Article Per Year (5 Year)
p-Index From 2021 - 2026
0.983
P-Index
This Author published in this journals
All Journal Indonesian Journal of Agricultural Research Narra J Cognitionis Civitatis et Politicae Research of Scientia Naturalis
Sultana, Sharmin
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Physics Public Health Social Sciences Veterinary

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
Correlation of Antioxidant Properties Between Immature and Mature Okra (Abelmoschus Esculentus) Fruits Nazri, Miza Badriah; Azlan, Azrina; Sultana, Sharmin; Yahya, Rozita
Indonesian Journal of Agricultural Research Vol. 7 No. 1 (2024): InJAR, Vol. 7, No. 1, March 2024
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v7i1.13351

Abstract

This study aimed to assess and compare the antioxidant activity and content (total flavonoid levels and total phenolic) of mature and immature okra. The antioxidant activity of okra fruits was assayed using four methods, namely: Aluminium Chloride Colorimetric assay, Folin-Ciocalteu assay, 1, 1-diphenyl-2-picrylhydrazyl (DPPH), and Reducing Antioxidant Power assay (FRAP) assays. The immature, mature, and very mature okra samples (less than 8 days, 10-15 days, and more than 20 days, respectively) were extracted using two different solvents (65% ethanol and water). The sample that was extracted with mature ethanol had the highest Total Phenolic Content (TPC) at 21.564 ± 1.635 mg GAE/g, while the sample that was extracted with extremely mature ethanol had the highest TFC at 54.391 ± 8.224 mg QE/g. The mature 65% ethanolic extracted sample showed the lowest IC50 value of DPPH scavenging activity (0.920± 0.096 mg/ml), and the mature ethanol extracted sample had the highest FRAP value (232.018± 5.337 μmol Fe2+/g). These studies showed that ethanolic extracts of mature Abelmoschus esculentus had higher antioxidant content and activity than okra water extracts. Based on the DPPH Radical Scavenging Assay revealed favourable associations between TPC (r = 0.860), TFC (r = 0.742), and antioxidant activity as evaluated by FRAP, demonstrating that both phenolics and flavonoids contributed to the extract’s antioxidant properties. Both TPC and TFC showed negative correlations with IC50 values (r = -0.766, r = -0.650, respectively). In conclusion, the mature okra fruits extracted with 65% ethanol give higher antioxidant content than the water extracts of okra fruits and potentially be used as a source of antioxidants rather than be discarded.
Antioxidant Properties of Lemuni Leaves (Vitex trifolia var. purpurea) in Different Concentrations of Ethanol-Water Solvent Extraction Goh, Wei Wen; Sultana, Sharmin; Azlan, Azrina
Indonesian Journal of Agricultural Research Vol. 7 No. 2 (2024): InJAR, Vol. 7, No. 2, July 2024
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v7i2.13357

Abstract

Vitex trifolia var. purpurea leaves (Lemuni leaves) is considered as a traditional medicine due to their antioxidant property. The antioxidant properties of Lemuni leaves depends on the concentration of ethanol-water solvent. Therefore, this current study intended to identify the antioxidant activity of Lemuni leaves (Vitex trifolia var. purpurea) in different concentrations of ethanol-water solvent extraction. Four ethanol-water concentrations were prepared (water extract (0% ethanol), 25% ethanol extract, 50% ethanol extract, and 75% ethanol extract). The antioxidant properties of Lemuni leaves were evaluated by Folin-Ciocalteu assay, aluminium chloride calorimetric method while 2,2’-diphenyl-1-picrylhydrazyl (DPPH) assay and 2,2-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assay were used to measure the antioxidant activities of the extracts. The experimental results showed that 75% ethanol extract had the highest (p<0.05) total phenolic content (94.69 ± 4.75mg GAE/g DW) and total flavonoid content (30.76 ± 2.85mg QE/g DW) significantly. The 75% ethanol extract also had the significantly lowest (p<0.05) IC50 value for DPPH (3.56 ± 0.11 mg/mL) and ABTS (2.01 ± 0.05 mg/mL) assays. Strong correlations were discovered between the total flavonoid content, total phenolic content with antioxidant properties of Lemuni leaves at different ethanol-water ratio by DPPH (r= -0.816; r= -0.824) and ABTS assays (r= -0.929; r= -0.920).The significantly elevated antioxidant properties of the 75% ethanol extract suggest promising applications in health supplements, pharmaceuticals, skincare products, biomedical research, and commercial ventures.
Pharmaceutical quality evaluation of marketed vildagliptin tablets in Bangladesh based on the United States Pharmacopeia specifications Islam, Md. Rabiul; Daria, Sohel; Ankhi, Arjina A.; Sultana, Sharmin; Rahman, Md. Ashrafur
Narra J Vol. 2 No. 2 (2022): August 2022
Publisher : Narra Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52225/narra.v2i2.84

