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| Content Provider | Springer Nature Link |
|---|---|
| Author | Olennikov, D. N. Rokhin, A. V. |
| Copyright Year | 2010 |
| Abstract | Galactomannans from the seeds of Ural licorice (Glycyrrhiza uralensis Fisch.) obtained by hot water extraction of freshly ripened (GGu-1) and overwintered (GGu-2) seeds were studied. GGu-1 and GGu-2 (yield, 1.98 and 1.99% of the seed weight) had molecular weights of 1379 and 877 kDa, respectively; their solutions were characterized by high viscosity ([η 1193.1 and 765.8 mg/g, respectively) and optical activity ([αD, +64.8 and +65.6 deg, respectively). Their galactose-to-mannose ratio was 1: 1.52 and 1: 1.50, respectively. According to IR and 13C NMR spectroscopic data and methylation analysis, the polymeric chains of GGu-1 and GGu-2 are comprised of 1,4-β-D-mannopyranose residues substituted at C-6 with single α-D-galactopyranose residues. The content of mannobiose units Man-Man, (Gal)Man-Man/Man-Man(Gal), and (Gal)Man-Man(Gal) differentially substituted with galactose in macromolecules GGu-1 and GGu-2 was 25.2, 18.4 and 55.9% for GGu-1 and 26.5, 32.5, and 41.0% for GGu-2. |
| Starting Page | 540 |
| Ending Page | 544 |
| Page Count | 5 |
| File Format | |
| ISSN | 00036838 |
| Journal | Applied Biochemistry and Microbiology |
| Volume Number | 46 |
| Issue Number | 5 |
| e-ISSN | 16083024 |
| Language | English |
| Publisher | SP MAIK Nauka/Interperiodica |
| Publisher Date | 2010-09-11 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Medical Microbiology Microbiology Biochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biochemistry Applied Microbiology and Biotechnology |
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