EFFECT OF STARCH AND SULFURIC ACID ON DETERMINATION OF VITAMIN C IN PAPAYA FRUIT USING IODIMETRI

Authors

  • Khoirul Ngibad Department of Medical Laboratory Technology, Faculty of Health Science, Universitas Maarif Hasyim Latif, Sidoarjo, Indonesia
  • M Sungging Pradana Department of Medical Laboratory Technology, Faculty of Health Science, Universitas Maarif Hasyim Latif, Sidoarjo, Indonesia
  • Ingrid Retno Y Department of Medical Laboratory Technology, Faculty of Health Science, Universitas Maarif Hasyim Latif, Sidoarjo, Indonesia

DOI:

https://doi.org/10.33086/ijmlst.v1i1.893

Keywords:

Vitamin C, sulfuric acid, starch, iodimetri

Abstract

Vitamin C is an antioxidant that can be used to inactivate oxidation reactions and prevent the formation of free radicals. Sources of vitamin C are fruits, such as papaya fruit. The purpose of this study was to determine the effect of the indicator volume of 1% starch and 2 N sulfuric acid on the determination of vitamin C in papaya fruit samples. This study used the iodimetri method with a standard iodine solution, starch indicator and the addition of sulfuric acid. The variations of starch indicator volume include: 0.25; 0.5, 1, 2 and 3 mL and the variations of sulfuric acid volume include: 0, 2, 4, 6, and 8 mL. The results showed that the optimum 1% starch indicator volume was 1 mL and the optimum volume of 2 N sulfuric acid was 2 mL.

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Published

2019-04-04

How to Cite

Ngibad, K., Pradana, M. S. and Y, I. R. (2019) “EFFECT OF STARCH AND SULFURIC ACID ON DETERMINATION OF VITAMIN C IN PAPAYA FRUIT USING IODIMETRI”, Indonesian Journal of Medical Laboratory Science and Technology, 1(1), pp. 15–21. doi: 10.33086/ijmlst.v1i1.893.