Extraction of novel sulfated polysaccharides from Aphanothece sacrum (Sur.) Okada, and its spectroscopic characterization
We extracted polysaccharides (PS) from using a hot alkaline solution which degraded other biopolymers such as proteins and nucleotides. The spectroscopy and elemental analyses indicated the PS contain carboxyls and sulfate groups. The degree of sulfation was estimated as about 10 mol %. H NMR studie...
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| Published in | Pure and applied chemistry Vol. 79; no. 11; pp. 2039 - 2046 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | English |
| Published |
Berlin
De Gruyter
01.01.2007
Walter de Gruyter GmbH |
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| Online Access | Get full text |
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| Abstract | We extracted polysaccharides (PS) from
using a hot alkaline solution which degraded other biopolymers such as proteins and nucleotides. The spectroscopy and elemental analyses indicated the PS contain carboxyls and sulfate groups. The degree of sulfation was estimated as about 10 mol %.
H NMR studies demonstrated that the PS of
had a dimethylated fucose unit. The combination of sulfate group and fucose in the prokaryotic PS was first evidenced by the direct spectroscopic studies. The PS showed efficient gelation behavior, binding to metal ions abundant in soil, and the swelling volume of the gel was approximately 250 times the dry volume. These results imply that PS of
, which has been mass cultivated in Japan for a long time, may have potential as an environmentally benign water absorbent. |
|---|---|
| AbstractList | We extracted polysaccharides (PS) from Aphanothece sacrum using a hot alkaline solution which degraded other biopolymers such as proteins and nucleotides. The spectroscopy and elemental analyses indicated the PS contain carboxyls and sulfate groups. The degree of sulfation was estimated as about 10 mol %. 1H NMR studies demonstrated that the PS of A. sacrum had a dimethylated fucose unit. The combination of sulfate group and fucose in the prokaryotic PS was first evidenced by the direct spectroscopic studies. The PS showed efficient gelation behavior, binding to metal ions abundant in soil, and the swelling volume of the gel was approximately 250 times the dry volume. These results imply that PS of A. sacrum, which has been mass cultivated in Japan for a long time, may have potential as an environmentally benign water absorbent. Abstract We extracted polysaccharides (PS) from Aphanothece sacrum using a hot alkaline solution which degraded other biopolymers such as proteins and nucleotides. The spectroscopy and elemental analyses indicated the PS contain carboxyls and sulfate groups. The degree of sulfation was estimated as about 10 mol %. 1 H NMR studies demonstrated that the PS of A. sacrum had a dimethylated fucose unit. The combination of sulfate group and fucose in the prokaryotic PS was first evidenced by the direct spectroscopic studies. The PS showed efficient gelation behavior, binding to metal ions abundant in soil, and the swelling volume of the gel was approximately 250 times the dry volume. These results imply that PS of A. sacrum , which has been mass cultivated in Japan for a long time, may have potential as an environmentally benign water absorbent. We extracted polysaccharides (PS) from using a hot alkaline solution which degraded other biopolymers such as proteins and nucleotides. The spectroscopy and elemental analyses indicated the PS contain carboxyls and sulfate groups. The degree of sulfation was estimated as about 10 mol %. H NMR studies demonstrated that the PS of had a dimethylated fucose unit. The combination of sulfate group and fucose in the prokaryotic PS was first evidenced by the direct spectroscopic studies. The PS showed efficient gelation behavior, binding to metal ions abundant in soil, and the swelling volume of the gel was approximately 250 times the dry volume. These results imply that PS of , which has been mass cultivated in Japan for a long time, may have potential as an environmentally benign water absorbent. |
| Author | Okajima-Kaneko, Maiko Ono, Masateru Kaneko, Tatsuo Kabata, Kiyotaka |
| Author_xml | – sequence: 1 givenname: Maiko surname: Okajima-Kaneko fullname: Okajima-Kaneko, Maiko organization: School of Materials Science, Japan Advanced Institute of Science and Technology, Asahidai, Nomi, Ishikawa 923-1292, Japan – sequence: 2 givenname: Masateru surname: Ono fullname: Ono, Masateru organization: School of Agriculture, Kyushu Tokai University, 5435 Minamiaso, Aso, Kumamoto 869-1404, Japan – sequence: 3 givenname: Kiyotaka surname: Kabata fullname: Kabata, Kiyotaka organization: School of Agriculture, Kyushu Tokai University, 5435 Minamiaso, Aso, Kumamoto 869-1404, Japan – sequence: 4 givenname: Tatsuo surname: Kaneko fullname: Kaneko, Tatsuo organization: School of Materials Science, Japan Advanced Institute of Science and Technology, Asahidai, Nomi, Ishikawa 923-1292, Japan |
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| Snippet | We extracted polysaccharides (PS) from
using a hot alkaline solution which degraded other biopolymers such as proteins and nucleotides. The spectroscopy and... Abstract We extracted polysaccharides (PS) from Aphanothece sacrum using a hot alkaline solution which degraded other biopolymers such as proteins and... We extracted polysaccharides (PS) from Aphanothece sacrum using a hot alkaline solution which degraded other biopolymers such as proteins and nucleotides. The... |
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| SubjectTerms | Biopolymers cyanobacterium extraction Fucose Gelation gels NMR Nuclear magnetic resonance Nucleotides Polysaccharides Soil swelling spectroscopy Sulfation |
| Title | Extraction of novel sulfated polysaccharides from Aphanothece sacrum (Sur.) Okada, and its spectroscopic characterization |
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