Kandungan kimia flavonoid dan fenolik dalam ekstrak daun T.erecta diketahui memiliki aktivitas antibakteri yang baik. Pengunaan ekstrak daun T.erecta sebagai zat aktif sediaan hidrogel akan sangat mempermudah pemanfaatan dalam proses terapi oleh masyarakat. Tujuan dalam penelitian ini adalah melihat kemampuan aktivitas antibakteri sediaan hidrogel dengan zat aktif ekstrak daun T.erecta. Dalam penelitian ini digunakan 6 variasi konsentrasi ekstrak yang terkandung pada sediaan hidrogel yaitu 1.5; 2.0; 2.5; 3.0; 3.5; dan 4.0 %. Pengujian aktivitas antibakteri menggunakan metode difusi sumuran terhadap bakteri Staphylococcus aureus dan Escherichia coli. Aktivitas antibakteri terbesar ditunjukkan oleh sediaan hidrogel dengan konsentrasi ekstrak daun T.erecta 2.5%. Diameter zona hambat yang terbentuk terhadap pertumbuhan E.coli adalah 15.33 mm sedangkan diameter zona hambat terhadap S.aureus adalah 17.87 mm. Untuk kontrol positif digunakan bioplacenton® dan untuk kontrol negatif digunakan basis hidrogel tanpa kandungan ekstrak T.erectaFlavonoid and phenolic on ethanolic extract of T.erecta L has been antibacterial activity. The aim of this research was to determinate of antibacterial from hydrogel with ethanolic extract of T.erecta L. This research was begun making hydrogels with six variations of ethanolic extract of T.erecta L were 1.5; ; 2.0; 2.5; 3.0; 3.5; and 4.0 %. Antibacterial activity used hole diffusion method against Staphylococcus aureus and Escherichia coli. Hydrogel containing 2.5 % ethanolic extract of T.erecta L was shown the highest antibacterial activity. The diameters of the inhibition zone against E.coli was 15.33 mm and against S.aureus was 17.87 mm. Positive control used bioplacenton® and negative control was hydrogel without ethanolic extract of T.erecta content
Background: Sex hormone-binding globulin (SHBG) is a protein. The synthesis of SHBG protein is encoded by SHBG gene. Protein polymorphism of SHBG can occur because of a mutation of D327N exon 8 in SHBG gene. D327N mutation causes the addition of glycosylation so that molecular weight of SHBG protein increases. Protein polymorphism of SHBG is suspected to affect the levels of SHBG, testosterone, and insulin in the blood circulation. Objective:To determine the effect of protein polymorphism of SHBG on the levels of SHBG, testosterone, and insulin in healthy adult men. Materials and Methods:Serum samples were collected from 179 healthy adult men. Electrophoresis and western blotting were performed to determine the phenotype of SHBG. All subjects were divided into two groups based on SHBG phenotype; group I (normal SHBG phenotype) n = 159 subjects and group II (variant SHBG phenotype) n = 38 subjects. Result:The levels of serum SHBG, testosterone, and insulin were measured using radioimmunoassay method. The levels of SHBG, total testosterone, and free testosterone between normal SHBG phenotype do not differ with variant SHBG phenotype (p > 0.05), but insulin levels between normal SHBG phenotype compared with variant SHBG phenotype was different (p < 0.05). Conclusion:Protein polymorphisms of SHBG was not found to affect the levels of SHBG, total testosterone, and free testosterone. Protein polymorphism of SHBG was found to affect the insulin levels in the blood serum.
Purslane is a plant that thrives in open areas and has a fairly high water content. Hereditary purslane plant has been used for skin protection from the sun. The aim of this study is to determine the value of Sun Protecting Factor (SPF) of ethanol extracts, soluble and insoluble fractions of ethyl acetate from purslane herb.Extraction using maceration method by ethanol 90%. Fractionation process is the partition obtained soluble and insoluble fractions of ethyl acetate. Absorbance values read using UV-VIS spectrophotometry at a wavelength of 290-320 nm. SPF value is obtained for the ethanol extract 19.495, 20.829 for the soluble fraction of ethyl acetate and 30.055 for an insoluble fraction of ethyl acetate.
