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All Journal VALENSI CHEMISTRY PROGRESS Chemica: Jurnal Ilmiah Kimia dan Pendidikan Kimia KOVALEN: Jurnal Riset Kimia Indonesia Chimica Acta Panrita Abdi - Jurnal Pengabdian pada Masyarakat Communications in Science and Technology Chemistry Indonesian Journal of Chemical Research Molekul: Jurnal Ilmiah Kimia
Yusafir Hala
Chemistry Department, Mathematics And Natural Sciences, Hasanuddin University, Perints Kemerdekaan Street Km 10, Tamalanrea, Makassar
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Environmental Science Materials Science & Nanotechnology Other

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Mesoporous Silica MCM-48 as Chloramphenicol Adsorbent Taba, Paulina; Jannah, Miftahul; Hala, Yusafir
Indonesian Journal of Chemical Research Vol 8 No 3 (2021): Edition for January 2021
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2021.8-mif

Abstract

This study is aimed to determine the potential use of MCM-48 to adsorb chloramphenicol pollution. Chloramphenicol adsorption was conducted at various times contact and concentration. Adsorption isotherm was studied by comparing Langmuir and Freundlich adsorption isotherm. The results showed that chloramphenicol adsorption was suited to Freundlich isotherm with an optimum contact time of 80 minutes
Application of Rice Field Snails (Pila ampullacea) Extract as an Alternative Substitute for Protein Sources in Export-Quality Catfish Feed (Clarias sp.) Kasim, Syahruddin; Hala, Yusafir; Sri Rahayu, Lulu
Indonesian Journal of Chemical Research Vol 11 No 2 (2023): Edition for September 2023
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598//ijcr.2023.11-sya

Abstract

The freshwater fishery commodity that ranks at the top in total production in Indonesia, and its high domestic consumption, is catfish (Clarias sp.). One of the efforts to provide alternative feeds is by using rice field snails (Pila ampullacea) due to their high protein content. This study aims to determine the content of P. ampullacea feed and its application as an alternative protein source in export-quality Clarias sp. The feed was prepared by combining P.ampullacea flour, rice bran, and corn flour in a ratio of 3:1:1. Analysis of water content was conducted using the weight reduction method, ash content using the ashing method, protein content using the Kjeldahl method, and fat content using the soxhletation method. The analysis results showed that P. ampullacea had water content of 7.97%, ash content of 10.36%, protein content of 50.17%, and fat content of 4.16%. Meanwhile, the P.ampullacea feed had water content of 10.49%, ash content of 8.26%, protein content of 48.74%, and fat content of 3.6%. The results indicated that the application of P.ampullacea to Clarias sp. led to an increase in protein and fat content every week, the levels found in the commercial feed used.
Green synthesis of copper oxide (CuO) nanoparticles using Anredera cordifolia leaf extract and their antioxidant activity Munandar, Nurharis; Kasim, Syaharuddin; Arfah, Rugaiyah; Basir, Djabal Nur; Hala, Yusafir; Zakir, Muhammad; Natsir, Hasnah
Communications in Science and Technology Vol 7 No 2 (2022)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.7.2.2022.1004

Abstract

Our present study describes the green synthesis of copper oxide nanoparticles (CuONPs) using a leaf extract from Anredera cordifolia (AC). The presence of flavonoids, saponins, and alkaloids in the plant extract was confirmed by phytochemical analysis, and these chemicals can be used as reducing, stabilizing, and capping agents. UV-Vis Spectrophotometry, XRD, FT-IR, and SEM-EDS were used to characterize the CuONPs. The UV-Vis spectroscopy of the biosynthesized CuONPs revealed an absorption peak at 325 nm. The XRD graph also revealed that the Debye-Scherrer formula observed an average crystalline size of around 43.47 nm. EDS analysis confirmed the composition and purity of CuONPs. The presence of functional groups -OH, C=O, and C-O triggers the synthesis of CuONPs, according to FT-IR analysis. Furthermore, the CuONPs antioxidant property inhibited free radicals as antioxidants with an IC50 value of 34.20 g/mL.
Co-Authors Abdul Karim Abdul Wahid Wahab Abdul Wahid Wahab Ahyar Ahmad Andi Muhammad Anshar Arfah, Rugaiyah Arfah, Rugaiyah A. Astina Tambung Astina Tambung, Astina Djabal Nur Basir Emma Suryati Emma Suryati Firdaus . Harningsih Karim Hasnah Natsir Indah Raya Karuniawati Azis Kasturiasih, Ni Putu Khairunnur, Siti Maming Maming . Miftahul Jannah Muh. Zulkifli Jufri Muh. Zulkifli Jufri, Muh. Zulkifli Muhammad Zakir Muhammad Zakir Munandar, Nurharis Musa Ramang Mutmainnah Mutmainnah Nunuk Hariani Soekamto Nuritasari Azis Nursiah La Nafie Nursiah La Nafie Paulina Taba Sri Rahayu, Lulu Syaharuddin Kasim Syahruddin Kasim Triana Febrianti