Page 230 - Tandem Techniques
P. 230
Page 213
Creaser et al.[40] developed an analytical procedure for assaying flavones in fruit juices. The
flavenoids in citrus juices have been investigated extensively because of their pharmacological activity.
The principal citrus flavanones, naringenin, hesperetin and eriodictyol do not occur in juices as free
aglycones, but are combined through the C-7 hydroxy group with a sugar component such as ß-
neohesperidose or ß-rutinose. The neohesperidosides are thought to contribute bitterness to the fruit,
whereas not so the rutinosides.
Figure 5.30.
Selected Ion chromatograms of Fruit Extracts (ref. 40)
