頁籤選單縮合
題 名 | Evaluation on Quality Indices and Retained Tocopherol Contents in the Production of the Rice-Based Cereal by Extrusion=擠壓米產品之品質指標及生育醇含量評估 |
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作 者 | 林苑暉; 葉佳聖; 盧訓; | 書刊名 | 藥物食品分析 |
卷 期 | 10:3 2002.09[民91.09] |
頁 次 | 頁183-187 |
分類號 | 473.12 |
關鍵詞 | 糙米; 精白米; 雙軸擠壓機; 理化特性; Brown rice; Milled rice; Twin-screw extruder; Physicochemical properties; |
語 文 | 英文(English) |
中文摘要 | 米糠是糙米的最外層含有豐富的維生素E、膳食纖維、礦物質及油脂,本研究即利用糙米或精白米為主原料,經由雙軸擠壓機製造膨發休閒食品,其原料水分分別為15及20%,螺軸轉速為200及250 rpm,進行探討產品理化特性以求得最適加工條件,並進一步分析生育醇之殘存量。結果顯示,含糙米之擠壓食品在顏色分析上有較高之a、b值,膨發度及溶解度亦較由精白米製造之擠壓食品高;相反的,L值、表密度及吸水性指標則較低,且由糙米製造得到之擠壓食品有較高之α-及γ-生育醇含量(4.8及5.7μg/g)。由15%原料水分及250rpm螺軸轉速會得到膨發度與溶解度較高及表密度較低之產品。 |
英文摘要 | Rice bran is rich in vitamin E, dietary fiber, mineral and fat. In this study, puffed rice ball was made from brown or milled rice flour by using twin-screw extruder. Two feed moisture (15 and 20%) and two screw speed (200 and 250 rpm) were set, and the physicochemical properties and content of -, -, -, and -tocopherols were determined. The data showed that extrudates made from brown rice had a high a and b value in color, expansion ratio, water solubility index, but low in L value, bulk density and water absorption index than that made from milled rice flour. Extrudates made from brown rice flour had the higher content of - and - tocopherols (4.8 and 5.7 μg/g). Regarding the effects of feed moisture and screw speed of extruder, the data showed that 15% feed moisture in flour and 250 rpm screw speed yielded to a high expansion ratio, high water solubility index, and low bulk density in the final products. |
本系統中英文摘要資訊取自各篇刊載內容。