PENETAPAN KADAR FLAVONOID TOTAL PADA AIR PERASAN
LEMON (Citrus limon (L.) Osbeck) LOKAL DAN IMPOR
SECARA SPEKTROFOTOMETRI UV-VIS
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Institusion
Sekolah Tinggi Ilmu Kesehatan Nasional
Author
Christivanny, Sheila Pravita
Subject
RN Pharmacy and Pharmaceutical Mathematics
Datestamp
2022-07-05 02:09:01
Abstract :
One of the fruits whose juice can function as an antibacterial is lemon. This is related to the flavonoid content in lemons. The purpose of this study was to determine the total flavonoid content in local and imported L Osbeck lemon (Citrus limon) juice using the UV-Vis spectrophotometric method. The filtered juice was used for qualitative analysis and quantitative analysis. Qualitative analysis with concentrated HCI reagent plus magnesium powder, 10% NaOH, and concentrated H2SO4 with the result that lemon juice is positive for flavonoids. Quantitative analysis using UV-Vis spectrophotometry with operating time at 28 minutes, maximum wavelength of 439 nm. Total flavonoid content in local lemon juice was 38.419 ± 0.4449 mg QE/100 ml of juice, the % coefficient of variation obtained was 0.55%. The total flavonoid content in imported lemon juice is 39.989 ± 0.1991 mg QE/100 ml of juice and the coefficient of variation is 0.60%.
One of the fruits whose juice can function as an antibacterial is lemon. This is related to the flavonoid content in lemons. The purpose of this study was to determine the total flavonoid content in local and imported L Osbeck lemon (Citrus limon) juice using the UV-Vis spectrophotometric method. The filtered juice was used for qualitative analysis and quantitative analysis. Qualitative analysis with concentrated HCI reagent plus magnesium powder, 10% NaOH, and concentrated H2SO4 with the result that lemon juice is positive for flavonoids. Quantitative analysis using UV-Vis spectrophotometry with operating time at 28 minutes, maximum wavelength of 439 nm. Total flavonoid content in local lemon juice was 38.419 ± 0.4449 mg QE/100 ml of juice, the % coefficient of variation obtained was 0.55%. The total flavonoid content in imported lemon juice is 39.989 ± 0.1991 mg QE/100 ml of juice and the coefficient of variation is 0.60%.
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