共轭亚油酸钙质量控制体系与其奶牛抗热应激.研究

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1、中山大学硕士学位论文因此，本研究初步筛选出较优的生产共轭亚油酸钙盐的加工工艺参数，降低生产成本，有利于大规模推广应用；对共轭亚油酸钙盐进行了质量研究、初步稳定性研究，初步建立了共轭亚油酸钙盐的质量标准，为国家与企业评价共轭亚油酸钙盐的质量提供了依据；并观察共轭亚油酸钙盐对奶牛的营养调控和抗热应激的影响，为奶牛抗热应激找到了新的途径，为大规模推广应用提供基础数据，更有利于奶牛养殖业的发展。关键词：共轭亚油酸；质量标准；稳定性；奶牛；热应激；乳脂抑制综合症中山大学硕士学位论文Qualitystandardof●l-·l·‘l‘1con]ugatedlinoleicacid

2、CalciUmancIitseffectonheatstressindairyCOWSMajor：PharmakognosieName：ChenPuSupervisor：Prof．YangDepoABSTRACT1987，ParizahadfirstlyfoundthatCLAshowedanticancerproperty．Afterthat，otherresearchershavealsofoundCLAledtodepressfattydeposition，anti—atherosclerosis，enhanceimmunity，promoteskeletong

3、rowthandSOon．CLApossessesmanyhighphysiologicalactivatesandwasextensivelyusedinfieldsofmedicine，foods，agncultureandcosmetics．However，CLAisintheformofliquidness，whichisunfavourablefortransport，additionandapplication．SothereisnecessitytoimproveitsdosageformordevelopCLAderivatives，whichisbe

4、neficialtodevelopnewhealthfood，nutrientsupplement，foodadditive，feedstuffadditive，medicineintermediateordrug．Nowadays，thepreparationofCLAhasmainlytwomethods：oneisfromthechemicalmethodsynthesizingCLA，andtheotheristhroughmicrobicbioconversionofnaturalfattyacids．CommerciallyCLAismainlyobtai

5、nedbychemicalmodificationofplantoilshighinlinoleicacid(LA)．SaffloweroilcontainsthehighestcontentofLAinallknownplantoils．ThecalciumsaltofCLA(CLA-Ca)usedinthis．VIl—中山大学硕士学位论文thesisistheCLAproduct，whichobtainedwithsaffloweroilastherawmaterial，aftertheindustrialprocessofstructuremodificatio

6、nandrefinementwithMolecularDistillation(MD)，andsynthesizedfrombasecatalysisisomerism．CLA—CaproducedthroughreactionofsapongCLAandcalciumsaltisanewhealthcareproduct，foodadditiveandenergyfeedstuffadditive．CLA—Caisaprotectivelipidformedfromthecombinationoffattyacidandcalciumion，SOitCanbeuse

7、dasanimalfeedadditive．CLA—Caischaracterizedbyhighenergyconcentration，don’tinterferemicrobeactioninl'amen，supplementcalciumionwhilesupplementenergy,andeffectivelyrelievenegativeenergybalanceofhigh。yieldCoWS．ThetopicfirstlydevelopedthesynthesistechnologyofCLA-Cathroughorthogonald