Council of Scientific and Industrial Research

Madhav Jagannath Thakar

Mohan Gopalkrishna Kulkarni

Sanjay Narayan Nene

Sudhir Sharadchandra Kulkarni

Bhaskar Ganapatrao Gaikwad

The invention relates to a novel process for the recovery of potassium bitartrate and pectin, sugars, fruit acids as by-products from tamarind pulp.

Process for the recovery of potassium bitartrate and other products from tamarind pulp

The invention provides Potassium bitartrate, pectin, L(+) tartaric acid and fruit sugars present in tamarind pulp, which are recovered sequentially by extracting the pulp in water, concentrating and chilling the extract, filtering out potassium bitartrate, precipitating out pectin from the filtrate by addition of acetone, extracting L(+) tartaric acid selectively by complexation with tertiary amine and recovering from the amine layer by back extraction into aqueous layer in the presence of a diluent at around 70.degree. C. followed by concentration and drying of the aqueous layer and treating the raffinate layer from solvent extraction with activated carbon, anion exchange resin, and concentrating to yield sugar containing 70% sugars.

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Maharashtra, India

Madhav Jagannath Thakar