Total Flavonoid Levels of Ethanol Extract and Ethyl Acetate Fraction Dry Shallots (Allium cepa L. var. Garden Onion of Brebes) with Maceration Methods Using UV-Vis Spectrophotometry
Abstract
Heru Nurcahyo, Sri Adi Sumiwi, Eli Halimah, Gofarana Wilar
Introduction: Shallots (Allium cepa L. var. Garden Onion of Brebes) are one of abundant plants from Indonesia with high flavonoid content. Different drying processes can characterize different of flavonoid contents with two different solvents as a comparison.
Objective: This study aims to determine the total flavonoid levels of ethanol extract of dry shallot leaves obtained from maceration extraction methods and fractionation.
Methods: In this study, the simplicia of shallots were dried at a temperature 30, 40, and 60 ℃ and each was macerated using 96% ethanol as a solvent. The highest flavonoid content was fractionated using ethyl acetate as a solvent. Comparison between the simplicia and the solvent used is 1:10, then the extract obtained was carried out with of the total flavonoid levels were determined using UV-Vis spectrophotometry.
Results: The result showed that the highest flavonoid content of shallots ethanol extract are 2.715±0.005 mg QE/g samples and ethyl acetate fraction 115.7±0.025 ng QE/g samples with dried at 40℃.
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| Pubmed Style Nurcahyo H, Sumiwi SA, Halimah E, Wilar G. Total Flavonoid Levels of Ethanol Extract and Ethyl Acetate Fraction Dry Shallots (Allium cepa L. var. Garden Onion of Brebes) with Maceration Methods Using UV-Vis Spectrophotometry. SRP. 2020; 11(10): 286-289. doi:10.31838/srp.2020.10.48 Web Style Nurcahyo H, Sumiwi SA, Halimah E, Wilar G. Total Flavonoid Levels of Ethanol Extract and Ethyl Acetate Fraction Dry Shallots (Allium cepa L. var. Garden Onion of Brebes) with Maceration Methods Using UV-Vis Spectrophotometry. http://www.sysrevpharm.org/?mno=25386 [Access: March 29, 2021]. doi:10.31838/srp.2020.10.48 AMA (American Medical Association) Style Nurcahyo H, Sumiwi SA, Halimah E, Wilar G. Total Flavonoid Levels of Ethanol Extract and Ethyl Acetate Fraction Dry Shallots (Allium cepa L. var. Garden Onion of Brebes) with Maceration Methods Using UV-Vis Spectrophotometry. SRP. 2020; 11(10): 286-289. doi:10.31838/srp.2020.10.48 Vancouver/ICMJE Style Nurcahyo H, Sumiwi SA, Halimah E, Wilar G. Total Flavonoid Levels of Ethanol Extract and Ethyl Acetate Fraction Dry Shallots (Allium cepa L. var. Garden Onion of Brebes) with Maceration Methods Using UV-Vis Spectrophotometry. SRP. (2020), [cited March 29, 2021]; 11(10): 286-289. doi:10.31838/srp.2020.10.48 Harvard Style Nurcahyo, H., Sumiwi, . S. A., Halimah, . E. & Wilar, . G. (2020) Total Flavonoid Levels of Ethanol Extract and Ethyl Acetate Fraction Dry Shallots (Allium cepa L. var. Garden Onion of Brebes) with Maceration Methods Using UV-Vis Spectrophotometry. SRP, 11 (10), 286-289. doi:10.31838/srp.2020.10.48 Turabian Style Nurcahyo, Heru, Sri Adi Sumiwi, Eli Halimah, and Gofarana Wilar. 2020. Total Flavonoid Levels of Ethanol Extract and Ethyl Acetate Fraction Dry Shallots (Allium cepa L. var. Garden Onion of Brebes) with Maceration Methods Using UV-Vis Spectrophotometry. Systematic Reviews in Pharmacy, 11 (10), 286-289. doi:10.31838/srp.2020.10.48 Chicago Style Nurcahyo, Heru, Sri Adi Sumiwi, Eli Halimah, and Gofarana Wilar. "Total Flavonoid Levels of Ethanol Extract and Ethyl Acetate Fraction Dry Shallots (Allium cepa L. var. Garden Onion of Brebes) with Maceration Methods Using UV-Vis Spectrophotometry." Systematic Reviews in Pharmacy 11 (2020), 286-289. doi:10.31838/srp.2020.10.48 MLA (The Modern Language Association) Style Nurcahyo, Heru, Sri Adi Sumiwi, Eli Halimah, and Gofarana Wilar. "Total Flavonoid Levels of Ethanol Extract and Ethyl Acetate Fraction Dry Shallots (Allium cepa L. var. Garden Onion of Brebes) with Maceration Methods Using UV-Vis Spectrophotometry." Systematic Reviews in Pharmacy 11.10 (2020), 286-289. Print. doi:10.31838/srp.2020.10.48 APA (American Psychological Association) Style Nurcahyo, H., Sumiwi, . S. A., Halimah, . E. & Wilar, . G. (2020) Total Flavonoid Levels of Ethanol Extract and Ethyl Acetate Fraction Dry Shallots (Allium cepa L. var. Garden Onion of Brebes) with Maceration Methods Using UV-Vis Spectrophotometry. Systematic Reviews in Pharmacy, 11 (10), 286-289. doi:10.31838/srp.2020.10.48 |
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