Effect of cultivation temperature and light intensity on fatty acid production in the red alga Prophyridium cruentum
✍ Scribed by Dr. T. Řezanka; J. Doucha; P. Mareš; M. Podojil
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 275 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0233-111X
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✦ Synopsis
The spectrum of fatty acids was studied in a unicellular red alga Porphyridium cruentum, strain 1380-la, grown in a photostat a t 21,24 and 28 "C and irradiance 30 and 60 Wm-2. Basic growth characteristics were determined for the strain under these conditions.
The proportion of unsaturated fatty acids (18:2, 20:4, 20:5) increased with decreasing cultivation temperature, their relative proportion changing depending on irradiation intensity; the proportion of 18:2 and 20:4 acids was higher a t a subsaturation irradiance (30 Wm-2) while a t saturation irradiance (60 W rn+) the proportion of the 20: 5 acid was substantially increased. The production of saturated acids (16:O) declined with decreasing temperature.