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頁籤選單縮合
題 名 | 利用反應曲面法探討功能性代糖的組合對高壓下高甲氧基果膠凝膠作用的影響=Studies of Effects of the Combination of Functional Sugar Substitutes on the Gelation of High-Methoxyl Pectin under High Pressure Using Response Surface Methodology |
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作 者 | 金安兒; 曾政鴻; | 書刊名 | 中國醫藥科學雜誌 |
卷 期 | 2:1 2001.03[民90.03] |
頁 次 | 頁47-59 |
分類號 | 411.38 |
關鍵詞 | 反應曲面法; 高甲氧基果膠; 凝膠; 功能性代糖; 質地輪廓分析; 高靜水壓; Response surface methodology; High-methoxyl pectin; Gel; Functional sugar substitute; Texture profile analysis; High hydrostatic pressure; |
語 文 | 中文(Chinese) |
中文摘要 | 低糖食品為目前的流行趨勢, 傳統的高甲氧基果膠凝膠製品中所使用 的蔗糖濃度必須高達55%以上, 才會得到良好的高甲氧基果膠凝膠; 由於含糖量 甚高, 因此本研究嘗試採用山梨醇、木糖醇等功能性代糖作為共溶質來取代蔗糖, 利用高壓配合代糖與檸檬酸濃度的操作, 以探討不同功能性代糖與檸檬酸的濃 度條件組合, 對高甲氧基果膠凝膠作用的影響。實驗採反 應曲面法(response surface methodology)之三變數、三層階(three variable-three level)設計, 三變數採用檸 檬酸濃度(0.02∼0.08 M)、山梨醇濃度(28∼34%)及木糖醇濃度(28∼34%), 反應性 狀則採 Hunter L, a, b值、凝膠強度、水活性與各種質地輪廓分析(texture profile analysis)值。由所得之結果發現, 在壓力4,000 atm時, 取檸檬酸濃度0.04 M及山 梨醇濃度30.2%與木糖醇濃度34.0%的 條件組合, 可以達到高甲氧基果膠凝膠的 最適當加工條件。由 此三條件之組合(0.04 M, 30.2%, 34.0%)進行驗證試驗, 以評 估所得模式之適當性時, 發現實驗值與模式估算值間p < 0.05, 代表二者間不具 顯著性差異。結果顯示藉由檸檬酸與兩種代糖之最 適濃度組合, 可使高甲氧基 果膠形成合適的凝膠。 |
英文摘要 | Consumption of low sugar foods has been a popular trend in the modern society. The sucrose concentration in the traditional high-metho-xyl pectin gelation products is however normally over 55% to obtain gelation of high-methoxyl pectin. In order to improve the defect of high sucrose level contained in the traditional gel products, high pressure-induced high-methoxyl pectin gelation was studied by using the combi- nation of functional sugar substitutes such as sorbitol, xylitol, to substitute for sucrose as the co-solutes, and the method of three variable-three level designed response surface methodology was applied. Process vari- ables included citric acid concentration (0.02 - 0.08 M), sorbitol concen- tration (28 - 34%), and xylitol concentration (28 - 34%), and the response variables were Hunter L, a, b values, gel strength, water activity and results from TPA (texture profile analysis). Results showed the optimized high pressure-induced high-methoxyl gel could be obtained by the combination of 0.04 M citric acid, 30.2% sorbitol and 34.0% xylitol under 4,000 atm. Adequacy of the model functions were verified by conducting t-test on the predicted and the experimental values, which came out p < 0.05. |
本系統中英文摘要資訊取自各篇刊載內容。