Relationship between antioxidant activities and red tablebeet root pigments with a potential application as a natural juice blend [electronic resource].

Includes references.

The antioxidant activities of red tablebeet roots were invesgtiaged using DPPI I-ESR system and conjugated diene method. The obtained data indicated an excellent antioxidant and antiradical activities against DPPH and sunflower oil, respectively. The stability of tablebeet pigments against two extreme pH values (3.5 and 8.5) as well as different alevated temperature (30. 50,75 and I 00°e) revealed an excellent tree radical scavenging activity even at 100 ºc. This unique characteristic suggested that red tablebeet juice could be blended with other juio;es that contained high amount of anthocyanins to substitute the losses that may occur in anthocyan ins during pasteurization.

Summary in Arabic.