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All Journal Jurnal Riset Kimia Journal of Pharmaceutical and Sciences.
Arfiandi, Arfiandi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health

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Penentuan Kadar Karbohidrat pada Biji Cempedak Hutan (Artocarpus champeden Lour.) dengan Metoda Tembaga-Iodometri Fadjria, Neri; Zulfisa, Zulfisa; Arfiandi, Arfiandi; Yolandari, Indah
Jurnal Riset Kimia Vol 10, No 2 (2019): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v10i2.327

Abstract

Forest Cempedak Seeds (Artocarpus champeden Lour.) Are types of seeds that are underutilized by humans. Forest Cempedak Seed Flour has nutritional content of carbohydrates, fats, and proteins that can be processed as ingredients for food. This study aims to determine the carbohydrate content of Forest Cempedak Seeds (Artocarpus champeden Lour.) Conducted by the Copper-Iodometric method using a luff schoorl reagent. From the research that has been carried out obtained levels of carbohydrates in Cempedak Seeds (Artocarpus champeden Lour.) of 38.016%. 
Eksplorasi Aktivitas Antimikroba Bakteri Endofit Daun Betadine (Jatropha multifida L.) terhadap Patogen Staphylococcus aureus Arfiandi, Arfiandi; Fadjria , Neri; Nofita, Dewi; Rahmadini, Mutia
Journal of Pharmaceutical and Sciences JPS Volume 8 Nomor 3 (2025)
Publisher : Fakultas Farmasi Universitas Tjut Nyak Dhien

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36490/journal-jps.com.v8i3.899

Abstract

Background: Antibiotic resistance has spurred the exploration of novel antibacterial agents, including endophytic bacteria from medicinal plants like Jatropha multifida L. (Betadine leaves), traditionally used as antiseptics. Objective: To assess the antibacterial activity of endophytic bacterial isolates from Betadine leaves against Staphylococcus aureus. Methods: A laboratory-based experimental study employing the paper disc diffusion method. Endophytic isolates were cultured in Nutrient Broth, and centrifuged supernatants were tested for inhibition zones compared to positive (chloramphenicol) and negative (Na.CMC) controls. Results: The endophytic isolate produced a 16.11 mm inhibition zone (moderate activity), while chloramphenicol showed 27.63 mm (strong activity). No inhibition was observed in the negative control. Conclusion: Endophytic bacteria from Betadine leaves exhibit potential as natural antibacterial agents, though their efficacy is lower than standard antibiotics. Further development requires active compound characterization and toxicity studies.
Analisis kadar amilosa pada pati jagung manis (Zea Mays L. Var. Saccharata) secara spektrofotometri UV-Vis Fadjria, Neri; Arfiandi, Arfiandi; Auliyah, Nabila Dhiyaul
Journal of Pharmaceutical and Sciences JPS Volume 7 Nomor 2 (2024)
Publisher : Fakultas Farmasi Universitas Tjut Nyak Dhien

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36490/journal-jps.com.v7i2.494

Abstract

Sweet Corn Starch (Zea mays L. var. saccharata) is composed of two fractions: amylose and amylopectin. The determination of amylose content in Sweet Corn Starch is carried out using the spectrophotometric method. This method employs a 2% iodine solution as a reagent, which reacts with starch to generate a coloured solution that can be measured using a spectrophotometer. The amylose content is quantified through visible spectrophotometry, resulting in a regression equation of y ̂ = 0.006 + 25.2x, with a coefficient of determination (R2) = 0.998 and a correlation coefficient (r) = 0.9989. The amylose content in Sweet Corn Starch is determined to be 28.65%, whereas the amylopectin content is found to be 71.35%. Furthermore, the analysis provides additional parameters: Standard Deviation (SD) = ± 0.0044, Detection Limit (BD) = 0.0005 mg/ml, and Quantity Limit (BK) = 0.0018 mg/ml. These parameters offer valuable insights into the quality and properties of the sweet corn starch sample.
Co-Authors Auliyah, Nabila Dhiyaul Fadjria, Neri Nofita, Dewi Rahmadini, Mutia Yolandari, Indah Zulfisa, Zulfisa