Processing, marketing and utilization of cassava and sweetpotato in India.
1992
Balagopalan, C. | Padmaja, G. | Kurup, G.T.
Area planted and production of cassava and sweetpotato in India started declining recently, while the per acre production of cassava has increased. A large variation in cassava and sweetpotato consumption exists between urban and rural areas. Information on consumption patterns for sweetpotato indicate that the bulk of production goes for human consumption. It is estimated that 70 of the total cassava production in Kerala is used for food; whereas in Tamil Nadu only 25 is used for human consumption. The bulk of the production in Tamil Nadu and Andhra Pradesh goes for industrial utilization. Approximately 17 of the country's total cassava production goes for animal feed. In industry, cassava is used as a raw material for a number of processed products such as syrup. Research has been done to develop technology for the storage of fresh and dried cassava. Sweetpotato could be stored without sprouting and weevil infestation in sand, saw dust, wood ash, earth, and waste carbon paper in earthen pots. A hand-operated and a pedal-operated chipping machine, and artificial drying and peeling machines have also been developed. Protein enriched food and feed preparations based on cassava were developed by blending cassava with protein sources and using solid state fermentation. Pregelatinized and modified starches were also made. Technology for production of ethanol from starch and thippi was perfected. Current processing techniques of cassava and sweetpotato are described in detail. Research priorities for cassava and sweetpotato are storage techniques, waste recycling, fermented and non-fermented food products, animal and fish feeds, modernization of starch extraction units, and improved technology for the extraction of starch from sweetpotato.
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