Article(id=1322983290466087302, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1322983275433701633, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1235318400000, receivedDateStr=2009-02-23, revisedDate=1239033600000, revisedDateStr=2009-04-07, acceptedDate=null, acceptedDateStr=null, onlineDate=1793353396287, onlineDateStr=2026-10-30, pubDate=1271260800000, pubDateStr=2010-04-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793353396287, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793353396287, creator=13701087609, updateTime=1793353396287, updator=13701087609, issue=Issue{id=1322983275433701633, tenantId=1146029695717560320, journalId=1255847867265597444, year='2010', volume='24', issue='2', pageStart='81', pageEnd='160', issueExtLink='null', onlineDate='null', pubDate='1271260800000', pubDateStr='2010-04-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793353392703, creator='13701087609', updateTime=1793353392703, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=129, endPage=135, ext={EN=ArticleExt(id=1322983290738717063, articleId=1322983290466087302, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=The Effect of Dynamic High Pressure Microfluidizationon the Activity of Papain, columnId=0, journalTitle=Chinese Journal of High Pressure Physics, columnName=, runingTitle=null, highlight=null, articleAbstract=

The effect of dynamic high pressure microfluidization (DHPM) on the activity of papain had been investigated, and the molecular conformation changes of papain had been detected by fluorescence spectra. The results showed that after DHPM (120~180 MPa) treatment, the enzyme activity decreased in different degrees. The papain activity reduced to 90.04% after 180 MPa treatment. With the increasing of treatment pressure, the fluorescence emission peaks of papain, Tyr and Trp residues gradually red shifted from 334, 285 and 277.5 nm for untreated sample to 335.5, 285.5 and 278.5 nm for 140 MPa treated sample, and then returned to 334, 285 and 278 nm for 180 MPa treated sample, respectively. After 24 h placing at 0~4 ℃, papain activity further decreased and the fluorescence intensity of papain and Tyr residue showed oscillate (down, up and down), which indicated that DHPM treatment (120~180 MPa) changed the molecular conformation of papain visibly with low stability of the new formed conformation.

, authors=Wei LIU, Ye-Jun ZHONG, Cheng-Mei LIU, Ming-Yong XIE, Bin GUAN, Man YIN, Qian WANG, Ting-Ting CHEN, authorsList=Wei LIU, Ye-Jun ZHONG, Cheng-Mei LIU, Ming-Yong XIE, Bin GUAN, Man YIN, Qian WANG, Ting-Ting CHEN, authorCompany=null, correspAuthors=Cheng-Mei LIU, authorNote=

LIU Wei (1972—), male, doctoral candidate, associate professor, major in food engineering technology. E-mail:

, correspAuthorsNote=
LIU Cheng-Mei (1963—), male, doctor, professor, doctoral supervisor, major in food science. E-mail:
, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=cGhw1wf8pQ3yZKo8SSKWAw==, magXml=AWFJwzoPhqMN7iJvYCKfXg==, pdfUrl=null, pdf=BRzY0QcRaY/s7pLtTMq1gQ==, pdfFileSize=436139, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=4ztXlGhnCKK446N9R8eSiw==, mapNumber=null, fund=null), CN=ArticleExt(id=1322983290864546184, articleId=1322983290466087302, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=动态高压微射流技术对木瓜蛋白酶活性的影响, columnId=null, journalTitle=高压物理学报, columnName=null, runingTitle=null, highlight=null, articleAbstract=

研究了动态高压微射流技术对木瓜蛋白酶活性的影响,并以荧光光谱为检测手段对木瓜蛋白酶的分子构象进行表征。结果显示,动态高压微射流处理(120~180 MPa)后,木瓜蛋白酶酶活降低。经180 MPa处理1次,木瓜蛋白酶相对酶活降至90.04%。随着处理压力的增加,木瓜蛋白酶分子、酪氨酸残基、色氨酸残基的荧光发射峰位置分别从对照组的334、285、277.5 nm红移至140 MPa处理组的335.5、285.5、278.5 nm,然后回移至180 MPa处理组的334、285、278 nm。在0~4 ℃放置24 h后,酶活进一步降低,木瓜蛋白酶和酪氨酸残基的荧光强度出现波动(降低、上升然后再降低),表明动态高压微射流处理(120~180 MPa)改变木瓜蛋白酶分子构象的效果较为明显,形成的新构象稳定性低。

