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Ultrasonic treatment for improved solution properties of a high-molecular weight exopolysaccharide produced by a medicinal fungus
High-power ultrasound (20 kHz) was applied to modify the physicochemical properties of a high-molecular weight (MW) exopolysaccharide (EPS) from mycelial culture of a medicinal fungus. At 35 W/cm 2 or higher ultrasound power, the apparent and intrinsic viscosities of EPS solution dropped by nearly 8...
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| Published in: | Bioresource technology 2010-07, Vol.101 (14), p.5517-5522 |
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| Main Authors: | , , , |
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| Language: | English |
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| container_end_page | 5522 |
| container_issue | 14 |
| container_start_page | 5517 |
| container_title | Bioresource technology |
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| creator | Wang, Zhao-Mei Cheung, Yi-Ching Leung, Po-Hong Wu, Jian-Yong |
| description | High-power ultrasound (20
kHz) was applied to modify the physicochemical properties of a high-molecular weight (MW) exopolysaccharide (EPS) from mycelial culture of a medicinal fungus. At 35
W/cm
2 or higher ultrasound power, the apparent and intrinsic viscosities of EPS solution dropped by nearly 85% within 10
min, and the water solubility was increased by more than fourfold. The ultrasonic treatment led to a notable reduction of the maximum MW and a more uniform MW distribution, but no significant change in the primary structure of the EPS molecules. In contrast, the intrinsic viscosity of EPS was reduced by only 20% in 1.0
M sulfuric acid at 50
°C for 9
h. Ultrasound was proven an effective and favorable means for improving the solution properties of high-MW bioactive polysaccharides in mild conditions. |
| doi_str_mv | 10.1016/j.biortech.2010.01.134 |
| format | article |
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kHz) was applied to modify the physicochemical properties of a high-molecular weight (MW) exopolysaccharide (EPS) from mycelial culture of a medicinal fungus. At 35
W/cm
2 or higher ultrasound power, the apparent and intrinsic viscosities of EPS solution dropped by nearly 85% within 10
min, and the water solubility was increased by more than fourfold. The ultrasonic treatment led to a notable reduction of the maximum MW and a more uniform MW distribution, but no significant change in the primary structure of the EPS molecules. In contrast, the intrinsic viscosity of EPS was reduced by only 20% in 1.0
M sulfuric acid at 50
°C for 9
h. Ultrasound was proven an effective and favorable means for improving the solution properties of high-MW bioactive polysaccharides in mild conditions.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2010.01.134</identifier><identifier>PMID: 20171885</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Biological and medical sciences ; Cell Line ; Congo Red - pharmacology ; Cordyceps sinensis ; Culture ; EPS ; Exopolysaccharide ; Fundamental and applied biological sciences. Psychology ; Fungi ; Fungi - metabolism ; Humans ; Hydrolysis ; Microscopy, Atomic Force - methods ; Molecular Weight ; Polysaccharides ; Polysaccharides - chemistry ; Solubility ; Sonication ; Spectrophotometry, Infrared - methods ; Temperature ; Time Factors ; Ultrasonic degradation ; Ultrasonic treatment ; Ultrasonics ; Ultrasound ; Viscosity ; Viscosity and solubility</subject><ispartof>Bioresource technology, 2010-07, Vol.101 (14), p.5517-5522</ispartof><rights>2010 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><rights>Copyright (c) 2010 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c552t-339d063faba27e1d7145aacf49014f98923aa1e258f2102bf917ae9d4b78e14e3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22629531$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20171885$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, Zhao-Mei</creatorcontrib><creatorcontrib>Cheung, Yi-Ching</creatorcontrib><creatorcontrib>Leung, Po-Hong</creatorcontrib><creatorcontrib>Wu, Jian-Yong</creatorcontrib><title>Ultrasonic treatment for improved solution properties of a high-molecular weight exopolysaccharide produced by a medicinal fungus</title><title>Bioresource technology</title><addtitle>Bioresour Technol</addtitle><description>High-power ultrasound (20
kHz) was applied to modify the physicochemical properties of a high-molecular weight (MW) exopolysaccharide (EPS) from mycelial culture of a medicinal fungus. At 35
W/cm
2 or higher ultrasound power, the apparent and intrinsic viscosities of EPS solution dropped by nearly 85% within 10
min, and the water solubility was increased by more than fourfold. The ultrasonic treatment led to a notable reduction of the maximum MW and a more uniform MW distribution, but no significant change in the primary structure of the EPS molecules. In contrast, the intrinsic viscosity of EPS was reduced by only 20% in 1.0
M sulfuric acid at 50
°C for 9
h. Ultrasound was proven an effective and favorable means for improving the solution properties of high-MW bioactive polysaccharides in mild conditions.</description><subject>Biological and medical sciences</subject><subject>Cell Line</subject><subject>Congo Red - pharmacology</subject><subject>Cordyceps sinensis</subject><subject>Culture</subject><subject>EPS</subject><subject>Exopolysaccharide</subject><subject>Fundamental and applied biological sciences. 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kHz) was applied to modify the physicochemical properties of a high-molecular weight (MW) exopolysaccharide (EPS) from mycelial culture of a medicinal fungus. At 35
W/cm
2 or higher ultrasound power, the apparent and intrinsic viscosities of EPS solution dropped by nearly 85% within 10
min, and the water solubility was increased by more than fourfold. The ultrasonic treatment led to a notable reduction of the maximum MW and a more uniform MW distribution, but no significant change in the primary structure of the EPS molecules. In contrast, the intrinsic viscosity of EPS was reduced by only 20% in 1.0
M sulfuric acid at 50
°C for 9
h. Ultrasound was proven an effective and favorable means for improving the solution properties of high-MW bioactive polysaccharides in mild conditions.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>20171885</pmid><doi>10.1016/j.biortech.2010.01.134</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0960-8524 |
| ispartof | Bioresource technology, 2010-07, Vol.101 (14), p.5517-5522 |
| issn | 0960-8524 1873-2976 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_745635992 |
| source | ScienceDirect Journals |
| subjects | Biological and medical sciences Cell Line Congo Red - pharmacology Cordyceps sinensis Culture EPS Exopolysaccharide Fundamental and applied biological sciences. Psychology Fungi Fungi - metabolism Humans Hydrolysis Microscopy, Atomic Force - methods Molecular Weight Polysaccharides Polysaccharides - chemistry Solubility Sonication Spectrophotometry, Infrared - methods Temperature Time Factors Ultrasonic degradation Ultrasonic treatment Ultrasonics Ultrasound Viscosity Viscosity and solubility |
| title | Ultrasonic treatment for improved solution properties of a high-molecular weight exopolysaccharide produced by a medicinal fungus |
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