Nigella sativa oil has been known to have potent anti-inflammatory activity. This research aimed to determine the anti-inflammation activity of Nigella sativa oil in a simple balm stick by topical ...application. The activity was checked using two methods: carrageenan-induced paw oedema and granuloma pouch on rats. The results showed that balm sticks which contained 10% Nigella sativa could overcome both acute and sub-acute inflammation showing by high oedema inhibition (60.64%), low leucocytes count (43.55% lower than control) as well as a notable TNF-α concentration (50% lower than control) on the inflamed area. In conclusion, topical application of a Nigella sativa balm stick was effective for both acute and sub-acute forms of inflammation.
The flesh of watermelon (Citrullus lanatus) contains carotenoid compounds that act as antioxidants. The purpose of this study was to determine the variation in the concentration of carbopol 940 on ...physical properties, irritation tests, and the stability of emulgel antioxidants against temperature and storage time. Evaluation of the physical properties of C. lanatus pulp extract emulgel includes organoleptic, homogeneity, dosage pH, dispersion, adhesion, emulsion type, viscosity as well as hedonic test and irritation test. Antioxidant stability testing of emulgel was carried out for 28 days at three temperature conditions: 4, 25, and 40°C and tested on days 0, 7, 14, 21, and 28 with the DPPH method. The results of the physical properties evaluation meet the requirements with pH values of 5.50–5.57, dispersion 5–6 cm, adhesion <4 seconds, viscosity 5624–15443 cPs, F2 and F3 hedonic tests are preferred by researchers, and irritation tests of all formulas show no irritation symptoms to all refiners. The results of antioxidant stability of emulgel after storage on the 28th day showed an average result of IC50 temperature of 4°C (112.4547 ± 0.1432 mg/L), 25°C (119.3170 ± 0.1966 mg/L), and 40°C (124.1554 ± 0.1317 mg/L). The results of stability analysis show that temperature and storage duration affect antioxidant stability. The higher the temperature and duration of storage, the antioxidant stability of emulgel decreases. Storage of C. lanatus flesh extract emulgel at 4°C was able to maintain antioxidant activity for 28 days of storage.
Carvedilol is widely prescribed for long-term hypertension treatment. It is rapidly absorbable by oral administration, but its bioavailability is merely about 20% in humans. Drug delivery is ...therefore imperative to overcome this weakness. One form of transdermal drug delivery system is a patch. Transdermal patch is composed of various systems, for instance, a reservoir that uses a rate control layer to manage the rate of drug release. This research aimed to observe the effect of using resin gum as the control of drug release rate on the physical characteristics and release of carvedilol in a transdermal patch. The patches were prepared in 5 formulas with different quantities of resin gum, namely 50, 100, 150, 200, and 250 mg. Afterward, they were evaluated physically, and their dissolution and diffusion rates were analyzed. The results showed that resin gum with concentrations of 150 mg and 200 mg was physically qualified for rate control. Besides, the results of dissolution and diffusion tests revealed that transdermal patches with 150 mg of resin gum exhibited the best drug release and penetration.
As a drug delivery system, ketoconazole microemulsion in virgin coconut oil (oil phase) is added with a thickening agent to create transdermal dosage form. This study aimed to compare the physical ...stabilities of ketoconazole microemulsions formed with different thickeners, namely Carbopol 934 and Carbopol 941. The formula used varying concentrations of Carbopol 934 and Carbopol 941, i.e., 0.15% and 0.25%. The stability was observed during eight-week storage in which the conditions were controlled by different degrees of temperature, i.e., 40C, 25-300C (room temperature), and 400C. The stability tests included organoleptic observation, pH, surface tension, viscosity, particle size, and zeta potential. Based on the Kruskal-Wallis test results, ketoconazole microemulsion with Carbopol 941 that had been stored in different temperature showed a significant difference in particle size (significance value< 0.05), but it did not apply to Carbopol 934. The evaluation revealed that compared to 0.25% of Carbopol 934, microemulsion with 0.15% of Carbopol 934 had a smaller difference between the time intervals. This research concluded that the use of 0.15% of Carbopol 934 as a thickener in ketoconazole microemulsion had better physical stability compared to Carbopol 941 due to the influence of temperature and length of storage.
