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All Journal International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Riset Kimia CHEMPUBLISH JOURNAL IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Jurnal Zarah Indonesian Journal of Chemistry Eksakta : Berkala Ilmiah Bidang MIPA Molekul: Jurnal Ilmiah Kimia Majalah Kedokteran Andalas Majalah Farmasetika Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Hydrogen: Jurnal Kependidikan Kimia Molekul: Jurnal Ilmiah Kimia International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis Journal of The Indonesian Society of Integrated Chemistry Jurnal Kimia Unand
Mai Efdi
Departemen Kimia FMIPA Universitas Andalas
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Analisis GC-MS ekstrak tanaman terfermentasi (ETT) dari kulit buah jengkol (Pithecellobium jiringa Prain) Refilda Suhaili; Lucy Prima Ardi; Emil Salim; Mai Efdi
CHEMPUBLISH JOURNAL Vol. 5 No. 1 (2020): Chempublish Journal
Publisher : Universitas Jambi, Fakultas Sains dan Teknologi, Program Studi Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v5i1.7957

Abstract

Analysis of active compounds in fermented plant extract (FPE) from the ngapi nut peel using Effective Microorganism-4 (EM-4) has been done by Gas Chromatography-Mass Spectroscopy (GC-MS). There were 88 compounds found in fermented plant extract, the major content with the area above 1% were 7 compounds such as succinic acid; ethyl hydrogen succinate; 1,2,3-benzetriol; 3,3-dimethylhexanal; L-proline, 1-methyl-5-oxo-methyl ester; 3-methoxycinnamic acid and hexadecanoic acid. Based GC-MS analysis, fermented plant extract indicated that several compounds that have potential as biopesticides.
Studi komputasi terhadap struktur, sifat antioksidan, toksisitas dan skor obat dari scopoletin dan turunannya Annisa Wulandari; Afrizal Afrizal; Emriadi Emriadi; Mai Efdi; Imelda
CHEMPUBLISH JOURNAL Vol. 5 No. 1 (2020): Chempublish Journal
Publisher : Universitas Jambi, Fakultas Sains dan Teknologi, Program Studi Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v5i1.9023

Abstract

Studi komputasi pada struktur, sifat antioksidan dari scopoletin dan turunannya telah dipelajari melalui analisis DFT/B3LYP/6-31G dalam fase gas. Analisis toksisitas dengan OSIRIS Property Explorer online telah menunjukkan bahwa scopoletin dan turunannya tidak bersifat mutagenik, tidak menyebabkan tumor dan iritasi, akan tetapi beberapa diantaranya memiliki resiko tinggi terhadap sistem reproduksi. Scopoletin dan turunannya memiliki skor obat berkisar antara 0,270 - 0,503 yang menunjukkan bahwa senyawa tersebut memiliki kemiripan obat yang sebanding dengan obat yang ada. Sifat antioksidan scopoletin dan turunannya dapat dijelaskan dengan baik oleh mekanisme transfer atom hidrogen (TAH) dengan nilai BDE berkisar antara 69,986 - 90,510 Kkal/mol dalam fase gas. Nilai BDE sangat dipengaruhi oleh sifat substituen dan ditemukan bahwa substituen pendorong elektron menurunkan nilai BDE. Nilai BDE menurun dengan urutan dari senyawa 9>6>7>8> scopoletin >1>10>3>5>4>2 dalam fase gas, sehingga urutan kemampuan mendonasikan atom hidrogen adalah 2>4>5>3>10>1> scopoletin >8>7>6 >9. Nilai ΔBDE dari scopoletin dan turunannya pada fase gas berkisar dari -16,064 hingga 4,460 Kkal/mol. Nilai BDE fase gas yang dihitung secara signifikan lebih rendah daripada nilai SET-PT dan PA pada fase gas. Hasil ini lebih lanjut menunjukkan bahwa TAH secara termodinamika lebih disukai daripada SET-PT, PA dan ETE dalam fase gas.
Antibacterial Activity and Structure Elucidation of Salicin from Stem Bark of Salix tetrasperma ROXB. Sari Ramadhani; Adlis Santoni; Mai Efdi
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 4, No 2 (2019): June 2019
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v4.i2.47

