Adams Christopher J, Manley-Harris Merilyn, Molan Peter C
Chemistry Department, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand.
Carbohydr Res. 2009 May 26;344(8):1050-3. doi: 10.1016/j.carres.2009.03.020. Epub 2009 Mar 21.
Methylglyoxal in New Zealand manuka honey has been shown to originate from dihydroxyacetone, which is present in the nectar of manuka flowers in varying amounts. Manuka honey, which was freshly produced by bees, contained low levels of methylglyoxal and high levels of dihydroxyacetone. Storage of these honeys at 37 degrees C led to a decrease in the dihydroxyacetone content and a related increase in methylglyoxal. Addition of dihydroxyacetone to clover honey followed by incubation resulted in methylglyoxal levels similar to those found in manuka honey. Nectar washed from manuka flowers contained high levels of dihydroxyacetone and no detectable methylglyoxal.
新西兰麦卢卡蜂蜜中的甲基乙二醛已被证明源自二羟基丙酮，其在麦卢卡花蜜中的含量各不相同。蜜蜂新生产的麦卢卡蜂蜜中甲基乙二醛含量低，二羟基丙酮含量高。将这些蜂蜜在37摄氏度下储存会导致二羟基丙酮含量降低，甲基乙二醛含量相应增加。在三叶草蜂蜜中添加二羟基丙酮并孵育后，甲基乙二醛水平与麦卢卡蜂蜜中的水平相似。从麦卢卡花上冲洗下来的花蜜中二羟基丙酮含量高，未检测到甲基乙二醛。
