Properties of damaged starch granules. III. Microscopy and particle size analysis of undamaged granules and remnants
Properties of damaged starch granules. III. Microscopy and particle size analysis of undamaged granules and remnants
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DOI：
10.1006/jcrs.1994.1045
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发表时间：
1994-07
影响因子：
3.8
通讯作者：
R. Tester;W. R. Morrison;M. Gidley;M. Kirkland;J. Karkalas
中科院分区：
文献类型：
--
作者：
R. Tester;W. R. Morrison;M. Gidley;M. Kirkland;J. Karkalas
将小麦和玉米淀粉球磨以获得不同水平的受损淀粉，其易于用真菌α-淀粉酶消化。未受损部分包括幸存的天然淀粉颗粒（N）和已部分受损的较大颗粒的双折射残余物（R）。扫描电子显微镜的更多损坏的样品表明，N材料仅由中型和大型颗粒，而R材料是中空的壳的中型到大型颗粒或小的不规则碎片。粒度分析证实，小麦淀粉中的小B-颗粒比大颗粒更容易被完全破坏。
Wheat and maize starches were ball milled to obtained various levels of damaged starch, which was readily digested with fungal alpha-amylase. The undamaged portion comprised surviving native starch granules (N) and birefringent remnants (R) of larger granules that had been partially damaged. Scanning electron microscopy of the more damaged samples showed that N material consisted of only medium- and larger-sized granules, while R material was either hollow shells of medium to larger granules or small irregular fragments. Particle size analysis confirmed that small B-granules in wheat starch were more likely to be completely damaged than large granules.