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ID:33007950
大小:2.17 MB
页数:68页
时间:2019-02-19
《免洗小米加工工艺分析》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、基二淀粉磷酸酯上光剂的浓度、温度和添加量分别为4%、50℃、1.o%。膜化法加工得到的免洗小米,加工精度在95%左右,水分含量11%左右,无沙石,无霉变粒,杂质总量≤O.02%,色泽、气味、口味纯正、质量高、保持小米天然米香、清洁、卫生、不用清洗即可直接进行蒸煮食用。通过免洗小米的质量,外观、口味及成本考虑,对多机轻碾法和膜化法2种方法进行了比较,膜化法加工得到的免洗小米质量优于多机轻碾法,且工序简单,成本低廉。因此,生产免洗小米,选择膜化法加工最佳。通过对免洗小米质量标准的制定得到以下结论:采用多机轻碾法和膜化法加工免洗小米,按照制定的免洗小米标准进行各项指标的测定,得
2、到的免洗小米质量高于GB厂r11766.2008的标准,符合此制定的质量标准,故这两种加工方法能够加工出质量高的,色泽、气味、口味纯正、保持小米天然米香、清洁、卫生、不用清洗即可直接进行蒸煮食用的免洗小米。免洗小米的质量标准为:加工精度≥90%,杂质总量≤0.01%,碎米总量≤4.O%,无沙石,无霉变粒,无糠粉,色泽、气味、口味正常,水分含量≤14.0%。关键词:免洗小米,多机轻碾法,膜化法,质量标准ⅡSTUDYoNDISPoSABLEMILLETPRoCESSINGCONDITIoNSABSTRACTMilletisrichinpolyunsaturatedfattya
3、cids,highqualityproteinandotherfunctionalcomponents,whichisbeneficialtohumans.Milletiswidelyacceptedbypeople.Commonmilletisneededtowashbeforecooking,thewashingtreatmentnotonlymakeslotsofwater-solublenutrientslose,butalsowastesalotofwater.Itisnecessarytostudytheprocessofdisposablemillet.In
4、thispaper,thelossofsolublesolidandnutrientsaRermilletwashingWasstudiedfirstly,andthentheprocessandparametersofdisposablemilletWasstudiedbyusingmulti—lightmachinegrindingprocessandmembranemethod.Theoptimumprocessingparameters锄.eselectedbycomparingthetwomethods.Finally,thequalitystandardsof
5、disposablemilletwereestablished.Theresultswereasfollows:Thecontentofdifferentindexs(solids,iron,calciumandphosphorus)weredeterminedbyAbberefractive,phenanthrolinespectrophotometry,atomicabsorptionmethodofGB/T5009.92andspectrophotometrymethodofGB/T5009.87.Theresultswere:thethreesolidslOSSr
6、atewere2.50%,0.83%and0.42%respectively,thetotalsolidslossrateWas3.75%;thethreeironlossratewere10.62%,5.75%and1.31%respectively,thetotalironlossrateWas17.68%;thethreecalciumlossratewere31.36%,25.86%and12.18%respectively,thetotalcalciumlossratewas69.41%;thethreephosphoruslossratewere12.65%,
7、4.36%and2.24%respectively,thetotalphosphoruslossrateWas19.25%.Theprocessingtechnologyofdisposablemilletwasstudiedbyusingmulti-lightmachinegrindingprocessfromcleaning,hulling,milling,adsorptingchaffpowertolowtemperaturerespectively.Theoptimumprocessandparameterswerea
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