Study on antarctic yeast Rhodotorula sp.NJ-298 producing astaxanthin
- VernacularTitle:南极酵母Rhodotorula sp.NJ-298产虾青素的初步研究
- Author:
Junling LIU
;
Jinlai MIAO
;
Quanfu WANG
;
Zou ZHENG
;
Guangyou LI
- Publication Type:Journal Article
- Keywords:
antarctic yeast;
Rhodotorula sp.;
carotenoids;
astaxanthin;
free radicals
- From:
Chinese Journal of Marine Drugs
1994;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
A yeast strain Rhodotorula sp.NJ-298,which was isolated from antarctic sea-ice,could produce carotenoids pigment,and the total production was 1986?g?g~(-1).UV-visible spectrum and LC/MS analysis indicated astaxanthin was the major component of the carotenoids,and HPLC analysis showed its content accounted for 81.9 % of total carotenoids productoin.Maximum astaxanthin production 6506 ?g?L~(-1) was obtained when the yeast was grown at steady-state phase.Optimum temperature for the strain grow was at 8℃,and sodium acetate and peptone were the best carbon and nitrogen sources for the astaxanthin production.Moreover,the pigment had strong activity of scavenging free radicals,and the IC_(50) was 0.40 ?g?mL~(-1) by DPPH assay.
