载香温敏凝胶珠的制备及控释特性研究  

Preparation and controlled release characterization ofaroma-loaded temperature-sensitive gel beads

作　　者：王长权 王万能 邹鹏[1] 熊杰 江昆 陶婧 胡瑞庭 WANG Changquan;WANG Wanneng;ZOU Peng;XIONG Jie;JIANG Kun;TAO Jing;HU Ruiting(Key Laboratory of Combustion and Pyrolysis Study of China National Tobacco Corporation,Anhui Tobacco Industry Co.,Ltd.,Hefei 230088,China;Department of Pharmacy and Bioengineering,Chongqing University of Technology,Chongqing 400054,China)

机构地区：[1]安徽中烟工业有限责任公司烟草行业燃烧热解研究重点实验室,合肥230088 [2]重庆理工大学药学与生物工程学院,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2024年第8期298-304,共7页Journal of Chongqing University of Technology：Natural Science

基　　金：安徽中烟工业有限责任公司科技项目“温度响应型水凝胶珠在卷烟中的应用研究”(2023340000340013);“黄山高端中细支卷烟产品甜润设计技术研究”(2023134)。

摘　　要：现有卷烟爆珠主要采用机械外力破坏释放香料,存在香味物质释放快速且短暂的缺陷。以SA(海藻酸钠)、NIPAM(N-异丙基丙烯酰胺)、APS(过硫酸铵)、MBA(N,N’-亚甲基双丙烯酰胺)、TEMED(四甲基乙二胺)为基质,采用冷冻聚合法制备温敏凝胶珠;利用FT-IR、SEM测定其物理性能;再将载荷水溶性香精的温敏凝胶珠装载于卷烟滤棒中,利用HPLC分析了卷烟抽吸过程温敏凝胶珠的香精在主流烟气中的释放规律。结果表明:FT-IR和SEM证明了温敏凝胶珠制备成功;根据不同浓度SA对载香温敏凝胶珠性能的影响,选取0.8%SA组作为制备温敏凝胶珠的最适浓度;其平衡溶胀率高达628%、退溶胀速率较快,4 min即可达到退溶胀平衡;卷烟抽吸时第1-4口香精释放量占总释放量的28.65%,第5-7口、第8-10口释放量分别为40.20%、31.14%;整个抽吸过程香精释放较均匀稳定。Existing cigarette popping beads mainly use mechanical external force to destroy the release of flavors.They suffer defects of rapid and short-lived release of flavor substances.In this paper,temperature-sensitive gel beads are prepared using SA,NIPAM,APS,MBA,and TEMED as the substrate by using the freezing polymerization method.Their physical properties are determined by using FT-IR and SEM and then loaded with water-soluble flavors loaded in cigarette filter rods,and the flavors are released using high-performance liquid chromatography.The physical properties are determined by FT-IR and SEM;the water-soluble flavors are loaded into cigarette filter rods,and the release pattern of the flavors from the temperature-sensitive gel beads in the mainstream cigarette smoke is analyzed by HPLC.Our results show the temperature-sensitive gel beads are successfully prepared through FT-IR and SEM.According to the effects of different concentrations of SA on the performance of aroma-carrying temperature-sensitive gel beads,the 0.8%SA group is selected as the optimal concentration for the preparation of temperature-sensitive gel beads;its equilibrium swelling rate is as high as 628%,and the rate of desolvation is fast,and the desolvation equilibrium is reached in 4 min.When the cigarette is smoked,the release of flavors from the 1st-4th puffs account for 28.65%of the total release,and the release from the 5th-7th puffs and the 8th-10th puffs are 40.20%and 31.14%,respectively;the release of flavors during the whole smoking process is more uniform and stable.

关 键 词：温敏 凝胶珠 冷冻聚合 香精 控释 

分 类 号：O65[理学—分析化学]