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Title:
Determination of critical aggregation concentration and aggregation number of acid-soluble collagen from walleye pollock (Theragra chalcogramma) skin using the fluorescence probe pyrene
Author: Yan, Mingyan1,2; Li, Bafang1; Zhao, Xue1
Source: FOOD CHEMISTRY
ISSN: 0308-8146
Issued Date: 2010-10-15
Volume: 122, Issue:4, Pages:1333-1337
Keyword: Collagen ; Pyrene ; Aggregation ; Walleye pollock ; Fish skin
Subject: Chemistry, Applied; Food Science & Technology; Nutrition & Dietetics
Rank: [Yan, Mingyan; Li, Bafang; Zhao, Xue] Ocean Univ China, Coll Food Sci & Technol, Qingdao 266003, Shandong, Peoples R China; [Yan, Mingyan] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
Corresponding Author: Li, BF, Ocean Univ China, Coll Food Sci & Technol, 5 Yushan Rd, Qingdao 266003, Shandong, Peoples R China
Department: 生物资源实验室 
Abstract: The aim of this paper was to investigate the critical aggregation concentration and aggregation number of acid-soluble collagen from walleye pollock (Theragra chalcogramma) skin using the fluorescence probe pyrene. Results showed that pyrene was fit for studying the aggregation behaviour of collagen in sodium phosphate buffer at pH 7.2. The plots of the pyrene l(1)/l(3) ratio, as a function of the logarithm of total collagen concentration, revealed a typical sigmoidal decrease, the critical aggregation concentration (CAC) from which was determined to be at 0.48 mg/ml. The subsequent transient fluorescence decay study indicated that the aggregation number of collagen was not constant, but varied with different concentrations of collagen. The structure of the aggregates tended to be stable, when the collagen concentration exceeded 1.2 mg/ml. (C) 2010 Elsevier Ltd. All rights reserved.
English Abstract: The aim of this paper was to investigate the critical aggregation concentration and aggregation number of acid-soluble collagen from walleye pollock (Theragra chalcogramma) skin using the fluorescence probe pyrene. Results showed that pyrene was fit for studying the aggregation behaviour of collagen in sodium phosphate buffer at pH 7.2. The plots of the pyrene l(1)/l(3) ratio, as a function of the logarithm of total collagen concentration, revealed a typical sigmoidal decrease, the critical aggregation concentration (CAC) from which was determined to be at 0.48 mg/ml. The subsequent transient fluorescence decay study indicated that the aggregation number of collagen was not constant, but varied with different concentrations of collagen. The structure of the aggregates tended to be stable, when the collagen concentration exceeded 1.2 mg/ml. (C) 2010 Elsevier Ltd. All rights reserved.
WOS Subject Extended: Chemistry ; Food Science & Technology ; Nutrition & Dietetics
WOS Keyword Plus: CRITICAL MICELLE CONCENTRATION ; AQUEOUS-SOLUTION ; SURFACTANT
DOC Type: Article
Indexed Type: SCI
Related URLs: 查看原文
Language: 英语
WOS ID: WOS:000278582400062
Citation statistics:
Content Type: 期刊论文
URI: http://ir.yic.ac.cn/handle/133337/3752
Appears in Collections:海岸带生物学与生物资源利用所重点实验室_期刊论文

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description.institution: 1.Ocean Univ China, Coll Food Sci & Technol, Qingdao 266003, Shandong, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China

Recommended Citation:
Yan, Mingyan,Li, Bafang,Zhao, Xue. Determination of critical aggregation concentration and aggregation number of acid-soluble collagen from walleye pollock (Theragra chalcogramma) skin using the fluorescence probe pyrene[J]. FOOD CHEMISTRY,2010,122(4):1333-1337.
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