Volume 7
Issue 1
Food Science and Technology
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume7/issue1/food/abs-04.html
THE CHANGES OF SOME ENZYMES ACTIVITIES DURING GERMINATION OF RYE KERNELS
Piotr Kołodziejczyk, Jan Michniewicz
ABSTRACT
The effect of germination on the rate of formation of some endo- and exohydrolases, important in baking, in rye kernels was examined. Germination of the rye gave increase in a-amylase, endo-b-xylanase, endo-b-glucanase, b-xylosidase, a-arabinosidase, b-glucosidase as well as endo- and exopeptidases activities. The most intensive changes of activities in the group of examined enzymes were observed for a-amylase. b-amylase activity did not significantly increase on germination. The increase of endohydrolases activities in germinating rye kernels was much more markedly compared with activities of exohydrolases.
Key words: rye, germination, endoenzymes and exoenzymes.