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All Journal Indonesian Journal of Pharmaceutical and Clinical Research Journal of Pharmaceutical and Sciences.
Nasri Nasri
Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Sumatera Utara, Medan, 20155, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Health Professions Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health

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Potensi Aktivitas Antioksidan dan Antibakteri Ekstrak Etanol Daun Kari (Murraya koenigii) terhadap Propionibacterium acnes Nasri Nasri; Vera Estefania Kaban; Zulmai Rani; Nurul Suci; Imelda Ferendina; Chyntia Glori Tania
Journal of Pharmaceutical and Sciences JPS Volume 8 Nomor 4 (2025)
Publisher : Fakultas Farmasi Universitas Tjut Nyak Dhien

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36490/journal-jps.com.v8i4.881

Abstract

Indonesia is renowned for its rich natural resources, particularly medicinal plants with significant therapeutic potential. This study examined how the ethanolic extract of curry leaves (Murraya koenigii) can act as an antioxidant and antibacterial agent against Propionibacterium acnes, the primary cause of acne vulgaris. This study used phytochemical screening to identify secondary metabolites, such as alkaloids, flavonoids, tannins, saponins, and glycosides, which are associated with biological activities such as killing bacteria and protecting cells from damage. The DPPH method for testing antioxidants showed that the extract had an IC50 value of 45.88 mg/L, which is not significantly different from quercetin as a reference, at 23.7 mg/L. This result is still significant for the strong antioxidant category. We assessed antibacterial efficiency using a disc diffusion technique, which showed a zone of inhibition corresponding to the extract concentration. The widest zone of inhibition, measuring 17.77 ± 0.15 mm, was recorded at a concentration of 250 mg/mL, classifying its activity as strong by existing standards. These findings underscore the extract's promise as a natural acne therapy, addressing bacterial growth and oxidative stress. Furthermore, these results support the development of safe and efficacious pharmaceutical or cosmetic products derived from natural components. Future investigations should examine synergistic formulations and enhance bioavailability to optimize therapeutic outcomes.
Optimizing Carrageenan-Based Moisturizers: From Kappaphycus alvarezii Extraction to Formulation Nurul Suci; Alfia Rahmi; Nasri Nasri; Vera Estefania Kaban
Indonesian Journal of Pharmaceutical and Clinical Research Vol. 8 No. 02 (2025): Indonesian Journal of Pharmaceutical and Clinical Research
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/idjpcr.v8i02.18124

Abstract

Carrageenan, a sulfated polysaccharide extracted from red seaweed (Kappaphycus alvarezii), possesses a high water-holding capacity and has been widely investigated for its potential application as a skin moisturizing agent. This study aimed to formulate isolated carrageenan into a topical cream and to evaluate its physicochemical characteristics and moisturizing efficacy. Carrageenan was isolated through sequential soaking, decantation, extraction, isolation, drying, and milling processes. The isolated material was characterized in terms of solubility, viscosity, loss on drying, and Fourier transform infrared (FTIR) spectroscopy. Cream formulations containing carrageenan at concentrations of 2.5%, 5%, 7.5%, and 10% (w/w) were prepared and compared with a 2% glycerin cream and a blank control. Physical quality evaluations included homogeneity, pH, emulsion type, stability testing for 12 weeks, skin irritation assessment, and in vivo moisturizing activity in 18 human volunteers. The isolated carrageenan complied with the requirements of USP XXX. All carrageenan-based creams exhibited acceptable homogeneity, skin-compatible pH, and satisfactory physical stability throughout the storage period. No signs of skin irritation were observed. Moisturizing efficacy increased proportionally with carrageenan concentration, with the 2.5% carrageenan cream demonstrating a moisturizing effect comparable to that of the 2% glycerin formulation. These findings support the potential of carrageenan derived from Kappaphycus alvarezii as an effective natural moisturizing agent in topical cream formulations.
ANTIOXIDANT ACTIVITY OF HYDROALCOHOLIC EXTRACT OF GREEN GEDI LEAVES (Abelmoschus manihot L.) USING CUPRAC (CUPRIC ION REDUCING ANTIOXIDANT CAPACITY) METHOD Vera Estefania Kaban; Nasri Nasri; Nurul Suci; Muhammad Fauzan Lubis; Zulmai Rani; Haris Munandar Nasution
Indonesian Journal of Pharmaceutical and Clinical Research Vol. 8 No. 02 (2025): Indonesian Journal of Pharmaceutical and Clinical Research
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/idjpcr.v8i02.20644

Abstract

Free radicals induce oxidative stress, which plays a pivotal role in the pathogenesis of various degenerative diseases. Abelmoschus manihot L., locally known as green gedi, is recognized for its rich secondary metabolite content with potential antioxidant properties. This study aimed to evaluate the antioxidant activity of the hydroalcoholic extract of green gedi leaves using the Cupric Ion Reducing Antioxidant Capacity (CUPRAC) method. Extraction was conducted via maceration using a 90% hydroalcoholic solvent, followed by comprehensive phytochemical screening and simplicia characterization. The antioxidant capacity was quantified by determining the IC50 value through linear regression analysis of inhibition percentage versus concentration. Phytochemical analysis confirmed the presence of alkaloids, flavonoids, glycosides, saponins, tannins, and triterpenoids/steroids. The hydroalcoholic extract exhibited "very strong" antioxidant activity, yielding an IC50 value of 41.65 ± 0.30 µg/mL. Although this potency was slightly lower than the pure quercetin standard, it demonstrates a significant capacity for free radical neutralization. These findings underscore the potential of Abelmoschus manihot L. as a robust natural antioxidant source, supporting its further development into phytopharmaceuticals or functional health supplements for the prevention of oxidative stress-related conditions.
Co-Authors Alfia Rahmi Chyntia Glori Tania Haris Munandar Nasution Imelda Ferendina Muhammad Fauzan Lubis Nurul Suci Vera Estefania Kaban Vera Estefania Kaban Zulmai Rani