Affiliation:
1. Engineering Center of New Tobacco Product, China Tobacco Hubei Industrial Co, Ltd Wuhan ，430040 PR China
2. School of Power & Mechanical Engineering, Wuhan University Wuhan 430072 PR China
3. School of Materials Science and Engineering, Hubei University Wuhan 430060 PR China
Abstract
AbstractThis paper prepared alpha‐D‐glucopryanose/alpha‐L‐Alanine Maillard intermediates in acid or basic catalyst (labelled as G&A‐MIa and G&A‐MIb) with different molecular weights. ZSM‐5 greatly affected their pyrolysis behaviors. After ZSM‐5 added, the endothermal or mass loss peaks for both G&A‐MIa and G&A‐MIb decreased to lower temperature with different extents. For an instance, endothermal peaks of G&A‐MIb‐2000 at 647°C decreased to 614°C, and its mass loss peak at 167.3°C decreased to 147.0°C. Their pyrolysis under N2 atmosphere or 90%N2 + 10%O2 presented that additional of ZSM‐5 obviously enhanced the generation of volatiles, especially 4H‐Pyran‐4‐one, 2,3‐dihydr o‐3,5‐dihydroxy‐6‐methyl (PODDM). We assigned the ZSM‐5 influence to its sensitivity on C‐N and C‐O bonds among MIs. DPPH (1,1‐diphenyl‐2‐picrylhydrazyl) radical scavenging by volatile absorption solution confirmed that ZSM‐5 obviously improved the antioxidant activity. This would be good news because application of ceramic cookers contains similar components to ZSM‐5.