Journal
FOOD CHEMISTRY
Volume 232, Issue -, Pages 595-601Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2017.04.043
Keywords
Maillard reaction products; Brewing; Yeast; GC-MS; Higher alcohols and esters
Funding
- Northumbria University, United Kingdom
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The effect of Maillard reaction products (MRPs), formed during the production of dark malts, on the synthesis of higher alcohols and esters in beer fermentations was investigated by headspace solid-phase microextraction GC-MS. Higher alcohol levels were significantly (p < 0.05) higher in dark malt fermentations, while the synthesis of esters was inhibited, due to possible suppression of enzyme activity and/or gene expression linked to ester synthesis. Yeast strain also affected flavour synthesis with Saccharomyces cerevisiae strain A01 producing considerably lower levels of higher alcohols and esters than S288c and L04. S288c produced approximately double the higher alcohol levels and around twenty times more esters compared to L04. Further investigations into malt type-yeast strain interactions in relation to flavour development are required to gain better understanding of flavour synthesis that could assist in the development of new products and reduce R&D costs for the industry. (C) 2017 Elsevier Ltd. All rights reserved.
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