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All Journal Jurnal Penelitian Farmasi Indonesia Jurnal Farmasi Sains dan Terapan (Journal of Pharmacy Science and Practice) Jurnal Sains dan Teknologi Farmasi Majalah Obat Tradisional JFIOnline
Amri Bakhtiar
Fakultas Farmasi Unand Padang.
Computer Science & IT Decision Sciences, Operations Research & Management Education Health Professions Medicine & Pharmacology Public Health

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Journal : Jurnal Sains dan Teknologi Farmasi

 1 
Development and Validation of Analysis Method For Anthraquinone by liquid Chromatography Tandem Mass Spectrometry Putra, Deddi Prima; Bakhtiar, Amri; Hajatri, Prima
Jurnal Sains dan Teknologi Farmasi Vol 19 No Supl1 (2017): Vol 19 Supplement 1, December 2017
Publisher : Fakultas Farmasi Universitas Andalas

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Abstract

Indonesia is one of the largest tea producer and exporter in the world. However, the European Union has issued Commission Regulation (EU) No.1146/2014 by setting the MRL (maximum residue limit) of anthraquinone in tea at 20 μg/kg, significantly limiting the amount of tea export from Indonesia to the European Union. Viewed from the side of the danger, especially for synthetic anthraquinone that is potential effect of human health then performed an analysis to determine the presence of anthraquinone in Indonesian tea. To find out anthraquinone concentrations in various tea products, anthraquinone was developed and validated analysis method using LC-MS/MS. anthraquinone was extracted from tea sample using dichlormethane with a soxhlet. Black tea and green tea samples were obtained from one of the tea plantation companies.The validated method was used for the determination of anthraquinone residues in black tea and green tea samples. Anthraquinone residues was detect in all of the test samples.
Optimasi Metoda Isolasi Katekin dari Gambir Untuk Sediaan Farmasi dan Senyawa Marker Rahmawati, Noveri; Bakhtiar, Amri; Putra, Deddi Prima
Jurnal Sains dan Teknologi Farmasi Vol 16 No 2 (2011)
Publisher : Fakultas Farmasi Universitas Andalas

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Abstract

Optimization studies out on isolation of catechin from gambier and pasta for the pharmaceutical and marker compounds have been carried. Gambier gambier and paste were obtained from the Medicinal Plant Garden Andalas University, Siguntur and Lima Puluh Kota. Isolation method used was non-purification method, pre-purification for gambier and fractination for pasta. The analysis performed included catechin solubility, melting point, maximum absorption, thin-layer chromatography, loss on drying, ash content, yield and determination of levels of catechin. Product which has the highest levels of catechins, the determination was continued by analysis of UV spectra and NMR. The best results for pharmaceuticals derived from Siguntur with pre-purification methods which resulted in yield 56.3% with 96.17% catechin content, whereas for a marker compound was obtained from gambier Siguntur pasta with fractionation method which yielded 12.13% with 97.96% of catechin level.
Identifikasi Senyawa Antioksidan dari Daun Dewa (Gynura Pseudochina (Lour.) Dc) Rivai, Harrizul; Bakhtiar, Amri; Nurdin, Hazli; Suyani, Hamzar; Weltasari, Dewi
Jurnal Sains dan Teknologi Farmasi Vol 17 No 1 (2012)
Publisher : Fakultas Farmasi Universitas Andalas

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Abstract

dentification of antioxidative compounds in God leaves [Gynura pseudochina (Lour.) DC] has been performed. The dried leaves were extracted by reflux consecutively with hexane, chloroform and methanol. Each of extract was concentrated using rotary vacuum evaporator. DPPH method was used to examine the antioxidant activity of the extract. The methanolic extract exhibited the strongest antioxidative activity. Then the methanolic extract was isolated by preparative paper chromatography method. The isolated compounds were screened for their antioxidative activity by DPPH method and characterized by chemical and spectroscopic methods. Results indicated that the compound 3’,4’,5,7-tetrahydroxy flavonol (quercetin) was the most active as antioxidant and can be used as marker in standardization of God leaves or its extract.
Co-Authors . Yanwirasti DAYAR ARBAIN Deddi Prima Putra Dewi Weltasari Dian Handayani Ellyza Nasrul Erizal Zaini Gaesari, Sherly Rahmah Hajatri, Prima Hamzar Suyani Harrizul Rivai Hazli Nurdin Noveri Rahmawati Vivi Anggia, Vivi Yufri Aldi