Juliano et al. - 1993 - Grain Quality Evaluation of World Rices

Europe
E
urope produced 2.2 million t of rough rice in 1988 (0.45% of
world total). The corresponding rough rice availability in 1986-
88 was 2.9 million t (FAO 1990a,b). Per capita milled rice
supply in 1986-88 was 3.8 kg/yr.
Bulgaria
R
ough rice production in Bulgaria was 50,000 t in 1989 (FAO
1990b). Annual per capita consumption of milled rice was 4 kg
in 1979-81 (FAO 1984) and 4.4 kg in 1986-88 (FAO 1990a).
Rice production in Bulgaria was 99% Krasnodarski 424 and 1 %
Belozem (K. Perfanov, Institute of Introduction and Plant Genetic
Resources, 1990, pers. commun.). Krasnodarski 424 had intermediate
AC, low GT, and soft GC (Appendix). Belozem had low AC, low GT,
and soft GC. Both had similar grain size and shape (Table 7). All 1985
samples had short, bold grains, except N:11M and Plovdiv 22, which
had medium grain. Most of these samples had low AC, compared with
earlier samples which had up to 27% AC. Krasnodarski 424 had the
softest cooked rice despite its intermediate AC, probably because of its
low protein content.
Grain length and width were negatively correlated ( r = –0.54**,
n = 14). Amylose content correlated with alkali spreading value
( r = –0.60**, n = 23), and Amylograph peak viscosity ( r = –0.63**, n = 18),
setback ( r = 0.71**) and consistency ( r = 0.78**). Cooked rice hardness
correlated with GC ( r = –0.64**, n = 15) and protein content ( r = 0.71**),
whereas cooked rice stickiness correlated with protein content
( r = –0.79*, n = 8), GC ( r = –0.79*), and Amylograph setback ( r = –0.76*)
and consistency ( r = –0.76*).