A polyhydroxyalkanoate is disclosed which has in the molecule a unit represented by Chemical Formula (1).
1
wherein R is arbitrarily selected from a hydrogen atom, a halogen atom, CN, NO
2
, COOR′, SO
2
R″, CH
3
, C
2
H
5
, C
3
H
7
, C(CH
3
)
2
H and C(CH
3
)
3
; where R′ is H, Na, K, CH
3
or C
2
H
5
, and R″ is OH, ONa, OK, a halogen atom, OCH
3
or OC
2
H
5
; and x is an integer arbitrarily selected from 1 to 8; with the proviso that a polyhydroxyalkanoate is excluded which has a hydrogen atom as R and x in all the units is 2 or 4. Also disclosed is a process for producing the polyhydroxyalkanoate by the use of a microorganism having the ability to produce the polyhydroxyalkanoate and accumulate it in the bacterial body.
本发明公开了一种聚羟基烷酸酯,其分子中含有
化学式 (1) 所代表的单元。
1
其中 R 可任意选自氢原子、卤素原子、CN、NO
2
、COOR′、SO
2
R″、CH
3
, C
2
H
5
, C
3
H
7
C(CH
3
)
2
H 和 C(CH
3
)
3
其中 R′为 H、Na、K、CH
3
或 C
2
H
5
而 R″ 是 OH、ONa、OK、卤素原子、OCH
3
或 OC
2
H
5
和 x 是任意选自 1 至 8 的整数;但不包括以氢原子作为 R 且所有单元中 x 为 2 或 4 的聚羟基烷酸酯。本发明还公开了一种生产聚羟基烷酸的工艺,使用的微
生物具有生产聚羟基烷酸并在细菌体内积累的能力。