Promoted formation of pyrazines by targeted precursor addition to improve aroma of thermally processed methionine-glucose Amadori compound

IF 5.4 2区医学 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Biomaterials Science & Engineering Pub Date : 2024-11-13 DOI:10.1016/j.foodchem.2024.142033

Shibin Deng, Heping Cui, Shahzad Hussain, Khizar Hayat, Wei Liu, Xiaoming Zhang, Chi-Tang Ho

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Abstract

The methionine/glucose (Met/Glc) and methionine/glucose-derived Amadori rearrangement product (MG-ARP) models were established to analyze their differences in flavor profiles and aroma potentiality. The principal component analysis revealed the advantage of MG-ARP in the formation of low temperature-induced processing flavor. MG-ARP exhibited superior potential in the rapid formation and high intensity of processed flavor than the Met/Glc except for the inefficiency in pyrazine production. The extra-added Glc tended to react with recovered Met to compete against α-dicarbonyl compounds to suppress the Strecker degradation and pyrazine formation. The additional Met effectively improved the precursor availability and facilitated the conversion of C₆-α-dicarbonyl compounds to short-chained α-dicarbonyl compounds for pyrazine formation rather than their dehydration and cyclization to generate furans. The oxidation of Met favored the nonoxidative carbohydrate degradation leading to MGO formation and the aldolization of dihydropyrazines, which synergistically enriched the varieties of pyrazines, especially for the promoted formation of long-chain substituted pyrazines.

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通过定向添加前体促进吡嗪的形成，改善热加工蛋氨酸-葡萄糖 Amadori 化合物的香气

建立了蛋氨酸/葡萄糖（Met/Glc）和蛋氨酸/葡萄糖衍生阿莫多利重排产物（MG-ARP）模型，以分析它们在风味特征和香味潜力方面的差异。主成分分析表明，MG-ARP 在形成低温诱导的加工风味方面具有优势。与 Met/Glc 相比，MG-ARP 在快速形成高浓度加工风味方面表现出更大的潜力，但吡嗪生成效率较低。额外添加的 Glc 往往会与回收的 Met 发生反应，与 α-二羰基化合物竞争，从而抑制 Strecker 降解和吡嗪的形成。额外添加的 Met 有效地提高了前体的可用性，促进了 C6-α 二羰基化合物向短链 α 二羰基化合物的转化，从而形成吡嗪，而不是脱水和环化生成呋喃。Met 的氧化作用有利于非氧化性碳水化合物降解，导致 MGO 的形成和二氢吡嗪的醛化，从而协同丰富了吡嗪的种类，特别是促进了长链取代吡嗪的形成。

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来源期刊

ACS Biomaterials Science & Engineering Materials Science-Biomaterials

CiteScore

10.30

自引率

3.40%

发文量

413

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