Natural indicators are substances that can be used to determine the pH of a solution by changing color. In this study investigation done on natural substance like Hibiscus rosa sinensis, Allium cepa, Beta vulgaris and Curcuma longa, as indicators in Acid Base titarations, Milk freshness indicator. In this study, we propose a novel application of Hibiscus rosa sinensis as a milk freshness indicator. The study also highlights the benefits of utilizing a natural indicator, including its affordability, wide availability, environmental sustainability, and responsiveness to external conditions like temperature and light. Overall, this article provides valuable insights into the use of natural indicator and highlights its potential for future research and applications in various fields.
Kote et al. (Thu,) studied this question.