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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 International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis
Mai Efdi
Andalas University
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 Social Sciences Other

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Analysis of The Essential Oil from Lantana camara Leaves and Its Cytotoxic Potential Against T-47D Breast Cancer Cells Suryati, Suryati; Aziz, Enda Desriansyah; Efdi, Mai; Wahyuni, Fatma Sri; Hefni, Dira
Jurnal Riset Kimia Vol 12, No 1 (2021): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v12i1.364

Abstract

Lantana camara Linn is a family of Verbenaceae which grows wild and is widespread in various both tropical and sub-tropical countries. Isolation essential oil of the L. camara leaves extracted by hydrodistillation and were analyzed by Gas Chromatography-Mass Spectrometry (GC-MS). The results of GC-MS analysis show isocaryophyllene (14.39%), ρ-cymene (8.17 %), β-cubebene (7.8 %), α-pinene (7.64 %), and β-elemene (5.51 %) as the main compound. The cytotoxic activity of the isolated essential oil was highly toxic both to Artemia salina shrimp larvae (LC50 15.92 µg/mL) and to breast cancer cells T-47D (IC50 10.67 µM).
STUDY ON ANTI-MICROBIAL PROPERTIES OF Enicosanthum membranifolium SINCLAIR AND Enicosanthum cupulare (KING) AIRY-SHAW Mai Efdi; Mamoru Koketsu; Kunitomo Watanabe; Nurainas -
Jurnal Riset Kimia Vol. 3 No. 1 (2009): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v3i1.75

Abstract

 ABSTRACT n-Hexane and ethyl acetate fractions of methanol extracts of two species of Annonaceae, Enicosanthum membranifolium Sinclair and Enicosanthum cupulare (King) Airy-Shaw, were screened for antimicrobial activity against eighteen bacterial strains using agar dilution method. The ethyl acetate fraction of the two Annonaceae plants showed higher antimicrobial activities than the n-hexane fraction. The extracts of the plants tested were significantly more active against gram-positive with minimum inhibitory concentration (MICs) ranging from 0.0625 to 4 mg/mL than against gram negative bacteria (MICs >4 mg/mL). Keywords: Antibacterial activity; Enicosanthum membranifolium Sinclair; Enicosanthum cupulare (King) Airy-Shaw
ISOLASI DAN ELUSIDASI STRUKTUR SENYAWA TRITERPENOID DARI KULIT BATANG AMBACANG (Mangifera foetida L.) SERTA UJI BRINE SHRIMP LETALITY TEST (BSLT) Adlis Santoni; Sabariah -; Mai Efdi
Jurnal Riset Kimia Vol. 9 No. 1 (2015): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v9i1.252

Abstract

A brine shrimp toxic compound has been isolated from Mangifera foetida L. steam bark. Based on spectroscopic data (IR,1H- NMR, 13C-NMR 1D and 2D), the structure of this compound was identified as mangiferenes B, C30H47O2. In this study, the n-hexane, ethyl acetate, methanol extracts and isolated compound showed toxic effects (LC50 471.9543; 534.5209, 678.4421, and 22.1615 μg/mL, respectively). The toxicity degree among the three extracts and isolated compound is isolated compound > n-hexane extract > ethyl acetate extract > methanol extract.
Identifikasi Senyawa Metabolit Sekunder, Uji Antimikroba dan Antioksidan Ekstrak Akar Gantung Hornstedtia Scyphifera Var. Fusiformis Holttum (Sijangkang) Adlis Santoni; Mai Efdi; Akmel Suhada
Jurnal Riset Kimia Vol. 10 No. 2 (2019): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v10i2.264

Abstract

Hornstedtia scyphifera var. fusiformis Holttum is endemic plant of Zingiberaceae family that distributed in Sumatera. Hornstedtia scyphifera var. fusiformis Holttum contained some secondary metabolite such as phenolic, saponin, triterpenoid and alkaloid. The biological activity of methanol, ethyl acetate, and n-hexane extracts from Hornstedtia scyphifera var. fusiformis Holttum suspended roots was tested for antibacterial and antioxydant activity. Antioxidant activity was analized by DPPH method. The antibacterial activity  was tested by used disk difussion method againts Staphylococcus aureus bacteria (gram-positive bacteria) and Escherichia coli (gram-negative bacteria). Almost all of Hornstedtia scyphifera var. fusiformis Holttum suspended roots extract were given antibacterial activity, nonetheless the biggest inhibition zone of Escherichia coli that was inhibited by n-hexane and ethyl acetate extracts which have inhibtion zone 10 mm at  concentration 500 mg/L and also againts Staphylococcus aureus, the biggest inhibition by ethyl acetate and n-hexane extracts which have inhibition zone 10.30 mm at concentration 500 mg/L. Among all extracts tested, methanol extract of the possessed moderate free radical scavenging activity with IC50 = 51.89 mg/L.
EKSTRAKSI DAN IDENTIFIKASI SENYAWA ANTOSIANIN DARI JANTUNG PISANG RAJA (Musa x paradisica L.) SERTA UJI AKTIVITAS ANTIOKSIDANNYA Jessica Alvionita; Djaswir Darwis; Mai Efdi
Jurnal Riset Kimia Vol. 9 No. 2 (2016): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v9i2.284

