Download Powder simplicia bungur leaves extracted by maceration with ethanol 70% as solvent and infundation with aquadest as solvent. Fractination i...
Download Flavonoids are biologically active polyphenolic compounds widely distributed in plants. Intake of flavonoids may be associated with decreased risk of cancer, cardiovascular and inflammatory diseases in humans. Vegetables are one source
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Study of Total Phenolic and Flavonoid Content, Antioxidant Activity and Antimicrobial Properties of Medicinal Plants Citation: Kaur S, Mondal P (2014) Study of
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Download USDA Database for the Flavonoid. Content of Selected Foods. Release 3.2. Prepared by. Seema Bhagwat and David B. Haytowitz,. Nutrient Data Laboratory. Beltsville Human Nutrition Research Center. Agricultural Research Service. U.S. Depa
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Download tanah, iklim, ketinggian, usia daun teh keti- ka dipetik tanah dan pembuat teh ( orang yang memutuskan kapan dan bagaimana daun teh dipetik dan diproses ( Syah, 2006). Oleh karena itu, dalam penelitian ini akan dilakukan pemeriksaan akti
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Download Protein Content of Foods. Meat, Poultry, Eggs: Food (Cooked). Serving Size. Calories. Protein (g). Chicken, skinless 3 oz. 141. 28. Steak. 3 oz. 158. 26. Turkey , roasted. 3 oz. 135. 25. Lamb. 3 oz. 172. 23. Pork. 3 oz. 122. 22. Ham. 3 oz
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A Comparison Total Flavonoid Content of Viscous Extract between Infundation and Maceration Methods and Identification of the Flavonoid Compounds in Ethyl Acetate Fraction of Bungur Leave (Lagerstroemia speciosa Pers.) Ahmad Bahrul Arzaq 11/316033/FA/08795
ABSTRACT Flavonoids are one of secondary metabolites in plants that have many therapeutic effects. Research on flavonoids is an effort in developing a treatment made from herbs. Knowledge of the compounds and the structure of flavonoids ease in doing the process of extraction and isolation. This research aims to know the comparison of total flavonoid content between methods of maceration and infundation in the viscous extract of bungur leaves (Lagerstroemia speciosa Pers.) and identifying the compounds of flavonoids in ethyl acetate soluble fraction. Powder simplicia bungur leaves extracted by maceration with ethanol 70% as solvent and infundation with aquadest as solvent. Fractination is done by hexsane and ethyl acetate solvent. Isolation of flavonoids using thin layer chromatography preparative method with the cellulose as stationary phase and acetic acid 15% as mobile phase. Ultraviolet- visibel spectrophotometry used to see patterns of spectra on isolates and for the determination of total flavonoid contents. Determination of the effectiveness of the extraction of total flavonoid contents in getting the most optimal statistical tests performed using independent samples T test with a 95% confidence level. Determination of the flavonoids compound was done by analyzing the fluorescence spot under UV 366 light and UV- visibel spectra both in ethanol solvent and shift reagent. The results showed that total flavonoid content of viscous extract between the methods of maceration and infundation does not differ significantly. While identification of the flavonoids in the bungur leaves leads to flavonol. The characteristics of a flavonol have free hydroxy groups on positioning C7 and C4', orthodihydroxy on positioning C6 and C7 or C7 and C8, and having no free hydroxy groups on positions both C5 and C3 or have free hydroxy groups on positions of C5 and C3 which are substituted. Keywords: Lagerstroemia speciosa Pers., identification, total flavonoids, maceration, infundation
PERBANDINGAN KADAR FLAVONOID TOTAL EKSTRAK KENTAL METODE MASERASI DAN INFUNDASI SERTA IDENTIFIKASI GOLONGAN SENYAWA FLAVONOID DALAM FRAKSI ETIL ASETAT DAUN BUNGUR (Lagerstroemia speciosa Pers.) Ahmad Bahrul Arzaq 11/316033/FA/08795 ABSTRAK Flavonoid merupakan salah satu metabolit sekunder dalam tumbuhan yang memiliki banyak efek terapi. Penelitian tentang flavonoid merupakan upaya dalam mengembangkan pengobatan berbahan dasar herbal. Pengetahuan tentang golongan senyawa dan struktur flavonoid mempermudah dalam melakukan proses penyarian dan isolasi. Penelitian ini bertujuan untuk mengetahui perbandingan kadar flavonoid total metode maserasi dan infundasi dalam kandungan ekstrak kental daun bungur (Lagerstroemia speciosa Pers.) dan melakukan identifikasi golongan senyawa flavonoid dalam fraksi larut etil asetat. Serbuk simplisia daun bungur diekstraksi dengan metode maserasi pelarut etanol 70% dan infundasi pelarut akuades. Fraksinasi dilakukan dengan pelarut heksan dan etil asetat. Isolasi flavonoid menggunakan metode kromatografi lapis tipis preparatif dengan fase diam selulosa dan fase gerak asam asetat 15%. Spektrofotometri UV-Visibel digunakan untuk melihat pola spektra pada isolat dan untuk penentuan kadar flavonoid total. Penentuan efektivitas ekstraksi dalam mendapatkan kadar flavonoid total paling optimal dilakukan menggunakan uji statistik independent sample T test dengan taraf kepercayaan 95%. Penentuan golongan senyawa flavonoid dilakukan dengan menganalisis fluoresensi bercak di bawah sinar UV 366 dan pola spektra UVVisibel ketika dalam pelarut etanol maupun setelah pemberian pereaksi geser. Hasil penelitian menunjukkan bahwa kadar flavonoid total ekstrak kental antara metode maserasi dengan infundasi tidak berbeda signifikan. Sementara identifikasi flavonoid dalam kandungan daun bungur mengarah pada golongan flavonol. Karakteristik flavonol tersebut yaitu memiliki gugus hidroksi bebas pada atom C7 dan C4’, orto dihidroksi pada posisi C6 dan C7 atau C7 dan C8, dan tidak memiliki gugus hidroksi bebas posisi C5 maupun C3 atau memiliki gugus hidroksi bebas posisi C5 dan C3 yang keduanya tersubstitusi.
Kata kunci: Lagerstroemia speciosa Pers., identifikasi, flavonoid total, maserasi, infundasi
