螺旋藻的磁处理培养

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1、华南理工大学学报（自然科学版）第30卷第11期journalofSouthChinaUniversityofTechnologyVol.30No.112002年11月（NaturalScienceEdition）November2002"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""ArticleID：1000-565X（2002）11-0049-06!CultivationofSPirulinaPlatensiswithamagneticFi

2、eldtreatment12111GuOSi-yuanLizhi-yOngLiLinCaimiaO-yanzhengBi-sheng（1.CollegeofFood&biologicalEngineering，SouthChinaUniv.ofTech.，Guangzhou510640，China；2.CollegeofLifeScience&Technology，ShanghaijiaotongUniversity，Shanghai200240，China）Abstract：Theenhancementofcultiv

3、ationofSPiruIinaPIatensisWithamagneticfieldtreatmenttech-nologyWasinvestigated.itWasfoundthatthecultivationofSPiruIinaPIatensiscouldbeobviouslyPro-motedbyasuitablemagneticfieldtreatment.whenmicroalgaeSPiruIinaPIatensisWereculturedunderanextraneousmagneticfieldWit

4、hintensityof200!320kA／m，themaximumdryWeightofcellsWas2.76g／LonthesixthgroWthday，WhichWas46.8%morethanthecontrol.MeanWhilethesPecificgroWthrateincreasedfrom0.4to0.6d-1，andtheculturalPeriodcouldbecutdoWnfor2!3d.Atthesametime，thecontentofProteinsinSPiruIinaPIatensis

5、increasedby5.2mg／g，thetotalaminoacids（excePttryPtoPhan）inSPiruIinaPIatensisincreasedby0.71mg／g，Whereessentialaminoacidsincreasedby3.15mg／g.inaddition，thecontentsoftraceelementssuchasSr，Ni，Cu，MnandZnal-soincreasedsharPly，e.g.，SrandNiWere22.3and5.1timesmorethanthec

6、ontrolsresPectively.Fi-nally，thePaPerPresentsabriefdiscussiononthestimulationofmagneticfieldtreatmentofthecultureofSPiruIinaPIatensisandPointsoutthatitisrelativetothePromotionofPhotosynthesisandtheen-hancementofnutritionalassimilation.Keywords：magnetictreatment；S

7、PiruIinaPIatensis；cultivation；enhancementCLCnumber：O949.2Documentcode：AgroWthProcess.0IntroductionMagneticfieldtreatmenttechnologyhasbeenusedsuccessfullyinchemicalengineeringforPre-ThereisamagneticnatureWitheverysub-［1，2］ventingscalingonheattransfersurface，forsta

8、nceintheWorld，eitherParamagnetism，dia-［3］［4］bio-synthesisandforirrigationofPlants.magnetismorferromagnetism.AndamagneticHoWever，theaPPlicationofmagneticfieldtr