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ÇóÖú¾«È·µÄ·­Ò룺ÑùÆ·AÖеÄ771 cm-1ÎüÊÕ·åÊÇÑùÆ·AËùº¬µÄ¶àÖÖÌÇÀàÔÚË®½âǰµÄ»ìºÏµþ¼ÓÆ×·å£¬ÑùÆ·¼ÓÈȺóÀ¶ÒƵ½775 cm-1ÎüÊշ壬ÎÄÏ×±¨µÀÑùÆ·AÖÐËùº¬µÄÌÇÀàË®½âËùµÃµ½µÄ¹ûÌÇÄܹ»Óë°±»ùËá·´Ó¦³ÉºÚÌÇËØ£¬Ê¹µÃÑùÆ·A¼ÓÈȺó±äºÚ.

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xiaoyu1120: ½ð±Ò+10, ·­ÒëEPI+1 2013-06-23 17:49:57
The peak at 771 cm-1 is a combinative contribution from the various glycosides in Sample A before hydrolyzing, which has a red shift to 775 cm-1 after heating. It¡¯s reported that the fructose hydrolyzed from the glycosides in Sample A can react with amino acids and produce nigerose, which makes the sample turn black after heating.
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