Development of Hot Air Puffing System for Corn
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Date
2013
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Publisher
MPUAT, Udaipur
Abstract
The oil free RTE foods are of more demand amongst health conscious
demography and are free from contaminations and are having higher shelf lives.
Maize is a coarse grain and accepted as staple diet and its demand is increasing year
by year. The maize production of India in 2011-2012 is 21.5 million tones and the
area under production is 7.18 million hectares and yield is 1959 kg/hectares. The
maize production of Rajasthan in 2011-2012 is 1670 tones and the area under
production is 1143.1 hectares. Research work was carried out to develop hot air
puffing system for corn.
The developed continuous hot air puffing system consist of heating chamber,
puffing column, feed hopper, conveyance pipe, cyclone separator, recirculation pipe
and blower. The continuous hot air puffing system enables continuous feeding of raw
material and continuous exit of puffed product and it was found safe and easy to
operate. The continuous hot air puffing system can be set to any puffing temperature
from 180 to 270 °C and air velocity of 20 to 30 m/s. The performance of the
developed machine was evaluated at different puffing temperatures (200°C, 220°C,
240°C and 260°C) and at different feed rate (50 g/min and 100 g/min). The optimum
conditions for puffing of popped corn were found to be puffing temperature of 200°C
and feed rate of 100 g/min. The puffing percentage and expansion ratio of popped
corn were observed to reduce with increase in puffing temperature and feed rate the
maximum puffing percentage and expansion ratio were found at 200°C as 86.51% and
13.36.
Description
Development of Hot Air Puffing System for Corn
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Citation
Dahiwale and Champawat, 2013