| Effect of salinity on the growth,and agar yield and composition of Gracilaria tenuistipitata var liui Zhang et Xia |
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| 作者姓名： | 贺丽虹 吴汪黔生 |
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| 作者单位： | [1]AquacultureDepartment,LifeScienceCollege,SuzhouUniversity,Suzhou215006 [2]DepartmentofBiology,HongkongUniversityofScienceandTechnology,Hongkong |
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| 摘 要： | Gracilaria tenuistipitata vahang et Xia is cultivated at two different salinites(21,33) in the laboratory for 4 weeks,The daily growth rate is determined.The total agar yield and fractional agar composition are analyzed.Results show that algae grow faster in low salinity.The total agar yield is higher under high salinity conditions than under low salinity conditions.Among the eight fractions extracted,the yields of cold water extract and 40% ethanol extract are about the highest.In low salinities the yields of autoclaved extract and 60% ethanol extract are higher,while the yield of cold water extract is lower relative to high salinities.
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| 关 键 词： | 盐度 琼脂产量 琼脂组分 江蓠属 洋菜植物琼脂 Gracilaria Tenuistiptiata var liui Zhanget Xia |
Effect of salinity on the growth, and agar yield and composition of Gracilaria tenuistipitata var liui Zhang et Xia |
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| He Lihong,Madeline Wu,SHEN Songdong,Wang Deli.Effect of salinity on the growth,and agar yield and composition of Gracilaria tenuistipitata var liui Zhang et Xia[J].Marina Science Bulletin,2002,4(1):76-81. |
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| Authors: | He Lihong Madeline Wu SHEN Songdong Wang Deli |
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| Abstract: | Gracilaria tenuistipitata varliui Zhang et Xia is cultivated at two different salinities (21, 33) in the laboratory for 4 weeks. The daily growth rate is determined. The total agar yield and fractional agar composition are analyzed. Results show that algae grow faster in low salinity. The total agar yield is higher under high salinity conditions than under low salinity conditions. Among the eight fractions extracted, the yields of cold water extract and 40% ethanol extract are about the highest. In low salinities the yields of autoclaved extract and 60% ethanol extract are higher, while the yield of cold water extract is lower relative to high salinities. |
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| Keywords: | Gracilaria tenuistipitata var liui Zhanget Xia salinity agar yield agar fraction |
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