Kaliandra Leaf (Calliandra surinamensis Benth) contains flavonoid compounds, saponins and tannins which are able to inhibit the antibacterial activity. This study aims to test the antibacterial effectiveness of gel preparation of ethanol extracts of kaliandra leaf to obtain the greatest formula, and prove the Kaliandra leaf gel preparation has good physical stability. This study uses a laboratory experimental method. Gel formula is made as many as 5 formulas with variations in the concentration of 2%, 3%, 4%, 5%, and 6% of w : v. Kaliandra leaf extraction was carried out by maceration method using 96% ethanol. The antibacterial test of the ethanol extracts of Kaliandra leaf gel using the method of welling against Staphylococcus aureus bacteria produced a moderate inhibition of 7.0 ± 0.63 mm at a concentration of 6%. The physical evaluation of the preparation includes organoleptic test, homogeneity test, syneresis test, scatter power test, adhesion test, pH test, cycling test, and sterility test. All tests are carried out before and after the cycling test. The results of the study on the preparation fulfilled the physical evaluation requirements before and after the cycling test. It can be concluded that the concentration of 6% of ethanol extracts of Kaliandra leaves could be formulated as a gel preparation that is physically stable and has moderate antibacterial activity. Keywords: Kaliandra (Calliandra surinamensis Benth), Gel preparations, Staphylococcus aureus antibacterial. ABSTRAK Daun Kaliandra (Calliandra surinamensus Benth) mengandung senyawa flavonoid, saponin dan tannin yang mampu menghambat aktivitas antibakteri. Penelitian ini bertujuan untuk menguji efektivitas antibakteri sediaan gel ekstrak etanol daun Kaliandra untuk mendapatkan formula terbesar, serta membuktikan sediaan gel daun Kaliandra mempunyai stabilitas fisik yang baik. Penelitian ini menggunakan metode ekperimental laboratorium. Formula sediaan gel dibuat sebanyak 5 formula dengan variasi konsentrasi 2%, 3%, 4%, 5%, dan 6% b/v. Ekstraksi daun Kaliandra dilakukan dengan metode maserasi menggunakan etanol 96%. Penelitian uji antibakteri sediaan gel ekstrak etanol daun Kaliandra menggunakan metode sumuran pada bakteri staphylococcus aureus menghasilkan daya hambat yang sedang yaitu 7,0±0,63 mm pada konsentrasi 6%. Evaluasi fisik sediaan meliputi uji organoleptik, uji homogenitas, uji sineresis, uji daya sebar, uji daya lekat, uji pH, uji cycling test, dan uji sterilitas. Semua pengujian dilakukan sebelum dan sesudah cycling test. Hasil penelitian sediaan memenuhi persyaratan eveluasi fisik sebelum uji cycling test dan sesudah cycling test. Dapat disimpulkan pada kosentrasi 6% ekstrak etanol daun Kaliandra dapat diformulasi sebagai sediaan gel yang stabil secara fisik dan memiliki aktivitas antibakteri yang sedang. Kata kunci : Kaliandra (Calliandra surinamensis Benth), Sediaan Gel, Antibakteri Staphlococcous aureus.
Bay leaf (Syzygium Polyanthum (Wight) Walpers.) is known contains flavonoids, saponins, tannins and vitamin C. Flavonoids and vitamin C have an antioxidant activity, since they have the ability to remove and effectively reduce a damaging oxidizer species. The aim of the study is to determine the impact of the bay leaf ethanol extract enhancement concentration towards an antioxidant activity of cream preparation by using the DPPH method. This research used laboratory experimental methods. Cream formulations are made with various concentrations 1%, 3%, 6% and 9%. The evaluation results of the bay leaf cream preparation has fulfilled the requirements of homogeneity, organoleptic, pH, adhesion, dispersion, and centrifugation. The results of the antioxidant activity test using the DPPH method using the UV-Vis spectrophotometer which was the most effective as an antioxidant cream from bay leaf extract was 3% with a value IC_50 = 1.4630 ppm and vitamin C as a comparison with a value IC_50 = 0.1131 ppm. From this research, it can be concluded that the cream formulation of bay leaf ethanol extract has fulfilled the physical test parameters, stabile, and had a powerful antioxidant activity.Keywords: : Bay Leaf (Sysigium Polyanthum (Wight) Walpers.), Antioxidant Cream, DPPH (1.1-Diphenyl-2-Picrylhydrazyl) Method ABSTRAKDaun salam (Syzygium Polyanthum (Wight) Walpers.) diketahui mengandung flavonoid, saponin, tanin dan vitamin C. Senyawa flavonoid dan vitamin C memiliki aktivitas sebagai antioksidan, karena memiliki kemampuan untuk menghilangkan dan secara efektif mengurangi spesies pengoksidasi yang merusak. Penilitian ini bertujuan untuk mengetahui pengaruh peningkatan kosentrasi ekstrak etanol daun salam terhadap aktivitas antioksidan pada sediaan krim dengan menggunakan metode DPPH. Penelitian ini mengggunakan metode eksperimental laboratorium. Formulasi sediaan krim dibuat dengan variasi konsentrasi 1%, 3%, 6% dan 9%. Hasil evaluasi sediaan krim daun salam memenuhi persyaratan homogenitas, organoleptis, pH , daya lekat, daya sebar, sentrifugasi. Hasil uji aktivitas antioksidan dengan metode DPPH menggunakan spektrofotometer UV-Vis yang paling efektif sebagai krim antioksidan dari ekstrak daun salam adalah 3% memiliki nilai = 1,4630 ppm dan vitamin C sebagai pembanding memiliki nilai = 0,1131 ppm. Dari penilitian ini dapat disimpulkan bahwa sediaan krim ekstrak etanol daun salam memenuhi parameter uji fisik, stabil dan memiliki aktivitas antioksidan yang sangat kuat. Kata kunci : Daun Salam (Sysigium Polyanthum (Wight) Walpers.) Krim Antioksidan, Metode DPPH (1.1-Diphenyl-2-Picrylhydrazyl)
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