頁籤選單縮合
題 名 | 以近紅外線分光光度計偵測整粒稻穀脂肪酸度含量=Determining the Fat Acidity of Rough Rice by Near-Infrared Reflectance Spectroscopy |
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作 者 | 李汪盛; 蕭介宗; | 書刊名 | 桃園區農業改良場研究報告 |
卷 期 | 35 1998.12[民87.12] |
頁 次 | 頁11-22 |
分類號 | 434.113 |
關鍵詞 | 近紅外線分光光度計; 稻穀; 脂肪酸度; Near-infrared reflectance spectroscopy; Fat acidity; Rough rice; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究重點在利用近紅外線分光光度計偵測整粒稻穀脂肪酸度含量,稻穀含水率為13%,穀溫為25℃利用部份最小平方法所建立之整粒稻穀脂肪酸度含量校正線,驗證樣本之判定係數(r2val)為0.87,驗證標準偏差(SEP)為0.83mg KOH/100g乾物質。粉碎稻穀脂肪酸度含量校正線,驗證樣本之判定係數(r2val)為0.94,驗證標準偏差(SEP)為0.73mgKOH/100g乾物質。當穀溫由10℃變化至40℃,穀溫對於稻穀脂肪酸度含量校正線之影響為穀溫每上升l℃脂肪酸度預測值將增加0.24mgKOH/100g乾物質。 |
英文摘要 | Near-infrared reflectance spectroscopy (NIRS)was used to develop calibration curves for determining the fat acidity of whole-kernel and ground rough rice with 13%moisture content at 25℃. Partial-least-squares regression (PLSR) uses the optimal calibration curve for whole-kernel rough rice to measure the coefficient of determination of validation (r2val) and standard error of prediction (SEP) of 0.87 and 0.83 mg of KOH/100g of dry matter respectively. However the optimal calibration curve for ground rough rice has a higher of validation (r2val) and lower SEP of 0.94 and 0.73 mg of KOH/100g of dry matter respectively. From 10 to 40℃the temperature effect causes an increase of 0.24 mg of KOH/100g of dry matter/℃ in the predicted fat acidity of whole-kernel rough rice. |
本系統中英文摘要資訊取自各篇刊載內容。