Nutritional changes of common oat (Avena sativa L.) and naked oat (Avena nuda L.) during germination
D. Gabrovská, V. Fiedlerová, M. Holasová, E. Mašková, J. Ouhrabková, J. Rysová, R. Winterová, A. Michalováhttps://doi.org/10.17221/10691-CJFSCitation:D. Gabrovská, V. Fiedlerová, M. Holasová, E. Mašková, J. Ouhrabková, J. Rysová, R. Winterová, A. Michalová (2004): Nutritional changes of common oat (Avena sativa L.) and naked oat (Avena nuda L.) during germination. Czech J. Food Sci., 22: 317-320.
Changes of basic nutrients (dry matter, ash, proteins, dietary fibre, fat, amino acids), vitamins (B1, B2,
niacin, pantothenic acid, B6, C, E and carotenoids), minerals and some trace elements (K, Ca, Mg, P, Zn, Fe, Cu and
Mn) during germination of common oat (species Auron) and naked oat (species Abel) were followed. Absorption
of water caused decrease of dry matter. Content of protein in dry matter increased due the storage starch decomposition
in germinating grains. Methionine was found to be the limiting amino acid. After 8 days of germination
the fat content was approximately by 7% and 40% lower and dietary fibre content by 212% and 142% higher in
naked oat and common oat, respectively (in dry matter). Content of vitamin B2, niacin, pantothenic acid, vitamin
B6, vitamin C and carotenoids increased by 429, 282, 188, 172, 447 and 478%, resp. in naked oat. The increase in
common oat was even higher, but with regard to lower original levels in dry grain, naked oat represented better
source of vitamins. No significant changes were found in vitamin B1, vitamin E content showed slight decrease.
Changes of minerals were more favourable in naked oat, increase of Ca, Mg, P, Zn, Fe and Cu between 23.7 and
60.7% of original value was observed. Contents of K and Mn were reduced in both tested oats.
nutritional evaluation; germination; common oat; naked oat