Abstract

Continuous monitoring of pharmaceutical products is vital because it matters to human health. Here we aimed to assess the quality parameters of commercially available vildagliptin tablets in Bangladesh. We tested the tablets for the content uniformity, hardness, friability, disintegration, dissolution, and potency. Then, we fitted the dissolution data with kinetic models to investigate the release pattern of the studied brands. Moreover, we applied a mathematical model-independent approach to compare the dissolution profiles of the brands. The interchangeability was determined using difference and similarity factors. Weight variation, friability, and hardness were between 150.35±1.26 to 230.8±1.98 mg, 0 to 0.88%, and 47.3±5.09 to 108.1±1.92 N, respectively. All tablets disintegrated within 0.54±2.85 to 7.69±2.14 min in distilled water. The potency of tablets in 0.1 N HCl and PBS (pH 6.8) were between 97.67±2.58 to 105±0.95% and 99±4.63 to 105±1.65%, respectively. The drug release (%) in 0.1 N HCl and phosphate-buffered saline (PBS) (pH 6.8) after 60 min were between 99.37±1.80 to 111.09±0.64% and 96.59±3.52 to 109.57±0.53%, respectively. All the brands complied with the United States Pharmacopeia (USP) specification for physicochemical properties. Also, we observed the drug release patterns of vildagliptin tablets matched with different kinetic models. We found only one substitutable brand with the standard product regardless of the dissolution medium. In-vitro chemical equivalence is not always consistent with bioequivalence. Therefore, continuous evaluation of marketed products is essential to ensure the desired quality.
A Comparative Analysis of Anti-Corruption Institutions: The Case of Indonesia’s KPK and South Korea’s KICAC Wijaya, Wijaya; Hossain, Arif; Sultana, Sharmin
Cognitionis Civitatis et Politicae Vol. 2 No. 2 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The establishment of independent anti-corruption agencies (ACAs) is a primary global strategy for combating systemic corruption. Indonesia’s Corruption Eradication Commission (KPK) and South Korea’s former Korea Independent Commission Against Corruption (KICAC) represent two prominent yet divergent models in Asia, both emerging from post-authoritarian transitions. Understanding their distinct institutional trajectories provides crucial insights into the dynamics of anti-corruption reform. This study conducts a comparative analysis of the institutional design, operational effectiveness, and political resilience of the KPK and KICAC to identify the determinant factors shaping their successes and challenges in fulfilling their mandates. A qualitative comparative case study approach was employed, analyzing foundational legal documents, official institutional reports, scholarly articles, and reputable media archives. The analysis focused on key variables including legal powers, degree of independence, resource allocation, and the prevailing socio-political contexts in which each agency operated. The findings indicate that the KPK’s comprehensive mandate, which includes investigative and prosecutorial powers, allowed for more high-profile enforcement actions compared to KICAC’s primary focus on prevention and policy coordination. However, this enforcement power also made the KPK a target of sustained political resistance, while KICAC faced challenges of relevance that eventually led to its institutional merger. The long-term success of an ACA depends not only on a robust legal mandate but, more critically, on sustained political support and strong institutional defenses against political co-optation. The divergent experiences of the KPK and KICAC offer vital lessons for designing and safeguarding effective anti-corruption institutions worldwide.
Photocatalytic Degradation of Batik Dye Effluents Using Zinc Oxide (ZnO) Nanorods Synthesized Via a Green Chemistry Approach Huda, Nurul; Sultana, Sharmin; Mabuza, Dineo
Research of Scientia Naturalis Vol. 2 No. 6 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/scientia.v2i6.2924

Abstract

The discharge of batik dye effluents into water bodies is a significant environmental concern, as it contains toxic azo dyes that are difficult to degrade. Traditional methods for dye removal, such as chemical oxidation and adsorption, often have limitations in terms of cost, efficiency, and environmental impact. This study aims to investigate the photocatalytic degradation of batik dye effluents using zinc oxide (ZnO) nanorods synthesized through a green chemistry approach. ZnO nanorods were synthesized using natural plant extracts as reducing agents, offering an environmentally friendly and cost-effective alternative to conventional methods. The photocatalytic performance of the synthesized ZnO nanorods was evaluated by exposing them to batik dye effluents under UV light. The effects of parameters such as pH, catalyst dosage, and UV exposure time were studied. The results showed that ZnO nanorods exhibited significant degradation of the dye, with optimal performance achieved at pH 5, a catalyst dosage of 0.2 g, and 120 minutes of UV exposure. The nanorods demonstrated high reusability, making them suitable for long-term application in wastewater treatment. This study highlights the potential of ZnO nanorods synthesized via green chemistry as an efficient, eco-friendly solution for treating batik dye effluents, offering a sustainable alternative to traditional wastewater treatment methods.
Co-Authors Ankhi, Arjina A. Azlan, Azrina Daria, Sohel Goh, Wei Wen Hossain, Arif Mabuza, Dineo Md. Rabiul Islam Nazri, Miza Badriah Nurul Huda Rahman, Md. Ashrafur WIJAYA WIJAYA, WIJAYA Yahya, Rozita