Article(id=1320880487686582455, tenantId=1146029695717560320, journalId=1260987677001138203, issueId=1320880262012056083, articleNumber=null, orderNo=null, doi=10.13386/j.issn1002-0306.2025070361, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1753804800000, receivedDateStr=2025-07-30, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1792852049036, onlineDateStr=2026-10-24, pubDate=1789401600000, pubDateStr=2026-09-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792852049036, onlineIssueDateStr=2026-10-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792852049036, creator=13701087609, updateTime=1792852049036, updator=13701087609, issue=Issue{id=1320880262012056083, tenantId=1146029695717560320, journalId=1260987677001138203, year='2026', volume='47', issue='18', pageStart='1', pageEnd='613', issueExtLink='null', onlineDate='null', pubDate='1789401600000', pubDateStr='2026-09-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1792851995232, creator='13701087609', updateTime=1792921655980, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1321172440479290195, tenantId=1146029695717560320, journalId=1260987677001138203, issueId=1320880262012056083, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1321172440479290196, tenantId=1146029695717560320, journalId=1260987677001138203, issueId=1320880262012056083, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=163, endPage=171, ext={EN=ArticleExt(id=1320880487955017913, articleId=1320880487686582455, tenantId=1146029695717560320, journalId=1260987677001138203, language=EN, title=Enzymatic Properties of
γ-Glutamyltranspeptidase from
Bacillus licheniformis and Its Application in the Synthesis of
γ-Glutamyl-S-allyl-L-cysteine, columnId=1320880487858548920, journalTitle=Science and Technology of Food Industry, columnName=Food Microbiology and Biomanufacturing, runingTitle=null, highlight=null, articleAbstract=
To achieve the enzymatic synthesis of γ-glutamyl-S-allyl-L-cysteine (GSAC), γ-glutamyltranspeptidase from Bacillus licheniformis (BlGGT) was obtained through fermentation followed by ammonium sulfate precipitation, and its enzymatic properties were characterized. Using L-glutamine (L-Gln) as the γ-glutamyl donor and S-allyl-L-cysteine (SAC) as the acceptor, the reaction conditions for BlGGT-catalyzed synthesis of GSAC were optimized via single-factor and orthogonal experiments. The results showed that the optimal temperature for both transpeptidation and hydrolytic activities of BlGGT was 55 ℃. The optimal pH for the transpeptidation reaction was 9.0, whereas that for the hydrolysis reaction was 7.0. The metal ions Zn2+ significantly enhanced both the transpeptidation and hydrolytic activities of BlGGT (P<0.05), Mg2+ and Ca2+ also significantly promoted transpeptidation activity (P<0.05), while Cu2+, Fe3+ and Mn2+ exhibited significant inhibitory effects on both activities (P<0.05). The optimal reaction conditions for GSAC synthesis were determined as follows: BlGGT concentration of 1 mg/mL, molar ratio of L-Gln to SAC of 1:3, reaction temperature of 60 ℃, pH10.0, and reaction time of 6 h. Under these optimized conditions, the conversion yield of GSAC reached 19.10%±0.11%. The present study elucidated the enzymatic characteristics of BlGGT and established an efficient enzymatic process for GSAC synthesis, providing a theoretical foundation and technical support for the high-yield production of GSAC.
