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Extracellular and capsular polysaccharides are produced by a variety of pathogenic and soil-dwelling bacteria. Curdlan is a neutral β-(1,3)-glucan, perhaps with a few intra- or interchain 1,6-linkages, produced as an exopolysaccharide by soil bacteria of the family
Rhizobiaceae. Four genes required
273:
Curdlan has numerous applications as a gelling agent in the food, construction, and pharmaceutical industries and has been approved as a food additive by the U. S. Food and Drug
Administration. Its use is being evaluated in fat replacement studies in foodstuffs such as sausages, meat patties and
266:), encoding β-(1,3)-glucan synthase catalytic subunit, flanked by two additional genes. A separate locus contains a putative regulatory gene, crdR. A membrane-bound phosphatidylserine synthase, encoded by pss
597:"Compendium of Food Additive Specifications (Addendum 7) Joint FAO/WHO Expert. Curdlan: New specification prepared at the 53rd JECFA (1999) and published in FNP 52 Add 7 (1999)"
181:
270:, is also necessary for maximal production of curdlan of high molecular mass. Nitrogen starvation upregulates the curdlan operon and increases the rate of curdlan synthesis.
398:
341:
355:
Xiao-Bei Zhan, Chi-Chung Lin, Hong-Tao Zhang (2012). "Recent advances in curdlan biosynthesis, biotechnological production, and applications".
547:"Transcriptome profiling of a curdlan-producing Agrobacterium reveals conserved regulatory mechanisms of exopolysaccharide biosynthesis"
457:"Topological characterization of an inner membrane (1-->3)-beta-D-glucan (curdlan) synthase from Agrobacterium sp. strain ATCC31749"
498:"Topological characterization of an inner membrane (1->3)- -D-glucan (curdlan) synthase from Agrobacterium sp. strain ATCC31749"
612:"A review presenting production, characterization, and applications of biopolymer curdlan in food and pharmaceutical sectors"
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310:"Growth and Glucan (10C3K) Production by a Mutant of Alcaligenes faecalis var myxogenes in Defined Medium"
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229:. Subsequently, the taxonomy of this non-pathogenic curdlan-producing bacterium has been reclassified as
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McIntosh M, Stone BA, Stanisich VA (2005). "Curdlan and other bacterial (1-->3)-beta-D-glucans".
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Aquinas, Natasha; Bhat M, Ramananda; Selvaraj, Subbalaxmi (2021-08-25).
211:. Curdlan consists of β-(1,3)-linked glucose residues and forms elastic
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sp. ATCC31749, which produces curdlan in extraordinary amounts, and
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Except where otherwise noted, data are given for materials in their
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Harada T., Fujimori K., Hirose S., Masada M. (1966).
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455:Karnezis T, Epa VC, Stone BA, Stanisich VA (2003).
239:for curdlan production have been identified in
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357:Applied Microbiology and Biotechnology
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545:Ruffing AM, Chen RR (February 2012).
207:, a high-molecular-weight polymer of
203:is a water-insoluble linear beta-1,3-
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219:. It was reported to be produced by
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162:(at 25 °C , 100 kPa).
1:
496:Karnezis, T. (2003-06-10).
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629:10.1007/s00289-021-03860-1
426:10.1007/s00253-005-1959-5
414:Appl Microbiol Biotechnol
369:10.1007/s00253-011-3740-2
248:Agrobacterium tumefaciens
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215:upon heating in aqueous
564:10.1186/1475-2859-11-17
152:odourless white powder
327:10.1271/bbb1961.30.764
515:10.1093/glycob/cwg093
474:10.1093/glycob/cwg093
274:other meat products
222:Alcaligenes faecalis
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189:Infobox references
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197:Chemical compound
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83:(thickeners, ...)
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31:Identifiers
320:: 764–769.
149:Appearance
109:Properties
295:References
289:Gellan gum
217:suspension
99:6930DL209R
59:ChemSpider
48:54724-00-4
38:CAS Number
646:237299620
638:1436-2449
524:1460-2423
235:species.
227:myxogenes
660:Category
583:22305302
532:12851288
483:12851288
442:13123359
434:15818477
377:22124723
278:See also
76:E number
17:Curdlan
574:3293034
385:7185132
284:Callose
264:PF13632
209:glucose
201:Curdlan
182:what is
180: (
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257:Q9X2V0
253:operon
205:glucan
177:verify
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642:S2CID
438:S2CID
381:S2CID
225:var.
81:E424
634:ISSN
579:PMID
528:PMID
520:ISSN
479:PMID
430:PMID
399:link
373:PMID
342:link
261:Pfam
213:gels
90:UNII
66:none
624:doi
569:PMC
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172:N
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