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FTIR Spectroscopic Analysis and Antioxidant Activity of Extracts and Fractions from Impatiens balsamina L. Leaves
Secondary metabolites in Impatiens balsamina L. leaves notably flavonoids, phenolics, naphthoquinones, and glycosides, exhibited high structural diversity, supporting both its traditional medicinal applications and... -
SINTESIS DAN KARAKTERISASI NANOPARTIKEL ZnO DOPED Cu2+ MELALUI METODA SOL-GEL
Penelitian mengenai sintesis nanopartikel ZnO undoped dan doped Cu 2+ telah dilakukan melalui metoda sol-gel, dengan menggunakan zink (II) asetat dihidrat sebagai prekursor, isopropanol sebagai pelarut, dan... -
The Influence of NaOH Activator Concentration on the Synthesis of Activated Carbon from Banana Peel for Pb(II) Adsorption
Lead has been known as one of the heavy metals with a high adverse effect to the environment and human health. This study reports the activity of activated carbon from biomass of banana peel as an adsorbent to... -
The Adsorption of Mercury from Aqueous Solution on Durian (Durio zibethinus) Seed Immobilized Alginate
The increasing pollution of toxic heavy metals in the environment is an important issue worldwide. Heavy metal ions such as mercury have attracted special attention because of their high toxicity and long half-life... -
DEGRADASI METHYLENE BLUE MENGGUNAKAN KATALIS ZnO-PEG DENGAN METODE FOTOSONOLISIS
Study about degradation of methylene blue using photosonolysis method has been done. This research aims to investigate effect of variation radiation times, pH, and concentrations doping PEG (polyethylene... -
DEGRADASI METIL VIOLET MENGGUNAKAN KATALIS ZnO-TiO2 SECARA FOTOSONOLISIS
Research on the degradation of methyl violet has been done by using photosonolysis method. The purpose of this study is to determine how much time the optimum, optimum pH and the amount of doping TiO2 optimum... -
Methanol Extract of Melastoma malabathricum Leaves as Eco-Friendly Corrosion Inhibitor for Mild Steel in Sulfuric Acid
Methanol extract of Melastoma malabathricum (MEMML) contains secondary metabolites such as phenolics and flavonoids. These compounds have OH groups that can interact with Fe contained in steel and form a thin layer... -
GRAFTING POLIPROPILENA DENGAN MALEAT ANHIDRIDA SEBAGAI PENGIKAT SILANG DENGAN INISIATOR BENZOIL PEROKSIDA
Padang 25171 (0751-7055053 – 081374388030) rachmihidayani@gmail.com ABSTRAK Telah dilakukan... -
Digestibility and Physicochemical Properties of Brown Rice and Black Glutinous Rice under a Combination of Heat-Moisture Treatments and Citric Acid
Brown rice and black glutinous rice are rich in nutrients and fiber the body needs. The difference between brown and black glutinous rice lies in the starch content, namely amylose, and amylopectin, which can affect... -
Characterization of Hesperidin-PEG 1000 Solid Dispersion Prepared by Freeze Drying Method
Hesperidin is a disaccharide-derivative bioflavonoid in BCS class II, insoluble in water but soluble in propylene glycol and polyethylene glycol, and its poor aqueous solubility may impair bioavailability,... -
PENGARUH WAKTU HIGH ENERGY MILLING TERHADAP KARAKTERISTIK NANOKAOLIN CAPKALA ASAL KALIMANTAN BARAT
Synthesis of nanokaolin from Capkala’s natural clay from Bengkayang, West Borneo has been studied. Modification of kaolin particles into nano size was done by high energy milling methods using HCl 2M activator... -
Synthesis of Nano alfa-Cellulose-Based Bioplastic from Empty Fruit Bunches of Palm Oil
Cellulose, as a renewable resource, has recently emerged as a primary focus for researchers aiming to develop sustainable biomaterials. FTIR spectra show that there is no significant difference between them.... -
Synthesis and Characterization of Sodium Aluminate from Aluminum and Sodium Hydroxide
The synthesis of sodium aluminate from aluminum and sodium hydroxide was successfully conducted to optimize its potential as a precursor for zeolite production. Aluminum was reacted with NaOH solution under... -
KARAKTERISASI PLASTIK BIODEGRADABEL DARI LDPE-g-MA DAN PATI TANDAN KOSONG SAWIT
Penelitian ini bertujuan untuk menghasilkan suatu plastik biodegradabel yang dapat terurai di alam, sehingga dapat menjadi salah satu solusi dalam penumpukan sampah plastik yang sulit diuraikan oleh alam.... -
Preparation and Characterization of Magnetite Fe3O4-Activated Carbon Composite as Adsorbent Cr(VI) Ion
Metal ion such as Cr(VI) is one toxic heave metal at the trace level, thus it is necessary to remove metal ion Cr(VI) ion environmental. The absorption of Cr(VI) ions was carried out using a Fe 3 O 4 magnetite... -
Isolation and Characterization of Flavonoid from Mimosa pudica
Indonesia has a rich biodiversity, including the putri malu plant ( Mimosa pudica L.) which is known to have secondary metabolites with medicinal potential but has not been fully utilized. The purpose of this work... -
Utilization of Dry Cocoa Pod Husks as an Antioxidant-Rich Herbal Drink
Cocoa ( Theobroma cacao L) production in Indonesian has increased every year, therefore more cocoa pod husks are produced. Currently, the use of cocoa pod husks is still very limited, even most farmers only dump the... -
Kaolinite Nanotubes as Support Catalysts of Sulfuric Acid (H2SO4) for Transesterification Reaction of Waste Cooking Oil into Methyl Ester for Biodiesel
This study aims to improve the catalytic performance of kaolinite by converting it into kaolinite nanotubes and utilizing it as a support for sulfuric acid catalysts. Analysis using XRD and TEM revealed that the...