Fire biomarkers (levoglucosan, mannosan, and galactosan) recorded in the deep Denali, AK ice core from ~360 to 2013 CE

Monosaccharide anhydrides (MAs), or anhydrosugars which include levoglucosan, mannosan, and galactosan are combustion products of cellulose and hemicellulose that are...单糖酐（Monosaccharide Anhydrides，缩写MAs），即包含左旋葡聚糖（levoglucosan）、甘露糖酐（mannosan）与半乳糖酐（galactosan）的脱水糖，是纤维素与半纤维素的燃烧产物……