, authors=Guanying SHI
1, Wenyu GAO
2, Le ZHANG
1, Pengfei JIANG
1, Lili ZHAO
1, Yuting SHI
1, Zuobing XIAO
1, 3, Zhaogai WANG
1, *, authorsList=Guanying SHI, Wenyu GAO, Le ZHANG, Pengfei JIANG, Lili ZHAO, Yuting SHI, Zuobing XIAO, Zhaogai WANG, authorCompany=null, correspAuthors=Zhaogai WANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright © 2026 Science and Technology of Food Industry. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1320880490425462993, articleId=1320880487686582455, tenantId=1146029695717560320, journalId=1260987677001138203, language=CN, title=地衣芽孢杆菌
γ-谷氨酰转肽酶的性质及其在
γ-谷氨酰-S-烯丙基-L-半胱氨酸合成中的应用, columnId=1320880488030515386, journalTitle=食品工业科技, columnName=食品微生物与生物制造, runingTitle=null, highlight=null, articleAbstract=
为实现γ-谷氨酰-S-烯丙基-L-半胱氨酸(γ-Glutamyl-S-allyl-L-cysteine,GSAC)的酶法合成,本研究通过地衣芽孢杆菌(Bacillus licheniformis)发酵、硫酸铵沉淀初步纯化得到γ-谷氨酰转肽酶(BlGGT),并对其酶学性质进行了表征。接着以L-谷氨酰胺(L-Gln)为供体、S-烯丙基-L-半胱氨酸(S-allyl-L-cysteine,SAC)为受体,通过单因素及正交试验对BlGGT催化合成GSAC的工艺进行了优化。结果表明,BlGGT的转肽和水解活性最适温度均为55 ℃,转肽反应最适pH为9.0,水解反应最适pH为7.0,金属离子Zn2+对BlGGT的转肽和水解活性均有显著的增强作用(P<0.05),Mg2+和Ca2+也可显著增强BlGGT的转肽活性(P<0.05),而Cu2+、Fe3+和Mn2+则对BlGGT的转肽和水解活性具有明显抑制作用。确定催化合成GSAC的最佳反应条件为:酶浓度1 mg/mL,供体L-Gln与受体SAC摩尔比1:3,反应温度60 ℃,反应pH为10.0,反应时间6 h。在该优化条件下,GSAC的转化率达到19.10%±0.11%。本研究明确了BlGGT的酶学特性,并建立了GSAC的生物酶法合成工艺,为GSAC的高效合成提供了理论依据和技术支撑。
, authors=史冠莹
1, 高文雨
2, 张乐
1, 蒋鹏飞
1, 赵丽丽
1, 史宇婷
1, 肖作兵
1, 3, 王赵改
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, correspAuthorsNote=
, copyrightStatement=版权所有 © 2026《食品工业科技》编辑部, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=IR3NjdmMrNedvvqRo3U++Q==, magXml=0ttqrSAwidi5PKohbSTSwQ==, pdfUrl=null, pdf=32n5tggbhko5a2KvZVK6mg==, pdfFileSize=1787813, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=X7csj6w1WSn4tSulQzThEg==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=YQcLvDV+b33YAMtmJ78dcA==, mapNumber=null, fund=null)}, authors=[Author(id=1320880491486621917, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=250487127@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1320880491578896608, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, authorId=1320880491486621917, language=EN, stringName=Guanying SHI, firstName=Guanying, middleName=null, lastName=SHI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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Ammonium sulphate precipitation curve, figureFileSmall=ja35Xkq22HYHrz+npSaCcA==, figureFileBig=X7csj6w1WSn4tSulQzThEg==, tableContent=null), ArticleFig(id=1320880496704336149, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=图1, caption=
硫酸铵沉淀曲线, figureFileSmall=ja35Xkq22HYHrz+npSaCcA==, figureFileBig=X7csj6w1WSn4tSulQzThEg==, tableContent=null), ArticleFig(id=1320880497102795030, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Fig.2, caption=
Effect of reaction temperature on enzyme activity, figureFileSmall=bHXL/GYe2sFKlsgMt8r5xw==, figureFileBig=Gtt4ldBxJZIuurc1eyjXWQ==, tableContent=null), ArticleFig(id=1320880497362841879, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=图2, caption=
反应温度对酶活的影响注:不同小写字母表示样品组间差异显著(P<0.05);图3~图5、图7~图11。
, figureFileSmall=bHXL/GYe2sFKlsgMt8r5xw==, figureFileBig=Gtt4ldBxJZIuurc1eyjXWQ==, tableContent=null), ArticleFig(id=1320880497501253912, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Fig.3, caption=
Effect of reaction pH on enzyme activity, figureFileSmall=YOmJN3LAPwYA64FOFEl94w==, figureFileBig=fidnr8mUai/f5W5qmO6vbQ==, tableContent=null), ArticleFig(id=1320880497627083033, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=图3, caption=
