Herein, oil-in-water high internal phase emulsions (HIPEs) were stabilized by lignin from different technical resources with the assistance of alkyl polyglycoside (APG) using an ultrasonic cavitation method. The results showed that the amphiphilicity of lignin determined the formation of HIPEs. Microscopic and rheological characterization indicated that the molecular weight and concentration of lignin, the APG dosage and the oil/water ratio had important influences on the microstructure and stability of the HIPEs. In addition, nutraceutical β-carotene could be encapsulated in the oil phase of the HIPEs, which exhibited outstanding protection against photo- and thermal-oxidative degradation of β-carotene. After storage for 30 days under room temperature/light or storage for 7 days under 55 °C/dark conditions, the retention of β-carotene in the HIPEs was 87% to 95%, which is significantly higher than that of β-carotene dispersed in bulk oil. In vitro digestion experiments indicated that the digestibility of the HIPEs also markedly improved. The largest release of free fatty acids was 80%. The bio-accessibility of β-carotene in these lignin-based HIPEs also reached 60%.

中文翻译：

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通过生物质木质素作为营养释放系统稳定的抗光和抗热高内相乳液的开发†

在本文中，使用超声空化方法借助烷基多糖苷（APG）借助不同技术来源的木质素来稳定水包油型高内相乳液（HIPE）。结果表明，木质素的两亲性决定了HIPE的形成。微观和流变学特性表明，木质素的分子量和浓度，APG的用量以及油/水比对HIPEs的微观结构和稳定性都有重要影响。此外，保健食品中的β-胡萝卜素可以封装在HIPEs的油相中，表现出出色的保护作用，可防止β-胡萝卜素的光氧化和热氧化降解。在室温/光照下储存30天或在55°C /黑暗条件下储存7天后，体外消化实验表明，HIPEs的消化率也显着提高。游离脂肪酸的最大释放为80％。在这些基于木质素的HIPE中，β-胡萝卜素的生物可及性也达到60％。