrate that produce plastics which is easy to degreded well, exist in 45% concentrate whit a value of 25% water resistance and degradability value of 19,7 mg/day. The date of FT-IR give information that there are group alteration or between before and after glycerol increasing in long wave intensity
SINTESIS SILIKA MESOPORI TERSULFONASI DARI ABU DAUN BAMBU PETUNG (Dendrocalamus asper) Sari Clara Precelia; RR Dirgarini Julia Nurlianti Subagyono; Chairul Saleh
JURNAL ATOMIK Vol 3 No 1 (2018)
Publisher : Jurusan Kimia FMIPA UNMUL

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Research on the synthesis of sulfonated mesoporous Silica from bamboo leaves ash (Dendrocalamus asper) as Heterogeneous Acid Catalyst has been conducted. Bamboo Leaf Ashfish serves as a source of silica for the manufacture of Mesoporous Silica. The research phase consisted of synthesis of MSU-H with surfactant template method, mesoporous silica modification with 3-mercaptopropyl-trimethoxysilane (MPTMS) using post grafting method. The mesoporous silica has a pore volume of 1.03 cm3/g, a surface area of 150 m2/g and a pore diameter of 27.5 nm. The FT-IR spectrum of mesoporous silica before sulfonation shows the presence of Si-O-Si, and Si-OH functional groups while that of Mesoporous silica after sulfonation shows the presence of Si-O-Si, Si-O, Si-OH and –SO3H functional groups.
UJI FITOKIMIA DAN ANTIBAKTERI EKSTRAK ETANOL BIJI MAHONI (Swietenia mahagoni (L.) Jacq) Nanda Arwidhiah; Chairul Saleh; Winni Astuti
JURNAL ATOMIK Vol 6 No 2 (2021)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Phytochemical test and antibacterial activity of ethanol extract of Mahoni seed (Swietenia mahagoni (L.) Jacq) have been done. The extraction of Mahoni seed samples was carried out by the maceration method using ethanol as a solvent. An antibacterial activity test was carried out using the agar diffusion method. Phytochemical tests results show that ethanol extract of Mahoni seeds has secondary metabolites of alkaloid, triterpenoid, and phenolic compounds. The antibacterial activity test results obtained MIC values for Streptococcus mutans bacteria were 1.25-2.5% and for Salmonella typhi bacteria at 0.625-1.25%. Ethanol extract of Mahoni seeds has broad-spectrum antibacterial activity.
Pemanfaatan Larutan Natrium Klorida (NaCl) Untuk Menurunkan Kadar Sianida Pada Rebung Bambu Kuning (Bambusa vulgaris Schrad. Ex J.C) Secara Spektrofotometri UV-Vis Aries Oman; Saibun Sitorus; Chairul Saleh
JURNAL ATOMIK Vol 7 No 1 (2022)
Publisher : Jurusan Kimia FMIPA UNMUL

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Penelitian tentang pemanfaatan larutan natrium klorida (NaCl) untuk menurunkan kadar sianida pada rebung bambu kuning (Bambusa vulgaris Schrad. Ex J.C) secara spektrofotometri UV-Vis telah dilakukan. Penelitian kali ini berfokus pada penggunaan variasi konsentrasi dan lama perendaman larutan NaCl untuk menurunkan kadar sianida pada rebung bambu kuning. Hasil penentuan kadar sianida awal sampel rebung bambu kuning (Bambusa vulgaris) sebesar 1,1051 ppm. Konsentrasi larutan NaCl yang efektif untuk menurunkan kadar sianida pada rebung bambu kuning (Bambusa vulgaris) yaitu NaCl 5% dimana kadar sianida yang diperoleh sebesar 0,3949 ppm dengan persentase penurunan sebesar 64,3% lalu lama perendaman yang efektif menggunakan larutan NaCl 5% untuk menurunkan kadar sianida pada rebung bambu kuning (Bambusa vulgaris) yaitu selama 3 Jam dimana kadar sianida yang diperoleh sebesar 0 ppm dengan persentase penurunan sebesar 100%.
AKTIVITAS ANTIBAKTERI EKSTRAK METANOL DAUN TANAMAN SAMBUNG URAT (Cayratia carnosa) TERHADAP Salmonella thypi and Propionibacterium acnes mutma Inna Inna; Winni Astuti; Chairul Saleh
JURNAL ATOMIK Vol 7 No 1 (2022)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

This research was conducted to the content of secondary metabolite of methanol extract of Cayratia carnosa leaf and activity toward Salmonella thypi and Propionibacterium acnes. The phytochemical test has tested by color testing and antibacterial activity carried out by agar diffution method. The secondary metabolites contained in the methanol extract from the Cayratia carnosa leaf are Flavonoids, Steroid and phenolic. Methanol extract from Cayratia carnosa leaf has a wide range of action. The value of Minimun Inhibitory Concentracion (MIC) for methanol extracts from the Cayratia carnosa leaf toward Salmonella thypi is between 6 to 8% and Propionibacterium acnes between 0.5 to 1%. Keywords: Cayratia carnosa (Link) Gagnepain, Phytochemical test, Antibacterial activity.
Co-Authors Ade Dinaran Ade Trisna P. Alimuddin Alimuddin Aman Sentosa Panggabean Angellina Putri Petrisia Aries Oman Bohari Yusuf Citra Uli Sitompul Daniel Daniel Daniel Daniel Daniel Tarigan Djihan Ryn Pratiwi Edi Novian Jaya Fath Ali Akbar Fiktor Boni Pasilala Josua K. Panannangan Juntia Kirana Pratiwi Mayasari Azhari Rochman mutma Inna Inna Nanda Arwidhiah Novi Rindawati Nur Hamid Nur Hidayah Rabiatul Adhawiyah Al-Idrus Rahmat Gunawan Retno Juwita RR Dirgarini Julia Nurlianti Subagyono Rudi Kartika, Rudi Saibun Sitorus Sari Clara Precelia Subur P Pasaribu Tasik Sinta Tri Eva Lidiawati Widyanto Saptawan Priambodo Winni Astuti Yohana Pebrina Pasaribu Yuly Syafriyanti