烟草的抗氧化性能

中国烟草科学 Pub Date : 2000-01-01 DOI:10.3381/0082-4623-44.1.71

B. Rodu, B. Ou

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引用次数: 7

摘要

哺乳动物细胞已经进化出一个复杂的酶和非酶分子网络，保护它们免受活性氧(ROS)的有害影响。这些内源性抗氧化剂主要通过从植物中获得的膳食抗氧化剂来补充。虽然许多研究已经评估了水果和蔬菜的抗氧化特性，但对另一种常见的植物产品烟草的抗氧化特性知之甚少。采用氧自由基吸收能力(ORAC)测定法测定了16种市售烟草制品的抗氧化性能。测定了这些产品中多酚的含量。测试的烟草产品具有从中等到高的抗氧化活性。总体抗氧化能力与总酚含量呈显著的线性关系。无烟烟草的高抗氧化活性可能部分解释了长时间吸烟导致癌症风险低的原因。

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THE ANTIOXIDANT PROPERTIES OF TOBACCO

Abstract Mammalian cells have evolved a complex network of enzymatic and non-enzymatic molecules that protect them from the detrimental effects of reactive oxygen species (ROS). These endogenous antioxidant agents are supplemented by dietary antioxidants, obtained mainly from plants. Although many studies have assessed the antioxidant properties of fruits and vegetables, much less is known about the antioxidant characteristics of another commonly ingested plant product, tobacco. The antioxidant properties of 16 commercially available tobacco products were determined using an oxygen radical absorbance capacity (ORAC) assay. The concentrations of polyphenols in these products also were determined. The tobacco products tested had a range of antioxidant activity from modest to high. A significant linear relationship was observed between the overall antioxidant capacity and total phenolic content. The high antioxidant activity in smokeless tobacco may partially explain the low cancer risk associated with long-...

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来源期刊

中国烟草科学烟草

自引率

0.00%

发文量

3722

期刊介绍： Chinese Tobacco Science is an academic scientific journal (bimonthly) under the supervision of the Ministry of Agriculture and Rural Affairs of the People's Republic of China, and sponsored by the Tobacco Research Institute of the Chinese Academy of Agricultural Sciences and the Qingzhou Tobacco Research Institute of China National Tobacco Corporation. It was founded in 1979 and is publicly distributed nationwide. The journal mainly publishes academic papers on scientific research results, new production technologies, and modern management in my country's tobacco science research and tobacco production technology. In addition, it also publishes forward-looking review articles in the field of tobacco research. There are columns such as tobacco genetics and breeding, cultivation technology, modulation and processing, physiology and biochemistry, plant protection, review or monograph, quality chemistry, etc.