共查询到12条相似文献,搜索用时 62 毫秒
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在筛选有机溶剂的基础上,用乙醇制备胡椒油树脂。采用单因素试验和正交试验确定了有机溶剂浸提法的最佳工艺条件:提取温度为80℃,提取时间为18 h,料液比1∶25(g/mL),原料粒度为60目。 相似文献
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Despite of solvent extracted spice oleoresin having many advantages over ground spices, its sensitivity to light, heat and oxygen is a disadvantage. One approach to overcome this is microencapsulation. The present work reports on microencapsulation of black pepper oleoresin by spray-drying, using gum arabic and modified starch as wall materials. The microcapsules were evaluated for the content and stability of volatiles, non-volatiles, total piperine and entrapped piperine for six weeks. Gum arabic offered greater protection to the pepper oleoresin than modified starch, as seen from the t1/2, time required for a constituent to be reduced to 50% of its initial value. 相似文献
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胡椒油树脂具有粘度大、色泽深、易结晶、溶解难等一系列缺点,给工业生产使用及走进家庭日常生活中使用带来了很多不便,为了解决以上问题,利用胡椒油树脂、不同的乳化剂、植物油和不同的乳化方式制成乳化液,并对乳化工艺和配方进行了研究,通过感官评价和激光粒度分析的方法对其乳化液的乳化性、乳化稳定性进行了分析。结果表明,由胡椒油树脂、水、单苷酯和油制成的水包油包水型(w/O/w)乳液,乳化速度快、状态均匀、无分层现象;30天乳液稳定性研究结果,经分析得到最佳工艺条件及配方如下,乳化方法为W/O/W型乳化,油相辅料为芥花油,水相辅料为酒精和水;乳化剂为黄原胶添加量1.5‰、硬脂酸钠添加量25‰、单甘脂添加量5‰。 相似文献
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超声提取白胡椒油树脂的工艺研究 总被引:1,自引:0,他引:1
以白胡椒粉为原料,研究了超声波辅助乙醇提取白胡椒油树脂的工艺条件,考查了提取溶剂乙醇浓度、固液比、提取温度和提取时间对白胡椒油树脂得率的影响。实验结果表明:用体积分数90%乙醇为提取介质,在固液比为1:8(g:mL)、55℃温度下超声提取60min,白胡椒油树脂得率可达10.28%。 相似文献
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Black pepper oleoresin was prepared by alcohol extraction. Product characteristics and yields obtained by maceration and Soxhlet extraction were compared. The most attractive process was maceration and its influence on volatile oil composition was also evaluated by capillary GLC. 相似文献
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