卷烟微胶囊技术多功能化研究进展OA

To comprehensively assess the development and application potential of microcapsule technology in the tobacco cigarette industry,this paper systematically reviews the research progress on multifunctionalization of cigarette microcapsule technology from seven dimensions:aroma sustained-release,moisture retention and humectation,antibacterial activity,harm reduction,temperature control and heat conduction,dyeing and color fixation,and mainstream smoke pH adjustment.Meanwhile,the development status of novel microcapsule preparation technologies is elaborated.With technological innovation and advancement,cigarette microcapsules have expanded from a single aroma sustained-release function to a diversified functional system.For aroma sustained-release,mechanisms including capsule shell diffusion,wall material degradation,and pressure-induced rupture can effectively regulate the release rate of cigarette flavoring.Regarding moisture retention and humectation,the low volatility of oily core materials and the multifold protective effects of composite wall materials can stably improve the moisture content of cut tobacco.In terms of antifungal activity,natural antibacterial flavor microcapsules can inhibit the growth and proliferation of molds.For harm reduction,porous adsorbent microcapsules are predominantly adopted to reduce the contents of carbon monoxide(CO)and nitrosamine carcinogens in mainstream cigarette smoke.In terms of temperature control and heat conduction,preliminary research on temperature-responsive microcapsules offers a promising approach to optimizing the heat transfer efficiency of heat-not-burn(HNB)cigarettes.For dyeing and color fixation,via the dual mechanisms of physical isolation and chemical protection,microcapsule technology remarkably improves the oxidation resistance and color stability of natural pigments in cigarette paper.For mainstream smoke pH adjustment,encapsulating organic acids via microcapsule technology and incorporating the encapsulated products into cigarette paper enables effective control of smoke pH.Novel microcapsule preparation technologies,with the merits of precise controlled-release design and low-temperature green processes,offer novel solutions to the inherent drawbacks of conventional methods,including unstable encapsulation efficiency,wide particle size distribution,and susceptibility to damage of heat-sensitive components.Nevertheless,their large-scale application in the cigarette industry is still hindered by challenges such as low throughput,high production cost,and difficulties in process scale-up.Future research should integrate the merits of novel preparation technologies,focusing on intelligent regulation of release behavior,optimized design of core-wall materials,and multifunctional integration,so as to accelerate the development of cigarette microcapsule technology toward precision,intelligence and greenization.