Chemistry Reference
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Table 1.3 Phenolic acids, alcohols, and aldehydes concentrations in oat groats and hulls (mg/kg). 8
Groats,
soluble
esters
Groats,
insoluble
bound
Groats, free acid fraction
Hulls, free acid
Sosulski
et al. 19
Xing &
White 20
Dimberg
et al. 21
Emmons &
Peterson 22
Sosulski
et al. 19
Sosulski
et al. 19
Xing &
White 20
Emmons &
Peterson 22
Compound
Caffeic acid
1.0
16.8
2.2
2.4
1.6
0.9
Catechol
tr
0.1
Coniferyl alcohol
0.8
o-Coumaric acid
6.9
p-Coumaric acid
0.7
44.9
1.6
0.9
0.5
0.8
59.7
9.7
Gallic acid
1.3
0.6
Ferulic acid
2.4
147.2
2.3
1.2
8.6
55.3
142.3
1.7
p-Hydroxybenzoic acid
0.7
3.5
0.7
tr
50.0
p-Hydroxybenzaldehyde
0.9
0.3
7.7
p-Hydroxyphenylacetic acid
0.4
0.6
tr
4.6
Protocatechuic acid
0.5
0.7
tr
tr
2.1
Salicylic acid
3.1
Sinapic acid
tr
0.5
4.3
tr
5.6
0.6
Syringic acid
2.3
3.0
tr
Vanillic acid
0.7
16.1
1.2
1.6
3.5
24.3
4.0
Vanillin
3.4
2.3
1.0
54.2
6.3
 
 
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