non-reducing       
adjective [ before noun ]  chemistry specialized (also nonreducing) uk/ˌnɒn.rɪˈdʒuː.sɪŋ/ us/ˌnɑːn.rɪˈduː.sɪŋ/
 非还原的
not adding one or more electrons to another substance
  Non-reducing sugars are less harmful to cells and tissues than other sugars. 非还原糖对细胞和组织的危害比其他糖类小。 
 We tested for the presence of the acid under non-reducing conditions.
 - More examples
 - You need a large amount of non-reducing sugars so that the protein becomes stabilized.
 - Proteins from the cells were separated under non-reducing conditions.
 - You must test the filtered liquid for non-reducing sugar.
 - Sucrose is a nonreducing sugar made up of glucose and fructose.