Megazyme/葡萄糖测定试剂/每个试剂盒/4瓶R-GLC4/1000分析
商品编号：
R-GLC4
品牌：
Megazyme INC
市场价：
¥6504.00
美元价：
3902.40
产品分类：
其它检测试剂盒
公司分类：
Other_kits
联系Q Q：
3392242852
电话号码：
4000-520-616
电子邮箱：
info@ebiomall.com
商品介绍
HighpurityGlucoseDeterminationReagent–4vials,forthemeasurementofglucoseinthepresenceofstarchorα-orβ-D-gluco-oligosaccharides.
Characterisationofthesubstituentdistributioninhydroxypropylatedpotatoamylopectinstarch.
Richardson,S.,Nilsson,G.S.,Bergquist,K.E.,Gorton,L.&Mischnick,P.(2000).CarbohydrateResearch,328(3),365-373.
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Thedistributionofsubstituentsinhydroxypropylatedpotatoamylopectinstarch(amylosedeficient)modifiedinaslurryofgranularstarch(HPPAPg)orinapolymer‘solution’ofdissolvedstarch(HPPAPs),wasinvestigated.Themolarsubstitution(MS)wasdeterminedbythreedifferentmethods:protonnuclearmagneticresonance(1HNMR)spectroscopy,gas-liquidchromatography(GLC)withmassspectrometry,andacolourimetricmethod.TheMSvaluesobtainedby1HNMRspectroscopywerehigherthanthoseobtainedbyGLC–massspectrometryanalysisandcolourimetry.Therelativeratioof2-,3-,and6-substitution,aswellasun-,mono-,anddisubstitutionintheanhydroglucoseunit(AGU)weredeterminedbyGLC–massspectrometryanalysis.ResultsobtainedshowednosignificantdifferenceinmolardistributionofhydroxypropylgroupsintheAGUbetweenthetwoderivatives.Foranalysisofthedistributionpatternalongthepolymerchain,thestarchderivativeswerehydrolysedbyenzymeswithdifferentselectivities.DebranchingofthepolymersindicatedthatmoresubstituentswerelocatedinclosevicinitytobranchingpointsinHPPAPgthaninHPPAPs.Simultaneousα-amylaseandamyloglucosidasehydrolysisofHPPAPgliberatedmoreunsubstitutedglucoseunitsthanthehydrolysisofHPPAPs,indicatingamoreheterogeneousdistributionofsubstituentsinHPPAPg.
Influenceofenvironmentonseedsolublecarbohydratesinselectedlentilcultivars.
Tahir,M.,Vandenberg,A.&Chibbar,R.N.(2011).JournalofFoodCompositionandAnalysis,24(4),596-602.
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Highconcentrationsofraffinose-familyoligosaccharides(RFOs)inlentilscausestomachdiscomfortandreducelentilqualityforhumanconsumption.Todevelopstrategiesforlentilqualityimprovement,weinvestigatedvariABIlity,heritabilityandeffectsofenvironmentalconditionsonthecontentandcompositionofsolublecarbohydratesinlentilseeds.Analysesofvarianceshowedthatcultivarandenvironmentandtheirinteractionhadsignificanteffectsonthesugarcontentinlentilseeds.Glucoseandsucrosecontentsoflentilcultivarsrangedfrom0.02to0.06gand1.22–1.67g100g-1lentilmeal,respectively.TotalRFOcontentoflentilcultivarsrangedfrom4.5to5.5mmol
100g-1lentilseedmeal.Inalllentilcultivars,RFOcontentwaspositivelycorrelatedwithglucoseandsucrosecontents.AnalysisofRFOprofilesbyhighperformancesizeexclusionchromatography(HP-SEC)showedthatstachyosewasthemajorRFOinalllentilcultivarsfollowedbyraffinoseandverbascose,respectively.ThebroadsenseheritabilityofsucroseandRFOestimatedfromtheanalysesofvariancecomponentswas0.89and0.85,respectively.LentilseedRFOcontentisahighlyheritabletrait,thusmakingitamenabletogeneticimprovementtomeetconsumerpreferences.
