酸解马铃薯淀粉-油酸复合物的制备
Preparation of acid-hydrolyzed potato starch-oleic acid complex
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摘要: 以酸解马铃薯淀粉和油酸为原料制备酸解马铃薯淀粉-油酸复合物,运用X-射线衍射(X-RD)技术探讨了淀粉酸解时间、原料配比和淀粉浓度对复合物结晶的影响.结果表明:酸解马铃薯淀粉-油酸复合物为V-型结构,随着酸解时间的延长和原料配比的增大,衍射峰的强度越来越大,复合物的结晶结构越来越完整,但相互之间结晶度变化不明显,当原料浓度为2%时,所形成的复合物的结晶度最高,约为82.23%.
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关键词:
- 酸解马铃薯淀粉-油酸复合物 /
- X-射线衍射 /
- 复合物结晶
Abstract: The acid-hydrolyzed potato starch-oleic acid complex were prepared by using acid-hydrolyzed potato starch and oleic-acid.X-ray diffraction is used to investigate respectively effects of acid-hyrolyzed time,ligands ratio and starch concentration conditions.The results showed that acid-hydrolyzed potato starch-oleic acid is V-type,with extending acid hydrolyzed time and increasing ligands ratio,diffraction peak intensity increases and complex crystalline structure is more and more complete,but crystallinity does not change significantly.When raw material concentration is 2%,the crystallinity of the formed complex is approximately highest and about 82.23%.
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