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1、蜂产物蜜蜂的产物,包含蜂蜜,蜂王浆,蜂胶,蜂花粉等,是养分丰厚的天然滋补品,在保健方面有广泛的用处[1],特别是它们的抗菌效果。蜂产物的抗菌成分主要有葡萄糖氧化酶,过氧化氢酶,溶菌酶等。溶菌酶[2](Lysozyme)是一种能水解粘多糖的碱性水解酶,相对分子质量14700Da,由129个氨基酸残基构成,碱性氨基酸残基较多,等电点10.8左右,最适PH6-7左右。粘多糖是细菌细胞壁的主要成分之一,溶菌酶能催化水解细胞壁中的N-乙酰胞壁酸和N-乙酰氨基葡萄糖之间的
2、3-1,4糖昔键,使细胞壁不溶性多糖分解成可溶性糖肽,细菌内容物逸出而使细胞壁溶解。因而
3、蜂产物中溶菌酶含量凹凸也是其质量好坏的重要目标。常用的溶菌酶检测办法有:琼脂板分散法、比浊法、琼脂糖火箭电泳法[3-7]等,这些办法可行且测定成果较准确,但过程相对杂乱,或需求无菌操作。本文运用简便紫外可见分光光度法对几种蜂产物中溶菌酶含量进行检测。Productcontainshoneybee,beeproducts,royaljelly,propolis,beepollen,nutrientrichnaturalsupplements,[1]iswidelyusedinhealthcare,especiallytheirantibacteria
4、leffect・Antibacterialcomponentofbeeproductsaremainlyofglucoseoxidase,catalase,lysozyme・[2]lysozyme(Lysozyme)isakindofalkalinehydrolysisofmucopolysaccharides,relativemolecularmassof14700Da,composedof129aminoacidresidues,basicaminoacidresiduesmore,isoelectricpointaround10.8,theo
5、ptimumPH6-7・Polysaccharideisoneofthemaincomponentsofbacterialcellwalls,lysozymecouldcatalyzethehydrolysisofcel1wal1betweentheN-N-acetylmuramicacidandN-acetylglucosaminebeta-1,4glycosidicbond,thecellwal1ofinsolublepolysaccharideisdecomposedintosolubleglycopeptide,bacterialconte
6、ntofthecellwal1dissolutionescape・Sotheconcave-convexlysozymecontentinbeeproductsisthequalityoftheimportantgoalsof.Lysozymedetectionmethodscommonlyusedare:agarplatediffusionmethod,turbidimetricmethod,agaroserocketelectrophoresismethod[3-7],themethodisfeasibleandaccuratedetermin
7、ationofresults,buttheprocessisrelativelycomplex,orthedemandofasepticoperation.Inthispaper,usingsimpleUV-visiblespectrophotometrywasusedfordeterminationofthecontentoflysozymeinseveralkindsofbeeproducts・1试验有些Some1test1.1器件及试剂器件:紫外可见分光光度计(T6新世纪,北京普析通用仪器有限责任公司);电子分析天平(准确度0.0001上海天
8、普仪器有限公司);离心几(800型,上海手术器械厂);透析袋:分子量截留规模8000一10000。The1.1deviceandreagentdevices:UV-visiblespectrophotometer(T6thenewcentury,BeijingPurkinjeGeneralInstrumentCo.,Ltd);electronicanalyticalbalance(accuracy0.0001ShanghaiTianpuInstrumentCo.,Ltd);centrifuge(type800,Shanghaioperationin
9、strumentfactory);dialysisbag:molecularweightcut-offscale80001