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果汁感官評價

蘋(pin)(pin)果(guo)汁(zhi)鮮榨(zha)后和濃縮后在(zai)釀酒(jiu)(jiu)(jiu)方面有所不同，實驗表明︰鮮榨(zha)蘋(pin)(pin)果(guo)汁(zhi)發酵(jiao)產(chan)生的(de)(de)酒(jiu)(jiu)(jiu)樣(yang)(yang)的(de)(de)總(zong)酚含(han)量(liang)、總(zong)類(lei)黃(huang)酮(tong)含(han)量(liang)以及黃(huang)烷醇(chun)含(han)量(liang)均高于稀釋濃縮汁(zhi)發酵(jiao)產(chan)生的(de)(de)酒(jiu)(jiu)(jiu)樣(yang)(yang)的(de)(de)含(han)量(liang)。在(zai)起始(shi)糖(tang)度均為20Og / L的(de)(de)條件下,濃縮汁(zhi)蘋(pin)(pin)果(guo)酒(jiu)(jiu)(jiu)揮發酸含(han)量(liang)較(jiao)高,約是鮮榨(zha)汁(zhi)蘋(pin)(pin)果(guo)酒(jiu)(jiu)(jiu)的(de)(de)2.5倍，但其總(zong)酸含(han)量(liang)較(jiao)低，為2 . 6g / L，而鮮榨(zha)汁(zhi)蘋(pin)(pin)果(guo)酒(jiu)(jiu)(jiu)的(de)(de)總(zong)酸含(han)量(liang)為3.2L。兩種(zhong)蘋(pin)(pin)果(guo)酒(jiu)(jiu)(jiu)各具特色，鮮榨(zha)汁(zhi)果(guo)酒(jiu)(jiu)(jiu)呈(cheng)黃(huang)色，果(guo)香濃郁，甜(tian)潤爽口;濃縮汁(zhi)酒(jiu)(jiu)(jiu)樣(yang)(yang)呈(cheng)金(jin)黃(huang)色，醇(chun)香濃厚(hou)，

質構儀(yi)具有(you)功能強大、檢測精度(du)高(gao)(gao)、性能穩定等特(te)點，是(shi)高(gao)(gao)校(xiao)、科研院(yuan)所、食(shi)(shi)品(pin)企業、質檢機(ji)構實(shi)驗(yan)室等部門研究食(shi)(shi)品(pin)物性學(xue)有(you)力的(de)(de)分(fen)析(xi)工(gong)具。可(ke)應用(yong)(yong)(yong)于肉(rou)制品(pin)、糧油(you)食(shi)(shi)品(pin)、面(mian)食(shi)(shi)、谷物、糖果、果蔬、凝(ning)膠、果醬(jiang)等食(shi)(shi)品(pin)的(de)(de)物性學(xue)分(fen)析(xi)。質構儀(yi)可(ke)以(yi)準確檢測食(shi)(shi)品(pin)樣品(pin)隨時間變化的(de)(de)位置(zhi)和重量從而給出樣品(pin)的(de)(de)物性特(te)征。力的(de)(de)數據存(cun)數在表(biao)格(ge)里并(bing)且曲線顯示。儀(yi)器(qi)使(shi)(shi)用(yong)(yong)(yong)的(de)(de)軟(ruan)件(jian)直(zhi)觀簡(jian)單，可(ke)以(yi)對結果進(jin)行大量的(de)(de)分(fen)析(xi)。這款使(shi)(shi)用(yong)(yong)(yong)簡(jian)便(bian)的(de)(de)質構儀(yi)可(ke)以(yi)用(yong)(yong)(yong)于很(hen)多不(bu)同產品(pin)和材(cai)料的(de)(de)分(fen)析(xi)，確保(bao)了物性評(ping)價方式的(de)(de)簡(jian)單有(you)效。快速簡(jian)單地評(ping)估產品(pin)物理特(te)性，軟(ruan)件(jian)簡(jian)單易懂，使(shi)(shi)用(yong)(yong)(yong)簡(jian)單，儀(yi)器(qi)安裝后(hou)可(ke)以(yi)直(zhi)接(jie)操作使(shi)(shi)用(yong)(yong)(yong)，數據直(zhi)接(jie)存(cun)貯到數據庫文件(jian)里，便(bian)于以(yi)后(hou)的(de)(de)使(shi)(shi)用(yong)(yong)(yong)，轉移到電子(zi)數據表(biao)里，比較(jiao)和分(fen)析(xi)。儀(yi)器(qi)堅實(shi)耐用(yong)(yong)(yong)，適合(he)實(shi)驗(yan)室及生產線使(shi)(shi)用(yong)(yong)(yong)。軟(ruan)件(jian)升(sheng)級(ji)(ji)采用(yong)(yong)(yong)flash方式升(sheng)級(ji)(ji).

