食品科学技术学报2026，Vol.44Issue(2)：93-109,17.DOI:10.12301/spxb202500487
口腔加工过程高内相乳液中Na+的释放与咸味感知研究
Study on Na+Release and Saltiness Perception in High Internal Phase Emulsions During Oral Processing
摘要
Abstract
High internal phase emulsions(HIPEs),defined as emulsions with a dispersed phase volume fraction exceeding 74%,are widely employed for modulating food texture and delivering bioactive compounds.To investigate the release kinetics of Na+and saltiness perception in food systems,while achieving fat and salt reduction objectives,polyglycerol polyricinoleate(PGPR)was used as an emulsifier to prepare water-in-oil(W/O)HIPEs with an 80%aqueous phase volume fraction,and their behavior under simulated oral processing conditions was subsequently examined.Regarding matrix release,Na+existed in a quasi-free ionic state within W/O emulsions,with its release rate significantly influenced by the dispersing medium and mastication duration.In salivary medium,salivary proteins initially restricted Na+release.However,release progressively increased with prolonged mastication,and saliva markedly accelerated Na+release compared to deionized water.Concerning oral transfer,elevated PGPR and NaCl concentrations prolonged emulsion retention on porcine tongue surfaces,whereas emulsions with lower aqueous phase volume fractions exhibited enhanced wettability by saliva and reduced mucoadhesion.Na+diffusion through the mucin layer was primarily governed by the intrinsic structural properties of the emulsion and emulsion-mucin interactions.In terms of saltiness perception,W/O emulsions presented a relatively smooth,oily flavor profile,with saltiness perception being more susceptible to NaCl concentration.Emulsion texture also exerted a moderate influence on saltiness perception and overall acceptability.These findings demonstrated that modulation of PGPR concentration(4%-8%),aqueous phase volume fraction(30%-80%),and NaCl concentration(10-200 mmol/L)can optimize Na+release behavior and oral mucoadhesion properties of W/O HIPEs,enabling sodium reduction without compromising saltiness.As a potential butter replacer,this system offered dual advantages of fat reduction and enhanced saltiness perception,providing theoretical foundations and technical guidance for the development of novel health-oriented food products.关键词
高内相乳液/口腔加工/Na+释放/咸味感知/减盐策略Key words
high internal phase emulsions/oral processing/Na+release/saltiness perception/salt reduction strategies分类
轻工纺织引用本文复制引用
卫姣,尚靖雯,曾庆宏,袁芳,毛立科..口腔加工过程高内相乳液中Na+的释放与咸味感知研究[J].食品科学技术学报,2026,44(2):93-109,17.基金项目
四川省自然科学基金资助项目(2024NSFSC0369). Natural Science Foundation of Sichuan Province(2024NSFSC0369). （2024NSFSC0369）