反应pH对酶活的影响, figureFileSmall=YOmJN3LAPwYA64FOFEl94w==, figureFileBig=fidnr8mUai/f5W5qmO6vbQ==, tableContent=null), ArticleFig(id=1320880497870352666, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Fig.4, caption=
Effect of metal ions on enzyme activity, figureFileSmall=F2Nso+TC9UFpR7WbxQoDzA==, figureFileBig=bsw76coZv3pLfcmV17QEsg==, tableContent=null), ArticleFig(id=1320880497966821659, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=图4, caption=
金属离子对酶活的影响, figureFileSmall=F2Nso+TC9UFpR7WbxQoDzA==, figureFileBig=bsw76coZv3pLfcmV17QEsg==, tableContent=null), ArticleFig(id=1320880498101039388, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Fig.5, caption=
Receptor substrate specificity of BlGGT, figureFileSmall=nSJafv7e1MiCWtcODhp3FA==, figureFileBig=rzn4Wrp7+kF7KIShjXALzA==, tableContent=null), ArticleFig(id=1320880498214285597, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=图5, caption=
BlGGT的受体底物特异性, figureFileSmall=nSJafv7e1MiCWtcODhp3FA==, figureFileBig=rzn4Wrp7+kF7KIShjXALzA==, tableContent=null), ArticleFig(id=1320880498319143198, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Fig.6, caption=
HPLC chromatogram of the the mixed standards, figureFileSmall=u+ahv8N7B8V0HELvmeFwfg==, figureFileBig=T/H+E9PPiUsUvBxpTbintw==, tableContent=null), ArticleFig(id=1320880498600161567, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=图6, caption=
混合标准溶液的高效液相色谱图, figureFileSmall=u+ahv8N7B8V0HELvmeFwfg==, figureFileBig=T/H+E9PPiUsUvBxpTbintw==, tableContent=null), ArticleFig(id=1320880498730184992, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Fig.7, caption=
Effect of BlGGT concentration on GSAC synthesis, figureFileSmall=ViQ6wfnD8BMSdGiGhqjO5Q==, figureFileBig=2NF3vMVCwbVDU+OJbld0Yw==, tableContent=null), ArticleFig(id=1320880499099283745, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=图7, caption=
酶浓度对催化合成GSAC的影响, figureFileSmall=ViQ6wfnD8BMSdGiGhqjO5Q==, figureFileBig=2NF3vMVCwbVDU+OJbld0Yw==, tableContent=null), ArticleFig(id=1320880499199947042, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Fig.8, caption=
Effect of reaction temperature on GSAC synthesis, figureFileSmall=uwiNJspqmabc3YVs7JuakA==, figureFileBig=ngXRpa7BeOkLe+DeNRadVg==, tableContent=null), ArticleFig(id=1320880499443216675, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=图8, caption=
反应温度对催化合成GSAC的影响, figureFileSmall=uwiNJspqmabc3YVs7JuakA==, figureFileBig=ngXRpa7BeOkLe+DeNRadVg==, tableContent=null), ArticleFig(id=1320880499506131236, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Fig.9, caption=
Effect of reaction pH on GSAC synthesis, figureFileSmall=bYBZqkU551HG9OCeOz92UA==, figureFileBig=XrDv7//7mFnF4WnK+tGRMw==, tableContent=null), ArticleFig(id=1320880499581628709, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=图9, caption=
反应pH对催化合成GSAC的影响, figureFileSmall=bYBZqkU551HG9OCeOz92UA==, figureFileBig=XrDv7//7mFnF4WnK+tGRMw==, tableContent=null), ArticleFig(id=1320880499657126182, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Fig.10, caption=
Effect of donor-acceptor molar ratio on GSAC synthesis, figureFileSmall=T1NtDDjgioqVaV6+75RF9Q==, figureFileBig=mGHBeGSbI5YNPwcqR/Ic3w==, tableContent=null), ArticleFig(id=1320880499912978728, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=图10, caption=
供体-受体摩尔比对催化合成GSAC的影响, figureFileSmall=T1NtDDjgioqVaV6+75RF9Q==, figureFileBig=mGHBeGSbI5YNPwcqR/Ic3w==, tableContent=null), ArticleFig(id=1320880500277883177, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Fig.11, caption=
Effect of reaction time on GSAC synthesis, figureFileSmall=1scE3sFr68yO4cMWgmWYWQ==, figureFileBig=slAvrIL/cV+E/suqAlJqzw==, tableContent=null), ArticleFig(id=1320880500378546474, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=图11, caption=