電(dian)子(zi)(zi)鼻(bi)是(shi)(shi)利用氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)傳(chuan)(chuan)感(gan)(gan)器(qi)陣列(lie)的(de)響(xiang)應(ying)圖案來識別(bie)氣(qi)(qi)(qi)(qi)(qi)味的(de)電(dian)子(zi)(zi)系統，它可以(yi)在(zai)幾小時、幾天甚至數月的(de)時間內連續地、實時地監測(ce)(ce)特定位置的(de)氣(qi)(qi)(qi)(qi)(qi)味狀(zhuang)況電(dian)子(zi)(zi)鼻(bi)主要由氣(qi)(qi)(qi)(qi)(qi)味取樣(yang)操作器(qi)、氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)傳(chuan)(chuan)感(gan)(gan)器(qi)陣列(lie)和信號(hao)(hao)處理(li)系統三種(zhong)功能(neng)器(qi)件組(zu)成。電(dian)子(zi)(zi)鼻(bi)識別(bie)氣(qi)(qi)(qi)(qi)(qi)味的(de)主要機理(li)是(shi)(shi)在(zai)陣列(lie)中(zhong)的(de)每個傳(chuan)(chuan)感(gan)(gan)器(qi)對被測(ce)(ce)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)都有不同(tong)的(de)靈敏度(du)，例如，一號(hao)(hao)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)可在(zai)某個傳(chuan)(chuan)感(gan)(gan)器(qi)上產生(sheng)高響(xiang)應(ying)，而對其他(ta)傳(chuan)(chuan)感(gan)(gan)器(qi)則(ze)是(shi)(shi)低響(xiang)應(ying)，同(tong)樣(yang)，二號(hao)(hao)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)產生(sheng)高響(xiang)應(ying)的(de)傳(chuan)(chuan)感(gan)(gan)器(qi)對一號(hao)(hao)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)則(ze)不敏感(gan)(gan)，歸(gui)根(gen)結底，整個傳(chuan)(chuan)感(gan)(gan)器(qi)陣列(lie)對不同(tong)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)的(de)響(xiang)應(ying)圖案是(shi)(shi)不同(tong)的(de)，正是(shi)(shi)這(zhe)種(zhong)區別(bie)，才(cai)使(shi)系統能(neng)根(gen)據傳(chuan)(chuan)感(gan)(gan)器(qi)的(de)響(xiang)應(ying)圖案來識別(bie)氣(qi)(qi)(qi)(qi)(qi)味。電(dian)子(zi)(zi)鼻(bi)的(de)核心器(qi)件是(shi)(shi)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)傳(chuan)(chuan)感(gan)(gan)器(qi)。氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)傳(chuan)(chuan)感(gan)(gan)器(qi)根(gen)據原理(li)的(de)不同(tong)，可以(yi)分為金屬(shu)氧(yang)化(hua)物(wu)型(xing)(xing)、電(dian)化(hua)學型(xing)(xing)、導(dao)電(dian)聚合(he)物(wu)型(xing)(xing)、質量型(xing)(xing)、光離子(zi)(zi)化(hua)型(xing)(xing)等(deng)很(hen)多(duo)類型(xing)(xing)。應(ying)用廣泛(fan)的(de)是(shi)(shi)金屬(shu)氧(yang)化(hua)物(wu)型(xing)(xing)。電(dian)子(zi)(zi)鼻(bi)的(de)應(ying)用場(chang)合(he)包括(kuo)環境監測(ce)(ce)、產品質量檢測(ce)(ce)（如食品、煙草、發酵產品、香精香料等(deng)）、醫學診斷、爆炸物(wu)檢測(ce)(ce)等(deng)。

