食品感官評價
食品感官評價
針對食(shi)品(pin)(pin)的(de)(de)感(gan)(gan)(gan)官(guan)(guan)(guan)(guan)特(te)性進行描述、 定(ding)(ding)義而制(zhi)(zhi)定(ding)(ding)的(de)(de)指(zhi)標為食(shi)品(pin)(pin)的(de)(de)感(gan)(gan)(gan)官(guan)(guan)(guan)(guan)指(zhi)標。 對不(bu)同的(de)(de)感(gan)(gan)(gan)官(guan)(guan)(guan)(guan)特(te)性可(ke)制(zhi)(zhi)定(ding)(ding)不(bu)同的(de)(de)感(gan)(gan)(gan)官(guan)(guan)(guan)(guan)指(zhi)標。 所有感(gan)(gan)(gan)官(guan)(guan)(guan)(guan)指(zhi)標的(de)(de)集合構成(cheng)了感(gan)(gan)(gan)官(guan)(guan)(guan)(guan)指(zhi)標體系(xi)。 對于某種特(te)定(ding)(ding)的(de)(de)食(shi)品(pin)(pin), 無需對其所有的(de)(de)感(gan)(gan)(gan)官(guan)(guan)(guan)(guan)特(te)性制(zhi)(zhi)定(ding)(ding)指(zhi)標, 只需選(xuan)擇和確定(ding)(ding)那些能(neng)夠反(fan)映該食(shi)品(pin)(pin)感(gan)(gan)(gan)官(guan)(guan)(guan)(guan)品(pin)(pin)質特(te)征的(de)(de)感(gan)(gan)(gan)官(guan)(guan)(guan)(guan)特(te)性并加以描述、定(ding)(ding)義和評價(jia), 即(ji)為該食(shi)品(pin)(pin)的(de)(de)感(gan)(gan)(gan)官(guan)(guan)(guan)(guan)指(zhi)標, 并構成(cheng)其感(gan)(gan)(gan)官(guan)(guan)(guan)(guan)品(pin)(pin)質評價(jia)指(zhi)標體系(xi)
質(zhi)(zhi)構(gou)儀(yi)(yi)具有功能強(qiang)大(da)、檢測精度高、性(xing)(xing)能穩定等(deng)特(te)點,是(shi)高校(xiao)、科研院所、食品(pin)(pin)(pin)企(qi)業、質(zhi)(zhi)檢機(ji)構(gou)實(shi)驗(yan)室等(deng)部(bu)門研究食品(pin)(pin)(pin)物性(xing)(xing)學有力(li)的(de)(de)分(fen)析(xi)(xi)工具。可(ke)(ke)應用(yong)(yong)(yong)(yong)于(yu)肉制品(pin)(pin)(pin)、糧(liang)油食品(pin)(pin)(pin)、面食、谷(gu)物、糖果(guo)、果(guo)蔬(shu)、凝(ning)膠(jiao)、果(guo)醬等(deng)食品(pin)(pin)(pin)的(de)(de)物性(xing)(xing)學分(fen)析(xi)(xi)。質(zhi)(zhi)構(gou)儀(yi)(yi)可(ke)(ke)以(yi)(yi)準確檢測食品(pin)(pin)(pin)樣(yang)品(pin)(pin)(pin)隨(sui)時(shi)間(jian)變(bian)化的(de)(de)位置和(he)重量從而給出樣(yang)品(pin)(pin)(pin)的(de)(de)物性(xing)(xing)特(te)征。力(li)的(de)(de)數(shu)據(ju)存數(shu)在表(biao)格里(li)并且(qie)曲(qu)線(xian)顯示。儀(yi)(yi)器使(shi)用(yong)(yong)(yong)(yong)的(de)(de)軟(ruan)件直(zhi)觀(guan)簡單(dan)(dan)(dan),可(ke)(ke)以(yi)(yi)對結果(guo)進行大(da)量的(de)(de)分(fen)析(xi)(xi)。