云南核桃（Juglans sigillata Dode）的物理特性-论文.pdf

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1、第39卷第3期昆明理工大学学报(自然科学版)V0】．39No．32014年6月JournalofKunmingUniversityofScienceandTechnology(NaturalScienceEdition)Jun．2014doi：10．3969／j．issn．1007—855x．2014．03．013PhysicalPropertiesofSigillateYANGWei．JIANGMiaO．CHENChao—yin(1．FacuhyofModernAgricultureEngineering，KunmingUniversit

2、yofScienceandTechnology，Kunming650500，China；2．FacultyofLifeScienceandTechnology，KunmingUniversityofScienceandTechnology，Kunming650500，China)Abstract：Sigillatewalnut(JuglanssigillataDode)isanativeJuglansspeciescultivatedlocallyinsouthwestChina．Thephysicalpropertiesofwalnuta

3、reimportantinthedesignofharvesting，handling，andprocessingequipment．Inthisstudy，somephysicalpropertiesofwalnut(J．sigillata)anditskernelareinvestigatedintermsoflength，width，thickness，geometricmeandiameter，sphericity，surfacearea，unitmass，volume，bulkdensityandparticledensityat

4、initialandvariousmoisturecontents，respectively．Theresultsshowthattheaveragelength，width，thickness，geometricmeandiameter，sphericity，surfacearea，unitmass，volume，bulkdensityandparticledensityofnutrangefrom38．96to37．18mm，41．04to39．66mm，34．92to33．68mm，38．22to36．76mm，93．13％to92．

5、68％，45．89to42．45cm，18．85to12．80g，29．23to26．00cm，359．50to301．89kg／m。and754。00to578．66kg／masthemoisturecontentdecreasedfrom35．7to5．3g／lO0g，whilethecorrespondingvaluesforkernel(exceptsurfacearea)are29．40to28．14mm，35．63to33．94mm，28．43to26．90mm，31．O0to29．51mm，87．25％to86．55％，11．

6、85to8．85g，15．59to13．45cm。623．68to595．96kg／mand1039．47to936．51kg／m．respectively，inthemoisturerangefrom29．8％to5．9％．Mostofthestudiedphysicalpropertiesofthiskindofwalnutanditskernelaresignificantlyaffectedbychangingmoisturecontentinthestudiedrangeexceptsphericity．Thelength，wid

7、th，thickness，geometricmeandiameter，surfacearea，unitmass，volume，bulkdensityandparticledensitydecreaselinearlywithdecreasingmoisturecontent，whilethevaluesofsphericityshowiregularvariationwiththemoisturecontentstudied．Keywords：sigillatewalnut(JuglanssigillataDode)；kernel；sphe

8、ricity；volume；bulkdensity；particledensity；moisturecontentCLCNumber：$664．1，TS255．6Document