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All Journal VALENSI JURNAL KIMIA SAINS DAN APLIKASI BioWallacea Journal of Biological Research JURNAL SAINS KOVALEN: Jurnal Riset Kimia Jurnal Progres Kimia Sains ALCHEMY Jurnal Penelitian Kimia SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Hydrogen: Jurnal Kependidikan Kimia Jurnal Pengabdian UNDIKMA Hydrogen: Jurnal Kependidikan Kimia Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) Jurnal Pijar MIPA Makara Journal of Science Jurnal Pepadu Science and Technology: Jurnal Pengabdian Masyarakat

La Ode Kadidae, La Ode

Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Halu Oleo University, Kendari, Indonesia|Halu Oleo University|Indonesia

Author-ID : 491532

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Veterinary Other

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Sintesis 1-(Benzyloxycarbonyl)-1,4,7,10-Tetraazacyclododecane Sebagai Senyawa Antara Untuk Sintesis Senyawa Makromolekul Berbasis Cyclen Kadidae, La Ode
Jurnal Progres Kimia Sains Vol 1, No 1 (2011): JPKS Open Acces
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (236.77 KB)

Cyclen merupakan senyawa siklik yang mengandung empat atom nitrogen yang tidaktersubstitusi. Senyawa ini dapat dikembangkan menjadi senyawa ligan yang fleksibel dimanaatom-atom hidrogen yang terikat pada keempat atom nitrogen dapat disubstitusi dengangugus-gugus fungsi sesuai kebutuhan. Ligan-ligan turunan cyclen dapat menjadi dasar untukpembuatan senyawa-senyawa makromolekul dan dapat berfungsi sebagai pengenal senyawa(reseptor) atau sebagai senyawa sensor. Preparasi senyawa antara untuk pembuatan ligan-liganberbasis cyclen merupakan suatu tantangan yang lebih menarik dibandingkan dengan homosubstitusi. Dalam penelitian ini telah disÃntesis senyawa antara untuk pembuatan ligan berbasiscyclen yakni senyawa 1-(benzyloxycarbonyl)-1,4,7,10-tetraazacyclododecane. Spektrum 13CNMRnya menunjukkan bahwa senyawa target hasil sintesis dengan kemurnian yang cukuptinggi. Hal ini sesuai dengan hasil analisis unsur-unsur C, H dan N, dan diperoleh C, 43.22; H,7.45; N, 12.50. C16H29Cl3N4O2â€¢2H2O dengan hasil perhitungan yakni C, 43.40; H, 7.28; N,12.65.

SINTESIS METIL ESTER NITRAT DARI MINYAK BIJI NYAMPLUNG (CALOPHYLLUM INOPHYLLUM L) Astam, Amal; Nurliana, Laily; Kadidae, La Ode
Hydrogen: Jurnal Kependidikan Kimia Vol 7, No 2 (2019): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v7i2.1927

Research on the synthesis of methyl ester nitrate from nyamplung seed oil (Calophyllum inophyllum L.). The aims of study are to are to determine the nitrate methyl ester can be synthesized from nyamplung seed oil determine the yield of the transesterification and nitration reaction from nyamplung seed oil. In this study nyamplung seed oil was obtained from pressing nyamplung seeds using a hydraulic press, then the crude oil obtained was subsequently degumming to remove gum. Free oil of the etherified gum then transesterification with methanol. The transesterification results are then titrated and produce nitric methyl esters. Characterization of nitric methyl ester by spectrophotometer IR shows functional groups C-ONO2, C=C dan C-NO2 at wave number 1635,64 cm-1 1550,77 cm-1 dan 1365, 60 cm-1. The yield of transesterification of nyamplung oil was 64.66% and the nitration yield was 10.6%.

