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Open AccessArticle

Effects of Different Environmental Factors on the Growth and Bioactive Substance Accumulation of Porphyridium purpureum

School of Life Science, Shanxi University, Taiyuan 030006, China
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Int. J. Environ. Res. Public Health 2020, 17(7), 2221; https://doi.org/10.3390/ijerph17072221 (registering DOI)
Received: 14 February 2020 / Revised: 21 March 2020 / Accepted: 25 March 2020 / Published: 26 March 2020
(This article belongs to the Special Issue Green Food and Biowaste Valorisation)
Genus Porphyridium is a primitive single-celled red algae widely distributed in seawater, freshwater, and moist soil. It can synthesize bioactive substances such as phycoerythrin, extracellular polysaccharides and polyunsaturated fatty acids during the growth process. In this paper, the culture and bioactive substance yield of Porphyridium purpureum were studied by setting salinity, nitrogen-to-phosphorus ratio, and pH at different gradient levels. The results showed that the optimal conditions for the growth of P. purpureum were salinity 34 ppt, nitrogen-to-phosphorus ratio 169:1, and pH 8; the optimal conditions for obtaining the polysaccharides were salinity 17 ppt, nitrogen-to-phosphorus ratio 14:1, and pH 8; the optimal conditions for obtaining phycoerythrin were salinity 17 ppt, nitrogen-to-phosphorus ratio 68:1, and pH 8; the optimal conditions for obtaining the lipids were salinity 34 ppt, nitrogen-to-phosphorus ratio 1:1, and pH 8. In actual production applications, culture conditions should be set according to different product accumulation purposes in order to achieve the optimal production efficiency.
Keywords: Porphyridium purpureum; environmental factors; growth; bioactive substance accumulation Porphyridium purpureum; environmental factors; growth; bioactive substance accumulation
MDPI and ACS Style

Lu, X.; Nan, F.; Feng, J.; Lv, J.; Liu, Q.; Liu, X.; Xie, S. Effects of Different Environmental Factors on the Growth and Bioactive Substance Accumulation of Porphyridium purpureum. Int. J. Environ. Res. Public Health 2020, 17, 2221.

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