PL
Analizowano zawartość chlorofili, karotenoidów, białka ogólnego i fenoli w ekstraktach liściowych otrzymanych metodą termiczną z soku lucerny (odm. Natsuwakaba) w obecności antyutleniacza ETX, jak również preparaty otrzymane poprzez wysuszenie całego soku w stosunku do preparatów uzyskanych z soku bez modyfikacji chemicznej.
EN
The contents of carotenoids, chlorophylls, total protein and polyphenols in protein concentrates obtained by thermal coagulation from alfalfa (var. Natsuwakaba) juice with ETX (ethoxyquin) added at 0.2%, and in the preparations obtained by drying ef ETX-containing 100% juice were analysed. ETX added to the juice acted to increase carotenoid and phenol contents, and to decrease the chlorophyll content in the tested products. The highest (41%) decrease of chlorophyll content was observed in the product obtained by drying the 100% juice. ETX efficiency was higher in the concentrates obtained from the alfalfa cut in spring than in those from the autumn alfalfa cuts (28% and 13% increase in carotenoid content, respectively).