Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

0.778

P-Index

This Author published in this journals

All Journal JURNAL KIMIA SAINS DAN APLIKASI Jurnal Farmasi Sains dan Terapan (Journal of Pharmacy Science and Practice) As-syifaa Jurnal Farmasi Abdimas UNWAHAS : Jurnal Pengabdian Masyarakat UNWAHAS Jurnal Ilmiah Cendekia Eksakta Jurnal Kesehatan Kusuma Husada Jurnal Ilmiah Farmasi Simplisia

Devina Ingrid Anggraini

Prodi D3 Farmasi, Sekolah Tinggi Ilmu Kesehatan Nasional

Author-ID : 6233621

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Health Professions Immunology & microbiology Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences

Published : 11 Documents Claim Missing Document

Claim Missing Document

Articles

Title

Efektivitas Fotodegradasi Amoksisilin yang Dikatalisis dengan TiO2 dengan Keberadaan Ion Ag(I) Devina Ingrid Anggraini; I Pujilestari
Jurnal Kimia Sains dan Aplikasi Vol 20, No 3 (2017): Volume 20 Issue 3 Year 2017
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Pemakaian obat dan sediaannya secara intensif, selain memberikan keuntungan dalam pelayanan kesehatan juga memiliki efek sekunder yaitu akumulasi limbah yang tidak diinginkan. Akumulasi zat antibiotik seperti amoksisilin di perairan dapat menyebabkan resistensi. Di lingkungan, limbah amoksisilin dapat bersama-sama dengan limbah anorganik seperti ion Ag(I). Kajian tentang fotodegradasi dilakukan dengan menggabungkan cahaya ultraviolet dan partikel semikonduktor sebagai fotokatalis. Hal tersebut dilakukan untuk mengetahui pengaruh penyinaran, keberadaan ion Ag(I), dan kondisi optimum terhadap efektivitas fotodegradasi amoksisilin yang dikatalisis TiO2dengan kehadiran ion Ag(I). Proses fotodegradasi amoksisilin dilakukan dalam suatu reaktor tertutup dilengkapi dengan satu set alat pengaduk magnetik dan lampu UV. Hasil kemudian dianalisis dengan Spektrofotometer UV untuk mengetahui konsentrasi amoksisilin sisa dan Spektrofotometer Serapan Atom (SSA) untuk mengetahui konsentrasi ion Ag(I) sisa. Hasil penelitian menunjukkan bahwa amoksisilin yang terdegradasi meningkat dengan semakin lamanya waktu penyinaran karena lamanya kontak antara fotokatalis TiO2 dengan cahaya dan kontak antara amoksisilin dengan radikal •OH. Keberadaan ion Ag(I) meningkatkan hasil fotodegradasi amoksisilin karena rekombinasi radikal •OH yang berasal dari spesies hole dengan elektron tereksitasi dapat dicegah. Efektivitas fotodegradasi amoksisilin terjadi pada waktu penyinaran 90 menit, larutan amoksisilin 200 mg/L sebanyak 25 mL dengan penambahan ion Ag(I) 40 mg/L sebanyak 25 mL, dan TiO2 sebagai katalis sebanyak 20 mg. Pada kondisi tersebut fotodegradasi amoksisilin sebesar 32,40 % dan persen ion Ag(I) yang tereduksi sebesar 70,40 %.

Activity Test of Suji Leaf Extract (Dracaena angustifolia Roxb.) on in vitro cholesterol lowering Devina Ingrid Anggraini; Lily Fathrah Nabillah
Jurnal Kimia Sains dan Aplikasi Vol 21, No 2 (2018): Volume 21 Issue 2 Year 2018
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Cholesterol is a natural substance with physical characteristic similar to fat but has a steroidal group. The body requires cholesterol in normal amount; however, it will harm the body in excess amount. High cholesterol levels in the blood are dangerous because of the precipitation of cholesterol and other fatty substances resulting in atherosclerosis. Suji leaf (Dracaena angustifolia Roxb.) used as a natural dye has a high flavonoid content that is inferred to have cholesterol-lowering activity. This study aims to test the in vitro activity of suji leaf (Dracaena angustifolia Roxb.) extract in decreasing cholesterol level with various concentrations and to find the effective concentration (EC50). The method of extraction used was remaceration method with 70% ethanol solvent. Analysis of cholesterol-lowering activity was done by Lieberman-Burchard method by making variation of ethanol extract 400 ppm, 500 ppm, 600 ppm, 700 ppm, and 800 ppm. The results showed the percentage of cholesterol-lowering activity by 33.62%, 36.15%, 46.61%, 56.39% and 64.05% respectively. Value of EC50 activity of suji leaf extract is 632.50 ppm.

Pengaruh p-Klorofenol terhadap Efektivitas Fotoreduksi Ion Hg(II) yang Dikatalisis TiO2 Devina Ingrid Anggraini; Endang Tri Wahyuni; Mudasir Mudasir
Jurnal Kimia Sains dan Aplikasi Vol 11, No 2 (2008): Volume 11 Issue 2 Year 2008
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

The objective is to develop photoreduction method catalyzed by TiO2 for the decreasing Hg(II) concentration. Photocatalytic reduction was carried out in a closed reactor equipped with UV lamp, by irradiating and stirring a mixture of Hg(II) solution and TiO2 photocatalyst powder for a certain period of time. The amount of reduced Hg(II) by photoreduction was calculated by substracting initial Hg(II) concentration with unreduced one, which was determined using cold vapor atomic absorption spectrophotometry method. The result of the research indicated that the use of TiO2 photocatalyst has increased the effectiveness of Hg(II) photoreduction. In the photocatalysis process TiO2 exposured by photon energy could resulted in •OH radicals and electrons that can recombined in the same time. The presence of p-chlorophenol in the solution mixture increased the photoreduction effectiveness probably due to its capability in capturing •OH radicals.TiO2 decreases in its crystalinity up to 15.54 % after process.Keywords: photoreduction, Hg(II), TiO2, p-chlorophenol

Co-Authors Atur Semartini Desty Putri Pancawati Dwi Damayanti Eka Wisnu Kusuma Endang Tri Wahyuni I Pujilestari Libna Dima Pratama Lily Fathrah Nabillah Mudasir Mudasir Reggy Andani Siska Andriani Susilowati Susilowati Vita Anggun Cahyani

Title Search

Found 3 Documents Search Journal : JURNAL KIMIA SAINS DAN APLIKASI

Abstract

Abstract

Abstract

Title

Found 3 Documents
Search
Journal : JURNAL KIMIA SAINS DAN APLIKASI