Biological Characteristics of Marine Bacterium Strain E18 and the Stability of its Indigo Pigment
- VernacularTitle:海洋细菌E18菌株的生物学特性及其蓝紫色素稳定性的研究
- Author:
Ai-Fei SUN
;
Rong-Yu ZHUANG
;
Guo-Liang WANG
;
- Publication Type:Journal Article
- Keywords:
Marine bacterium, Biological characteristic, Indigo pigment,Stability
- From:
Microbiology
1992;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
One strain of Pseudoalteromonas sp. E18 was isolated from the sea mud of Ningbo, Zhejiang. It can produce indigo pigment. The morphological, cultural and biochemical characteristics of the bacterium were studied. The indigo pigment was also extracted. The results showed that the maximum absorption peak of the pigment was at 579nm. The pigment was stable to UV, Na_2SO_3,It was also stable at pH 3～9. The pigment was unstable to the sunlight and high concentration H_2O_2. Temperature of 60℃～80℃ could increase the hue while temperature higher than 90℃ could reduce the hue.