反应时间对催化合成GSAC的影响, figureFileSmall=1scE3sFr68yO4cMWgmWYWQ==, figureFileBig=slAvrIL/cV+E/suqAlJqzw==, tableContent=null), ArticleFig(id=1320880500466626859, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Table 1, caption=
Orthogonal test factors and levels
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| 水平/因素 | A供受体摩尔比 | B反应时间(h) | C反应温度(℃) |
|---|
| 1 | 1:1 | 2 | 40 |
| 2 | 1:2 | 4 | 50 |
| 3 | 1:3 | 6 | 60 |
), ArticleFig(id=1320880500777005356, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=表1, caption=
正交试验因素及水平
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| 水平/因素 | A供受体摩尔比 | B反应时间(h) | C反应温度(℃) |
|---|
| 1 | 1:1 | 2 | 40 |
| 2 | 1:2 | 4 | 50 |
| 3 | 1:3 | 6 | 60 |
), ArticleFig(id=1320880500844114221, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Table 2, caption=
Linear regression analysis
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| 标准品 | 线性范围(μg/mL) | 线性回归方程 | 决定系数R2 |
|---|
| SAC | 20.0~100.0 | y=9.8703x−11.9345 | 0.9991 |
| GSAC | 20.0~100.0 | y=12.5094x−24.9710 | 0.9996 |
), ArticleFig(id=1320880500928000302, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=表2, caption=
线性回归结果
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| 标准品 | 线性范围(μg/mL) | 线性回归方程 | 决定系数R2 |
|---|
| SAC | 20.0~100.0 | y=9.8703x−11.9345 | 0.9991 |
| GSAC | 20.0~100.0 | y=12.5094x−24.9710 | 0.9996 |
), ArticleFig(id=1320880501129326895, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Table 3, caption=
Orthogonal test results of optimization of GSAC synthesis conditions
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| 实验号 | A供受体摩尔比 | B反应时间 (h) | C反应温度 (℃) | GSAC转化率 (%) |
|---|
| 1 | 1 | 1 | 1 | 12.27 |
| 2 | 2 | 2 | 2 | 13.56 |
| 3 | 3 | 3 | 3 | 19.00 |
| 4 | 1 | 2 | 3 | 11.04 |
| 5 | 2 | 3 | 1 | 12.73 |
| 6 | 3 | 1 | 2 | 15.70 |
| 7 | 1 | 3 | 2 | 10.67 |
| 8 | 2 | 1 | 3 | 14.32 |
| 9 | 3 | 2 | 1 | 14.20 |
| 均值k1 | 11.36 | 14.13 | 13.10 | |
| 均值k2 | 13.54 | 12.93 | 13.31 | |
| 均值k3 | 16.30 | 14.14 | 14.79 | |
| 极差R | 4.94 | 1.20 | 1.69 | |
), ArticleFig(id=1320880501209018672, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=表3, caption=
GSAC合成条件优化正交试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 实验号 | A供受体摩尔比 | B反应时间 (h) | C反应温度 (℃) | GSAC转化率 (%) |
|---|
| 1 | 1 | 1 | 1 | 12.27 |
| 2 | 2 | 2 | 2 | 13.56 |
| 3 | 3 | 3 | 3 | 19.00 |
| 4 | 1 | 2 | 3 | 11.04 |
| 5 | 2 | 3 | 1 | 12.73 |
| 6 | 3 | 1 | 2 | 15.70 |
| 7 | 1 | 3 | 2 | 10.67 |
| 8 | 2 | 1 | 3 | 14.32 |
| 9 | 3 | 2 | 1 | 14.20 |
| 均值k1 | 11.36 | 14.13 | 13.10 | |
| 均值k2 | 13.54 | 12.93 | 13.31 | |
| 均值k3 | 16.30 | 14.14 | 14.79 | |
| 极差R | 4.94 | 1.20 | 1.69 | |
), ArticleFig(id=1320880501318070577, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=EN, label=Table 4, caption=
Analysis of variance
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| 因素 | 偏差平方和S | 自由度f | F比 | F临界值 | 显著性 |
|---|
| A供受体摩尔比 | 36.79 | 2.00 | 7.40 | 5.14 | 显著 |
| B反应时间 | 2.87 | 2.00 | 0.58 | 5.14 | |
| C反应温度 | 5.07 | 2.00 | 1.02 | 5.14 | |
| 误差 | 14.92 | 6.00 | | | |
), ArticleFig(id=1320880501410345266, tenantId=1146029695717560320, journalId=1260987677001138203, articleId=1320880487686582455, language=CN, label=表4, caption=
方差分析
, figureFileSmall=null, figureFileBig=null, tableContent=
| 因素 | 偏差平方和S | 自由度f | F比 | F临界值 | 显著性 |
|---|
| A供受体摩尔比 | 36.79 | 2.00 | 7.40 | 5.14 | 显著 |
| B反应时间 | 2.87 | 2.00 | 0.58 | 5.14 | |
| C反应温度 | 5.07 | 2.00 | 1.02 | 5.14 | |
| 误差 | 14.92 | 6.00 | | | |
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