100g-1lentilseedmeal.Inalllentilcultivars,RFOcontentwaspositivelycorrelatedwithglucoseandsucrosecontents.AnalysisofRFOprofilesbyhighperformancesizeexclusionchromatography(HP-SEC)showedthatstachyosewasthemajorRFOinalllentilcultivarsfollowedbyraffinoseandverbascose,respectively.ThebroadsenseheritabilityofsucroseandRFOestimatedfromtheanalysesofvariancecomponentswas0.89and0.85,respectively.LentilseedRFOcontentisahighlyheritabletrait,thusmakingitamenabletogeneticimprovementtomeetconsumerpreferences.
Grainsorghummuffinreducesglucoseandinsulinresponsesinmen.
Poquette,N.M.,Gu,X.&Lee,S.O.(2014).Food&Function,5(5),894-899.
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Diabetesandobesityhavesparkedinterestinidentifyinghealthy,dietarycarbohydratesasfunctionalingredientsforcontrollingbloodglucoseandinsulinlevels.GrainsorghumhasbeenknowntobeaslowlydigestIBLecereal;however,researchislimitedonitshealtheffectsinhumans.Theobjectivesofthisstudyweretomeasurethecontentsoffunctionalstarchfractions,SDS(slowly-digestiblestarch)andRS(resistantstarch),andtoinvestigatetheeffectsofgrainsorghumonpostprandialplasmaglucoseandinsulinlevelsin10healthymen.Awhole-wheatflourmuffin(control)wascomparedwiththegrainsorghummuffinwithbothmuffinscontaining50goftotalstarch.Usingarandomized-crossoverdesign,malesubjectsconsumedtreatmentswithinaone-weekwashoutperiod,andglucoseandinsulinlevelswereobservedat15minutesbeforeand0,15,30,45,60,75,90,120,180minutesafterconsumption.Themeanglucoseresponsesreducedafterconsuminggrainsorghum,particularlyat45–120minuteintervals,andmeaninsulinresponsesreducedat15–90minuteintervalscomparedtocontrol(P<0.05).=""the=""mean=""incremental=""area=""under=""the=""curve=""(iauc)=""was=""significantly=""lowered=""for=""plasma=""glucose=""responses=""about=""an=""average=""of=""35%=""from=""3863=""±=""443=""to=""2871=""±=""163=""mg=""(~=""3=""h)="">-1(P<0.05).=""insulin=""responses=""also=""reduced=""significantly=""from=""3029=""±=""965=""µu=""(~=""3=""h)="">-1forwheatto1357±204withsorghum(P<0.05).=""results=""suggest=""that=""grain=""sorghum=""is=""a=""good=""functional=""ingredient=""to=""assist=""in=""managing=""glucose=""and=""insulin=""levels=""in=""healthy=""individuals.="">
Enzyme-aidedinvestigationofthesubstituentdistributionincationicpotatoamylopectinstarch.
Richardson,S.,Nilsson,G.,Cohen,A.,Momcilovic,D.,Brinkmalm,G.&Gorton,L.(2003).AnalyticalChemistry,75(23),6499-6508.
