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All Journal Jurnal Kimia (Journal of Chemistry) Jurnal Ilmu Dasar Microbiology Indonesia IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Science and Technology Indonesia Jurnal Penelitian Sains Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia) Seminar Nasional Lahan Suboptimal Molekul: Jurnal Ilmiah Kimia

Elfita Elfita

Unknown Affiliation

Author-ID : 2485258

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Other

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Pembuatan Etanol secara Fermentasi dari Kulit Pisang Gedah dengan Menggunakan Roti Muharni Muharni; At panagan At panagan; Elfita Elfita
Jurnal Penelitian Sains No 1 (1996)
Publisher : Faculty of Mathtmatics and Natural Sciences

Telah diteliti batas dosis starter yang ditambahkan, lama waktu fermentasi dan waktu hidrolisa yang efektif untuk menghasilkan kadar etanol tertinggi dari kulit pisang gedah. Etanol hasil fermentasi diukur dengan metoda kromatografi gas. Hasil penelitian ini menunjukkan bahwa doses starter 6%, waktu fermentasi 3 hari dan waktu hidrolisa 2 jam merupakan perlakuan efektif dimana dihasilkan kadar etanol 2,726%.

STUDI REAKSI SIKLOPENTILSILAN DENGAN 4-IODIDA THIOANISOL MENGGUNAKAN KATALIS PALADIUM Aldes Lesbani; Risfidian Mohadi; Elfita Elfita
Jurnal Kimia (Journal of Chemistry) Vol. 7, No. 2 Juli 2013
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

A study on cyclopentylsilane reaction in tetrahydrofuran with 4-iodo thioanisol has been carried out using palladium as catalyst under argon atmosphere at room temperature. The results showed that the product was tris(4-thioanisyl)cyclopentylsilane (1) which was obtained from recrystallization using methanol with the yield 35%. The Compound (1) has a melting point of 91.5-92.0 oC. Analysis using GC-MS found m/z 466 with six equivalent protons and eight carbons peak obtained from 1H and 13C NMR.

Study of Antioxidant Activities from Antihypertension Drug Plant of the Indralaya Area Seni Metasari; Muharni Muharni; Elfita Elfita; Heni Yohandini
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 5, No 1 (2020): February 2020
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v5.i1.22

Ogan ethnic population in Indralaya, Ogan Ilir District, South Sumatra was known to have used several types of plants, there are Swietenia mahagoni, Averrhoa carambola, Syzygium samarangense, Musa acuminata, Nymphaea rubra, Syzygium polyanthum, and Andrographis paniculata for the treatment of hypertension. But, scientific information has not yet been found secondary metabolites that are responsible for providing these activities. The study began with the extraction of methanol from the seven types of plants using methanol as a solvent. Each thick extract was tested for its activity using the 1,1-diphenyl-1-picryllhydrazyl (DPPH) method. The extract which showed the highest activity (methanol extract) was subsequently carried out in vitro antihypertension test using the Angiotencyn Converting Enzyme (ACE) method. Antioxidant test results showed that the methanol extract from S. samarangense stem bark had the highest antioxidant activity with IC50 was 83.06 μg/mL. Antihypertension test of methanol extract from S. samarangense stem bark obtained IC50 ACE was 61.56 μg/mL. Based on the IC50 value, it shows that S. samarangense stem bark has potential as a source of antioxidant compounds as well as a source of antihypertension compounds. Keywords: Syzygium samarangense, stem bark, antioxidant, antihypertension

Antioxidant Isosantosimol from Garcinia griffithii Stem Bark Elfita Elfita; Supriyatna Supriyatna; Husein H. Bahti; Dachariyanus Dachariyanus
Jurnal ILMU DASAR Vol 9 No 2 (2008)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (229.764 KB)

A polyisoprenylated benzophenone, isosantosimol had been isolated from the stem bark of Garcinia griffithii T. Anders. The structure of these compound was determined on the basis of spectroscopic data including UV, IR, 1H NMR, 13C NMR, HMQC, HMBC and COSY, as well as by direct comparison with those of reported data. The antioxidant activity of this compound was observed using radical scavenging 1,1-diphenyl-2-picryl hydrazyl (DPPH) model systems.

