Abstract
In acid- base titrations, indicators are used to show a sharp color changes at interval of pH.Natural pigments in plants are highly colored substances and may show color changes withvariation of pH. An attempt has been made to investigate the indicator activity of root extract of golden beet root and to replace the synthetic indicators as they have certain disadvantages like chemical pollution, availability problems and high cost. A study has been done to investigate the indicator activity of aqueous extract of root pigments and compared with that of already existing synthetic indicators. Pigments were extracted using hot water and a definite volume was added which gave accurate and reliable results for all the four different types of neutralization titrations - strong acid against strong base, strong acid against a weak base, weak acid against strong base and weak acid against weak base. The work proved to be acceptable in introducing root pigments as a substitute to the synthetic acid-base indicators.
Highlights
Beetroot is a root vegetable that grows primarily in the ground with a leafy top that grows aboveground
Recent studies have indicated that consuming beetroot juice can improve certain health conditions and can improve oxygenation during athletic activities
The Indians used the beet medicinally, but were the first to cultivate the plant for its root
Summary
Beetroot is a root vegetable that grows primarily in the ground with a leafy top that grows aboveground. The Indians used the beet medicinally, but were the first to cultivate the plant for its root. The beetroot, commonly called the beet, is a biennial plant that produces seeds the second year of growth and is usually grown as an annual for the fleshy root and young leaves. There are automated titration apparatus that determine the equivalent points between reacting species, indicators are still needed for teaching and research laboratories for simple titration Flavanoids are colored compounds that can be isolated from various parts of plants like flowers, fruits and are pH sensitive.
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