| Title: | Investigation of low molecular weight peptides (<1 kDa) in chicken meat and their contribution to meat flavor formation |
| Author(s): | Zhou R; Grant J; Goldberg EM; Ryland D; Aliani M; |
| Address: | "Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Canada. The Canadian Centre for Agri-Food Research in Health and Medicine (CCARM), St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, Canada" |
| ISSN/ISBN: | 1097-0010 (Electronic) 0022-5142 (Linking) |
| Abstract: | "BACKGROUND: Low molecular weight peptides (LMWPs) (<1 kDa) generated in meat during chilled conditioning can act as flavor precursors in the Maillard reaction with a potential contribution to key volatile organic compound (VOC) formation upon heating. Liquid chromatography/quadrupole time-of-flight mass spectrometry (LC/QTOF-MS) successfully detected 44 LMWPs in chicken breast and thigh muscles stored at 4 degrees C for up to 6 days. Carnosine (350 mg per 100 g), glutathione (GSH, 20 mg per 100 g) (concentrations based on reported values in the literature) and cysteine glycine (Cys Gly, 5 mg per 100 g) (concentration based on results from LC/QTOF-MS) were used in model systems containing ribose (25 mg per 100 g). The three model systems were heated at 180 degrees C for 2 h at pH 6.3. VOCs were measured by simultaneous distillation solvent extraction/gas chromatography/mass spectrometry. RESULTS: Of 33 VOCs detected, 26 were significantly different (P |
| Keywords: | Animals Cattle Chickens Cooking Flavoring Agents/*chemistry Gas Chromatography-Mass Spectrometry Hot Temperature Humans Maillard Reaction Meat/*analysis Molecular Weight Peptides/*chemistry Taste Volatile Organic Compounds/chemistry chicken flavor precurs; |
| Notes: | "MedlineZhou, Ruiyin Grant, Jennifer Goldberg, Erin M Ryland, Donna Aliani, Michel eng Discovery Grant/Natural Sciences and Engineering Research Council of Canada/ England 2018/09/19 J Sci Food Agric. 2019 Mar 15; 99(4):1728-1739. doi: 10.1002/jsfa.9362. Epub 2018 Oct 30" |