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Thedistributionofsubstituentsalongthepolymerchainincationicpotatoamylopectinstarch,modifiedinsolution,granularslurry,ordrystate,wasinvestigated.Thestarchderivativesweresuccessivelyhydrolyzedbydifferentenzymes,followedbycharacterizationofthehydrolysisproductsobtainedbymeansofelectrospraymassspectrometry(ESI-MS)andmatrix-assistedlaserdesorption/ionizationmassspectrometry(MALDI-MS).ESI-MSandMALDI-MSwereprovedtobeappropriatetechniquesforidentificationofthesubstitutedhydrolysisproducts,forwhichtherearenostandardcompoundsavailable.Nohighlysubstitutedoligomerswerefoundinthehydrolysates,whichwastakenasanindicationofamoreorlesshomogeneousdistributionofcationicgroupsintheamylopectinmolecules.FurThermore,fromtheresultsobtaineditwassuggestedthattheenzymescleaveglucosidiclinkagesonlybetweenunsubstitutedglucoseunitsand,preferentially,linkagesinsequencescontainingmorethantwoadjacentunsubstitutedunits.Thedeterminationoftheamountofunsubstitutedglucoseproducedfromeverysuccessivehydrolysissteprevealedslightdifferencesbetweenthedifferentstarchsampleswithrespecttothehomogeneityofthesubstitutionpattern.Amongthethreesamplesunderinvestigation,starchcationizedinsolutionwasfoundtohavethemostanddry-cationizedstarchtheleasthomogeneousdistributionofsubstituents.
Nutritionalandrheologicalcharacterizationofspraydriedsweetpotatopowder.
Grabowski,J.A.,Truong,V.D.&Daubert,C.R.(2008).LWT-FoodScienceandTechnology,41(2),206-216.
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Spraydryingfeasibilityofsweetpotatopureeisenhancedusingalpha-amylasetreatmenttoreducepureeviscosityandmaltodextrin(MD)additiontofacilitatedrying.TobetterdeterminepotentialapplicationsofpowdersproducedwithvariouslevelsofamylaseandMD,nutrientcompositionandrheologicalpropertiesofthehydratedspraydriedsweetpotatopowderswereexaminedandcomparedwithsweetpotatopuree.Proximatecomposition,beta-carotene,vitaminC,andmineralanalyseswereperformed.Steadyshearrheologyofreconstitutedpowdersolutionswasalsoevaluatedatdifferenttemperaturesandshearrates.Spraydryingsignificantlyreducedtheβ-caroteneandascorbicacidcontents.Additionally,theall-transformofbeta-carotenewasfurthertransformedtothecis-isomersduringdehydration.Theviscosityofthereconstitutedsolutionswasmuchlowerthanthatofthepureeatthesamesolidconcentration.Rheologically,thereconstitutedsweetpotatoslurriesbehavedsimilarlytopregelatinizedstarchsolutions.Thus,spraydriedsweetpotatopowdershaveapotentialtoenhancefoodsystemsasathickenerdespitetheneedforincreasednutrientretention.
Effectofalkalitreatmentonstructureandfunctionofpeastarchgranules.
Wang,S.&Copeland,L.(2012).FoodChemistry,135(3),1635-1642.
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Theeffectofalkalinetreatmentonthestructuralandfunctionalpropertiesofpeastarchgranuleswasstudiedusingarangeofcharacterizationmethodsincludingamylosecontent,scanningelectronmicroscopy(SEM),X-raydiffraction(XRD),13Cnuclearmagneticresonance(NMR),swellingpower,differentialscanningcalorimetry(DSC),theRapidViscoAnalyser(RVA)andinvitrodigestibility.Theamylosecontentdecreasedbyabout20–25%after15daysofalkalinetreatmentandthereweresmalldecreasesinrelativecrystallinityanddoublehelixcontent.Deformationswereobservedonthesurfaceofalkali-treatedgranules,andtherewasevidenceofadhesionbetweensomeofthegranules.Therewasa25–30%reductioninpeakandfinalRVApastingviscosities,butonlyasmallreductioninswellingpower.Theendothermictransitionofalkali-treatedstarchwasbroadenedwithashiftoftheendothermicpeaktohighertemperature.However,theendothermicenthalpyremainedlargelyunaffected.Alkali-treatmentgreatlyincreasedtherateofinvitroenzymaticbreakdownofthepeastarch.Moreprolongedalkalinetreatmentfor30daysdidnotcausefurthersignificantchangestothestructuralandfunctionalpropertiesofthestarchgranules.Theeffectsofalkalionstructureandfunctionofpeastarchareexplainedonthebasisoflimitedgelatinizationofthegranules.