Pelatihan Pembuatan Sabun Antiseptik Cair untuk Meminimalisasi Penularan Covid Melalui Gerakan Cuci Tangan Kadidae, La Ode; Kadir, Laode Abdul; Nugrawaty, Andi Laila
Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) Vol 3, No 1 (2021)
Publisher : Vokasi Universitas Halu Oleo

Sambuli village lies along Nambo beach of Nambo district, City of Kendari Southeast Sulawesi province. This village is mainly occupied by fishermen and farmers. Nowadays, It is every citizenâ€™s responsibility to remind each other about the danger of Covid-19 and the importance of how to limit the spread of the disease. Considering this issue, Institute of Research and Community Service Halu Oleo University arranged a team consisting of 3 academic-staff; two of them from Chemistry study program and one from Biotechnology study program, and 3 students. All the three students were from Chemistry Department. Â The aims of the team sent to the village were first to educate people of Sambuli about how to minimize the spread of Covid-19 disease and second is to train people of Sambuli to make liquid antiseptic soap. The soap would be used as an economical and practical substance for hand washing. The method used in this community service included public talking (mini seminar) and demonstration. During this community service, villagers got involved actively in discussion and participating actively during demonstration. They and their leaders were equally very enthusiastic and supportive. And in turn, the villagers with the assistance of students and academic staff of Halu Oleo University eventually managed to make liquid antiseptic soap by them shelves.Â Â

Pemanfaatan Kulit Buah Kakao sebagai Antibakteri Escherichia coli dan Staphylococcus aureus Mashuni Mashuni; La Ode Kadidae; M. Jahiding; Muh. Aksan Dermawan; Fitri Handayani Hamid
BioWallacea : Jurnal Penelitian Biologi (Journal of Biological Research) Vol 6, No 2 (2019): BioWallacea and Biotechnological Science
Publisher : University of Halu Oleo

The Cocoa pod husk (CPH) is a processed cocoa fruit waste, containing lignocellulosic biomass which can be pyrolysis to produce liquid smoke. The purpose of this study was to obtain antibacterial material from liquid smoke using the CPH pyrolysis method. This research method includes: preparation by drying the CPH raw materials for 5-7 days and then chopping the CPH sample dry. Furthermore, the pyrolysis process is carried out at 385-500 °C with a heating flow rate of 6 °C/min. The liquid smoke crude obtained is filtered and distilled fractionated to produce clearer liquid smoke. Analysis of Total Phenolic Content (TPC) of liquid smoke was carried out by the Folin-Ciocalteu (FC) method using gallic acid standards and Ultraviolet-Visible spectrophotometer instruments at maximum wavelength (λmax) 765 nm. The CPH liquid smoke antibacterial test was carried out using a dilution method with variations in liquid smoke concentrations of 5, 7, 10and 15%. The TPC of CPH liquid smoke is 1.035 g / L.The spectrogram analysis of Gas Chromatography-Mass spectroscopy (GC-MS) of CPH liquid smoke shows the presence of compounds:acetic acid, Methyl glyoxal,Pyridine, 4-methyl- pyridine, 4-[2(methylamino)ethyl]- Phenol.The results of the analysis of the minimum inhibitory concentration (MIC) of CPH liquid smoke against Escherichia coli and Staphylococcus aureus bacteria were obtained at a concentration of 15%.This study shows that pyrolysis extraction can be used as a technique for obtaining extracts of phenolic compounds from CPH and is promising for safe antibacterial agents.Keywords: CPH, liquid smoke, pyrolysis, Phenolic, antibacterial.Abstrak Kulit buah kakao (KBK) merupakan limbah hasil olahan buah kakao, mengandung biomassa lignoselulosa yang dapat dipirolisis menghasilkan asap cair.Tujuan penelitian ini untuk mendapatkan zat antibakteri dari asap cair dengan metode pirolisis KBK. Metode penelitian ini meliputi: preparasi dengan pengeringan bahan baku KBK selama 5-7 hari kemudian dilakukan pencacahan sampel KBK kering. Selanjutnya, Proses pirolisis dilakukan pada suhu 385-500°C dengan kecepatan alir pemanasan 6°C/menit.Crude asap cair yang diperoleh difiltrasi dan didestilasi fraksinasi untuk menghasilkan asap cair yang lebih jernih. AnalisisTotal Phenolic Content (TPC) asap cair dilakukan dengan metode Folin-Ciocalteu (FC) menggunakan standar asam galat dan instrumen spektrofotometer Ultraviolet-Visible pada panjang gelombang maksimum (λmaks) 765 nm. Uji antibakteri asap cair KBK dilakukan menggunakan metode dilusi dengan variasi konsentrasi asap cair yaitu 5, 7, 10dan 15%. TPC asap cair KBK sebesar 1,035 g/L.Analisis spectrogram Gas Chromatography-Mass spectroscopy (GC-MS) asap cair KBK menunjukkan adanya senyawa: asam asetat, metil glioksal, piridin, 4-metil-piridin, 4-[2(metilamino) etil]-fenol. Hasil analisiskonsentrasi hambat minimum (KHM) asap cairKBKterhadap bakteri Escherichia coli dan Staphylococcus aureus didapatkan pada konsentrasi 15%.Studi ini menunjukkan bahwa ekstraksi pirolisis dapat digunakan sebagai teknik untuk memperoleh ekstrak senyawa fenolik dari CPH dan menjanjikan untuk bahan antibakteri yang aman.Kata kunci: KBK, asap cair, pirolisis, fenolik, antibakteri.

