本文選題：紅外光譜 + 中紅外區(qū)��； 參考：《河南工業(yè)大學(xué)》2016年碩士論文

【摘要】：酸價(jià)、碘價(jià)以及過(guò)氧化值能夠比較直觀的表達(dá)出油脂的品質(zhì)好壞,各種檢測(cè)油脂品質(zhì)的方法層出不窮,化學(xué)方法已經(jīng)逐漸被淘汰,使用儀器進(jìn)行油脂檢測(cè)的方法在近年研究進(jìn)展比較大,其中紅外光譜法都是使用近紅外光譜。仍然不能滿足快速、大量、簡(jiǎn)易的油脂樣品檢測(cè)需求。本文先闡述各種方法對(duì)油脂樣品進(jìn)行檢測(cè)酸價(jià)、碘價(jià)、過(guò)氧化值的研究方向及研究進(jìn)展,以及近紅外光譜檢測(cè)油脂組分的研究進(jìn)展,本文通過(guò)紅外光譜的中紅外區(qū)(4000~200cm-1)對(duì)樣品進(jìn)行檢測(cè),樣品無(wú)需前處理,檢測(cè)速度快,操作簡(jiǎn)單,準(zhǔn)確度高。實(shí)驗(yàn)通過(guò)紅外光譜的中紅外區(qū)以及紫外光譜檢測(cè)油脂樣品,將所得數(shù)據(jù)與標(biāo)準(zhǔn)樣數(shù)據(jù)對(duì)比,以及通過(guò)氣相色譜得到的數(shù)據(jù)以及標(biāo)準(zhǔn)數(shù)據(jù)做對(duì)比,線性擬合得到酸價(jià)、碘價(jià)及過(guò)氧化值的標(biāo)準(zhǔn)曲線,利用該曲線對(duì)油脂的酸價(jià)、碘價(jià)以及過(guò)氧化值進(jìn)行預(yù)測(cè),花生油、菜籽油、棕櫚油和混合油樣4個(gè)模型的酸價(jià)預(yù)測(cè)值與滴定法測(cè)得的實(shí)際酸價(jià)之間的線性相關(guān)系數(shù)R2分別為:0.9691、0.9585、0.7529、0.9072�；ㄉ�、菜籽油、及大豆油和花生油的混合油3個(gè)模型的碘價(jià)預(yù)測(cè)值與化學(xué)滴定法測(cè)得的實(shí)際碘價(jià)之間線性相關(guān)系數(shù)R2分別為:0.8291、0.7853、0.9198。結(jié)果表明,預(yù)測(cè)得到的數(shù)值與實(shí)際通過(guò)滴定法測(cè)得的油脂酸價(jià)、碘價(jià)以及過(guò)氧化值有良好的線性關(guān)系。其中碘價(jià)的測(cè)定采用油脂的CCl4溶液進(jìn)行紅外光譜掃描,打破了以往利用涂膜法測(cè)定油脂相關(guān)參數(shù)的慣例。
[Abstract]:Acid value, iodine value and peroxide value can directly express the quality of oil. Various methods for detecting the quality of oil have emerged one after another, and chemical methods have been gradually eliminated. In recent years, the method of oil detection by instrument has made great progress, among which the near infrared spectrum is used in infrared spectroscopy. Still unable to meet the rapid, large quantity, simple oil sample detection requirements. This paper first describes the research direction and progress of various methods for the determination of acid value, iodine value, peroxide value of oil samples, and the research progress of near-infrared spectroscopy for the determination of oil components. In this paper, the samples were detected in the middle infrared region (200cm-1) of IR spectrum. The samples need no pretreatment, the detection speed is fast, the operation is simple, and the accuracy is high. In the experiment, the oil samples were detected in the middle infrared region and ultraviolet spectrum of the infrared spectrum. The acid value was obtained by linear fitting by comparing the obtained data with the standard sample data and the gas chromatographic data and the standard data. The standard curve of iodine value and peroxide value, using this curve to predict acid value, iodine value and peroxide value of oil, peanut oil, rapeseed oil, The linear correlation coefficient R2 between the predicted value of acid price of palm oil and mixed oil sample and the actual acid value measured by titration is 0. 0. 9691 ~ 0. 958 5 ~ 0. 7529 and 0. 9072, respectively. The linear correlation coefficient between the predicted iodine price of peanut oil, rapeseed oil, soybean oil and peanut oil mixed oil and the actual iodine price determined by chemical titration is R ~ 2 = 0.7850.9198, respectively. The results show that there is a good linear relationship between the predicted value and the acid value, iodine value and peroxide value of oil and fat measured by titration. The iodine valence was determined by CCl4 solution of oil and fat by infrared spectrum scanning, which broke the usual practice of using coating method to determine the parameters of oil and fat.
【學(xué)位授予單位】：河南工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：O657.33;TS227

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 楊志成;潘丹杰;葉沁;唐宏剛;肖朝耿;;ATR/FTIR結(jié)合PLSR同時(shí)測(cè)定酸價(jià)、過(guò)氧化值及碘價(jià)的研究[J];浙江農(nóng)業(yè)科學(xué);2015年06期

2 高媛;王寧;于修燭;陳秀梅;;基于傅里葉近紅外光譜的食用油過(guò)氧化值間接檢測(cè)研究[J];中國(guó)糧油學(xué)報(bào);2015年05期

3 鄒良明;;可見(jiàn)光譜法直接測(cè)定油脂碘值[J];糧食與油脂;2015年04期

4 張嚴(yán);謝巖黎;孫淑敏;;近紅外光譜結(jié)合化學(xué)計(jì)量學(xué)方法在油脂檢測(cè)中的應(yīng)用[J];糧食與油脂;2015年01期

5 楊麗;紀(jì)東彬;薛敦輝;陳蓉;杜虹穎;盧瑋彤;關(guān)杏彬;高靜雯;;食用油脂碘值快速測(cè)定方法探究[J];糧油食品科技;2014年02期

6 程欲曉;咸洋;馬騰洲;周宇艷;茅曄輝;;動(dòng)植物油脂種類鑒別及其碘值測(cè)定的近紅外光譜方法[J];理化檢驗(yàn)(化學(xué)分冊(cè));2013年12期

7 吳曉紅;程欲曉;楊勇;周宇艷;馬騰洲;張琳;;近紅外光譜法快速測(cè)定動(dòng)植物油脂中游離脂肪酸含量[J];理化檢驗(yàn)(化學(xué)分冊(cè));2013年09期

8 秦小園;張建新;于修燭;李清華;許春瑾;;紫外光譜法檢測(cè)食用油過(guò)氧化值[J];食品科學(xué);2013年12期

9 張榮華;陳瑤;;食用油脂過(guò)氧化值檢測(cè)方法的研究[J];糧食與食品工業(yè);2012年06期

10 于修燭;張靜亞;李清華;許春瑾;高錦明;;基于近紅外光譜的食用油酸價(jià)和過(guò)氧化值自動(dòng)化檢測(cè)[J];農(nóng)業(yè)機(jī)械學(xué)報(bào);2012年09期

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