Volume 9 Number 3 (Jul. 2019)
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IJBBB 2019 Vol.9(3): 150-157 ISSN: 2010-3638
doi: 10.17706/ijbbb.2019.9.3.150-157

The Effects for Extracellular Polymeric Sustances of Cladophora glomerata under Different Culture pH and Salinities

Yi-Chao Lee, Hwey-Lin Sheu, Shui-Ping Chang
Abstract—The extracellular polymeric sustances (EPS) of algae have been studied as high-value natural resources for a number of application. Cladophora glomerata is the most abundant algae in freshwater throughout the world. This study discovered that under algal favoured pH environment, changing culture salinity can induce C. glomerata to secrete massive amount of EPS. Under pH 7.0 and pH 8.0, the total EPS increased from 3.10 mg g-1 fresh algae to 6.47 mg g-1 fresh algae, the protein to polysaccharide ratio (P/S) decreased from 0.31 to 0.21 with the increase in the salinity from 0 ‰ to 30.0‰. For pH 5.0, 6.0 and pH 9.0, 10.0 culture conditions, the total EPS between1.17 mg g-1 fresh algae to 4.32 mg g-1 fresh algae, the P/S ratio between 0.24 to 0.29 with the increase in the salinity from 0 ‰ to 30.0‰. Therefore, the total EPS and P/S ratio are influenced by culture salinity and pH obviously.

Index TermsCladophora glomerata, extracellular polymeric substances (EPS), protein, polysaccharide, salinity, pH.

The authors are with Department of Environmental Engineering, Kun Shan University, Tainan City, Taiwan (email: spchang@mail.ksu.edu.tw).

Cite: Yi-Chao Lee, Hwey-Lin Sheu, Shui-Ping Chang, "The Effects for Extracellular Polymeric Sustances of Cladophora glomerata under Different Culture pH and Salinities," International Journal of Bioscience, Biochemistry and Bioinformatics vol. 9, no. 3, pp. 150-157, 2019.

General Information

ISSN: 2010-3638 (Online)
Abbreviated Title: Int. J. Biosci. Biochem. Bioinform.
Frequency: Quarterly 
DOI: 10.17706/IJBBB
Editor-in-Chief: Prof. Ebtisam Heikal 
Abstracting/ Indexing:  Electronic Journals Library, Chemical Abstracts Services (CAS), Engineering & Technology Digital Library, Google Scholar, and ProQuest.
E-mail: ijbbb@iap.org
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