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All Journal Indonesian Journal of Pharmaceutical Science and Technology Jurnal Ilmiah Farmako Bahari Jurnal Pengabdian Masyarakat Farmasi : Pharmacare Society Jurnal Farmasi Galenika
Najihudin, Aji
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Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Health Professions Medicine & Pharmacology Public Health Social Sciences

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Journal : Indonesian Journal of Pharmaceutical Science and Technology

 1 
AKTIVITAS ANTIOKSIDAN EKSTRAK dan FRAKSI KULIT BATANG TRENGGULI (Cassia fistula L) DENGAN METODE DPPH Najihudin, Aji; Chaerunisaa, Anis; Subarnas, Anas
Indonesian Journal of Pharmaceutical Science and Technology Vol 4, No 2 (2017)
Publisher : Indonesian Journal of Pharmaceutical Science and Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (208.972 KB) | DOI: 10.15416/ijpst.v4i2.12354

Abstract

Kulit batang trengguli (Cassia fistula L) mengandung senyawa yang bersifat antioksidan yang dapat ditentukan dengan metode peredaman radikal bebas 1,1-Difenil-2- Pikrilhidrazil (DPPH). Penelitian ini dilakukan untuk mengetahui adanya peredaman radikal bebas DPPH oleh ekstrak etanol kulit batang trengguli (EEKBT), fraksi Etil asetat (FEAKBT), fraksi n-Heksan (FnHKBT), fraksi air (FAKBT) dan vitamin C sebagai pembanding. Identifikasi golongan senyawa dilakukan dengan penapisan fitokimia. Fraksinasi dilakukan dengan metode ekstraksi cair-cair dengan tingkat kepolaran yang berbeda. Aktivitas antioksidan dilakukan dengan peredaman warna radikal bebas DPPH menggunakan spektrofotometri UVVis. Penelitian menunjukkan bahwa Fraksi etil asetat memiliki aktivitas antioksidan paling baik dengan nilai IC50 3,980 μg/ml dibandingkan vitamin C 4,716 μg/ml. Sedangkan nilai IC50 ekstrak etanaol, fraksi n-heksan, fraksi air adalah 10,613 μg/ml, 38,904 μg/ml dan 7,636 μg/ml terhadap peredaman warna DPPH.Kata kunci: Antioksidan, Cassia fistula, Fraksinasi, metode DPPH
Selective Determination of Tetracycline in Broiler Chicken Meat by Molecularly Imprinted Polymer Suryana, Shendi; Najihudin, Aji; Elivania, Salma; Suherman, Meillia
Indonesian Journal of Pharmaceutical Science and Technology Vol 12 (2025): Vol. 12 Suppl. 2 (2025)
Publisher : Indonesian Journal of Pharmaceutical Science and Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/ijpst.v12i0.58889

Abstract

Tetracycline (TC) residues in poultry meat products can create antibiotic resistance in humans who consume them. Hence, sensitive analytical procedures to evaluate the quantities of tetracycline residues are required to assess the safety of these products for consumption. The study aimed to develop a sorbent using molecular imprinting technology to analyze tetracycline in chicken broiler meat products. The study used several tests and computational techniques to increase the effectiveness of screening for the best MIP systems. According to the bond energybased computational analysis, methacrylate acid (MAA) was the best functional monomer at a TC-to-MAA molar ratio of 1:6. The mixture of methanol and chloroform yielded the greatest Ka. The Job plot showed that a TC-to-MAA-molar ratio of 1:6 was best for synthesizing imprinted polymer in the mixture of methanol and chloroform. We generated MIPs using two alternative production methods: bulk (MIP1) and precipitation (MIP2). Adsorption capacity results revealed that MIP1 matches well with the Langmuir model, whereas MIP2 fits better with the Freundlich. MIP1 application produced recovery rates of 82,74±4.1% and MIP2 results of 92.14±3.2% for TC in spike-chicken meat. The outcomes of the selectivity test also demonstrated that MIP2 is superior to MIP1 and can recover TC from spiked chicken meat while coexisting with another antibiotic drug. The study’s findings indicate that MIP2 helps determine TC in spike chicken meat.
Co-Authors Anas Subarnas Auliasari, Nurul Azizah, Winanda Nur Chaerunisaa, Anis Elivania, Salma Faizah Min Fadhlillah Gazzali, Amirah Mohd Hindun, Siti Khoerunisa, Winna Nur Amalia RANTIKA, NOPI Siti Sopiah, Siti Siva Hamdani Suherman, Meillia Suryana, Shendi