[579● ]aP]aMPMe[ru力ss圧erP超臨界流体22.1 0.1(常圧)Ambient condition0100温度[ºC]Temperature [ºC]374SCW超臨界水液体Liquid固体SolidCritical 臨界点Point気体Gas1125200400600Outlook for researchLivingorganismsleveragetheiracquiredknowledgetocreateexceptionalfibersinthewater.Thereisagreatdealthatresearcherscanlearnfromfibermaterialscreatedbylivingleadtotheorganisms.Thisknowledgewillfibermaterialengineeringofthefuture.Outlook for students after graduationGraduatesareemployedasR&Dengineersbymanufacturesfollowingbusinesses:spinning;fiberproductionnon-wovenmaterialproduction;foodingredientproduction;sportsproductproduction;plasticprocessing;processing,manufacture,andsaleofnaturalpolysaccharides;andchemicalproductmanufacturing.involvedOutlook for researchOutlook for students after graduationProfessorOHKAWAKousakuProfessorOSADAMitsumasaDepartment ofChemistry and MaterialsDepartment ofChemistry and MaterialsAftergraduatingfromtheFunctionalPolymerScienceCourseattheFacultyofTextileScienceandTechnology(FTST)andcompletingthefirstsemesterofadoctoralprogramattheGraduateSchoolofOhkawaparticipatedinagraduatecourseofferedbytheUniversityofTokyo’sGraduateSchoolHesubsequentlyreturnedtotheInstituteofHighPolymerResearch(IHPR)runbytheFTSTatShinshuUniversityin1996asanassistantprofessorandlatersubmittedhisdoctoralthesistotheUniversityofTokyo(DoctorateofScience,1998).HewaspromotedtoassociateprofessorattheIHPRin2003.HishasservedasaprofessorintheDivisionofBiologicalandMedicalFibersattheInstituteforFiberEngineering(IFES)atShinshuUniversitysince2014.Ph.D.TohokuUniv.Japan.2005.Assoc.Prof.IchinosekiNationalColl.ofTech.2006-2014.VisitingScholar,theUniversityofMichigan,USA.2007-2008.Assoc.Prof.ShinshuUniv.2014-2023.Prof.ShinshuUniv.2024-.TheAsiangreenmusselcreatesthisstrangebyssusfiberunderwater.Byssusfibersaregeneratedbytheadhesivediskattheend(left:thestickypart),thedistalsection(center:ahard,strongfiber),andtheproximalsection(right:atough,strongfiber).InvestigationofHTWandSCWasnewchemicalreactionfieldProfessorEngineering,Science.BiologicalAnadvantageofbiomassconversioninHTWandSCWisthathotwatercanserveasasolvent,areactant,andacatalyst.Whilemanybiomass(e.g.,proteinandchitin)arenotwater-solubleatambientconditions,mostarereadilysolubilizedinHTWorSCW.Inaddition,H+andOH-concentrationsofHTWarehigherthanthoseofambientwaterandtheacidorbasecatalyzedreactionsproceedwithoutaddingcatalysts.Studentswouldworkatchemical,food,andpharmaceuticalcompaniesasanengineerandaresearcher.Ihopethatthestudentswillmakethebiggestimpactinthefieldofnewenvironmentalbenignchemicalengineering.NanofiberproductionfromunusedagriculturalresourcesFunctionalMaterialsbiomassfromwasteIamcarryingoutbioscienceandbiochemicalresearchintofibersmadebyorganismsthatliveinwater.MythephylaMolluscaandresearchprimarilycoversArthropoda.Bivalveclamsthatliveintheoceancreateatypeoffibercalledbyssus.Biomassconversioninhigh-temperaturewater(HTW)andsupercriticalwater(SCW)hasbeenstudied.HTWreferstowaterinitsliquidstatebelowitscriticaltemperatureandpressure(374ºC,22.1MPa),whereasitbecomesahighlycompressiblefluidcalledSCWabovethispoint.Wearealsousingawaterjetmachineforwetpulverizetreatmentofbiomass.Wateristhemostenvironmentallybenignsolvent.Thetargetbiomassarewood(lignin),fishscale(protein),squidpen(chitin).Forexample,wearetryingtoproducechitinnanofiberfromsquidpenbyawaterjetmachine.intheHigh-temperature water(HTW)and Supercritical water（SCW)超臨界水とはProperties of HTW and SCWpHpOHPressure24MPaTemperature[oC]The neutral pH of water is controlled by temperature and pressure.High-temperature waterWaste BiomassFunctionalMaterialsLignin(Wood）PhenoliccompoundsProtein（Fish scale）CollagenPeptideβ-Glucan（Mushroom）Oligo-saccharideChitin（Crab）25ProductionofFunctionalMaterialsfromBiomassbyUsingOnlyWaterExploring the future of biochemical research
元のページ ../index.html#27