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RA 00110.pdf - OAR@ICRISAT

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Introduction<br />

Pearl millet (Pennisetum americanum) is a staple<br />

human food in both Asia and Africa. Rachie and<br />

Majmudar (1980), Hoseney et al. (1981), Hulse et al.<br />

(1980), and Hoseney and Varriano-Marston (1980)<br />

have presented reviews on the physical, chemical,<br />

and processing properties of pearl millet. The review<br />

by Hulse et al. (1980) is especially comprehensive.<br />

The objectives of this paper are to review the<br />

traditional methods of preparing foods and to discuss<br />

the structural, physical, and chemical characteristics<br />

of pearl millet that affect food quality. An<br />

understanding of the food quality of pearl millet is<br />

improving, although progress is relatively slow.<br />

Traditional Millet Foods<br />

The classification scheme (Table 1) for major classes<br />

of traditional foods is similar to that proposed in the<br />

1981 Sorghum Food Quality Symposium ( I C R I -<br />

SAT 1982), which was based on efforts by Vogel and<br />

Graham (1979) It has facilitated efforts to identify<br />

critical factors affecting pearl millet food quality.<br />

Other schemes for classifying traditional foods are<br />

based upon the viscosity of the foods (Dako 1985).<br />

Literally scores of dialectic names are used to refer to<br />

these traditional food products. Some are presented<br />

in Table 1. In general, pearl millet, sorghum, and<br />

other cereals are used to make these products.<br />

Steinkraus (1983) has presented considerable information<br />

on the major native foods produced by fermentation<br />

around the world.<br />

Milling of Pearl Millet<br />

Food products are produced from whole, cracked,<br />

or ground pearl millet. Many consumers decorticate<br />

(dehull) the kernel before grinding it into various<br />

particle sizes for use in different products. Pushpamma<br />

and Rao (1981) found that two-thirds of the<br />

consumers in the Indian state of Andhra Pradesh<br />

decorticated grain. In most areas of Africa, a significant<br />

portion of the pearl millet is decorticated.<br />

Pearl millet is generally decorticated by washing<br />

the clean grain in water. The water is removed and<br />

the grain is crushed using a stone mortar and<br />

wooden pestle. The bran is removed by washing or<br />

winnowing the sun-dried, crushed material. The<br />

endosperm chunks can be boiled like rice, or they<br />

can be ground into flour by additional pounding in<br />

the mortar, hand stone grinding, or grinding with a<br />

mechanical stone or plate mill. Decortication is<br />

sometimes accomplished by using rice dehullers or<br />

44

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