Effect of ammonium on growth and carrageenan content inKappaphycus alvarezii(Gigartinales, Rhodophyta)

✍ Scribed by Li Rui; Li Jiajun; Wu Chaoyuan

• Book ID: 104618588
• Publisher: Springer
• Year: 1990
• Tongue: English
• Weight: 326 KB
• Volume: 204-205
• Category: Article
• ISSN: 1573-5141
• DOI: 10.1007/bf00040277

✦ Synopsis

Kappaphycus alvarezii, cultured in a region deficient in nitrogen with intermittent application of 10 mM ammonium at three-day intervals for 1 hour, attained a daily growth rate of 4 .6%, which was considered to be the optimum growth rate . Under such conditions, the C/N ratio was 29 with a carrageenan content of 58% and gel strength of 45-70 g cm -'. Gel strength of carrageenan was high when nitrogen content was high and vice versa.