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动态高压微射流技术对木瓜蛋白酶活性的影响
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刘伟 , 钟业俊 , 刘成梅 , 谢明勇 , 官斌 , 尹曼 , 王倩 , 陈婷婷
高压物理学报 | 2010,24(2): 129-135
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高压物理学报 2010 , 24 (2) : 129 -135
动态高压微射流技术对木瓜蛋白酶活性的影响
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刘伟 , 钟业俊, 刘成梅 , 谢明勇, 官斌, 尹曼, 王倩, 陈婷婷
作者信息
  • 南昌大学食品科学与技术国家重点实验室,江西 南昌 330047
通讯作者:
刘成梅
The Effect of Dynamic High Pressure Microfluidizationon the Activity of Papain
Wei LIU , Ye-Jun ZHONG, Cheng-Mei LIU , Ming-Yong XIE, Bin GUAN, Man YIN, Qian WANG, Ting-Ting CHEN
Affiliations
  • State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
  • Corresponding Author:
    LIU Cheng-Mei (1963—), male, doctor, professor, doctoral supervisor, major in food science. E-mail:

    LIU Wei (1972—), male, doctoral candidate, associate professor, major in food engineering technology. E-mail:

出版时间: 2010-04-15
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研究了动态高压微射流技术对木瓜蛋白酶活性的影响,并以荧光光谱为检测手段对木瓜蛋白酶的分子构象进行表征。结果显示,动态高压微射流处理(120~180 MPa)后,木瓜蛋白酶酶活降低。经180 MPa处理1次,木瓜蛋白酶相对酶活降至90.04%。随着处理压力的增加,木瓜蛋白酶分子、酪氨酸残基、色氨酸残基的荧光发射峰位置分别从对照组的334、285、277.5 nm红移至140 MPa处理组的335.5、285.5、278.5 nm,然后回移至180 MPa处理组的334、285、278 nm。在0~4 ℃放置24 h后,酶活进一步降低,木瓜蛋白酶和酪氨酸残基的荧光强度出现波动(降低、上升然后再降低),表明动态高压微射流处理(120~180 MPa)改变木瓜蛋白酶分子构象的效果较为明显,形成的新构象稳定性低。

动态高压微射流  /  荧光光谱  /  木瓜蛋白酶  /  分子构象

The effect of dynamic high pressure microfluidization (DHPM) on the activity of papain had been investigated, and the molecular conformation changes of papain had been detected by fluorescence spectra. The results showed that after DHPM (120~180 MPa) treatment, the enzyme activity decreased in different degrees. The papain activity reduced to 90.04% after 180 MPa treatment. With the increasing of treatment pressure, the fluorescence emission peaks of papain, Tyr and Trp residues gradually red shifted from 334, 285 and 277.5 nm for untreated sample to 335.5, 285.5 and 278.5 nm for 140 MPa treated sample, and then returned to 334, 285 and 278 nm for 180 MPa treated sample, respectively. After 24 h placing at 0~4 ℃, papain activity further decreased and the fluorescence intensity of papain and Tyr residue showed oscillate (down, up and down), which indicated that DHPM treatment (120~180 MPa) changed the molecular conformation of papain visibly with low stability of the new formed conformation.

dynamic high pressure microfluidization (DHPM)  /  fluorescence spectra  /  papain  /  molecular conformation
刘伟, 钟业俊, 刘成梅, 谢明勇, 官斌, 尹曼, 王倩, 陈婷婷. 动态高压微射流技术对木瓜蛋白酶活性的影响. 高压物理学报, 2010 , 24 (2) : 129 -135 .
Wei LIU, Ye-Jun ZHONG, Cheng-Mei LIU, Ming-Yong XIE, Bin GUAN, Man YIN, Qian WANG, Ting-Ting CHEN. The Effect of Dynamic High Pressure Microfluidizationon the Activity of Papain[J]. Chinese Journal of High Pressure Physics, 2010 , 24 (2) : 129 -135 .
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2010年第24卷第2期
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  • 接收时间:2009-02-23
  • 首发时间:2026-10-30
  • 出版时间:2010-04-15
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  • 收稿日期:2009-02-23
  • 修回日期:2009-04-07
基金
National High Technology Research and Development Program (863 Program)(2007AA100403)
Research Program of Sate Key Laboratory of Food Science and Technology, Nanchang University(SKLF-MB-200808)
作者信息
    南昌大学食品科学与技术国家重点实验室,江西 南昌 330047

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