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All Journal Pharmaciana: Jurnal Kefarmasian JURNAL FARMASI DAN ILMU KEFARMASIAN INDONESIA Jurnal Layanan Masyarakat (Journal of Public Service) Berkala Ilmiah Kimia Farmasi Farmasis: Jurnal Sains Farmasi
Febri Annuryanti
Faculty Of Pharmacy, Universitas Airlangga
Humanities Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Education Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Public Health Social Sciences Other

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Journal : JURNAL FARMASI DAN ILMU KEFARMASIAN INDONESIA

 1 
Pengaruh Suhu dan Jumlah Penyeduhan terhadap Kadar Kafein Terlarut dalam Produk Teh Hijau Kering dengan Metode KCKT Febri Annuryanti; Masruratos Zahroh; Djoko Agus Purwanto
JURNAL FARMASI DAN ILMU KEFARMASIAN INDONESIA Vol. 5 No. 1 (2018): Jurnal Farmasi dan Ilmu Kefarmasian Indonesia
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (239.328 KB) | DOI: 10.20473/jfiki.v5i12018.30-35

Abstract

Pendahuluan: Teh adalah salah satu minuman yang paling banyak dikonsumsi di dunia dan memiliki khasiat bagi kesehatan. Selain memiliki manfaat, teh juga mengandung kafein yang dapat memberikan efek samping apabila dikonsumsi secara berlebihan. Efek samping yang ditimbulkan diantaranya insomnia, ansietas, takikardia dan napas yang cepat. Oleh karena itu, saat ini diinginkan teh dengan kandungan kafein yang rendah. Tujuan: Penelitian ini bertujuan untuk menentukan efek suhu dan jumlah penyeduhan terhadap konsentrasi kafein yang terlarut dari sampel kering teh hijau. Metode: Pada studi ini digunakan tiga macam suhu (50°C, 70°C, 100°C) dan tiga kali pengulangan penyeduhan. Kafein terlarut dianalisa dengan menggunakan kondisi KCKT sebagai berikut: kolom C-18-μbondapak, fase gerak metanol : air : asam asetat 2% v/v (30:65:5) dengan laju alir 0,45 mL/menit. Deteksi dilakukan pada panjang gelombang 272 nm. Parameter validasi yang dilakukan meliputi selektifitas, linieritas, akurasi, presisi, LOD dan LOQ. Seluruh parameter validasi memenuhi persyaratan yang telah ditetapkan. Hasil: Kadar kafein tertinggi diperoleh pada penyeduhan pertama pada suhu 100oC dan kadar kafein terendah ditemukan pada penyeduhan ketiga pada suhu yang sama. Kesimpulan: Berdasarkan hasil analisis, dapat disimpulkan bahwa suhu dan jumlah penyeduhan dapat mempengaruhi kadar kafein terlarut pada teh hijau.
Validated TLC-Contact Bioautography Method for Identification of Kanamycin Sulfate in Injection Preparation Susanti Susanti; Aprelita Nurelli Dwiana; Febri Annuryanti; Asri Darmawati; Isnaeni Isnaeni
JURNAL FARMASI DAN ILMU KEFARMASIAN INDONESIA Vol. 7 No. 1 (2020): JURNAL FARMASI DAN ILMU KEFARMASIAN INDONESIA
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jfiki.v7i12020.35-41

Abstract

Background: TLC-contact bioautography is one of an effective method for identification antibiotics, by which many antibiotics could be identification and determination simultaneously. Objective: To evaluate kanamycin sulfate in injection preparations based on its inhibitory activity against Escherichia coli ATCC 8739 as test organism. Methods: Sample and standard solutions were spotted onto TLC silica gel 60 F254 plate and developed in 10% potassium dihydrogen phosphate solutionas as mobile phase. The TLC-contact bioautography method was  validated according to USP guidelines by considering specificity, LOD, LOQ, linearity, accuracy and precision parameters. Results: The TLC-contact bioautography method was found to be high sensitivity with LOD of 0.75 µg and LOQ 2.31 µg. Linearity range of 100-350 µg/mL with r = 0.9993 and linear regression equation was y = 0.0019x + 0.0338. The recovery obtained from addition of blank samples by three different concentrations of kanamycin sulfate standard was 101.40% ¬+ 2.02%. The precision of the method was good with coefficient of variation 0.080%. The TLC-contact bioautography method was supported by determination of kanamycin sulfate potency ratio in the injection preparation and kanamycin sulfate standard using 3-3 design. Random block design obtained the potential for kanamycin sulfate in injection preparations compared to kanamycin sulfate standard was 100.6%.  Conclusion: The TLC-contact bioautography for kanamycin sulfate in injection preparations could be applied to the quality control analysis of the investigated drugs.
Co-Authors Achmad Toto Poernomo Aprelita Nurelli Dwiana Asri Darmawati Dewi Isadiartuti Djoko Agus Purwanto Isnaeni Khatimah, Siti Husnul Masruratos Zahroh Nadya Ambarwati Riesta Primaharinastiti Sudjarwo Sudjarwo Susanti Susanti Wisnu Prasetyo