Tobacco leaf contains antibacterial secondary metabolite compounds, such as phenol, alkaloids, and essential oils. This study compares the potential antibacterial effects of Indonesian tobacco leaf ...extracted using the heat reflux method (producing an extract) and pyrolysis method (providing a bio-oil). The tobacco leaf extract was challenged against Staphylococcus aureus ATCC 25923, Enterococcus faecalis ATCC 29212, Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853. The bio-oil from the pyrolysis method showed inhibitory Kirby Bauer zones higher than those of the extract from heat reflux method, with the maximum results in the pyrolysis method indicating zones of 6.35 mm (S. aureus), 5.90 mm (E. faecalis), 3.97 mm (E. coli), and 5.025 mm (P. aeruginosa). Further study analyzed the effectiveness of the disc and well diffusion antibacterial test methods for measuring the antibacterial effect of bio-oils against Escherichia coli ATCC 25922 and Pseudomonas aeruginosa ATCC 27853. The bio-oil used in the well diffusion test method showed the most significant antibacterial effectiveness. It showed the biggest inhibition zone, with a maximum of 11.65 mm and 8.90 mm for E. coli and P. aeruginosa. Our results showed Nicotiana tabacum var. Virginia Bio Oil from Ponorogo (Indonesia) is a strong potential antimicrobial, especially using well diffusion test.
A Glyceryl monostearate can be used as an emulsifier because it can affect the increase in antioxidant activity. The study aims to determine the effect of fluctuations in the concentration of ...glyceryl monostearate (GMS) on the physical properties of cream preparations containing 70% ethanol extract from the skin of super red dragon fruit and their antioxidant activity. The research methods carried out experimentally include the manufacture of extracts from super red dragon fruit peel, phytochemical screening using thin layer chromatography, formulations using various concentrations of glyceryl monostearate 8%, 10%, 12% then the physical quality of the cream and antioxidant activity test using the DPPH method. The results of one-way ANOVA for pH, dispersion, adhesion, and viscosity tests showed a p-value of> 0.05, indicating that there was no significant difference. The IC50 results obtained with equations 1, 2, and 3 are 3.69 mg/L, respectively. 3.98mg/L; and 4.78mg/L. Formula 3 is the best formula and estimates the antioxidant activity of Vitamin C, which is a positive control, at a value of 5.83 mg/L. The results of the irritation test showed that none of the formulations caused irritation. The preference test results showed that the respondents liked all the formulas. The conclusion of this study is that increased fluctuations in the concentration of glyceryl monostearate did not affect the physical properties of super red dragon fruit skin extract cream, but did affect its antioxidant activity.
Corncob is one of crude drug which containing phenolic compounds that can be used as an active ingredient for sunscreen preparations. In this study, extracts of dried corn cob made into a gel ...formulation using SRC (Semi Refined Carrageenan) and glucomannan as a gelling agent.
This study aims to determine the optimal concentration of SRC (Semi Refined Carrageenan) and glucomannan to the physical stability of the gel.
Gel made into four formulas with a ratio of 1: 4 and the concentration of each formula was 1%, 1.5%, 2%, 2.5%. Each formula was evaluated for 6 weeks of storage that includes organoleptic test, homogeneity, pH, viscosity, dispersive power, freeze-thaw test and centrifugation.
The results showed the fourth formula did not change the organoleptic test and homogeneity test. In the test separation of the freeze-thaw method, the fourth formula was stable, while in the centrifugation test formula 1 and 2 was been separation. pH and viscosity results obtained from statistics with a two-way ANOVA showed significant differences in each formula.
From the results of this study concluded that the formula 3 with a concentration of 2% was the optimal concentration as a gelling agent.
PDF