Abstract

Salix tetrasperma Roxb. (Family Salicacaeae) is a plant that used as traditional medicine for anti-inflammatory, analgesic, reduces fever, and itching medicine. In this study was carried out extraction, isolation, structure elucidation of salicin from Salix tetrasperma Roxb. stem bark and it’s antibacterial activity. The extraction method was used the maceration method by n-hexane, ethyl acetate, and methanol solvents. Isolation of compound from ethyl acetate extract of Salix tetrasperma Roxb. stem bark using chromatography methods and obtained white solid (15 mg). The structure was elucidated using spectroscopic analysis, including Ultraviolet (UV), Infrared (IR), Nuclear Magnetic Resonance (NMR) and comparative literature, identified as salicin compound with molecule formula C13H18O7. Antibacterial activity was evaluated against Escherichia coli and Staphylococcus aureus bacteria using disk diffusion method. This compound has a great an antibacterial activity against Staphylococcus aureus bacteria with clear zone diameter of 10.2 ± 0.3 mm. This shows that the Salix tetrasperma Roxb. stem bark has great potential as a source of antibacterial compound
A Triterpenoid Compound From The Leaves of Lantana camaraLinn. Kartika MZ Kartika; Suryati Suryati; Mai Efdi
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 3, No 1 (2018): February 2018
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v3.i1.18

Abstract

A triterpenoid compound has been isolated from the ethyl acetate fraction of Lantana camaraLinn leaves. The isolation was performed by chromatography of gravitation column with a gradient elution system using hexane, ethyl acetate and methanol. Purification by recrystallization produces a white solid (20 mg) with a melting point of 288-289 °C. The results of elucidation of UV, IR, 1H-NMR, 13C-NMR, HMBC, HSQC, DEPT and COSY spectral data, it is known that the isolated triterpenoid compound is 22β-angeloyloxy-9-hydroxy-3-oxo-olean-12- en-28-oicacid with molecular formula C35H52O6. Keywords—Lantana camaraLinn, Chromatography of gravitation column, Triterpenoid, C35H52O6
Isolation of Flavonoid Compound and Antioxidant Activity of Salix tetrasperma Roxb. Leaves Ria Januarti; Adlis Santoni; Mai Efdi
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 4, No 2 (2019): June 2019
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v4.i2.42

Abstract

Salix Tetrasperma Roxb. is a plant that found in Indonesia were used as traditional medicine such as diabetes and wound healing. In this study, a flavonoid compound of the ethyl acetate extract of Salix tetrasperma Roxb. leaves was isolated by chromatography technique and the antioxidant activity was determined by DPPH assay. The isolation led to obtain 5,7-dihydroxy-3'-methoxyflavone based on NMR spectra. The ethyl acetate extract exhibited the highest antioxidant activity with the IC50 is 65.89 µg/mL. This study shows that the Salix tetrasperma Roxb. has good potential as source of antioxidant agent.
Natural Clay of Pasaman Barat Enriched by CaO of Chicken Eggshells as Catalyst for Biodiesel Production Syukri Syukri; Kevin Septioga; Syukri Arief; Yulia Eka Putri; Mai Efdi; Upita Septiani
Bulletin of Chemical Reaction Engineering & Catalysis 2020: BCREC Volume 15 Issue 3 Year 2020 (December 2020)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.15.3.8097.662-673

