| Revision as of 00:21, 11 June 2011 editBob Burkhardt (talk | contribs)Autopatrolled, Extended confirmed users, Pending changes reviewers31,896 edits add info from 1905 NIE← Previous edit |
Latest revision as of 23:24, 6 April 2022 edit undoEsculenta (talk | contribs)Autopatrolled, Extended confirmed users58,689 edits removed Category:Lichenology; added Category:Lichen products using HotCat |
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{{chembox |
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| Verifiedfields = changed |
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| verifiedrevid = 370213683 |
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| verifiedrevid = 433643349 |
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| ImageFile = Beta-1,3-1,4-glucan.png |
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| ImageFile = Beta-1,3-1,4-glucan.png |
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| ImageSize = 200px |
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| IUPACName = |
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| IUPACName = |
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| OtherNames = Lichenan; Moss starch |
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| OtherNames = Lichenan; Moss starch |
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| Section1 = {{Chembox Identifiers |
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|Section1={{Chembox Identifiers |
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| CASNo_Ref = {{cascite|correct|??}} |
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| CASNo = 1402-10-4 |
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| CASNo = 1402-10-4 |
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| UNII_Ref = {{fdacite|correct|FDA}} |
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| PubChem = |
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| UNII = M7F3LRN53I |
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| ChEBI_Ref = {{ebicite|changed|EBI}} |
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| ChEBI = 6452 |
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| ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}} |
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| ChemSpiderID = none |
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| PubChem = 439241 |
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| PubChem_Comment = monomer |
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| Section2 = {{Chembox Properties |
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|Section2={{Chembox Properties |
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| Formula = (C<sub>6</sub>H<sub>10</sub>O<sub>5</sub>)<sub>x</sub> |
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| Formula = (C<sub>6</sub>H<sub>10</sub>O<sub>5</sub>)<sub>x</sub> |
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| MolarMass = Variable |
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| MolarMass = Variable |
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| Autoignition = }} |
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'''Lichenin''', also known as '''lichenan''' or '''moss starch''', is a complex ] occurring in certain species of ]s. It can be extracted from ''Cetraria islandica'' (]).<ref>{{cite journal | coauthors = Perlin AS, Suzuki S | year = 1962 | title = The Structure Of Lichenin: Selective Enzymolysis Studies | journal = ] | volume = 40 | issue = 1 | pages = 50–56 | publisher = ] | location = Canada | doi = 10.1139/v62-009 | author = Perlin, A.S. }}</ref> It has been studied since about 1957.<ref>{{cite journal | coauthors = Cunningham WL, Manners DJ | year = 1964 | month = March | title = Studies on carbohydrate-metabolizing enzymes. 11. The hydrolysis of lichenin by enzyme preparations from malted barley and Rhizopus arrhizus | journal = The Biochemical journal | volume = 90 | issue = 3 | pages = 596–602 | publisher = Published by Portland Press on behalf of the Biochemical Society | location = England | issn = 0264-6021 | pmid = 5833367 | last1 = Cunningham | first1 = WL | pmc = 1202740}}</ref> Chemically, lichenin consists of repeating ] units linked by β-1,3 and β-1,4 glycosidic bonds.<ref>{{cite journal | title = The Structure of Lichenin: Selective Enzymolysis Studies | author = A.S. Perlin and S. Suzuki | journal = Canadian Journal of Chemistry | volume = 40 | pages = 50–56 | doi = 10.1139/v62-009 | year = 1962}}</ref> |
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'''Lichenin''', also known as '''lichenan''' or '''moss starch''', is a complex ] occurring in certain species of ]s. It can be extracted from ''Cetraria islandica'' (]).<ref name="PerlinSuzuki">{{cite journal |last1=Perlin |first1=A. S. |last2=Suzuki |first2=S. |year=1962 |title=The Structure of Lichenin: Selective Enzymolysis Studies |journal=] |volume=40 |issue=1 |pages=50–56 |publisher=] |location=Canada |doi=10.1139/v62-009|doi-access=free }}</ref> It has been studied since about 1957.<ref>{{cite journal |last1=Cunningham |first1=WL |last2=Manners |first2=DJ |date=March 1964 |title=Studies on carbohydrate-metabolizing enzymes. 11. The hydrolysis of lichenin by enzyme preparations from malted barley and Rhizopus arrhizus |journal=The Biochemical Journal |volume=90 |issue=3 |pages=596–602 |publisher=Portland Press on behalf of the Biochemical Society |location=England |issn=0264-6021 |pmid=5833367 |pmc=1202740 |doi=10.1042/bj0900596}}</ref> |
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== Structure == |
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It is an important carbohydrate for ]s and ]s, which eat the lichen ]. |
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Chemically, lichenin is a ], consisting of repeating ] units linked by β-1,3 and β-1,4 glycosidic bonds.<ref name="PerlinSuzuki" /> |
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== Uses == |
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It can be extracted by digesting Iceland moss in a cold, weak solution of ] for some time, and then boiling. By this process the lichenin is dissolved and on cooling separates as a colorless jelly. ] imparts no color to it.<ref>{{Cite NIE|Lichenin|year=1905|vb=1}}</ref> |
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It is an important carbohydrate for ]s and ]s, which eat the lichen '']''. |
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It can be extracted by digesting Iceland moss in a cold, weak solution of ] for some time, and then boiling. By this process the lichenin is dissolved and on cooling separates as a colorless jelly. ] imparts no color to it.<ref>{{NIE|wstitle=Lichenin|year=1905|inline=1}}</ref> |
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==Other uses of the name== |
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==Other uses of the name== |
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{{biochem-stub}} |
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{{lichen-stub}} |
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