品牌介绍
Megazyme品牌产品简介
来源：作者：人气：2149发表时间：2016-05-19 10:59:00【大 中 小】
Megazyme是一家全球性公司，专注于开发和提供用于饮料、谷物、乳制品、食品、饲料、发酵、生物燃料和葡萄酒产业用的分析试剂、酶和检测试剂盒。Megazyme的许多检测试剂盒产品已经为众多官方科学协会（包括AOAC, AACC , RACI, EBC和ICC等），经过严格的审核，批准认证为官方标准方法，确保以准确、可靠、定量和易于使用的测试方法，满足客户的质量诉求。
Megazyme的主要产品线包括：
◆ 检测试剂盒
◆ 酶
◆ 酶底物
◆ 碳水化合物
◆ 化学品/仪器
官网地址：http://www.megazyme.com
检测试剂盒特色产品：
货号
中文品名
用途
K-ACETAF
乙酸[AF法]检测试剂盒
酶法定量分析乙酸最广泛使用的方法
K-ACHDF
可吸收糖/膳食纤维检测试剂盒
酒精沉淀法测定膳食纤维
K-AMIAR
氨快速检测试剂盒
用于包括葡萄汁、葡萄酒以及其它食品饮料样品中氨含量的快速检测分析。
K-AMYL
直链淀粉/支链淀粉检测试剂盒
谷物淀粉和而粉中直链淀粉/支链淀粉比例和含量检测
K-ARAB
阿拉伯聚糖检测试剂盒
果汁浓缩液中阿拉伯聚糖的检测
K-ASNAM
L-天冬酰胺/L-谷氨酰胺和氨快速检测试剂盒
用于食品工业中丙烯酰胺前体、细胞培养基、以及上清液组分中、L-天冬酰胺，谷氨酰胺和氨的检测分析
K-ASPTM
阿斯巴甜检测试剂盒
专业用于测定饮料和食品中阿斯巴甜含量，操作简单
K-BETA3
β-淀粉酶检测试剂盒
适用于麦芽粉中β-淀粉酶的测定
K-BGLU
混合键β-葡聚糖检测试剂盒
测定谷物、荞麦粉、麦汁、啤酒及其它食品中混合键β-葡聚糖(1,3:1,4-β-D-葡聚糖)的含量
K-CERA
α-淀粉酶检测试剂盒
谷物和发酵液（真菌和细菌）中α-淀粉酶的分析测定
K-CITR
柠檬酸检测试剂盒
快速、可靠地检测食品、饮料和其它物料中柠檬酸（柠檬酸盐）含量
K-DLATE
乳酸快速检测试剂盒
快速、特异性检测饮料、肉类、奶制品和其它食品中L-乳酸和D-乳酸(乳酸盐）含量
K-EBHLG
酵母β-葡聚糖酶检测试剂盒
用于测量和分析酵母中1,3:1,6?-β-葡聚糖，也可以检测1,3-葡聚糖
K-ETSULPH
总亚硫酸检测试剂盒
测定葡萄酒、饮料、食品和其他物料中总亚硫酸含量（按二氧化硫计）的一种简单，高效，可靠的酶法检测方法
K-FRGLMQ
D-果糖/D-葡萄糖[MegaQuant法]检测试剂盒
适用于使用megaquant?色度计（505nm下）测定葡萄、葡萄汁和葡萄酒中D-果糖和D-葡萄糖的含量。
K-FRUC
果聚糖检测试剂盒
含有淀粉、蔗糖和其他糖类的植物提取物和食品中果聚糖的含量测定。
K-FRUGL
D-果糖/D-葡萄糖检测试剂盒
对植物和食品中果糖或葡萄糖含量的酶法紫外分光测定。
K-GALM
