7 mM (stimulatory) glucose, supplemented with cinnamic acid
or cinnamaldehyde in different concentrations.
For instance cinnamic acid
and ferulic acid reduce the availability of P, Fe and other nutrients.
When we ferment crushed grapes on their skins, it is challenging to extract the anthocyanin pigments as well as flavor components such as the spicy derivatives of cinnamic acid
, which are not soluble.
A key step in the process, which ARS has patented, is using zinc chloride to catalyze the conversion of milkweed oil's triglycerides into the UV-absorbing cinnamic acid
5 and 10 mM decreased SOD activity from the tomato root during the first five days after treatment, whereas cinnamic acid
treatment decreased SOD activity at five and 10 days after treatment (Zhang et al.
The findings revealed the presence of benzoic and cinnamic acid
derivatives; among them, a majority is present in a glycosidic form.
The isolated compounds were identified as two indoles, 5- hydroxy-1H-indole-3-carboxylic acid (1) and 5- hydroxy-1H-indole-3-carboxylic acid methyl ester (2) ; three AY-carboline derivatives, 6-hydroxy- 1,2,3,4-tetrahydro-AY-carboline-3-carboxylic acid (3), hyrtioreticulin A (4) and hyrtioreticulin B (5) ; and cinnamic acid
It is interesting to note that another aromatic acid present in the samples, cinnamic acid
, produced negative results in the virucidal activity test.
Enzyme activity was expressed as [micro]mol cinnamic acid
Determination of hesperetin, cinnamic acid
and nicotinic acid in propolis with micellar electrokinetic capillary chromatography.
Other phenolic acids (p- hydroxybenzoic acid caffeic acid and cinnamic acid
derivatives) were present at substantially lower concentrations in carrots.
Phytochemical studies on this genus showed the presence of derivatives of cinnamic acid
and flavonoids .