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Stannum : Jurnal Sains dan Terapan Kimia
Published by Universitas Bangka Belitung
ISSN : 2714674X     EISSN : 27148173     DOI : https://doi.org/10.33019/jstk
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering
Jurnal Sains dan Terapan Kimia published research article, minireview/review, and short communication that included studies in Inorganic Chemistry, Organic Chemistry, Analitycal Chemistry, Biochemistry, Physical Chemistry, Computational Chemistry, Chemical Engineering, and Applied Chemistry.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 5 Documents
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Search results for , issue "Vol 7 No 1 (2025): April 2025" : 5 Documents clear
Pembuatan Pektin Dari Wortel dan Pemanfaatannya dalam Formulasi Pasta Gigi Al'farisi, Cory Dian; Mutamima, Anisa; Drastinawati, Drastinawati; Yelmida, Yelmida; Siahaan, Daniel Andica; Az Zahra, Alya
Stannum : Jurnal Sains dan Terapan Kimia Vol 7 No 1 (2025): April 2025
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v7i1.5053

Abstract

Pectin, a complex polysaccharide derivative, is abundantly found in various fruits and vegetables. Due to its gel-forming ability, pectin plays a crucial role in the production of diverse food products, including jam, jelly, fruit preparations for yogurt, fruit juice, and others. The primary aim of this research was to ascertain the yield and extract the pectin content from carrots and investigate the impact of incorporating different concentrations of pectin into toothpaste formulations, comparing them against the SNI 12-3524-1995 standard. In this study, concentrations of pectin in toothpaste formulations were varied at 2.5%, 3%, 3.5%, and 4%. Pectin characteristics, encompassing yield, moisture content, equivalent weight, and methoxyl content, were examined, alongside assessments of toothpaste formulation characteristics, including organoleptic evaluation, pH testing, and spreadability testing. The research findings revealed that 13 grams of dried carrot powder yielded 1.17 grams of pectin, resulting in a 9% yield, 6.7% moisture content, an equivalent weight of 717 g/gmol, and a methoxyl content of 9.3%. Toothpaste testing indicated pH values of 7.63, 7.7, 7.26, and 7.06 for concentrations of 2.5%, 3%, 3.5%, and 4%, respectively. Organoleptic evaluations for each concentration revealed a thick texture, light brown and brown color, and mint and mild mint aromas. Spreadability test results for concentrations of 2.5%, 3%, 3.5%, and 4% were 3.1 cm, 3 cm, 2.8 cm, and 2.8 cm, respectively. While increasing the concentration of carrot pectin did not significantly impact the pH, color, aroma, and texture of the toothpaste formulation, it led to a decrease in spreadability.
Analysis of Flavonoid content and Toxicity Test of Semambu Rattan Leaf Ethanol Extract (Calamus scipionum lour)with Brine Shirmp Lethality Test (BSLT) method Legasari, Leni; Rahmadona, Shevira Putri; Yani, Dwi Fitri; Oktasari, Ade
Stannum : Jurnal Sains dan Terapan Kimia Vol 7 No 1 (2025): April 2025
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v7i1.5062

Abstract

Semambu rattan is rattan that grows wild in the forest areas of Indonesia, especially in southern Sumatra, Kalimantan, and Sulawesi. This study aims to determine the % yield, phytochemical tests, levels of flavonoids and cytotoxicity of the ethanol extract of rattan semambu leaves using the BSLT method with Artemia salina leach test larvae. The yield % yield contained 9.36%, the phytochemical test of the ethanol extract of the semambu rattan leaves contained secondary metabolites of flavonoids, alkaloids, tannins, saponins, and steroids. The test results for the levels of flavonoids at a concentration of 1000 ppm obtained a value of 53.307 μg/ml and the toxicity test of the ethanol extract of rattan semambu leaves obtained an LC₅₀ 130.390 ppm which was toxic
Chitosan preparation from white shrimp shell (Litopenaeus vannamei) for Fe(III) removal from Pontianak municipal groundwater Khairi, Syahrul; Wijoyo, Raden Bayu Trisno; Radhiansyah, Lalu Yayan; Belanisa, Tivani; Rezeki, Sri
Stannum : Jurnal Sains dan Terapan Kimia Vol 7 No 1 (2025): April 2025
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v7i1.5566