這(zhe)款使(shi)用(yong)(yong)(yong)(yong)簡便的(de)(de)質(zhi)(zhi)構(gou)儀(yi)(yi)可(ke)(ke)以(yi)(yi)用(yong)(yong)(yong)(yong)于(yu)很多不同產(chan)(chan)品(pin)(pin)(pin)和(he)材料的(de)(de)分(fen)析(xi)(xi),確保了物性(xing)(xing)評價方式(shi)的(de)(de)簡單(dan)(dan)(dan)有效。快速(su)簡單(dan)(dan)(dan)地評估產(chan)(chan)品(pin)(pin)(pin)物理特(te)性(xing)(xing),軟(ruan)件簡單(dan)(dan)(dan)易懂,使(shi)用(yong)(yong)(yong)(yong)簡單(dan)(dan)(dan),儀(yi)(yi)器安裝后可(ke)(ke)以(yi)(yi)直(zhi)接操作(zuo)使(shi)用(yong)(yong)(yong)(yong),數(shu)據(ju)直(zhi)接存貯到數(shu)據(ju)庫文件里(li),便于(yu)以(yi)(yi)后的(de)(de)使(shi)用(yong)(yong)(yong)(yong),轉(zhuan)移到電子數(shu)據(ju)表(biao)里(li),比較(jiao)和(he)分(fen)析(xi)(xi)。儀(yi)(yi)器堅實(shi)耐用(yong)(yong)(yong)(yong),適合實(shi)驗(yan)室及生產(chan)(chan)線(xian)使(shi)用(yong)(yong)(yong)(yong)。軟(ruan)件升級(ji)采用(yong)(yong)(yong)(yong)flash方式(shi)升級(ji).
電(dian)(dian)(dian)(dian)子(zi)鼻(bi)是利用(yong)氣(qi)(qi)體(ti)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)陣(zhen)列的響(xiang)應(ying)(ying)圖案來(lai)識(shi)別(bie)(bie)(bie)氣(qi)(qi)味的電(dian)(dian)(dian)(dian)子(zi)系統,它(ta)可以在幾小時、幾天甚至數(shu)月的時間內(nei)連(lian)續地、實時地監(jian)測(ce)特定(ding)位置(zhi)的氣(qi)(qi)味狀況電(dian)(dian)(dian)(dian)子(zi)鼻(bi)主要由氣(qi)(qi)味取樣(yang)操作(zuo)器(qi)、氣(qi)(qi)體(ti)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)陣(zhen)列和信號處理系統三種(zhong)功能器(qi)件(jian)組(zu)成。電(dian)(dian)(dian)(dian)子(zi)鼻(bi)識(shi)別(bie)(bie)(bie)氣(qi)(qi)味的主要機理是在陣(zhen)列中的每個傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)對被(bei)測(ce)氣(qi)(qi)體(ti)都有不同的靈敏度(du),例如,一(yi)號氣(qi)(qi)體(ti)可在某個傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)上產生(sheng)(sheng)高(gao)響(xiang)應(ying)(ying),而對其(qi)他傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)則是低響(xiang)應(ying)(ying),同樣(yang),二號氣(qi)(qi)體(ti)產生(sheng)(sheng)高(gao)響(xiang)應(ying)(ying)的傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)對一(yi)號氣(qi)(qi)體(ti)則不敏感(gan)(gan)(gan),歸根(gen)(gen)結底,整個傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)陣(zhen)列對不同氣(qi)(qi)體(ti)的響(xiang)應(ying)(ying)圖案是不同的,正是這種(zhong)區(qu)別(bie)(bie)(bie),才使系統能根(gen)(gen)據傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)的響(xiang)應(ying)(ying)圖案來(lai)識(shi)別(bie)(bie)(bie)氣(qi)(qi)味。