Vol. 9 No. 2 (2026): JULY 2026

Articles

• FTIR Spectra Analysis to Confirm the Epoxidation Reaction of Castor Oil

  Trilita Putri Halasson Sihite, Marham Sitorus

  198-202

  • PDF

• Antibacterial Activity of Blue Pea Flower (Clitoria ternatea) Acetone Extract Against Propionibacterium acnes and Citrobacter freundii Bacteria

  Tita Juwitaningsih, Hidayani

  203-213

  • PDF

• Development of Bio-battery from Pineapple Peel Waste (Ananas Comosus L. Merr) Using Table Salt (NaCl) as Ion Source and Tapioca Starch as Matrix

  Yoel Ezra Micael Ginting

  214-220

  • PDF

• Effect of Fermentation Time Variation on Electrical Energy Generation in Batteries Using Electrolyte Solutions from Orange (Citrus), Pineapple (Ananas comosus (L.) Merr), Watermelon (Citrullus lanatus), and Mixed Fruit Peels

  Adryansyah Anugrah Pratama

  221-227

  • PDF

• The Effect of Edible Coating Made from Vanname Shrimp (Litopenaeus vannamei) Shells with the Addition of Cinnamon as an Edible Film for Fruit Preservation

  Ali Hamzah Lubis

  228-233

  • PDF

• The Effect of Liquid Organic Fertilizer from Gamal Leaves (Gliricidia sepium) on the Growth of Cayenne Pepper (Capsicum frutescens L.) as a Natural Substitute for Urea

  Andhika Febrian Pulungan

  233-242

  • PDF

• Utilization of Watermelon Rind (Citrullus lanatus) for Bioethanol Production as Waste Treatment or Conversion of Waste into an Energy Source

  Dela Oktavianti

  243-249

  • PDF

• Production of Corncob (Zea mays L.) and Rice Husk (Oryza sativa) Briquettes Using the Pyrolysis Method as an Alternative Energy Source

  Giovani Mei Anggasta Telaumbanua

  250-255

  • PDF

• Utilization of Active Compounds in Plants as Botanical Pesticides for the Control of Mealybug (Pseudococcus lilacinus)

  Grandy Sihotang

  256-263

  • PDF

• Utilization of Sweet Potato Leaf Extract (Ipomoea batatas L.) as a Bioflocculant in Clean Water Treatment

  Hotman Saragi Napitu

  264-274

  • PDF

• Utilization Of Gelatin From Catfish (Clarias Gariepinus) Bones Using Acid Method As A Syrup Thickener

  Muhammad Farhan

  275-281

  • PDF

• Utilization Of Durian Skin (Durio Zibethinus) For Biobriket Production Using Pyrolysis Method As An Alternative Energy

  Immanuel Veron Silitonga

  282-287

  • PDF

• Isolation of Chitin from the Shell of the Blue Crab (Portunus pelagicus) and a Review of Its Potential as a Cholesterol - Lowering Agent

  Evatiara Sihotang, Saronom Silaban

  288-295

  • PDF

• The Preparation and Characterization of Silica Composite Adsorbent from Palm Oil Boiler Ash and Chitosan

  Therecia Ginting, Agus Kembaren

  296-302

  • PDF

• Effectiveness of Corn Cob (Zea mays L.) Activated Carbon Modified with Cetyl Trimethyl Ammonium Bromide (CTAB) in the Adsorption of Metanil Yellow

  Ramanda Fatwa, Ratna Sari Dewi

  303-311

  • PDF

• Characterization of Gandapura Oil by GC and Analysis of Nitration Product Structure Using FTIR Spectroscopy

  Theresia Novianti Marpaung, Marham Sitorus

  312-317

  • PDF

• Effect of Solvent Polarity on Extraction Yield and Phytochemical Profile of Carica papaya L. Seed Extracts

  Elsa Christine, Nora Susanti

  318-323

  • PDF

• Study of Thermal Oxidative Degradation of Asphalt Modified with Cyclic Natural Rubber-g-Maleic Anhydride Reactive Polymer

  khairunnisa afifah

  324-329

  • PDF

• Hydrothermal Production of Furfural from Corn Husk Biomass Using an AlCl₃–HCl Catalytic System

  Novia Kirana Maharani, Desi Karnisa, Dita Ariyanti, Meka Saima Perdani

  330-341

  • PDF

• Antioxidant Activity and Organoleptic Quality of Traditional Batak Dried Arsik Seasoning

  Pricilia Saruksuk Saruksuk

  342-348

  • PDF

• Antibacterial Activity of Ethanol Extract of Nettle Leaves against Cutibacterium acnes and Pseudomonas aeruginosa

  Zuhairiah Nasution, Fira Yunita, Murniaty Simorangkir, Saronom Silaban, Nora Susanti

  349-365

  • PDF

• Potential of Alkaloids Isolated from Benzoin Resin (Styrax benzoin)

  Mutiara Annisa

  366-373

  • PDF

• In Silico Evaluation of Nitrogen-Containing Tetrahydropyridine and Piperidine Metabolites Identified from Strobilanthes tonkinensis Lindau Leaves as Potential Antibacterial Agents

  Hestia Hairima, Dwi Sapri Ramadhan, Dian Wardana

  374-386

  • PDF

• Phytochemical Screening and Antioxidant Activity of Ethanolic Extracts of Young and Mature Butterfly Pea (Clitoria ternatea) Leaves Using the DPPH Method

  Amelia Dwi Putri

  387-400

  • PDF

• Zeolite Synthesis From Rice Husk Ash (Oryza Sativa L.) as an NH3 Adsorbent for the Making of Eco-Friendly Cat Litter

  Sri Murda Niati

  401-416

  • PDF

• Machine Learning–Driven Discovery of Dietary Polyphenol DPP-4 Inhibitors via Molecular Docking

  Nur Laily Harfita, Ahmad Faisal Nasution, Zuliana Amalia Amalia, Joceline Schellenberg W, Rahayu

  417-430

  • PDF

• Green Synthesis and Antibacterial Activity of Silver Nanoparticles Using Ethanolic Extract from Clerodendrum fragrans Leaves

  Murniaty Simorangkir, Indah Sitanggang, Floren Miani Sihotang, David Septian Sibarani

  431-440

  • PDF

• Determination of Lead (Pb) Content in Commercial Fruit Juice Drinks Using Atomic Absorption Spectroscopy with Standard Addition Method

  Yorfan Ruwindya, Desta Aulia Putri, Hana Mayarana, Tri Esti Purbaningtias

  442-452

  • PDF