This protocol outlines the preparation of a natural, eco-friendly pH indicator using red cabbage extract. The anthocyanins in red cabbage change color across the pH spectrum, making it an effective, low-cost, and environmentally safe alternative to synthetic chemical indicators. The addition of garlic extract as a natural preservative extends the shelf life of the indicator. This protocol is designed for laboratory or educational settings, requiring minimal equipment and ensuring accessibility. It Generally provides a frugal alternative to low-income Labs in developing countries to measure PH to conduct research in various fields, Biotechnology included.
we call our final product in this protocol: The Syrian PH indicator kit.
Objective: To prepare a natural pH indicator from red cabbage extract that is safe, cost-effective, and capable of visually indicating pH changes from 1 to 14 (relatively).