電(dian)(dian)(dian)(dian)子(zi)鼻(bi)的核心器(qi)件(jian)是氣(qi)(qi)體(ti)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)。氣(qi)(qi)體(ti)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)根(gen)(gen)據原理的不同,可以分為金(jin)屬氧化(hua)物(wu)型(xing)、電(dian)(dian)(dian)(dian)化(hua)學(xue)型(xing)、導電(dian)(dian)(dian)(dian)聚合(he)物(wu)型(xing)、質(zhi)量型(xing)、光離子(zi)化(hua)型(xing)等很多類型(xing)。應(ying)(ying)用(yong)廣泛(fan)的是金(jin)屬氧化(hua)物(wu)型(xing)。電(dian)(dian)(dian)(dian)子(zi)鼻(bi)的應(ying)(ying)用(yong)場合(he)包括環境(jing)監(jian)測(ce)、產品質(zhi)量檢測(ce)(如食品、煙草、發酵產品、香(xiang)精(jing)香(xiang)料等)、醫(yi)學(xue)診斷、爆炸物(wu)檢測(ce)等。
電子(zi)(zi)舌(she)(she)是模(mo)(mo)(mo)(mo)擬(ni)人的(de)(de)舌(she)(she)頭對(dui)(dui)(dui)待測(ce)(ce)樣(yang)(yang)品(pin)進(jin)(jin)行(xing)分(fen)(fen)析(xi)、識(shi)(shi)(shi)(shi)(shi)別(bie)(bie)和判斷(duan),用(yong)(yong)(yong)多(duo)元統(tong)(tong)(tong)(tong)計方法對(dui)(dui)(dui)得到的(de)(de)數據(ju)進(jin)(jin)行(xing)處理,快(kuai)速(su)地反映出樣(yang)(yang)品(pin)整(zheng)體(ti)的(de)(de)質量(liang)(liang)信(xin)(xin)息,實現(xian)對(dui)(dui)(dui)樣(yang)(yang)品(pin)的(de)(de)識(shi)(shi)(shi)(shi)(shi)別(bie)(bie)和分(fen)(fen)類。是一種利(li)用(yong)(yong)(yong)多(duo)傳(chuan)感(gan)(gan)(gan)陣(zhen)列(lie)(lie)(lie)為(wei)基礎,感(gan)(gan)(gan)知樣(yang)(yang)品(pin)的(de)(de)整(zheng)體(ti)特(te)征響(xiang)應信(xin)(xin)號(hao),對(dui)(dui)(dui)樣(yang)(yang)品(pin)進(jin)(jin)行(xing)模(mo)(mo)(mo)(mo)擬(ni)識(shi)(shi)(shi)(shi)(shi)別(bie)(bie)和定量(liang)(liang)定性(xing)分(fen)(fen)析(xi)的(de)(de)一種檢(jian)測(ce)(ce)技(ji)術。主要由(you)味覺(jue)(jue)(jue)傳(chuan)感(gan)(gan)(gan)器陣(zhen)列(lie)(lie)(lie)、信(xin)(xin)號(hao)采(cai)集(ji)(ji)系(xi)(xi)統(tong)(tong)(tong)(tong)和模(mo)(mo)(mo)(mo)式(shi)識(shi)(shi)(shi)(shi)(shi)別(bie)(bie)系(xi)(xi)統(tong)(tong)(tong)(tong)3 部分(fen)(fen)組成。