PENA SAINS
Vol 10, No 1 (2023): Jurnal Pena Sains

DETERMINATION OF ASCORBIC ACID CONCENTRATION IN MYRTACEAE USING THE IODOMETRIC TITRATION METHOD

Nur Syafitri (Universitas Alma Ata)
Muhammad Abdurrahman Munir (Universitas Alma Alta)
Veriani Aprilia (Universitas Alma Alta)
Emelda Emelda (Universitas Alma Alta)



Article Info

Publish Date
29 Apr 2023

Abstract

Vitamins are essential compounds in food even though the content contained in these foods is small, and this is because vitamins have a vital role in the human body. Vitamin C or ascorbic acid is a secondary antioxidant compound that captures free radical compounds. Vitamin C content is easily found in vegetables and fruits. One of the fruits that contain vitamin C is guava. This study aims to determine and analyze vitamin C concentrations in several guava fruit types with the iodometric titration method. This type of research is a quantitative-qualitative experimental laboratory. The samples used in this study were guava in Myrtaceae family consisting of red guava (Psidium guajava L.), crystal guava (Psidium guajava L.), and red water guava (Syzygium aqueum). The study began with making 0.05 N iodine, iodine formation, then the 3% amylum indicators. The average sample content of red guava, crystal guava, and red water guava was 2.42 mg/100 grams. To conclude, the ascorbic acid concentration of red guava water is higher at 157 mg/100 g compared to the other two guavas, which are 80 mg/100 g and 87 mg/100 g.

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Journal Info

Abbrev

penasains

Publisher

Subject

Agriculture, Biological Sciences & Forestry Chemistry Mathematics Physics

Description

Jurnal Pena Sains (p-ISSN: 2407-2311) (e-ISSN: 2527-7634) is published by Natural Science Education Study Program, University of Trunojoyo Madura as a medium to improve the creativity of lecturer, academics, practitioners, researchers, relating to the science education and science. The journal is ...