Optimum In Process Of Porous Rice Starch And Its Use In Cigarette Filter Tip

In order to prepare a new kind of cigarette additives which is more safety than the traditional ones and at the same time effectively reducing the cigarette smoke hazardous substances and preserved the original quality of cigarettes as best as one can, this research use rice as raw material to prepare rice starch by alkali treatment. Then through the hydrolysis of glucoamylase to prepare porous rice starch. And then use cross-linking agent and esterifying agent of food grade to prepare cross-linking esterified porous starch. On the foundation of single experimental factor and orthogonal experiment, we try to find the best optimum conditions of preparing cross-linking esterified porous rice starch. And pay much attention to the absorption and morphology of cross-linking esterified starch. Finally, we added the porous starch and cross-linking esterified porous starch as additives to the filter of cigarette. The best added capacity was determined by the experiment of draw resistance and the experiment of the cigarette tasting by the expert. Detecting the gas free radicals and the particulate free radicals of the mainstream smoke which filter having been added 10mg porous starch in by the way of ESR, and compare with the blank samples to visit that the porous starch in cigarette can help in eliminating free radicals. Gauging the ammonia content of the smoke which filter having been added 10mg cross-linking esterified starch with ion chromatography, and compare with the blank samples to inspect the porous starch can help in decreasing the ammonia content of the smoke.The result of this research showing on the condition that the reaction system is pH4.0, the volume of enzyme 1μl/g (activation of enzymes: 9800U/ml), enzymatic soluted temperature 40℃; the enzymatic hydrolysis of time 8h, we can get the high quality of water absorption and oil absorption porous rice starch; if on the condition that the pH10, temperature 40℃, the reaction time 2h, The content of addictive A accounted for 2% of starch on dry basis. we can get the cross-linking esterified rice porous starch which has good structural stability and performance. And the result of resistance test and quality testing show that being added 10mg porous starch in the filter is the best value; if added 10mg porous starch, the gas radical will be reduced 4.47%, and particulate free radical will be reduced 13.69%. If added 10mg cross-linking starch in cigarette, the smoke ammonia content will be lowered 20.13%.