電子(zi)(zi)舌(she)(she)是一種利(li)用(yong)(yong)(yong)低選擇性(xing)、非(fei)特(te)異性(xing)、交互敏感(gan)(gan)(gan)的(de)(de)多(duo)傳(chuan)感(gan)(gan)(gan)陣(zhen)列(lie)(lie)(lie)為(wei)基礎,感(gan)(gan)(gan)測(ce)(ce)未知液(ye)體(ti)樣(yang)(yang)品(pin)的(de)(de)整(zheng)體(ti)特(te)征響(xiang)應信(xin)(xin)號(hao),應用(yong)(yong)(yong)化(hua)學計量(liang)(liang)學方法,對(dui)(dui)(dui)樣(yang)(yang)品(pin)進(jin)(jin)行(xing)模(mo)(mo)(mo)(mo)式(shi)識(shi)(shi)(shi)(shi)(shi)別(bie)(bie)和定性(xing)定量(liang)(liang)分(fen)(fen)析(xi)的(de)(de)檢(jian)測(ce)(ce)技(ji)術。電子(zi)(zi)舌(she)(she)主要由(you)味覺(jue)(jue)(jue)傳(chuan)感(gan)(gan)(gan)器陣(zhen)列(lie)(lie)(lie)、信(xin)(xin)號(hao)采(cai)集(ji)(ji)系(xi)(xi)統(tong)(tong)(tong)(tong)和模(mo)(mo)(mo)(mo)式(shi)識(shi)(shi)(shi)(shi)(shi)別(bie)(bie)系(xi)(xi)統(tong)(tong)(tong)(tong)3部分(fen)(fen)組成;味覺(jue)(jue)(jue)傳(chuan)感(gan)(gan)(gan)器陣(zhen)列(lie)(lie)(lie)模(mo)(mo)(mo)(mo)擬(ni)生(sheng)物(wu)系(xi)(xi)統(tong)(tong)(tong)(tong)中的(de)(de)舌(she)(she)頭,對(dui)(dui)(dui)不(bu)同“味道"的(de)(de)被測(ce)(ce)溶(rong)液(ye)進(jin)(jin)行(xing)感(gan)(gan)(gan)應,其主要由(you)味覺(jue)(jue)(jue)傳(chuan)感(gan)(gan)(gan)器陣(zhen)列(lie)(lie)(lie)、信(xin)(xin)號(hao)采(cai)集(ji)(ji)系(xi)(xi)統(tong)(tong)(tong)(tong)和模(mo)(mo)(mo)(mo)式(shi)識(shi)(shi)(shi)(shi)(shi)別(bie)(bie)系(xi)(xi)統(tong)(tong)(tong)(tong)3部分(fen)(fen)組成;信(xin)(xin)號(hao)采(cai)集(ji)(ji)系(xi)(xi)統(tong)(tong)(tong)(tong)模(mo)(mo)(mo)(mo)擬(ni)神經感(gan)(gan)(gan)覺(jue)(jue)(jue)系(xi)(xi)統(tong)(tong)(tong)(tong)采(cai)集(ji)(ji),被激發(fa)的(de)(de)信(xin)(xin)號(hao)傳(chuan)遞到電腦(nao)模(mo)(mo)(mo)(mo)式(shi)識(shi)(shi)(shi)(shi)(shi)別(bie)(bie)系(xi)(xi)統(tong)(tong)(tong)(tong)中;模(mo)(mo)(mo)(mo)式(shi)識(shi)(shi)(shi)(shi)(shi)別(bie)(bie)系(xi)(xi)統(tong)(tong)(tong)(tong)即(ji)發(fa)揮(hui)生(sheng)物(wu)系(xi)(xi)統(tong)(tong)(tong)(tong)中大腦(nao)的(de)(de)作用(yong)(yong)(yong)對(dui)(dui)(dui)信(xin)(xin)號(hao)進(jin)(jin)行(xing)特(te)征提(ti)取(qu),建(jian)立模(mo)(mo)(mo)(mo)式(shi)識(shi)(shi)(shi)(shi)(shi)別(bie)(bie)模(mo)(mo)(mo)(mo)型,并對(dui)(dui)(dui)不(bu)同被測(ce)(ce)溶(rong)液(ye)進(jin)(jin)行(xing)區分(fen)(fen)辨識(shi)(shi)(shi)(shi)(shi)。因此,電子(zi)(zi)舌(she)(she)也稱為(wei)智能味覺(jue)(jue)(jue)仿生(sheng)系(xi)(xi)統(tong)(tong)(tong)(tong),是一類新型的(de)(de)分(fen)(fen)析(xi)檢(jian)測(ce)(ce)儀器。