Rahman, Selvia Nurazizah (2021) IDENTIFIKASI DAN PENETAPAN KADAR BORAKS PADA JAJANAN SEKOLAH MENGGUNAKAN INDIKATOR TEMULAWAK (Curcuma Xanthorrhiza), TITRIMETRI DAN SPEKTROFOTOMETER UV-VIS. Skripsi thesis, Universitas Muhammadiyah Sukabumi.

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Abstract

Consuming foods that contain borax is not bad directly, but borax will accumulate little by little because it is absorbed in the body of consumers cumulatively. One of the plants used to detect borax is temulawak rhizome which contains curcuminoids in which there is a yellow substance (curcumin).This study aims to determine the level of detection of curcumin in temulawak and turmeric with the same variation in weight and levels of borax in the brains, temulawak and meatballs. This type of research is qualitative (tumeric paper) and quantitative (titration and UV-Vis spectrophotometer). In the qualitative test, Tumeric paper with borax concentration can be seen at a concentration of 100 ppm -1000 ppm, the color is darker brownish red. At the detection level of curcumin in 200 grams of turmeric, it was faster or higher to detect borax with a time of 1.20 seconds, the lowest was temulawak 100 mg 2.82 seconds. Sample testing using tumeric paper on samples of otak-otak, ketupat, and meatballs with the same weight variation of ginger and turmeric, the results were all negative (no borax was detected). In the quantitative test carried out by the acid-base titration, it was found that 3,5-8,9ppm. Borax content using UVvis spectrophotometer was 3,388 - 8,266 ppm.

Item Type:	Thesis (Skripsi)
Uncontrolled Keywords:	Borax, tumeric paper, spectrophotometer, titration, curcumin
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Divisions:	Fakultas Sains dan Teknologi > Kimia
Depositing User:	Perpus ID UMMI
Date Deposited:	24 Mar 2022 07:12
Last Modified:	24 Mar 2022 07:12
URI:	http://eprints.ummi.ac.id/id/eprint/2256

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