Characterization and analysis of dhokla with incorporated tomato powder

Abstract

Dhokla is easy to cook and very popular as a snack. Tomato is an excellent fortification ingredient for food products due to its nutritional properties, high antioxidant activity and good sensory characteristics. In this study, dhokla was fortified with 1%, 4% and 7% tomato powder and analyzed on the day of preparation and after storage. Acidity increased from 0.09 to 0.45 following tomato powder incorporation. The correlation coefficient (R2) demonstrated that antioxidant content is strongly associated with antioxidant activity. Rheological characteristics suggested that dhokla batter has viscoelastic properties. The moisture content of dhokla decreased from 16.928 to 15.10, from 18.05 to 17.45 and from 20.10 to 18.03 at the three levels of fortification after storage. Nutritional values were highest when dhokla was fortified with 7% tomato powder. Sensory analysis showed that dhokla containing 4% tomato powder has the best overall acceptability.