Environmental Engineering Reference
In-Depth Information
Scheme 8
5.2
Polyphenol Derivatives
Polyphenol derivatives of (+)-catechin
521
and (-)-epicatechin
522
extracted
from a mountain cherry,
Prunus jamasakura
, kaempferol coumaroylglucopy-
ranoside
523
extracted from the leaves of an oak,
Quercus dentata
,polydatin
6
-
O
-(
E
)-
p
-coumarate
524
,raponticin6
-
O
-(
E
)-
p
-coumarate
525
extracted
from mallee,
Eucalyptus rubida
, showed repellent activities against the blue
mussel,
Mytilus edulis
as shown in Table 13 [48].
A macrocarpal named macrocarpal K
526
, an isopentylphloglucinol-
-
eudesinol adduct, was isolated from the leaves of mallee,
Eucalyptus globulus
,
and also six macrocarpals A, B, E, am-1, H and K showed attachment-
inhibiting activities against the blue mussel
Mytilus edulis galloprovincialis
.
These five macrocarpals A, B, E, H and K showed potent attachment-
inhibiting activities against the blue mussel, which was 3 times higher than
that of the standard antifoulant CuSO
4
[53]. Further, four kinds of polyphenol
compounds, 3,5-diformyl phloroglucinols (
528
) also showed the same high
repellent activity to that of the standard antifoulant CuSO
4
[56] against the
blue mussel.
β
