A B S T R A C T
This study aimed to characterize non-traditional types of rice imported to the Czech Republic. Several
chemical parameters of rice types were evaluated, and easy procedures for determination of insoluble
dietary fibre, neutral-detergent fibre and the in vitro digestibility were suggested. Twelve imported rice
types commonly available in the Czech market were purchased and subjected to analyses. Dry matter,
ash, crude oil, starch and protein were determined in all samples of rice types. Additionally, in vitro
organic matter digestibility, dry matter digestibility, dietary and neutral-detergent fibre contents were
determined too. The highest amount of dietary fibre was detected in red (3.49%) and basmati natural rice
(3.26%) (P < 0.05) and the highest content of neutral-detergent fibre was found in red (8.22%), red
jasmine (7.61%) and brown jasmine rice (7.98%) (P < 0.05). While the best digestibility was assessed in
parboiled (97.51%), parboiled with Indian (97.79%), lilac (96.12%) and milky round-grained rice (96.25%)
(P < 0.05), the poorest digestibility was found in Thaibonnet natural (77.82%) and basmati natural rice
(87.48%) (P < 0.05). High values of dry matter digestibility and organic matter digestibility are in relation
with low amounts of dietary and neutral-detergent fibre and also with higher starch and protein content
of rice grains.
A B S T R A C TThis study aimed to characterize non-traditional types of rice imported to the Czech Republic. Severalchemical parameters of rice types were evaluated, and easy procedures for determination of insolubledietary fibre, neutral-detergent fibre and the in vitro digestibility were suggested. Twelve imported ricetypes commonly available in the Czech market were purchased and subjected to analyses. Dry matter,ash, crude oil, starch and protein were determined in all samples of rice types. Additionally, in vitroorganic matter digestibility, dry matter digestibility, dietary and neutral-detergent fibre contents weredetermined too. The highest amount of dietary fibre was detected in red (3.49%) and basmati natural rice(3.26%) (P < 0.05) and the highest content of neutral-detergent fibre was found in red (8.22%), redjasmine (7.61%) and brown jasmine rice (7.98%) (P < 0.05). While the best digestibility was assessed inparboiled (97.51%), parboiled with Indian (97.79%), lilac (96.12%) and milky round-grained rice (96.25%)(P < 0.05), the poorest digestibility was found in Thaibonnet natural (77.82%) and basmati natural rice(87.48%) (P < 0.05). High values of dry matter digestibility and organic matter digestibility are in relationwith low amounts of dietary and neutral-detergent fibre and also with higher starch and protein contentof rice grains.
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