cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Utami Irawati
Contact Email
uirawati@ulm.ac.id
Phone
+628115031771
Journal Mail Official
jstk@ulm.ac.id
Editorial Address
Jl. A. Yani KM. 36 Kompl. Unlam Banjarbaru
Location
Kota banjarmasin,
Kalimantan selatan
INDONESIA
Jurnal Ilmiah Berkala: Sains dan Terapan Kimia
Published by Universitas Lambung Mangkurat
ISSN : 14111616     EISSN : 25498215     DOI : http://dx.doi.org/10.20527
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry
Sains dan Terapan Kimia (Jurnal Ilmiah Berkala) published scientific articles in the Chemistry field which include, but not limited to, research in chemistry, theoretical chemistry, chemistry education, and applied chemistry. This journal also published review articles about the development of chemistry.
Arjuna Subject : Kimia(semua kategori) - Inorganic Chemistry
Articles 5 Documents
 1 
Search results for , issue "Vol 20, No 1 (2026)" : 5 Documents clear
Characteristics of Chitosan from Chitin Deacetylation Using Different NaOH Concentration and Evaluation of Its Solubility in Liquid Smoke Junaidi, Ahmad Budi; Hikmah, Nurul; Irawati, Utami; Hikmah, Nawwal; Rohman, Taufiqur
Jurnal Sains dan Terapan Kimia Vol 20, No 1 (2026)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v20i1.25118

Abstract

This research aimed to determine the effect of chitosan characteristics produced from the deacetylation of chitin with various concentrations of NaOH on its solubility in liquid smoke. Chitin produced from rajungan shell raw materials was deacetylated using 40% NaOH (K40%), 50% (K50%), and 60% (K60%). The resulting chitosan was then measured of its degree of deacetylation (DD), molecular weight (BM), and solubility in liquid smoke. The results showed that K40% had a DD of 56.99%, K50% had a DD of 72.86% and a BM of 149.1 kDa, also K60% had a DD of 82.87% and a BM of 102.6 kDa. The solubility of chitosan in 10% liquid smoke indicated that K40% was not dissolved, K50% was almost completely dissolved, and K60% was completely dissolved.
Network Pharmacology-Based Evaluation of Sungkai (Peronema canescens J.) Leaf Bioactive Compounds as Potential Therapeutics for Cervical Cancer Puspitasari, Ratih Dyah
Jurnal Sains dan Terapan Kimia Vol 20, No 1 (2026)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v20i1.24974

Abstract

Cervical cancer continues to pose a significant public health challenge, especially in low- and middle-income countries, largely due to persistent Human Papillomavirus (HPV) infection and the limited efficacy and safety of current therapies. Although flavonoid-based anticancer agents such as jaceosidin have shown anticancer activity, their clinical use is limited by low bioavailability and insufficient clinical evidence, underscoring the need for safer, more effective therapeutic options. This study utilized in silico and network pharmacology methods to assess bioactive compounds from Sungkai leaves (Peronema canescens J.). Seven peronemin derivatives were evaluated for drug-likeness, toxicity, and anticancer potential through ADMET predictions, bioactivity profiling, and protein target identification. The findings demonstrated that peronemin C1 and D1 possess activity against cervical cancer cell lines and exhibit favorable pharmacokinetic properties. Network pharmacology analysis identified 115 cancer-associated targets, with STAT3 identified as a central hub regulating cell proliferation, apoptosis, and inflammatory signaling. Functional analyses further indicated that peronemin compounds modulate key oncogenic pathways, supporting their multitarget potential. Collectively, these results indicate that peronemin compounds from Sungkai leaves, particularly C1 and D1, are promising candidates for the development of cervical cancer therapies targeting STAT3.
Analysis of Atmospheric Vertical Structure During Hail in Tangerang: A Comparative Study of ECMWF Model Data and Radiosonde Observations Prakoso, Dhanu; Kristianto, Aries
Jurnal Sains dan Terapan Kimia Vol 20, No 1 (2026)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v20i1.24961

