1·The structures of these compounds were determined as friedelin(1), 5 hydroxymethyl furaldehyde(2), limonin(3), nomilin(4), daucosterol(5)by spectral methods.
经光谱数据的分析,分别鉴定为木栓酮(1)、5 羟甲基糠醛(2 )、柠檬苦素(3)、闹米林(4 )及胡萝卜苷(5 ) 。
2·The formation, measurement of 2 furaldehyde and 5 hydroxymethyl 2 furaldehyde in date and their influences on the dry date were discussed.
还讨论了红枣中糠醛和5羟甲基呋喃甲醛的形成、测定及其对干枣品质的影响。