E-sensing coupled metabolomics unravels flavor-texture synergy in citric acid-thermally processed pink Auricularia cornea

IF 9.8 1区农林科学 Q1 CHEMISTRY, APPLIED

Food Chemistry Pub Date : 2025-10-22 DOI:10.1016/j.foodchem.2025.146789

Lei Ye , Ting Wu , Li Chen , Zhengzhu Huang , Xuezhen Yang , Yu Huang , Qing Tian , Bo Zhang , Yuntao Liu , Xiaolin Li

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Abstract

An integrative approach combining e-sensing, metabolomics, and physicochemical profiling revealed the effects of citric acid and thermal processing on flavor-texture synergy in pink Auricularia cornea. Heating at 100 °C with 1.5 g/L citric acid for 8 min effectively stabilized color, with a 21.8 % reduction in ΔE*. Texture analysis revealed a biphasic recovery phenomenon: short-term heating (2 min) resulted in a softened texture with a 43 % reduction in hardness. Volatile compound profiling identified the 6-min processing interval as a critical window for optimizing ester synthesis (increased by 70 %) and aldehyde degradation (decreased by 60 %), processes driven by Maillard reactions and lipid oxidation. Targeted profiling of amino acid metabolites revealed a significant depletion of glutamate (74.6 %) under prolonged heating conditions, accompanied by a 12.7-fold accumulation of citrulline. KEGG pathway analysis highlighted heat stress-responsive modules, including ABC transporters, secondary metabolism pathways, and antioxidant defense mechanisms such as glutathione synthesis.

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电子传感耦合代谢组学揭示了柠檬酸热处理的粉红色木耳角膜的风味-质地协同作用

一项结合电子传感、代谢组学和理化分析的综合方法揭示了柠檬酸和热处理对粉红木耳角膜风味-质地协同作用的影响。用1.5 g/L柠檬酸在100°C下加热8分钟，有效地稳定了颜色，ΔE*减少了21.8%。织构分析揭示了双相恢复现象：短期加热（2分钟）导致织构软化，硬度降低43%。挥发性化合物分析发现，6分钟的处理间隔是优化酯合成（增加70%）和醛降解（减少60%）的关键窗口，这些过程由美拉德反应和脂质氧化驱动。氨基酸代谢物的目标分析显示，在长时间加热条件下，谷氨酸显著耗竭（74.6%），同时瓜氨酸积累12.7倍。KEGG通路分析强调热应激响应模块，包括ABC转运蛋白、次级代谢途径和谷胱甘肽合成等抗氧化防御机制。

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来源期刊

Food Chemistry 工程技术-食品科技

CiteScore

16.30

自引率

10.20%

发文量

3130

审稿时长

122 days

期刊介绍： Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.