Abstract

Hail is an extreme weather event in tropical regions with local characteristics, short duration, and difficult to predict precisely. The hail event in Tangerang on October 31, 2025, is an important anomaly to study in order to understand the atmospheric structure that triggers massive instability in urban areas. This study aims to identify the vertical conditions of the atmosphere through a comparative study between global numerical model data from the European Centre for Medium-Range Weather Forecasts (ECMWF) and in-situ Radiosonde observation data. The methodology used is a case study approach by integrating remote sensing data from the Himawari-9 Satellite and C-Band Weather Radar to validate the structure of storm cells. Thermodynamic parameters such as Convective Available Potential Energy (CAPE) and freezing level profiles are extracted using Python programming to evaluate the model's ability to represent atmospheric lability conditions. The results of this study are expected to provide a reference for weather forecasters regarding the effectiveness of using global model data as an alternative to limited observational data in the early detection of extreme convective phenomena in Indonesia.
Performance Evaluation of Bentonite–Nano SiO₂ as an Adsorbent in the Decolorization Process of Rhodamine B Jayanti, Regna Tri; Khairati, Miftahul; Nurmalasari, Enny; Rahayu, Puji; Nury, Dennis Farina; Ulandari, Okti; Trianita, Andhini Putri
Jurnal Sains dan Terapan Kimia Vol 20, No 1 (2026)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v20i1.24444

Abstract

Among various sources of industrial water pollution, effluents from printing, dyeing, and textile processes represent one of the most significant environmental threats. These wastewaters contain numerous toxic and hazardous substances that are difficult to biodegrade. This study investigates the synthesis, characterization, and adsorption performance of a Bentonite–Nano SiO₂ composite for the removal of Rhodamine B dye from aqueous solutions. The research was conducted in two main stages: the preparation of the Bentonite–Nano SiO₂ composite and the evaluation of its adsorption performance at various adsorbent concentrations and contact times. The composite was synthesized by dispersing nano-silica (15% w/w) into bentonite using ethanol as the solvent, followed by stirring, filtration, and drying processes. Characterization using Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR) confirmed successful modification. Adsorption tests showed that Rhodamine B removal efficiency increased with higher adsorbent concentration, reaching optimal conditions at 0.75% (w/v) with a removal efficiency of 90.2% after a contact time of 10–15 minutes. The enhanced adsorption performance was attributed to the larger surface area, higher porosity, and increased number of active sites resulting from the incorporation of nano-silica
Efficiency of Chitosan and Alum as Coagulants for Peat Water Treatment Ariyani, Dahlena; Irawati, Utami; Rohman, Taufiqur
Jurnal Sains dan Terapan Kimia Vol 20, No 1 (2026)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v20i1.25697

Abstract

Penelitian ini mengkaji efisiensi dari kitosan dan tawas sebagai koagulan untuk pengolahan air gambut. Dosis dan pH optimum koagulasi ditentukan berdasarkan penurunan turbiditas dan kadar senyawa organik dalam air gambut setelah dikoagulasi dengan kitosan dan tawas. Hasil penelitian menunjukkan bahwa dosis optimum untuk kitosan sebesar 5 mg/L dan tawas sebesar 15 mg/L dengan penurunan turbiditas sebesar 81,91% dan 76,28%. Koagulasi oleh kitosan dan tawas dipengaruhi oleh pH, dimana koagulasi oleh kitosan berlangsung optimum pada pH 8 dengan penurunan turbiditas sebesar 83,36%. Untuk tawas, pH optimum koagulasi adalah pada pH 7 dengan penurunan turbiditas sebesar 88,02%. Hasil penelitian menunjukkan bahwa tawas lebih efektif dibandingkan dengan kitosan dalam menurunkan kadar senyawa organik pada air gambut.

Page 1 of 1 | Total Record : 5

 1 

Filter by Year

2026 2026


Reset
Filter By Issues
All Issue Vol 20, No 1 (2026) Vol 19, No 1 (2025) Vol 18, No 2 (2024) Vol 18, No 1 (2024) Vol 17, No 2 (2023) Vol 17, No 1 (2023) Vol 16, No 2 (2022) Vol 16, No 1 (2022) Vol 15, No 2 (2021) Vol 15, No 1 (2021) Vol 14, No 2 (2020) Vol 14, No 1 (2020) Vol 13, No 2 (2019) Vol 13, No 1 (2019) Vol 12, No 2 (2018) Vol 12, No 1 (2018) Vol 11, No 2 (2017) Vol 11, No 1 (2017) Vol 10, No 2 (2016) Vol 10, No 1 (2016) Vol 9, No 2 (2015) Vol 9, No 1 (2015) Vol 8, No 2 (2014) Vol 8, No 1 (2014) Vol 7, No 2 (2013) Vol 7, No 1 (2013) Vol 6, No 2 (2012) Vol 6, No 1 (2012) Vol 5, No 2 (2011) Vol 5, No 1 (2011) Vol 4, No 2 (2010) Vol 4, No 1 (2010) Vol 3, No 2 (2009) Vol 3, No 1 (2009) Vol 2, No 2 (2008) Vol 2, No 1 (2008) Vol 1, No 2 (2007) Vol 1, No 1 (2007) More Issue