Berat Larva Spodoptera litura dan Luas Daun Cabai yang Dimakannya setelah Diaplikasikan Berbagai Isolat Jamur Entomopatogen Mimma Gustianingtyas; Siti Herlinda; Erise Anggraini; Arsi Arsi; Suwandi Suwandi; Hasbi Hasbi; Marieska Verawaty; Arum Setiawan; Elfita Elfita; Suparman Suparman; Harman Hamidson; Khodijah Khodijah
Seminar Nasional Lahan Suboptimal 2020: Prosiding Seminar Nasional Lahan Suboptimal ke-8 “Komoditas Sumber Pangan untuk Meningkatkan K
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Gustianingtyas M, Herlinda S, Anggraini E, Arsi A, Suwandi S, Hasbi H, Verawaty M, Setiawan A, Elfita E, Suparman S, Hamidson H, Khodijah K. 2020. Weight of spodoptera litura larvae and chili leaf area eaten after treated with some entomopathogenic fungal isolates. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober 2020. pp. xx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Spodoptera litura is one of the important insect pests on chili in Indonesia that attacks the vegetative and generative phases. This study aimed to observe the effect of the entomopathogenic fungal isolates explored from the low and highlands on the decrease in feed and weight of S. litura larvae. The experiment was arranged in a Randomized Block Design (RBD) with 52 treatments consisted of 29 isolate of Beauveria bassiana and 23 isolate of Metarhizium spp. applied on 25 second instar of S. litura per replicate. The results showed that the body weight of larvae applied to B. bassiana isolates on the first day of observation was significantly different from the control. The body weight of larvae on the first day of observation of BJgTs isolates (0.30 g) and Bby (0.31 g) was significantly different and lower than the other treatments. The body weight of larvae applied isolate Metarhizium spp. significantly different from the controls. The body weight of larvae on the 9 day applied isolates MPdMs2 (4.74) and MKbTp2 (4.63) was significantly different from other treatments, the leaf area eaten was significantly different from the 7 day to the 12 day of observation. From this research, it can be concluded that B. bassiana isolates coded BJgTs and Bby, isolates Metarhizium spp. MPdMs2 and MKbTp2 codes are isolates that have an effect on reducing feed and larvae weight and cause changes in behavior of S. litura larvae.

Flavon Compound from The Ethyl Acetate Extract of The Stem of Supit (Tetracera indica Merr.) Muharni Muharni; Elfita Elfita; Riska Adillah; Heni Yohandini; Julinar Julinar
Molekul Vol 13, No 1 (2018)
Publisher : Universitas Jenderal Soedirman

Tetracera indica Merr. in Musi Banyuasin, is one of the traditional medicine used by the community for the treatment of kidney stone disease and gout, but this claim is not recorded in the treatment of kidney stones and gout in Indonesia. In this study, isolation of antioxidant compound from ethyl acetate extracts of supit (Tetracera indica) was done. The isolation was carried out through step gradient polarity extraction, and separated and purified by chromatography technique. The determination of the structure of the isolated compound was performed by spectroscopy method including UV, IR, and NMR 1D and 2D, and antoxidant activity was determined by DPPH method. An active antioxidant compound was isolated from ethyl acetate extract in form of yellow solid (15 mg). Based on spectroscopic analysis the isolated compound was 5,8-dihydroxy-7-methoxyflavone. The compound showed strong antioxidant activity (IC50 8.25 μg/mL) higher than standard ascorbic acid (IC50 11.3 μg/mL). This data concluded that efficacy of supit (Tetracera indica) for the treatment related to antioxidant activity (uric acid) is proven by the identification of one antioxidant compound of this plant.

