頁籤選單縮合
題 名 | 利用TTI監控冷藏鮮乳品質之技術=Use of TTI as Quality Monitor for Pasteurized Milk |
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作 者 | 郁凱衡; 張炳揚; | 書刊名 | 食品科學 |
卷 期 | 23:5 1996.10[民85.10] |
頁 次 | 頁681-692 |
分類號 | 473.7 |
關鍵詞 | 冷藏鮮乳; 高品質貯存壽命; 時間-溫度指示標籤; 品質監控; Pasteurizated milk; High quality life; HQL; Time-temperature indicators; TTIs; Quality monitoring; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究係採用美國 LifeLine 公司生產之化學式時間-溫度指示標籤 (Time-Temperature indicator,簡稱TTI,型號為 A-11)探討其在冷藏鮮乳品質監控的應用技術。以高品質貯存壽命 (High Quality Life,簡稱HQL)作為冷藏鮮乳的品質指標,發現冷藏鮮乳之HQL與冷藏溫度間之量化關係係遵循 Arrhenius 模式: Log(□)=19.96-5832.76(□),r2=o.93(273<T<303),Ea=26.69kcal/mole 透過動力學的評估及起始點和終點的測試發現TTI具有良好的一致性 (即起始點色澤差之變異係數小於5.31%)。並將實際貼附在鮮乳TTI上進行變溫品質監控,結果TTI的變色確實在鮮乳 HQL 之前且誤差率僅相差 6.70%,顯示 TTI 具有相當的可靠性,可被推薦用來監控冷藏鮮乳的品質。 |
英文摘要 | Time-temperature indicators (TTIs) from LifeLines Technology Co. of USA were evaluated and tested for quality monitoring of pasteurized milk during chill storage. The high quality storage life (HQL) of the pasteurized milk was used as quality index and the Arrhenius type equation between the quality index and temperature was established as follows: Log(□)=19.96-5832.76(□),r2=o.93(273<T<303),Ea=26.69kcal/mole The selected TTIs used for tests were found to have an acceptable homogeneity (c.v.≦5.31% for the variation of reflectance at starting point) and a good reliability (time to reach end point of TTI was 6.700o/ ahead of HQL) for the application of quality monitoring of pasteurized milk. |
本系統中英文摘要資訊取自各篇刊載內容。