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A batch type ginger washing-cum-peeling machine was developed and investigated for its use in the production line of bleached dry ginger. The machine used 2 hard nylon brush rollers that rotated at 200 rpm in opposite direction. The rhizomes got lifted and tumbled on the rollers, and the application of jets of water removed the soil and other foreign material from the surface of rhizomes and about 59% of the total peels. Output capacity of the machine was 13.86 kg/h with about 2% loss of edible material. The machine required one unskilled labourer to feed 3 kg fresh harvested ginger rhizomes at every 12 minute interval and collect the rough peeled rhizomes after each batch of operation. Use of machine in the production line of bleached dry ginger resulted in the saving of 42.3% of labour and 46.7% time involved in manual washing and peeling. Ginger washing-cumpeeling machine is recommended for small processing centres, commercial kitchens and restaurants where there is need of about 3.4 kg peeled rhizomes/day. | Development and performance evaluation of an electric motor powered ginger washing-cum-peeling machine
