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頁籤選單縮合
題名 | 不同修飾方法對澱粉消化率之影響=Effects of Different Modified Methods on Starch Digestibility |
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作者 | 張欽宏; 鄭怡姍; 蕭東昇; 黃萱斐; 陳秀雯; 吳景陽; | 書刊名 | 臺灣農業化學與食品科學 |
卷期 | 52:2/3 2014.04-06[民103.04-06] |
頁次 | 頁87-94 |
分類號 | 346.217 |
關鍵詞 | 抗解澱粉; 消化率; 香蕉澱粉; 豌豆澱粉; 醋酸酐; Resistant starch; Digestibility; Banana starch; Pea starch; Acetic anhydride; |
語文 | 中文(Chinese) |
中文摘要 | 本試驗是以酵素及化學修飾法製備抗解澱粉,期望降低其產品之體外消化率。四種天然澱粉中之抗解澱粉含量,以馬鈴薯澱粉的52.5%最高,其次依序為香蕉澱粉45.4%,豌豆澱粉2.4%,小麥澱粉0.9%。此四種澱粉利用去支鏈酵素(Pullulanase)處理後,可得20-35個葡萄糖單位之抗解澱粉,其抗解澱粉含量以豌豆澱粉30.3%為最高。以10%醋酸酐(Acetic anhydride, AA)修飾製備之抗解澱粉,對於降低其體外消化率有較好的效果,可降低28-34%,另於C57BL/6小鼠之食用後兩小時血糖變化試驗中,以10%醋酸酐修飾製備之豌豆澱粉,具有顯著降低血糖的效果。 |
英文摘要 | The major purpose of this study was to develop a method for preparing resistant starch by enzyme debranching treatment and chemical modification for reducing its in vitro digestibility. The resistant starch contents of potato, banana, pea and wheat starch were 52.5%, 45.4%, 2.4% and 0.9%, respectively. The number-average degree of polymerization of debranched starch by pullulanase was from 20 to 35. In determination of the resistant starch content from debranched starch, pea starch showed the highest (30.3%). The four resistant starch chemically modified with 10% acetic anhydride exhibited better effect on the in vitro digestibility, which was decreased by 28 to 34%. The blood glucose test indicates pea starch modified with 10% acetic anhydride lowered more blood glucose than control after intake 2 hours by evaluation in a C57BL/6 male mice model. |
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