Abstract

White shrimp shell (Litopenaeus vannamei) is one of the biomaterial sources to obtain chitin. Chitin could undergo deacetylation process through hydrolysis in strong base solution to produce chitosan. This research aims to determine the potential of chitosan as an environmentally friendly adsorbent for the treatment of groundwater containing high iron ions in Pontianak. The research was conducted in two main stages; obtaining chitosan from the chitin of white shrimp shells, and treating municipal groundwater sample that is high in iron ions content. To obtain chitosan, raw biomaterial chitin from white shrimp shell has been prepared by demineralisation and deproteination process and followed by the deacetylation. The deacetylation of chitin was carried out through hydrolysis reaction in three variation concentrations of aqueous NaOH (i.e 30%, 50%, and 70%-b/v). The measurement of deacetylation degree of chitosan was determined by acid-base titration method and FTIR method. The chitosan with the highest degree of deacetylation was obtained from 70%-b/v NaOH which were 87.4% and 69.0% by acid-base titration method and FTIR, respectively. The chitosan then was utilized in groundwater treatment. The results showed that the chitosan can be utilized as an adsorbent in the pre-treatment process of groundwater in reducing the iron ion content. Almost 40% iron ion were successfully immobilized when 2% (b/v) adsorbent was applied. These results lead to a sustainability of water resources in Pontianak so that city groundwater can be used as an alternative water source for the community.
Utilization of Organic Waste into Immunity Protein Products and Its Application in Broiler Chicken Growth Bahri, Syaiful; Berghuis, Nila Tanyela; Ambarwati, Yuli; Sari, Revita; Nurfaradina, Zaskia Ayu
Stannum : Jurnal Sains dan Terapan Kimia Vol 7 No 1 (2025): April 2025
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v7i1.5678

Abstract

This research is related to utilizing organic liquid waste to be processed into immune protein. The processing stages include a mixture of organic liquid waste in the form of garbage leachate, Zingiberaceae, Crude Palm Oil, beef animal fat, and old coconut water. Mixing was carried out by making two immune protein products that differed in composition and function including protim 1 and protim 2 in knowing the success of the product from the observation of the weight of broilers at harvest. Giving protim 1 in drinking produced broiler weights up to 18 days of the age of 707, 697, and 634 grams. The weight of broilers obtained from the provision of protim 2 in drinking until the end of harvest was 2732, 2670, and 2458 grams. The use of both protims was successfully tested by comparing broilers that did not use protim until harvest, resulting in weights of 1749, 2238, and 2338 grams. FCR and IP values for three broilers consuming both protims resulted in values of 0.66 and 11.34, respectively, with physical characteristics that were slightly hairy compared to broilers that did not consume protim.
The The Application of Silver Nanoparticles Synthesized Using Moringa Leaf extract for the Detection Mercury (II) Metal Ions Siregar, Nonny Cristine; Yanti, Demi Dama; Ashari, Arif; Aji, Abdul; Indarto, Indarto
Stannum : Jurnal Sains dan Terapan Kimia Vol 7 No 1 (2025): April 2025
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v7i1.6276

Abstract

The increasing demand for clean water sources aligns with the continuous growth of the human population and environmental challenges. Water is a fundamental necessity for sustaining life, and its quality must be maintained to ensure safe utilization. However, contamination by heavy metals significantly degrades water quality, rendering it unsuitable for human consumption and daily use. Among various detection methods, silver nanoparticles (AgNPs) have emerged as promising nanomaterials for identifying the presence of heavy metal ions in water sources, including mercury (II) ions (Hg²⁺). The detection mechanism is based on colorimetric changes that can be further analyzed using UV-visible spectrophotometry. In this study, silver nanoparticles were successfully synthesized via a green synthesis approach using Moringa oleifera leaf extract as a bioreducing agent. The optimal synthesis conditions were established at a precursor concentration of 2.5 mM, a reaction temperature of 50°C, and a synthesis duration of 90 minutes. The resulting AgNPs exhibited an average particle size of 103.8 nm and demonstrated stability for up to three days. Furthermore, the synthesized AgNPs showed high sensitivity in detecting mercury (II) ions at concentrations as low as 20 ppm, highlighting their potential application in water quality monitoring and environmental remediation.

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