Abstract

This study uses broiler chicken eggshells to enhance catalytic activity of clay obtained from Pasaman Barat (West Sumatra, Indonesia) in lab-scale biodiesel production. The eggshell is a source of calcium oxide (CaO) which operates as a catalyst when mixed with the clay (Ca-Clay). Two other catalysts were also prepared as comparisons by 1) heating the clay at 800 oC for 6 hours (P-Clay), 2) mixing the P-Clay with KOH (K-Clay). An X-ray Fluorescence (XRF) showed the elemental composition of Ca-Clay contained Ca, Si, Al, and Fe. An X-ray Diffraction (XRD) showed the formation of highly crystalline CaO in the Ca-Clay with the main peak at 2θ = 37.27o. The Fourier Transform Infra Red (FTIR) spectrum showed an absorption peak in the range of 700-900 cm-1 indicating Ca-O stretching demonstrating successful incorporation of the CaO into the clay. The catalytic activity test showed the Ca-Clay had a higher catalytic performance than P-Clay and K-Clay in terms of the yield of biodiesel produced (73%). Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 
Upaya Penanggulangan Pandemi Covid-19 di Panti Asuhan Al-Falah, Padang Refinel Refinel; Emriadi Emriadi; Safni Safni; Mai Efdi; Syukri Syukri; Suryati Suryati; Marniati Salim; Imelda Imelda; Ibnu Irawan; Putri Arwanda
Warta Pengabdian Andalas Vol 27 No 2 (2020)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.27.2.113-118.2020

Abstract

The Islamic Boarding School and Orphanage Al-Falah Padang are located on Bypass Km 16, behind the West Sumatra TVRI office. Al-Falah Boarding School has 367 students, 265 of them are foster children in the Orphanage. Inadequate construction and classrooms, the students and foster children of the Islamic Boarding School and the Al-Falah Orphanage studied and lived their daily lives. The occurrence of the Covid-19 pandemic certainly affected the daily activities and learning activities of the orphanage children. Especially, the fulfillment of their basic needs. Moreover, the main problem of Covid-19 is not only about the effects by the virus on sufferers but also about its rapid transmission. Therefore, to help the crisis due to Covid-19, several lecturers and students from the Faculty of Mathematics and Natural Sciences Universitas Andalas (Unand) provided staple foods, money, masks, hand sanitizers, and disinfectants for residents of the Al-Falah Padang orphanage. It is hoped that can help the residents of the Al-Falah orphanage who certainly feel the impact of the Covid-19 pandemic.
The potency of secondary metabolites from traditional medicine plants as anti cancer agent Mai Efdi
Majalah Kedokteran Andalas Vol 37 (2014): Supplement 2 | Published in December 2014
Publisher : Faculty of Medicine, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (327.498 KB)

Abstract

The seconday metabolites from traditional medicine plants have played an important role incancer treatment. Exploration of natural active compounds from medicinal plants for cancertreatment has attracted substantial attention worldwide. Several secondary metabolites thatwere isolated fom the plants, such as vincristne, vinblastine, campthothecins, have been usedhave been used clinically for over 40 years. Numerous techniques have been developedto obtain compounds for drug discovery including isolation from plants, synthetic chemistry,screening bioassays. As part of efforts to discover phytochemicals as anticancer agent, ourgroup were isolated several compunds mainly from Annonaceae and Melliaceae family thatshowed active againts human leukemia HL-60 cells.
Antioxidant Flavonoid Glycoside from Leaves of Cacao Mistletoe (Scurrula ferruginea (Jack) Danser) Mai Efdi; Dara Pratama; Afrizal Itam; Tia Okselni
Indonesian Journal of Chemistry ARTICLE IN PRESS
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.72133

Abstract

Scurrula ferruginea (Jack) Danser is a folk medicine to treat several diseases. S. ferruginea is the mistletoe that lives by deriving nutrients from the host. Hence, the host has a significant effect on the biological activities and bioactive components of S. ferruginea. In this study, the leaves of S. ferruginea were macerated by methanol solvent to extract the chemical components and fractionated by hexane and ethyl acetate solvent, respectively, to separate organic compounds. The biological activity of crude extracts as the antioxidant was investigated by 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. The result showed that the highest antioxidant activity was obtained from the ethyl acetate fraction with the IC50 of 10.88 ± 0.39 µg/mL. Furthermore, the trituration method used several solvents to isolate secondary metabolites from the initial crude methanol extract. This purification process produced a flavonoid compound of quercitrin. The antioxidant activity of quercitrin was also determined by the DPPH method. The result showed that this compound has stronger activity than the crude extracts with the IC50 of 5.95 ± 0.11 µg/mL. This study demonstrated that cacao mistletoe of S. ferruginea may have the potential activity to treat the diseases caused by the presence of free radicals.
A Cytotoxic Compound from n-Hexane Fraction of Lantana camara Linn Leaves Suryati Suryati; Yuni Malasari; Mai Efdi; Elida Mardiah
Molekul Vol 14, No 1 (2019)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (271.155 KB) | DOI: 10.20884/1.jm.2019.14.1.477

