ANALISIS VITAMIN C PADA DAUN SINGKONG MUDA SEGAR (Manihot esculenta Crantz) SECARA SPEKTROFOTOMETRI UV-Vis

Purnamawati, Shinta Noviana (2018) ANALISIS VITAMIN C PADA DAUN SINGKONG MUDA SEGAR (Manihot esculenta Crantz) SECARA SPEKTROFOTOMETRI UV-Vis. Karya Tulis Ilmiah thesis, Universitas Setia Budi Surakarta.

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Abstract

Cassava leaves is one of vegetables that used as traditional medicine and one of the healthy food sources. Cassava leaves are known to contain Vitamin C which is an essential vitamin and important for body. Purpose of this research is to determine the availability of vitamin C on fresh young cassava leaves in UVVis spectrophotometry. The research started with qualitative test by reacting sample of fresh young cassava leaves filtrate using iodium, FeCl3, Fehling A dan Fehling B reagent, then followed with spectrophotometry UV-Vis quantitative test. The maximum wavelength of Vitamin C measured at 240-280 nm in 15 minutes operating time. Calibration curve using five concentrations of standard solution of Vitamin C, they are 3,54 µg/ml; 4,72 µg/ml; 5,9 µg/ml; 7,08 µg/ml; 8,26 µg/ml. The parameters of validation method in this research are linearity, LOD, LOQ and accuracy test. The result of qualitative test indicate that the specimen of fresh young cassava leaves have contents of vitamin C. The result of quantitative test of fresh young cassava leaves sample produced 0,318 % b/b level of vitamin C. Keywords: Vitamin C, fresh young cassava leaves and UV-Vis spectrophotometry

Item Type: Thesis (Karya Tulis Ilmiah)
Uncontrolled Keywords: Vitamin C, fresh young cassava leaves and UV-Vis spectrophotometry
Subjects: R Medicine > RS Pharmacy and materia medica
Divisions: Fakultas Farmasi > Prodi D3 Farmasi
Depositing User: B Supri Yadi
Date Deposited: 20 Feb 2020 03:25
Last Modified: 20 Feb 2020 03:25
URI: http://repo.setiabudi.ac.id/id/eprint/2548

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