2-Acetyl-1-pyrroline (2AP) is a popular yet highly unstable aroma compound, which limits its commercial use as a flavoring ingredient. The stability and application of spray-chilled paraffin-coated microcapsules of 2AP zinc chloride complex (2AP–ZnCl₂) were investigated in this study. 2AP–ZnCl₂ microcapsules (0.081% (w/w) 2AP loading) and unprotected 2AP–ZnCl₂ complex were subjected to ambient storage at four different relative humidities (RH; ∼0%, ∼22.5%, ∼43.2% and ∼100%). The results showed that the microcapsules had significantly greater 2AP stability compared with the unprotected complex under all storage conditions studied. A flavor application study using instant rice was also performed to validate the potential effectiveness of using 2AP–ZnCl₂ microcapsules as a flavoring agent. Full 2AP recovery was achieved after the cooking process, where the controlled release function of the microcapsules was clearly exhibited. The results demonstrated that microencapsulation of 2AP–ZnCl₂ allows for more flexible handling/storage practices and has potential for application by the flavor industry.

2-乙酰基-1-吡咯啉（2AP）是一种流行但高度不稳定的香气化合物，限制了其作为调味成分的商业用途。本文研究了喷雾冷却的石蜡包被的2AP氯化锌复合物（2AP–ZnCl ₂）的稳定性和应用。2AP–ZnCl ₂微胶囊（0.081％（w / w）2AP负载）和未保护的2AP–ZnCl ₂该复合物在四种不同的相对湿度（RH；〜0％，〜22.5％，〜43.2％和〜100％）下进行环境储存。结果表明，与未保护的复合物相比，在所有研究的存储条件下，微胶囊均具有明显更高的2AP稳定性。还进行了使用速溶大米的调味剂应用研究，以验证使用2AP–ZnCl ₂微胶囊作为调味剂的潜在有效性。在蒸煮过程之后，完全2AP的恢复得以实现，在该过程中，微胶囊的控释功能得到了明显体现。结果表明，2AP–ZnCl _2的微囊化可以实现更灵活的处理/存储方式，并具有在香料行业中应用的潜力。