Abstract

Anthocyanin coumpound have been successfully extracted from plantain bud (Musa x paradisiaca L) which can used as natural colorant and antioxidant. Coumpound anthocyanin exracted using maceration method with solvent ethanol that has been acidified with acetic acid and citric acid until pH 1,5. The extract anthocyanin is identified by UV-Vis spectrophotometer (260-800 nm) and retrieved two peaks that is 277 nm (UV) and 533 nm (Visible). Further treatment is carried out with KCKT-DAD at a wavelength 516 nm. Anthocyanin treatment given temperature and pH. Total anthocyanin monomeric obtained for ethanol + acetic acid was 30,22 mg/L; ethanol + citric acid was 18,20 mg/L. The warming influence of the anthocyanin compound lead to degradation of color is highest for ethanol + acetic citric on temperature 100oC with percentage degradation of 61,97 %. The antioxidant activity of the extract was measured by 1,1- difenil-2-pikrilhidrazil (DPPH) the result showed that the anthocyanin extracts from Plantain bud has antioxidant activity ethanol + acetic citric acid extract is very active as an antioxidant with IC50  values of 3,74 mg/L.
STUDI OPTIMASI EKSTRAKSI KANDUNGAN SENYAWA FENOLIK TOTAL DAN UJI AKTIVITAS ANTIOKSIDAN DARI DAUN MANGGIS (Garcinia mangostana Linn.) Emil Salim; Yogi Afritunando; Nindi Antika Febriana; Mai Efdi
Jurnal Riset Kimia Vol. 10 No. 1 (2019): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v12i2.308

Abstract

This study aims to determine antioxidant activity and total phenolic content of mangosteen leaves in several different solvents. The antioxidant activity test of the extract was determined by the DPPH method and the total phenolic content was determined by the Folin-Ciocalteu method. The phytochemical test of mangosteen leaves showed the presence of phenolic compounds, saponins, triterpenoids and alkaloids. The extraction results increase with increasing water content in methanol, ethanol and acetone. The highest amount of extract was obtained using 50% acetone solvent (34.98 ± 0.17%). Extraction using 100% ethanol showed the highest total phenolic content (614.25 ± 5.58 mg GAE / g extract) and the lowest IC50 value (5.81 mg / L). The results of this study indicate that the use of 50% acetone solvent can optimize the amount of extract and 100% ethanol can optimize the content of total phenolic compounds and antioxidant activity of mangosteen leaves.
INHIBISI KOROSI BAJA RINGAN MENGGUNAKAN BAHAN ALAMI DALAM MEDIUM ASAM KLORIDA: Review Yeni Stiadi; Syukri Arief; Hermansyah Aziz; Mai Efdi; E. Emriadi
Jurnal Riset Kimia Vol. 10 No. 1 (2019): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v12i2.321

Abstract

The corrosion of steel and its alloys is an important problem in industry, especially in acidic environments. Mild steel is one of the important alloys of iron which has many industrial applications because of its excellent mechanical properties, but mild steel is susceptible to corrosion. Corrosion problems need to be a concern and must be handled properly. Hydrochloric acid is widely used for pickling, cleansing, decomposition and metal etching, on the other hand also contributes to corrosion of metal surfaces. Plant extracts investigated the properties, mechanisms of adsorption and efficiency of inhibition as environmentally friendly corrosion inhibitors for various steel materials in different acidic media. The efficiency of corrosion inhibition of steel from plant extracts analyzed ranged from 72-98% and generally as a mixed-type inhibitor. Most of the inhibitors are adsorbed on the steel surface through a physisorption mechanism.
Validasi Metode MPM untuk Penentuan Kandungan Antioksidan dalam Sampel Herbal serta Perbandingannya dengan Metode PM, FRAP dan DPPH Yefrida Yefrida; Hamzar Suyani; Hermansyah Aziz; Mai Efdi
Jurnal Riset Kimia Vol. 11 No. 1 (2020): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v11i1.342

