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Research Article - Asian Journal of Biomedical and Pharmaceutical Sciences (2022) Volume 12, Issue 89
Ethanolic extract of selenicereus undatus as substitutes to hazardous synthetic indicators in acid-base titration.
The present study was designed to identify the potential of Selenicereus undatus (Dragon Fruit) as an indicator for the acid-base type of titrations. Indicators used in titration show well-marked changes of color in certain intervals of pH. Today synthetic indicators are the choice of acid-base titrations but due to certain factors like environmental pollution, availability and cost there is a need for natural compounds as an indicator. The present work highlights the use of the acidified extract of the fruit of the dragon as an indicator in the acid-base type of titrations. Dragon fruit belongs to the family: cactus (pitaya or pitahaya). This natural indicator is easy to extract as well as easily available. Titration shows sharp color change at the equivalence point using two different Normalities of acids and alkalis viz. 0.1 and 1.0 N. Therefore, these natural indicators are found to be very useful, economical, and simple for an acid-base type of titration.
Author(s): R ohankumar R Chavan*, Akshata A Jong, Mangesh A Bhutkar, Asha S Jadhav, Vishal H Thorat