電(dian)(dian)(dian)子舌(she)是模(mo)(mo)擬(ni)人的(de)(de)(de)舌(she)頭對(dui)(dui)待測(ce)(ce)(ce)樣(yang)品(pin)進行(xing)(xing)(xing)分(fen)(fen)(fen)(fen)析(xi)、識(shi)(shi)(shi)別和判(pan)斷，用多元統(tong)(tong)(tong)計(ji)方(fang)法對(dui)(dui)得到的(de)(de)(de)數據(ju)進行(xing)(xing)(xing)處理(li)，快速地反(fan)映出樣(yang)品(pin)整(zheng)體(ti)的(de)(de)(de)質量信息，實現對(dui)(dui)樣(yang)品(pin)的(de)(de)(de)識(shi)(shi)(shi)別和分(fen)(fen)(fen)(fen)類(lei)。是一種利用多傳(chuan)(chuan)感(gan)陣(zhen)列為(wei)基(ji)礎，感(gan)知樣(yang)品(pin)的(de)(de)(de)整(zheng)體(ti)特(te)征(zheng)響應(ying)(ying)信號(hao)(hao)(hao)，對(dui)(dui)樣(yang)品(pin)進行(xing)(xing)(xing)模(mo)(mo)擬(ni)識(shi)(shi)(shi)別和定(ding)量定(ding)性分(fen)(fen)(fen)(fen)析(xi)的(de)(de)(de)一種檢測(ce)(ce)(ce)技(ji)術(shu)。主要由味覺(jue)傳(chuan)(chuan)感(gan)器陣(zhen)列、信號(hao)(hao)(hao)采集(ji)(ji)系(xi)統(tong)(tong)(tong)和模(mo)(mo)式(shi)識(shi)(shi)(shi)別系(xi)統(tong)(tong)(tong)3 部分(fen)(fen)(fen)(fen)組成(cheng)。電(dian)(dian)(dian)子舌(she)是一種利用低選擇(ze)性、非特(te)異性、交互敏感(gan)的(de)(de)(de)多傳(chuan)(chuan)感(gan)陣(zhen)列為(wei)基(ji)礎，感(gan)測(ce)(ce)(ce)未知液(ye)體(ti)樣(yang)品(pin)的(de)(de)(de)整(zheng)體(ti)特(te)征(zheng)響應(ying)(ying)信號(hao)(hao)(hao)，應(ying)(ying)用化學計(ji)量學方(fang)法，對(dui)(dui)樣(yang)品(pin)進行(xing)(xing)(xing)模(mo)(mo)式(shi)識(shi)(shi)(shi)別和定(ding)性定(ding)量分(fen)(fen)(fen)(fen)析(xi)的(de)(de)(de)檢測(ce)(ce)(ce)技(ji)術(shu)。電(dian)(dian)(dian)子舌(she)主要由味覺(jue)傳(chuan)(chuan)感(gan)器陣(zhen)列、信號(hao)(hao)(hao)采集(ji)(ji)系(xi)統(tong)(tong)(tong)和模(mo)(mo)式(shi)識(shi)(shi)(shi)別系(xi)統(tong)(tong)(tong)3部分(fen)(fen)(fen)(fen)組成(cheng)；味覺(jue)傳(chuan)(chuan)感(gan)器陣(zhen)列模(mo)(mo)擬(ni)生物系(xi)統(tong)(tong)(tong)中的(de)(de)(de)舌(she)頭，對(dui)(dui)不同“味道"的(de)(de)(de)被測(ce)(ce)(ce)溶液(ye)進行(xing)(xing)(xing)感(gan)應(ying)(ying)，其主要由味覺(jue)傳(chuan)(chuan)感(gan)器陣(zhen)列、信號(hao)(hao)(hao)采集(ji)(ji)系(xi)統(tong)(tong)(tong)和模(mo)(mo)式(shi)識(shi)(shi)(shi)別系(xi)統(tong)(tong)(tong)3部分(fen)(fen)(fen)(fen)組成(cheng)；信號(hao)(hao)(hao)采集(ji)(ji)系(xi)統(tong)(tong)(tong)模(mo)(mo)擬(ni)神經感(gan)覺(jue)系(xi)統(tong)(tong)(tong)采集(ji)(ji)，被激發(fa)的(de)(de)(de)信號(hao)(hao)(hao)傳(chuan)(chuan)遞(di)到電(dian)(dian)(dian)腦(nao)模(mo)(mo)式(shi)識(shi)(shi)(shi)別系(xi)統(tong)(tong)(tong)中；模(mo)(mo)式(shi)識(shi)(shi)(shi)別系(xi)統(tong)(tong)(tong)即發(fa)揮生物系(xi)統(tong)(tong)(tong)中大腦(nao)的(de)(de)(de)作用對(dui)(dui)信號(hao)(hao)(hao)進行(xing)(xing)(xing)特(te)征(zheng)提取(qu)，建立模(mo)(mo)式(shi)識(shi)(shi)(shi)別模(mo)(mo)型(xing)，并(bing)對(dui)(dui)不同被測(ce)(ce)(ce)溶液(ye)進行(xing)(xing)(xing)區分(fen)(fen)(fen)(fen)辨識(shi)(shi)(shi)。因此，電(dian)(dian)(dian)子舌(she)也稱(cheng)為(wei)智能味覺(jue)仿生系(xi)統(tong)(tong)(tong)，是一類(lei)新(xin)型(xing)的(de)(de)(de)分(fen)(fen)(fen)(fen)析(xi)檢測(ce)(ce)(ce)儀器。