Sintetis Senyawa Caffeic Acid Phenethyl Ester dan Karakterisasinya Menggunakan 1H NMR La Ode Kadidae
SAINS : Jurnal Kimia & Pendidikan Kimia Vol 10, No 2 (2021): EDISI DESEMBER 2021
Publisher : PKimia FKIP Universitas Halu Oleo

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Thesynthesis ofcaffeic acid phenethyl ester (CAPE) and its characterization using 1H NMR has been carried out. This research aims to discloseseveral potential ways of CAPE synthesis.The study was conducted by reacting some precursors in effort to produce CAPE.The progress of the synthesis was monitored using TLC and the characterization of the synthetic products was performed with 1H NMR.Three different approaches in effort to synthesize CAPE were conducted.The first approach was a direct rection between caffeoyl chloride and phenethyl alcohol. The second approach was including a protection using benzyl group and the last one was utilizing acetyl protecting groups where both these protecting groups were used to protect the catechol groups of the caffeic acidmoiety. However, the first and second methods failed to achieve the compound target, CAPE. There was only one procedure hasbeen successful, namely the reaction between phenethyl ester with acetyl-protected caffeic acidresulting inthe production of the synthetic compound target, CAPE, as much as 42%

Sintesis Ester Asam Sinamat Menggunakan Variasi Katalis Asam La Ode Kadidae; Ruslin Ruslin; Laily Nurliana; Laode Abdul Kadir
Jurnal Pijar Mipa Vol. 15 No. 3 (2020): Juni
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Sintesis ester sinamat dengan mereaksikan asam sinamat dan senyawa-senyawa alkohol telah dilakukan.Tujuan penelitian ini adalah untuk mengetahui kinerja katalis heterogen, nafion, sebagai katalis asam pada sintesis ester-ester sinamat dibandingkan dengan katalis homogen yang lazim digunakan yakni H2SO4 dan p-TsOH. Metode yang digunakan adalah reaksi esterifikasi Fischer yang berlangsung pada suhu 100 oC selama 18 sampai dengan 48 jam. Progres reaksi diikuti menggunakan TLC dan hasil-hasil reaksi dianalisis dengan 1H NMR.Hasil penelitian menunjukkan bahwa penggunaaan sikloheksanol sebagai pereaksi memberikan hasil yang sangat signifikan ketika menggunakan katalis homogen, baik itu H2SO4 maupun p-TsOH dimana lebih dari 85% produk diperoleh. Dengan menggunakan Nafion, sebagai katalis hanyaÃÂ 31% produk berhasil diperoleh apabila menggunakan kondisi yang sama dengan yang diterapkan saat menggunakan katalis homogen. Pada saat reaksi berlangsung lebih lama yaitu 48 jam hasil reaksi meningkat menjadi 78%. Hal yang menarik adalah ketika fenetil ester digunakan sebagai pereaksi menggantikan sikloheksanol, maka hasil yang diperoleh dari ketiga jenis katalis di atas 90%.Hal ini menunjukkan bahwa Nafion adalah katalis heterogen yang cukup menjanjikan untuk digunakan pada reaksi esterifikasi asam sinamat dan turunannya.