Abstract

In this study, one triterpenoid compound from n-hexane fraction of Lantana camaraLinn leaves has cytotoxic activity was isolated. Isolation was carried out using gravity chromatographycolumnand purification by recrystallization method. Isolated compound was obtained white solid with melting point 252-253oC. The structure of isolated compound was elucidated using spectroscopic analysis Ultraviolet (UV), Infrared (IR), 1H-Nuclear Magnetic Resonance (1H-NMR), 13C-Nuclear Magnetic Resonance (13C-NMR) Heteronuclear Multiple Bond Connectivity (HMBC),  Heteronuclear Multiple Quantum Correlation (HMQC), Distortionless Enhancement Polarization Transfer (DEPT) and comparative literature data, identified as Lantadene A (22β-angeloyloxy-3-oxoolean-12-en-28-oic-acid) with molecule formula C35H52O5. The Lantadene A compound was evaluated for cytotoxic activity against shrimp larvae Artemia SalinaLeach using Brine Shrimp Lethality Test(BSLT) method, showed strong cytotoxic activity with an LC50value of 48.97 µg/mL.
Co-Authors -, Sabariah -, Yefrida . Syukri A.A. Ketut Agung Cahyawan W Abdi Wira Septama Adlis Santoni Afritunando, Yogi Afrizal Afrizal Afrizal Afrizal Afrizal Afrizal Itam Aju Deska Akmel Suhada Alvionita, Jessica Annisa Wulandari Arifah, Zil Aziz, Enda Desriansyah Bashari, Muhammad Hasan Beginer Subhan Bumali, Restu Bustanul Arifin Bustanul Arifin Bustanul Arifin Dara Pratama Defitriani, Anggun Deswati Deswati Devi Purnamasari Dian Kumala Sari Dira Hefni Djaswir Darwis Djaswir Darwis Efahmi, Efahmi Elida Mardiah Emil Salim Emriadi - Enda Desriansyah Aziz Erizal Zaini Fadhil Ferdian Fatma Sri Wahyuni Febriana, Nindi Antika Hamzar Suyani Hermansyah Aziz Ibnu Irawan Ida Ayu Putu Sri Widnyani Imelda Imelda Jessica Alvionita Kartika MZ Kartika MZ Kartika Kevin Septioga Koketsu, Mamoru Kunitomo Watanabe Lestari Ningsih Lucy Prima Ardi M. Iqbal Alfarisyi M. Iqbal Alfarisyi Mamoru Koketsu Marniati Salim Masyerli, Scify Bilqis Nawafi Matlal Fajri Alif Mudinillah, Adam Mulia, Melindra Murdiman, Imelda Nindi Antika Febriana Niza Lian Pernadi Novesar Jamarun Nurainas Nurainas Nurul Fadhillah Nurul Hanifah Olly Norita Tetra Putri Arwanda Rahmadani, Indah Refilda Refilda Refinel - Ria Januarti Ridho Sahary Adha Sabariah - Safni Safni Salim, Emil Sari Ramadhani Solly Aryza Suhada, Akmel Suhada, Akmel Suryati Suryati Suryati Suryati Suryati Susanti, Febria Elvy Syafrizayanti Syafrizayanti Syafrizayanti Syafrizayanti, Syafrizayanti Syukri Arief Syukri Arief Syukri Syukri Syukri Syukri Syukri Syukri Tia Okselni Untung Kurnia Agung, Mochamad Upita Septiani Watanabe, Kunitomo Yefrida - Yeni Stiadi Yetria Rilda Yogi Afritunando Yosie Andriani Yulia Eka Putri Yulizar Yusuf Yuni Malasari Zilfa Zilfa Zulhadjri Zulhadjri