Impact of Processing on Metabolic Contents in the Leaves of Stevia rebaudiana Bartoni Chandrakant Jyothi, Iqbal Arshiya, Mathad Pratima Plant Biotechnology Laboratory Dept. of Post-Graduate Studies & Research in Botany, Gulbarga University, Gulbarga-585 106, Karnataka, India Email: unipm@rediffmail.com, jyothichonnalli@gmail.com
Online published on 23 May, 2013. Abstract The present study was undertaken to investigate the impact of processing on metabolic contents in the leaves of Stevia rebaudiana and also to assess the primary and secondary metabolites under different storage conditions and durations. In this study, the plants were collected from two different centers, namely, ‘Biotechnology’, Bangalore and ‘Jeevan herbs’, Madhya Pradesh. The study indicated that the storage and preservation conditions had some impact on the primary and secondary metabolic contents in the leaves of Stevia. It was interesting to note that the maximum content of glycosides were recorded at 15 °C in 90 days stored leaves and least content of glycosides were observed at room temperature of 30 days stored leaves obtained from Jeevan herbs. The variation in metabolic contents of the leaves collected from two centers may be because of changes in climatic environmental factors and soil type. These results suggested that the steps need to be properly aligned during processing and exploring the natural sweetener from the Stevia. Top Keywords Stevia rebaudiana, storage, preservation, primary and secondary metabolites. Top |