发明授权
US07302954B1 Cigarette filter comprising grape proanthocyanidin 失效
卷烟过滤器包括葡萄原花青素

Cigarette filter comprising grape proanthocyanidin
摘要:
To a constitutive element of a tobacco (a leaf-tobacco component or a filter) is added a proanthocyanidin or a proanthocyanidin-carrying porous material (such as an active carbon) to obtain an element for tobacco smoke. The proanthocyanidin may be at least one extract selected from a grape seed or pip, a grape rind or pericarp and squeezed dregs of a grape fruit.
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