H4-DV-28B cal drilled hole and zerobacklash conical clamping Helical gear boxes H4

Flender/Flender Gear Units/Helical gear boxes H4

ing systems. This indicates that dehulling losses are signicant and vary with thescale of operation and the pulse crop. The highest yield of dehusked splits was reported to be obtained from modern dhal-making system developed at CFTRI (Mysore, India), where pulse was conditioned in current of hot air before dehulling (. This is furthercorroborated by the fact that higher yield of dehusked splits was obtained in small-scaleprocessing of pigeon pea when the pulse was heated in an open pan before dehulling usinga stone grinder (. Generally, losses in terms of brokens and powder fractions are higher in small-scale processing. Dehusked splits yields obtained by household-dehulling practice are noticeably lower than those obtained by the large-scale commercial dhal mills. 4.5 Effect of Dehulling on Nutrient Losses Common methods of dehulling invariably remove most of the germ portion along with the husk, which results in losses of vitamins and proteins, the two important dietary constit- 4 Narasimha et al. Table 6 Dehulling Losses in Various Pulses Large-scale processingaSmall-scale processingb Husk/H1 Husk/H1 Dehusked Brokens powder Dehusked Brokens powder Pulse splits (%) (%) (%) splits (%) (%) (%) Pigeon pea 7 2 1 5 1 1 Chickpea 7 1 1 6 1 1Lentil 7 3 1 6 8 1Green gram 7 5 1 6 1 8 Black gram 7 3 1 6 8 1 aBased on enquiry in 4 pulse mills in Maharashtra, Rajasthan, Madhya Pradesh, Tamil Nadu, and Uttar Pradesh, in India. bBased on data collected from 9 small-scale pulse-milling units all over India. Source : Ref. 3. uents (. In laboratory study, decrease in protein, calcium, and iron contents of the dehusked splits from chickpea and pigeon pea has been reported with an increase in dehul- ling time (4,, as seen from the data presented in Table 7. This was further corroborated by Narasimha (, who found that the outermost layers (about 5%) of the cotyledon in pigeon pea are very rich in calcium (about 2 mg/1 ) and protein content (near 4%). Scouring of even 2