粉板法以及白度儀法的測量領域限製因素以及地位分析
來源: 類別:實用技術 更新時間:2011-01-08 閱讀次
【本資訊由中國糧油儀器網提供】粉板法以及白度儀法的測量領域限製因素以及地位分析
麵粉的等級劃分中,不僅僅包括麵粉的常規檢測項目,比如磁性金屬含量、脂肪酸含量、麵mian粉fen水shui分fen等deng檢jian測ce項xiang目mu,同tong時shi對dui於yu麵mian粉fen的de感gan官guan品pin質zhi的de檢jian測ce也ye是shi尤you為wei的de重zhong要yao的de,麵mian粉fen的de感gan官guan品pin質zhi的de主zhu要yao是shi麵mian粉fen的de白bai度du檢jian測ce,麵mian粉fen的de白bai度du的de測ce量liang普pu遍bian使shi用yong白度測定儀來進行操作,但是不同分類的白度檢測均是有一定的差異的,比如在對高水分小麥、露天囤保管的小麥、芽(ya)麥(mai)等(deng)這(zhe)幾(ji)類(lei)粉(fen)的(de)白(bai)度(du)測(ce)定(ding)的(de)時(shi)候(hou)就(jiu)不(bu)好(hao)進(jin)行(xing)選(xuan)擇(ze)白(bai)度(du)儀(yi),而(er)需(xu)要(yao)使(shi)用(yong)分(fen)班(ban)發(fa)來(lai)進(jin)行(xing)測(ce)定(ding),本(ben)文(wen)就(jiu)簡(jian)單(dan)分(fen)析(xi)一(yi)下(xia)這(zhe)兩(liang)種(zhong)方(fang)法(fa)的(de)優(you)缺(que)點(dian)以(yi)及(ji)地(di)位(wei)。
白度儀facaiyongyiqifenxi,shourenweiyingxiangdeyinsubijiaoshao,qiebuxuyaozaizhibeibiaozhunyangpin。zhifenqiyegenjujianyanshujuyuqiyezhidingdebaidubiaozhunjinxingduizhaohenrongyijiunengdechushifoucaigoudepanduan,yekeyiyongyuquedinggezhongbutongbaidudexiaomaishengchandapeidebili。baiduyishichangguifenleiqiyedebibeiyiqi。
白度儀suishiyongpubianzhunque,danshiyijiuyouyidingdexianzhiyinsu,biruqishouxiaomaichuzangtiaojiandeyingxiang,zaiduigaoshuifenxiaomaideng,yongbaiduyifajianyandejieguowangwangbingbunengzhenshifanyingfensezhuangkuang,erzhiyoutongguofenbanfacainengmingxiankanchufensedeyoulie。yu白度儀法相比,粉板法的操作比較繁鎖,且需要事先確定一個小麥樣品做為標準樣品,而標準樣品存放時間過長或儲存不當也會出現粉色發灰、色se澤ze呆dai白bai等deng現xian象xiang,影ying響xiang檢jian驗yan結jie果guo。在zai對dui麵mian粉fen企qi業ye中zhong的de分fen類lei檢jian測ce的de時shi候hou,兩liang種zhong方fang法fa應ying該gai相xiang結jie合he使shi用yong,可ke以yi按an照zhao這zhe樣yang的de模mo式shi來lai進jin行xing檢jian測ce,以yi粉fen板ban法fa作zuo為wei是shi否fou采cai購gou的de判pan定ding依yi據ju,而er以yi白bai度du儀yi法fa指zhi導dao生sheng產chan搭da配pei。
麵粉的等級劃分中,不僅僅包括麵粉的常規檢測項目,比如磁性金屬含量、脂肪酸含量、麵mian粉fen水shui分fen等deng檢jian測ce項xiang目mu,同tong時shi對dui於yu麵mian粉fen的de感gan官guan品pin質zhi的de檢jian測ce也ye是shi尤you為wei的de重zhong要yao的de,麵mian粉fen的de感gan官guan品pin質zhi的de主zhu要yao是shi麵mian粉fen的de白bai度du檢jian測ce,麵mian粉fen的de白bai度du的de測ce量liang普pu遍bian使shi用yong白度測定儀來進行操作,但是不同分類的白度檢測均是有一定的差異的,比如在對高水分小麥、露天囤保管的小麥、芽(ya)麥(mai)等(deng)這(zhe)幾(ji)類(lei)粉(fen)的(de)白(bai)度(du)測(ce)定(ding)的(de)時(shi)候(hou)就(jiu)不(bu)好(hao)進(jin)行(xing)選(xuan)擇(ze)白(bai)度(du)儀(yi),而(er)需(xu)要(yao)使(shi)用(yong)分(fen)班(ban)發(fa)來(lai)進(jin)行(xing)測(ce)定(ding),本(ben)文(wen)就(jiu)簡(jian)單(dan)分(fen)析(xi)一(yi)下(xia)這(zhe)兩(liang)種(zhong)方(fang)法(fa)的(de)優(you)缺(que)點(dian)以(yi)及(ji)地(di)位(wei)。
白度儀facaiyongyiqifenxi,shourenweiyingxiangdeyinsubijiaoshao,qiebuxuyaozaizhibeibiaozhunyangpin。zhifenqiyegenjujianyanshujuyuqiyezhidingdebaidubiaozhunjinxingduizhaohenrongyijiunengdechushifoucaigoudepanduan,yekeyiyongyuquedinggezhongbutongbaidudexiaomaishengchandapeidebili。baiduyishichangguifenleiqiyedebibeiyiqi。
白度儀suishiyongpubianzhunque,danshiyijiuyouyidingdexianzhiyinsu,biruqishouxiaomaichuzangtiaojiandeyingxiang,zaiduigaoshuifenxiaomaideng,yongbaiduyifajianyandejieguowangwangbingbunengzhenshifanyingfensezhuangkuang,erzhiyoutongguofenbanfacainengmingxiankanchufensedeyoulie。yu白度儀法相比,粉板法的操作比較繁鎖,且需要事先確定一個小麥樣品做為標準樣品,而標準樣品存放時間過長或儲存不當也會出現粉色發灰、色se澤ze呆dai白bai等deng現xian象xiang,影ying響xiang檢jian驗yan結jie果guo。在zai對dui麵mian粉fen企qi業ye中zhong的de分fen類lei檢jian測ce的de時shi候hou,兩liang種zhong方fang法fa應ying該gai相xiang結jie合he使shi用yong,可ke以yi按an照zhao這zhe樣yang的de模mo式shi來lai進jin行xing檢jian測ce,以yi粉fen板ban法fa作zuo為wei是shi否fou采cai購gou的de判pan定ding依yi據ju,而er以yi白bai度du儀yi法fa指zhi導dao生sheng產chan搭da配pei。
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