文化大學機構典藏 CCUR:Item 987654321/32153
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    Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/32153


    Title: Physicochemical properties of starches and expression and activity of starch biosynthesis-related genes in sweet potatoes
    Authors: Lai, Yung C.
    Wang, Shu Y.
    Gao, Huan Y.
    Nguyen, Khiem M.
    Nguyen, Chinh H.
    Shih, Ming C.
    Lin, Kuan H.
    Contributors: 生科所
    Keywords: Sweet potato starch
    Amylose content
    Gelatinization
    Pasting
    Starch-biosynthesis enzyme
    Date: 2016-05-15
    Issue Date: 2016-03-11 13:40:30 (UTC+8)
    Abstract: The functional properties of starches from six sweet potato varieties containing various starch components and structures were studied in an attempt to identify starch sources for industrial uses. Tainan 18 (TNN18) with high-amylose (AM) starch exhibited high setback and breakdown viscosities, high water solubility at 85 degrees C but low swelling volume at 65 degrees C, and high hardness and adhesiveness; in contrast, the low-AM starch of Tainung 31 (TNG31) had opposite characteristics. Seven genes related to starch biosynthesis were tested, and GBSS, SS, SBEII, ISA, and AGPase were highly expressed in TNN18 and TNG31; however, transcript levels in DBE and SBE were extremely low. GBSS and SS activity reflected the abundance of GBSS and SS mRNA in TNG31 and TNN18, and expression of AGPase, GBSS, SS, and SBE in TNN18 substantially increased content of AM. The expression and activity of DBE had a significant effect on TNG31 with increased AP content. (C) 2015 Elsevier Ltd. All rights reserved.
    Relation: FOOD CHEMISTRY 卷: 199 頁碼: 556-564
    Appears in Collections:[Graduate Institute of Biotechnology ] journal articles

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