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Flexible control of bigel microstructure for enhanced stability and flavor release during oral consumption

文献类型： 外文期刊

作者： Tian, Wenni 1 ; Huang, Yushu 1 ; Song, Zengliu 1 ; Yu, Yuanshan 2 ; Liu, Jia 3 ; Cao, Yong 1 ; Xiao, Jie 1 ;

作者机构： 1.South China Agr Univ, Coll Food Sci, Guangdong Prov Key Lab Nutraceut & Funct Foods, Guangzhou 510642, Peoples R China

2.Guangdong Acad Agr Sci, Minist Agr & Rural Affairs, Guangdong Key Lab Agr Prod Proc, Key Lab Funct Foods Sericultural & Argi Food Res I, Guangzhou 510610, Peoples R China

3.China Natl Res Inst Food & Fermentat Ind, Beijing Key Lab Innovat Dev Funct Staple & Nutr In, Beijing, Peoples R China

关键词： Bigels; Rheology; Tribology; Binary hydrogel; Stability; Oral sensation

期刊名称：FOOD RESEARCH INTERNATIONAL （ 影响因子：8.1； 五年影响因子：7.7 ）

ISSN： 0963-9969

年卷期： 2023 年 174 卷

页码：

收录情况： SCI

摘要： Edible delivery systems such as emulsions and gels that possess flexible oral flavor sensation and comprehensive stability under freeze-thaw processing are highly demanded in the frozen food industry. Bigels were fabricated via emulsification of stearic acid based oleogel with konjac glucomannan (KGM)-gelatin (G) based binary hydrogel. By varing the KGM/G mass ratio (gamma) and oleogel/hydrogel volume ratio (phi) of bigels, modulation over the micromorphology, tribology, flavor sensation and cheese stick imitating capacity were achieved. Notably, as phi increased from O4:W6 to O5:W5, the microstructural transformation from oleogel-in-hydrogel to bicontinuous morphology emerged as a remarkable feature. The influence of gamma was evident in bicontinuous bigels, significantly enhancing water holding capacity (WHC) by 3.38-fold as gamma transitioned from 1KGM:5G to 6KGM:5G during freeze-thaw cycles. phi and gamma both played pivotal roles in altering the microstructure and rheological properties of the bigels, enabling customizable release of bioactive components and flavor perception. Oleogel-in-hydrogel bigels effectively prevented bioactive compound leakage during freeze-thaw conditions, while bicontinuous bigels demonstrated sustained flavor release during oral mastication. Release behaviors were dual-controlled by phi and gamma, reducing oil-soluble flavor release with increased phi and lowering hydrophilic volatile release with elevated gamma. Moreover, bigel-based cheese sticks showcased lower viscosity, higher creep recovery rates, and enhanced mouthfeel during minimal oral chewing, suggesting their potential in mimicking the properties of commercial counterparts. These findings extend insights into bigel design for tailored flavor release and bioactive preservation in food products.

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