Effect of nitrogen and phosphorus on the growth and amino acid contents of Porphyra yezoensis |
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| Authors: | Xinshu Li Peiming He Juntian Xu Guanghui Fu Yaobai Chen |
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| Institution: | 1. Key Laboratory of Marine Biotechnology, Huaihai Institute of Technology, Haizhou, China;2. School of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China;3. School of Marine and Aquatic Culture, Lianyungang Institute of Marine and Aquatic Sciences, Liyungang, China |
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| Abstract: | The effects of nitrogen fertilizer (NF) and phosphorus fertilizer (PF) on the growth as well as protein amino acid (PAA) and free amino acid (FAA) contents of Porphyra yezoensis in sea water were investigated. Single NF application did not improve P. yezoensis growth, but significantly increased its amino acid content. Single PF application significantly increased P. yezoensis growth, but decreased its amino acid content. Combined application of NF and PF could significantly promote the P. yezoensis growth, increase its amino acid content (including flavour amino acid) and thus improve its edible quality. Results indicate that combined application of NF and PF contributed to the growth and quality of P. yezoensis. |
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| Keywords: |
Porphyra yezoensis
growth amino acid quality |
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