mianjinhanliangshimianfenpinzhicedingzhongdezhongyaocanshu，chulemianjinhanliang
，mianjinzhiliangyeshiyongyifenximianfenpinzhidezhongyaozhibiao，yiwangrenmenwangwangrenweimianjinhanlianggaojiushiyouzhimianfen，erduimianjindezhiliangweigeiyuchongfenzhongshi，shijishang
，mianjinhanlianghemianjinzhiliangzaipingjiamianfenpinzhishijuyoutongdengdezhongyaoxing
，erqiehaijuyouhubuzuoyong。yinci，gongzuorenyuanzaijiancemianfenpinzhishi，bujinxuyaojianceqimianjinhanliang，haixuyaocedingmianjinzhiliang，xiangyaokuaisuhuodezhelianggecanshu，keliyong麵筋指數測定儀進行測定。

    MJ-IIIA型xing麵mian筋jin指zhi數shu測ce定ding儀yi是shi將jiang一yi定ding量liang的de麵mian粉fen或huo全quan麥mai粉fen加jia一yi定ding量liang的de鹽yan水shui
，在zai帶dai有you篩shai網wang的de洗xi滌di杯bei中zhong混hun合he十shi幾ji秒miao形xing成cheng麵mian團tuan，然ran後hou用yong鹽yan水shui洗xi滌di，去qu除chu麵mian團tuan中zhong澱dian粉fen等deng可ke溶rong於yu水shui的de物wu質zhi，就jiu可ke得de到dao麵mian筋jin，在zai離li心xin力li的de作zuo用yong下xia
，麵mian筋jin離li心xin出chu外wai表biao附fu有you水shui分fen並bing使shi部bu分fen濕shi麵mian筋jin穿chuan過guo篩shai盒he孔kong板ban
，稱cheng量liang計ji算suan後hou可ke得de到dao麵mian粉fen中zhong濕shi麵mian筋jin含han量liang及ji麵mian筋jin指zhi數shu，利li用yong烘hong幹gan儀yi烘hong幹gan水shui分fen後hou，稱cheng量liang可ke得de到dao幹gan麵mian筋jin的de含han量liang和he麵mian筋jin持chi水shui率lv。
    MJ-IIIA型麵筋指數測定儀操作步驟：稱取一定量的樣品倒入洗滌杯中，輕輕搖動使粉層平整。洗滌工作完成後應立即把整個麵筋球放到一個篩盒上(而不要把麵筋球分成幾分)
，如果隻需離心單個麵筋球，那麼在另一離心篩盒上稱取3g的橡皮塊代替樣品作為配重來平衡離心機，合上並壓平離心蓋板，同時按動離心鍵
，轉盤開始轉動，此時不能打開離心蓋板。1min後離心電機自動停止工作，稍候片刻即可打開離心蓋板，取下篩盒，用不鏽鋼刮板小心刮淨通過篩板下的麵筋，在0.01gganliangtianpingshangchengzhong
，zaijiangmeiyoutongguoshaibandemianjinyongnieziquchu
，yefangrutianpingshangyutongguoshaibandemianjinyiqichengzhong，dedaomianjinzongzhongliang。jisuanhoudedaoshimianjindehanlianghemianjinzhishu。jietonghongganyidianyuan，yureyue10min後，打開蓋子
，把濕麵筋放在烘幹板上，合上蓋子，烘幹6min
，取出後立即稱重並計算幹麵筋含量及麵筋持水率。