Abstract
Rice (Oryza sativa L) is the second largest grown and consumed cereal in Pakistan. Coarse rice cultivars are famous for puffing
characteristics; hence mostly used in many puffed or extruded products. The present study was conducted to screen out
Pakistani coarse rice cultivars for their end-use quality and value addition by probing various quality attributes. Five coarse
rice varieties namely IRRI-9, IRRI-6, KSK-133, KSK-434 and Shadab were milled to obtain brown rice and white rice
fractions. The length (7.67mm) and width (2.35mm) was higher in KSK-434 whereas higher thickness (2.05mm) was observed
in KSK-133. The highest bulk density (0.93g/cm3
) was observed in IRRI-6 whereas, IRRI-9 showed the lowest (0.88g/cm3
)
values. Thousand kernel weight (TKW) was ranged from 15.83 to 20.02g and 18.28 to 22.84g among the milled fractions of
white and brown rice, respectively. It was higher in KSK-434 trailed by Shadab, KSK-133 and the lowest values were observed
in IRRI-9. Proximate and mineral composition revealed significantly higher contents of these nutrients in brown than that of
white rice. The moisture, ash, fiber, protein, fat and nitrogen free extract ranged from 9.23 to 12.26, 0.67 to 3.81, 0.98 to 4.21
and 6.04 to 8.98, 1.23 to 5.45 and 65.87 to 80.28g/100g, respectively among different milling fractions. The amylose content
for IRRI-9, IRRI-6, KSK-133, KSK-434 and Shadab were ranged from 27.07 to 28.25, 27.55 to 29.78, 26.48 to 27.96, 26.80
to 28.98 and 29.03 to 30.88%, respectively. With respect to amylose, length, thousand kernel weight and bulk density, higher
values were observed in KSK-434 and Shadab. Among the coarse rice cultivars, Shadab showed better amylose and lower
protein contents, exhibiting its suitability for extrusion and puffing purposes. Additionally, brown rice fraction of all cultivars
should be made part of regular diet due better nutritional values with respect to protein, fiber and mineral contents.
Ghazala Kausar, Mian Kamran Sharif, Muhammad Saeed, Muhammad Shahid. (2020) SCREENING OF PAKISTANI COARSE RICE CULTIVARS FROM PUNJAB AND SINDH FOR END-USE QUALITY, Pakistan Journal of Agricultural Sciences, Volume 57, Issue 4.
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