PENETAPAN KADAR VITAMIN C PADA BUAH SEGAR DAN MANISAN BASAH BUAH NANAS (Ananas comosus. Merr) SECARA SPEKTROFOTOMETRI UV

Wahyuningrum, Yasintha Try (2019) PENETAPAN KADAR VITAMIN C PADA BUAH SEGAR DAN MANISAN BASAH BUAH NANAS (Ananas comosus. Merr) SECARA SPEKTROFOTOMETRI UV. Karya Tulis Ilmiah thesis, Universitas Setia Budi.

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Abstract

Vitamin C is needed by the human body that can be obtained from fruit including pineapple (Ananas comosus. Merr..). The purpose of this research is the qualitative test and quantitative test of vitamin C on fresh fruit and wet confectionery of pineapple fruit in UV spectrophotometry. The sample using fresh fruit and sweetened pineapple (Ananas comosus. Merr..). Qualitative tests were carried out based on the ability to dissolve the color of reagents from Iodine, KMnO4, Fehling A and Fehling B solutions. Quantity tests using UV spectrophotometry with maximum wavelength λ max of 266 nm and operating time in the 1st to 15th minute. Qualitative and quantitative test result of vitamin C on fresh fruit and wet sweetened pineapple (Ananas comosus. Merr..) in spectrophotometry UV generates linear line equation y = 0,0625 x + 0,2572 with coefficient value correlation (r) = 0,9971, LOD = 0,2937, LOQ = 0,9789, precision, SD = 0,0557, RSD = 1,130486 and accuracy = 99.96% indicates that all test samples contain Vitamin C with successive levels of fresh fruit = 0,0553% b/b, ripe fresh fruit = 0,0449% b/b and on wet lollipop = 0,0271% b/b with meaningful differences. Keywords: Pineapple, Vitamin C, UV spectrophotometry.

Item Type: Thesis (Karya Tulis Ilmiah)
Uncontrolled Keywords: Pineapple, Vitamin C, UV spectrophotometry.
Subjects: T Technology > TP Chemical technology
Divisions: Fakultas Farmasi > Prodi D3 Analis Farmasi dan Makanan
Depositing User: Tifany Nur Arfiana
Date Deposited: 04 Dec 2019 07:22
Last Modified: 04 Dec 2019 07:22
URI: http://repo.setiabudi.ac.id/id/eprint/4027

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