Komponen Utama Fraksi Aktif Antibakteri dari Kulit Batang Kandis Gajah (Garcinia griffithii T. Aners) Terhadap Bakteri Uji Penyebab Diare Escherichia coli dan Shigella dysentriae Elfita Elfita; Supriyatna Supriyatna; Husein H. Bahti; Dachriyanus Dachriyanus
PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia) Jurnal Pharmacy, Vol. 05 No. 02 Agustus 2007
Publisher : Pharmacy Faculty, Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2140.554 KB)

Penelitian ini bertujuan untuk mengetahui aktivitas antibakteri komponen utama fraksi aktif kulit batang kandis gajah (Garcinia griffithii) terhadap Escherichia coli dan Shigella dysentriae. Pengujian aktivitas antibakteri dilakukan dengan metode difusi cakram. Identifikasi terhadap senyawa hasil isolasi dilakukan berdasarkan uji fotokimia, spektroskopi ultraviolet dan inframerah. Hasil penelitian menunjukkan bahwa fraksi heksana merupakan fraksi teraktif, diikuti oleh fraksi diklorometana dan metanol. Fraksi F1 heksana merupakan komponen utama, berupa senyawa steroid. Komponen utama ini memiliki gugus hidroksi, hidrokarbon alifatik, ikatan rangkap terisolasi, rangka dasar siklopentana, isopropil, dan ikatan karbon-oksigen.

Xanton dari Fraksi Aktif Antioksidan Kulit Batang Kandis Gajah (Garcinia griffithii T. Anders) Elfita Elfita; Supriyatna Supriyatna; Huesin H Bahti
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 24, No 1 (2007)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2007.24.1.151

Garcinia is a large genus of polygamous trees or shrubs, distributed in the tropical Asia, Africa, and Polynesia, and is a rich source of bioactive molecules including xanthones, flavonoids, benzophenones, lactones, and phenolic acid. In the present study, an attempt was made to evaluate the antioxidant activity from stem bark of G. griffithii using radical scavenging 1,1-diphenyl-2-picryl hydrazyl (DPPH) model systems. Xanthone from antioxidant active fraction had been isolated and this compound had been identified by the use of ultraviolet (UV), infrared (IR), and proton nuclear magnetic resonance (1H-NMR) spectroscopy.

Penelusuran Aktivitas Antibakteri dari Kulit Akar Tumbuhan Medang Seluang (Litsea spathulata) terhadap Bakteri Uji Escherichia coli dan Shigella dysentriae Munawar Munawar; Elfita Elfita
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 24, No 1 (2007)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2007.24.1.152

Screening for antibacterial activity from root bark of Litsea spathulata had been done. Antibacterial test on each fraction showed that hexane had the highest activity followed by ethyl acetate and methanol. Major compound from antibacterial active fraction had been isolated. Identification of this compound was carried out applying phytochemistry assay and spectroscopic methods, i.e. ultraviolet (UV), infrared (IR), and Gas Chromatography- Mass Spectroscopic (GC-MS). Minimum inhibiting concentration (MIC) value of the active fraction was 780 mg/mL to Escherichia coli and 860 mg/mL to Shigella dysentriae.

Malachite Green Removal by Zn/Al-citrate LDHs in Aqueous Solution Nurlisa Hidayati; Risfidian Mohadi; Elfita Elfita; Aldes Lesbani
Science and Technology Indonesia Vol. 5 No. 2 (2020): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Co-Authors . Dachriyanus Abd. Rasyid Syamsuri Aldes Lesbani Arsi Arsi Arum Setiawan At panagan At panagan Dachariyanus Dachariyanus Erise Anggraini Harman Hamidson hasbi hasbi Heni Yohandini Huesin H Bahti Husein Hernadi Bahti IHSAN IVANTRI Julinar Julinar Khodijah Khodijah Marieska Verawaty Mimma Gustianingtyas Muharni Muharni Muharni Muharni Munawar Munawar Nurlisa Hidayati Risfidian Mohadi Riska Adillah Seni Metasari SITI HERLINDA suparman suparman Supriyatna Supriyatna Suwandi Suwandi

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