半乳甘露聚糖检测试剂盒
食品和植物产品中半乳甘露聚糖的含量检测
K-GLUC
D-葡萄糖[GOPOD]检测试剂盒
谷物提取物中D-葡萄糖的含量测定，可以和其它Megazyme检测试剂盒联合使用。
K-GLUHK
D-葡萄糖[HK]检测试剂盒
植物和食品中D-葡萄糖的含量测定，可以和其它Megazyme检测试剂盒联合使用。
K-GLUM
葡甘聚糖检测试剂盒
植物和食品中葡甘聚糖的含量测定。
K-INTDF
总膳食纤维检测试剂盒
总膳食纤维特定检测和分析
K-LACGAR
乳糖/D-半乳糖快速检测试剂盒
用于快速检测食品和植物产品中乳糖、D-半乳糖和L-阿拉伯糖
K-LACSU
乳糖/蔗糖/D-葡萄糖检测试剂盒
混合面粉和其它物料中蔗糖、乳糖和D-葡萄糖的测定
K-LACTUL
乳果糖检测试剂盒
特异性、快速和灵敏测量奶基样品中乳果糖含量
K-MANGL
D-甘露糖/D-果糖/D-葡萄糖检测试剂盒
适合测定植物产品和多糖酸性水解产物中D-甘露糖含量
K-MASUG
麦芽糖/蔗糖/D-葡萄糖检测试剂盒
在植物和食品中麦芽糖，蔗糖和葡萄糖的含量检测
K-PECID
胶质识别检测试剂盒
食品配料中果胶的鉴别
K-PHYT
植酸(总磷)检测试剂盒
食品和饲料样品植酸/总磷含量测量的简便方法。不需要通过阴离子交换色谱对植酸纯化，适合于大量样本分析
K-PYRUV
丙酮酸检测试剂盒
在啤酒、葡萄酒、果汁、食品和体液中丙酮酸分析
K-RAFGA
棉子糖/D-半乳糖检测试剂盒
快速测量植物材料和食品中棉子糖和半乳糖含量
K-RAFGL
棉子糖/蔗糖/D-半乳糖检测试剂盒
分析种子和种子粉中D-葡萄糖、蔗糖、棉子糖、水苏糖和毛蕊花糖含量。通过将棉子糖、水苏糖和毛蕊花糖酶解D-葡萄糖、D-果糖和半乳糖，从而测定葡萄糖含量来确定
K-SDAM
淀粉损伤检测试剂盒
谷物面粉中淀粉损伤的检测和分析
K-SUCGL
蔗糖/D-葡萄糖检测试剂盒
饮料、果汁、蜂蜜和食品中蔗糖和葡萄糖的分析
K-SUFRG
蔗糖/D-果糖/D-葡萄糖检测试剂盒
适用于植物和食品中蔗糖、D-葡萄糖和D-果糖的测定
K-TDFR
总膳食纤维检测试剂盒
总膳食纤维检测
K-TREH
海藻糖检测试剂盒
快速、可靠地检测食品、饮料和其它物料中海藻糖含量
K-URAMR
尿素/氨快速检测试剂盒
适用于水、饮料、乳制品和食品中尿素和氨的快速测定
K-URONIC
D-葡萄糖醛酸/D-半乳糖醛酸检测试剂盒
简单、可靠、精确测定植物提取物、培养基/上清液以及其它物料中六元糖醛酸含量（D-葡萄糖醛酸和D-半乳糖醛酸）
K-XYLOSE
D-木糖检测试剂盒
简单、可靠、精确测定植物提取物、培养基/上清液以及其它物料中D-木糖含量
K-YBGL
Beta葡聚糖[酵母和蘑菇]检测试剂盒
检测酵母和蘑菇制品中1,3:1,6-beta-葡聚糖和α-葡聚糖含量
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