کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1188081 | 963480 | 2009 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Identification and Maillard reaction activities of dilauryl mannose isomers formed during lipase-catalyzed condensation Identification and Maillard reaction activities of dilauryl mannose isomers formed during lipase-catalyzed condensation](/preview/png/1188081.png)
Lauryl mannoses were synthesized by lipase-catalyzed condensation using d-mannose and lauric acid in acetone in the presence of molecular sieves at 50 °C. 6-O-Lauryl mannose, 1,6-di-O-lauryl mannose, 3,6-di-O-lauryl mannose, and 4,6-di-O-lauryl mannose were isolated and identified by FT-IR, MS, and NMR.Maillard reaction activities of mannose with l-cysteine and lauryl mannoses with l-cysteine were evaluated by headspace solid phase microextraction (HS-SPME) method combined with GC/MS. 1,6-Di-O-lauryl mannose exhibited the lowest Maillard reaction activity, compared with 6-O-lauryl mannose, 3,6-di-O-lauryl mannose and 4,6-di-O-lauryl mannose. Low activity of Maillard reaction by lauryl mannoses compared to that by mannose was due to the structures of mannose and lauryl mannoses determined by NMR analysis.
Journal: Food Chemistry - Volume 112, Issue 2, 15 January 2009, Pages 421–427