Dietary tyramine in high doses acts as a pseudotransmitter with stimulant and pressor effects. Tyramine is a product of bacterial tyrosine metabolism, leading to high levels in aged or unfresh protein-rich food such as cheese.
The tyramine content of fruits is generally low.
The tyramine content of fresh raspberries varies from 12.8 to 92.5 ug/g. and that of raspberry jams from 8.0 to 38.4 ug/g.
The tyramine level in raspberries in comparison with that in other fruit indicates that tyramine is a useful indicator of the presence of raspberry in fruit products. Other fruits containing low level of tyramine are avocados, bananas, figs, red plums, pineapples, raspberries.
Excess tyramine can cause sudden sometimes fatal increase in blood pressure.
Tyramine content in raspberries
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