X 光粉末繞射技術於奶粉中奈米鈣化合物之結構鑑定   全文下載

Structural Identification of Nano-Calcium Compounds in Milk Powder by X-Ray Powder Diffraction

本研究透過市售添加奈米鈣之奶粉，利用粉末X光繞射儀來取得奈米食品中奈米鈣添加物之X光繞射譜圖，判定其奈米食品中奈米鈣化合物之結晶結構與晶粒平均晶粒大小。由研究顯示，這些添加奈米鈣之奶粉，經加工後，不但鈣結晶結構有所轉移，亦會產生部分之異相氧化物或結晶水型態之結構。本研究團隊成功地以X光粉末繞射技術建立對奈米鈣添加於奶粉中之結構鑑定技術平台，可有效的進行奈米食品之結構變異辨識，亦可作為奈米添加物在加工後穩定度上之判定依據。

X-ray diffraction patterns of nano-calcium in milk samples obtained from market, to determine their crystal structures and average grain size. The results indicated that after processing, nano-calcium in milk powders not only prompt the transformation of crystal structure, but also partially generate oxide structures or even hydrated structures known as the hetero-phase. The methodology of using X-ray powder diffraction for the structural identification of nano-calcium compounds in milk powders has been successfully established in this study. This methodology can be applied to characterize the compounds and reveal the stability of the nano-scale additives in nano-food technology.