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

low GT, and mainly soft GC (Table 7). All the 1986 samples had low AC
except for Safari, which had 21% AC (Appendix). Estrella A did not
have low GT or soft GC, but had extra long, slender grain. It was the
only long-grained Portuguese variety. Ponta Rubra had the highest AC
(23-26%). Most samples had low Amylograph setback and consistency.
Safari and Banata 35 had cooked rice harder than that of higher AC
Ponta Rubra.
Grain length and width were significantly correlated ( r = –0.71**,
n = 19). Cooked rice stickiness correlated with Amylograph setback
( r = –0.93**, n = 11) and consistency ( r = –0.88**), AC ( r = -0.93**), and
GC ( r = 0.65*). Cooked rice hardness correlated with GC ( r = –0.68**,
n = 21) and Amylograph consistency ( r = –0.44*). Amylose content
correlated with Amylograph setback ( r = 0.87**, n = 21) and consistency
( r = 0.77**), and grain length ( r = –0.50**, n = 19). Grain length correlated
with protein content ( r = 0.68**, n = 19) and alkali spreading value
( r = –0.80**). Grain width correlated with Amylograph peak viscosity
( r = –0.66**, n = 19). GC correlated with protein content ( r = –0.48**,
n = 31).
Russia
R
ussia
produced 2.5 million t of rough rice in 1989 (FAO 1990b).
Annual per capita consumption of milled rice was about 9 kg in
1979-81 (FAO 1984) and 7.3 kg in 1986-88 (FAO 1990a).
Milled rices had low-intermediate AC, generally low GT, and soft
GC (Appendix, Table 7). Luch and Dubovski 129 had the softest cooked
rice. All had low Amylograph setback and consistency. Samples from
1986 had low AC and