Abstract

The Modified Phenanthroline Method (MPM) has been validated for determination of antioxidant content in herb samples. Validation was done using Relative Standard Deviation (RSD) and percentage of recovery. The RSD and percentage of recovery for herb samples are 3.13% and 98.6%, respectively. Based on these values, MPM method is valid for determining antioxidant content in herb samples. T test shows no significant differences of antioxidant content using any of these methods, MPM, PM, FRAP or DPPH, at a 95% confidence level. MPM method shows a very strong correlation with PM and FRAP method.  While with DPPH and TPC shows is strong.
Analysis of The Essential Oil from Lantana camara Leaves and Its Cytotoxic Potential Against T-47D Breast Cancer Cells Suryati Suryati; Enda Desriansyah Aziz; Mai Efdi; Fatma Sri Wahyuni; Dira Hefni
Jurnal Riset Kimia Vol. 12 No. 1 (2021): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v12i1.364

Abstract

Lantana camara Linn is a family of Verbenaceae which grows wild and is widespread in various both tropical and sub-tropical countries. Isolation essential oil of the L. camara leaves extracted by hydrodistillation and were analyzed by Gas Chromatography-Mass Spectrometry (GC-MS). The results of GC-MS analysis show isocaryophyllene (14.39%), ρ-cymene (8.17 %), β-cubebene (7.8 %), α-pinene (7.64 %), and β-elemene (5.51 %) as the main compound. The cytotoxic activity of the isolated essential oil was highly toxic both to Artemia salina shrimp larvae (LC50 15.92 µg/mL) and to breast cancer cells T-47D (IC50 10.67 µM).
Isolasi Dan Karakterisasi Terpenoid Serta Uji Antioksidan Dari Ekstrak Kulit Batang Shorea singkawang Mai Efdi; Syafrizayanti Syafrizayanti; Dian Kumala Sari
CHEMPUBLISH JOURNAL Vol. 1 No. 2 (2016): Chempublish Journal
Publisher : Universitas Jambi, Fakultas Sains dan Teknologi, Program Studi Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (475.162 KB)

Abstract

Isolasi dan karakterisasi terpenoid dari fraksi etil asetat ekstrak kulit batang Shorea singkawang telah dilakukan. Senyawa ini diisolasi dengan metode maserasi, kromatografi kolom, dan rekristalisasi serta dikarakterisasi dengan metode spektroskopi. Terpenoid tersebut berupa padatan putih dengan titik leleh 140-142°C dan berdasarkan data GC menunjukkan adanya 1 puncak. Berdasarkan data spektroskopi UV dan IR, senyawa hasil isolasi dalam pelarut metanol menunjukkan serapan maksimum pada panjang gelombang 201 nm dan memiliki gugus –OH, -CH2, -CH3, dan geminal dimetil namun belum diketahui posisi dari gugus-gugus tersebut. Hasil uji antioksidan dengan metode DPPH menunjukkan ekstrak etil asetat memiliki potensi sebagai antioksidan dengan EC50 sebesar 0,075%. Kata kunci : Shorea singkawang, terpenoid, uji antioksidan  
Co-Authors -, Sabariah -, Yefrida . Syukri A.A. Ketut Agung Cahyawan W Adlis Santoni Afritunando, Yogi Afrizal Afrizal Afrizal Afrizal Afrizal Itam Aju Deska Akmel Suhada Alvionita, Jessica Annisa Wulandari Aziz, Enda Desriansyah Bumali, Restu Dara Pratama Devi Purnamasari Dian Kumala Sari Dira Hefni Djaswir Darwis Djaswir Darwis Elida Mardiah Emriadi - Enda Desriansyah Aziz Erizal Zaini Fadhil Ferdian Fatma Sri Wahyuni Febriana, Nindi Antika Hamzar Suyani Hermansyah Aziz Ibnu Irawan Imelda Imelda Jessica Alvionita Kartika MZ Kartika MZ Kartika Kevin Septioga Koketsu, Mamoru Kunitomo Watanabe Lestari Ningsih Lucy Prima Ardi Mamoru Koketsu Marniati Salim Melindra Mulia Mudinillah, Adam Murdiman, Imelda Nindi Antika Febriana Niza Lian Pernadi Nurainas - Nurainas Nurainas Putri Arwanda Refilda Refilda Refinel - Ria Januarti Sabariah - Safni Safni Salim, Emil Sari Ramadhani Suhada, Akmel Suhada, Akmel Suryati Suryati Suryati Suryati Suryati Suryati Suryati Suryati Syafrizayanti Syafrizayanti Syukri Arief Syukri Syukri Syukri Syukri Syukri Syukri Tia Okselni Upita Septiani Watanabe, Kunitomo Yefrida, Yefrida Yeni Stiadi Yetria Rilda Yogi Afritunando Yulia Eka Putri Yuni Malasari Zulhadjri Zulhadjri