Sintesis Metil Ester Nitrat dari Minyak Biji Nyamplung (Calophyllum inophyllum L) Amal Astam; Laily Nurliana; La Ode Kadidae
Hydrogen: Jurnal Kependidikan Kimia Vol 7, No 2 (2019): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika

Penentuan Kandungan Fenolik Total Liquid Volatile Matter dari Pirolisis Kulit Buah Kakao dan Uji Aktivitas Antifungi terhadap Fusarium oxysporum Mashuni Pallawagau; Nur Arfa Yanti; M. Jahiding; La Ode Kadidae; Wahyu Ahwarul Asis; Fitri Handayani Hamid
ALCHEMY Jurnal Penelitian Kimia Vol 15, No 1 (2019): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Kulit buah kakao (KBK) adalah limbah organik dari hasil olahan buah kakao yang dapat digunakan sebagai sumber senyawa aktif. Kulit kakao mengandung senyawa selulosa, hemiselulosa dan lignin yang dapat terdekomposisi menghasilkan senyawa fenolik. Penelitian ini bertujuan untuk menentukan kandungan fenolik total atau Total Phenolic Content (TPC) dari liquid volatile matter (LVM) hasil pirolisis KBK dan uji aktivitas antifungi terhadap Fusarium oxysporum. Produksi LVM dihasilkan dari metode pirolisis KBK pada suhu 500 °C. Penentuan TPC dengan metode spektrofotometri UV-Vis menggunakan pereaksi Folin- Ciocalteu (FC) pada panjang gelombang maksimum 765 nm dengan larutan standar asam galat dan diukur setelah dibiarkan selama 60 menit pada suhu kamar. Uji aktivitas antifungi terhadap F. oxysporum dilakukan dengan metode dilusi. LVM dari hasil pirolisis KBK adalah 25,80% (b/b) dengan TPC 100% sebesar 2,28 g/L. Pirolisis KBK menghasilkan LVM yang memperlihatkan aktivitas antifungi dengan konsentrasi hambat minimal (KHM) 1% (v/v) dan konsentrasi bunuh minimal (KBM) 9% (v/v). Oleh karena itu, LVM KBK memiliki potensi untuk diaplikasikan sebagai fungisida alami.Determination of The Total Phenolic Content of Liquid Volatile Matter from Cocoa Pod Husk Pyrolysis and Antifungal Activity Test Against Fusarium oxysporum. The cocoa pod husk (CPH) is an organic waste from the processed cocoa potentially used as source of active compounds. The CPH contains cellulose, hemicelluloses, and lignin compounds that can be decomposed into phenolic compounds. The present study investigated the determination of total phenolic content (TPC) of liquid volatile matter (LVM) of CPH followed by the antifungal activity test against Fusarium oxysporum. The LVM production was performed by the pyrolysis method at temperature of 500 °C. The determination of TPC was evaluated by the UV-Vis spectrophotometric method using the Folin-Ciocalteu (FC) reagent at maximum wavelength of 765 nm with the standart solution of gallic acid measured after 60 min reaction at room temperature. The antifungal activity test against F. oxysporum was carried out by dilution method. The pyrolysis of CPH produces LVM of 25.80% (b/b) contained TPC 100% of 2.28 g/L. The LVM produced in this study shows antifungal activity with a minimal inhibitory concentration (MIC) 1% (v/v) and minimum fungicidal concentration (MFC) 9% (v/v). Therefore, the LVM CPH produced can be applied as a natural fungicide.

