Last Updated：2025/11/23
(organic chemistry) Any of a class of phenylpropanoid (propylbenzene) type of molecules found in essentially all plants, generally dimeric or higher order, and produced by secondary metabolic pathways branching off of aromatic amino acid biosynthesis, in some cases having associated antioxidant or estrogenic (phytoestrogenic) activities; having in common with lignin the phenylpropanoid monomers, where lignin is a random oxidative polymerization of the same
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lignan
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Source Word
lignan
Noun
(organic
chemistry)
Any
of
a
class
of
phenylpropanoid
(propylbenzene)
type
of
molecules
found
in
essentially
all
plants,
generally
dimeric
or
higher
order,
and
produced
by
secondary
metabolic
pathways
branching
off
of
aromatic
amino
acid
biosynthesis,
in
some
cases
having
associated
antioxidant
or
estrogenic
(phytoestrogenic)
activities;
having
in
common
with
lignin
the
phenylpropanoid
monomers,
where
lignin
is
a
random
oxidative
polymerization
of
the
same
Japanese Meaning
リグナン：植物に広く存在するフェニルプロパノイド系の有機化合物群で、通常は二量体またはそれ以上の構造をとる。芳香族アミノ酸からの派生二次代謝経路によって合成され、リグニンと同様のフェニルプロパノイド単位を持つため、その名が付けられた。抗酸化作用や植物性エストロゲン（フィトエストロゲン）作用を示す場合がある。
Sense（1）
(organic
chemistry)
Any
of
a
class
of
phenylpropanoid
(propylbenzene)
type
of
molecules
found
in
essentially
all
plants,
generally
dimeric
or
higher
order,
and
produced
by
secondary
metabolic
pathways
branching
off
of
aromatic
amino
acid
biosynthesis,
in
some
cases
having
associated
antioxidant
or
estrogenic
(phytoestrogenic)
activities;
having
in
common
with
lignin
the
phenylpropanoid
monomers,
where
lignin
is
a
random
oxidative
polymerization
of
the
same
（ plural ）