Synthesis of Dansyl Cyclen and Preliminary Study of Its Fluorescent Properties La Ode Kadidae; Ruslin Ruslin; Thamrin Azis; La Aba; Laode Abdul Kadir
Jurnal Kimia Sains dan Aplikasi Vol 25, No 2 (2022): Volume 25 Issue 2 Year 2022
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

The synthesis of a dansyl cyclen-based compound as a potential chemical sensor has been carried out. The initial study of its fluorescent properties has also been conducted. This study aims to synthesize a cyclen-based compound comprising three identical pendant arms and another different arm carrying a dansyl fluorophore. Producing these heterogenous pendant arms, a-three pendant arm cyclen 9 was reacted with dansyl aziridine 10. The synthesis products were characterized using 1H NMR, 13C NMR, IR, and elemental analysis. In addition, a Fluorescent Spectrophotometer has been used to assess the fluorescent intensity changes of the synthetic ligand in a range of pH 2–13 and when it was titrated with some metal ions. Based on the results of characterization with 13C NMR for compound 2 and additional characterization with IR and elemental analysis for its hydrochloric form 11, it is wisely said that the proposed compound has been successfully synthesized, giving 66% yield as viscous brown oil 2. Moreover, the fluorescent property showed that the higher the pH employed, the higher the fluorescent intensity observed. Meanwhile, the addition of some cationic metals revealed that cadmium (II) gave the highest increase in the fluorescent intensities among other cationic metals.

Synthesis and Characterization of Chitosan-Polyvinyl Alcohol-Fe2O3 Composite Membrane for DMFC Application Permana, Dian; Ilimu, Edi; Faariu, Nur Mala; Setyawati, Arini; Kadidae, La Ode; Ramadhan, L.O.A.N.
Makara Journal of Science Vol. 24, No. 1
Publisher : UI Scholars Hub

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This study investigates the utilization of different compositions of Fe2O3 and polyvinyl alcohol (PVA) to modify chitosan in order to prepare a composite membrane. The membranes were synthesized using the phase inversion method and extensively characterized by Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), mechanical properties analysis, and water uptake analysis, whereby SEM was used to confirm the morphology of the composite membranes. Diﬀerent electrochemical properties such as ion exchange capacity, proton conductivity, and methanol permeability of these membranes were also measured. The results showed that increasing the PVA mass improved the water uptake, ion exchange capacity (IEC), and proton conductivity because the PVA addition increased the hydrophilicity of the membrane; thus, the pore surface on the membrane was more open, which also caused higher membrane permeability. However, the methanol permeability values of all composite membranes were lower than that of Nafion. The highest IEC and proton conductivity were obtained for the CS-PVA-H3070 membrane, with values of 4.300 meq/g and 6.71 × 10−2 S·cm−1, respectively. The mechanical strength of these membranes showed that the PVA addition increased the elongation break and decreased the tensile strength of the membrane. The results imply that the chitosan membrane modified with PVA and Fe¬2O3 has a potential for DMFC applications.

Co-Authors Aden Mula Pratiwi Alimin Amal Astam Astam, Amal Budiman, Herdi Budiman, Herdi Budiman C Bijang Dian Permana Faariu, Nur Mala Handayani Hamid, Fitri Ida Usman Ida Usman Ida Usman Ilimu, Edi Imran Imran Jahiding, M Jamili Jamili Kadir, Laode A. Kadir, Waris Abdul Khaeri, Andi Muhammad Naufal La Aba La Ode Abd Kadir La Ode Adi Parman Rudia La Ode Adi Parman Rudia Laily Nurliana Laily Nurliana Laily Nurliana Laily Nurliana Laily Nurliana Laode Abdul Kadir M. Jahiding M. Jahiding M.Pd Prof. Dr. I Nyoman Sudiana . Mashuni Mashuni Mashuni Mashuni Mashuni Pallawagau Muh. Aksan Dermawan Muh. Natsir Mukhsar . Muksar Muksar Nohong Nugrawaty, Andi Laila Nur Arfa Yanti Ramadhan, L.O.A.N. Ruslan Ruslan Ruslin Ruslin Ruslin Ruslin Rustam Musta Setyawati, Arini Sunarti Sunarti Suriana Suriana THAMRIN AZIS Wa Ode Harlis Wahyu Ahwarul Asis

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