Evaluation of metal and microbial contamination in botanical supplements
Evaluation of metal and microbial contamination in botanical supplements
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DOI：
10.1021/jf049150
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发表时间：
2004-12-29
影响因子：
6.1
通讯作者：
Nair, MG
中科院分区：
文献类型：
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作者：
Raman, P;Patino, LC;Nair, MG
在美国，植物性膳食补充剂的销量正在上升。然而，对这些补充剂的安全性进行了有限的研究。有报道说，在一些植物性膳食补充剂中存在不需要的金属。本研究以紫锥菊、大蒜、银杏、人参、葡萄籽萃取物、卡瓦卡瓦、saw palmeto、Nutrilite、Solaray、Sundown和Natrol等天然之道、美杰、GNC、纽崔莱、sunaray和Natrol等公司生产的补品为研究对象，采用电感耦合等离子体质谱法分析其铅、汞、镉、砷、铀、铬、钒、铜、锌、钼、钯、锡、锑、铊和钨的含量。所有的样品都没有汞污染。结果表明，所分析的植物补充剂不含这些金属的不可接受的浓度。这些补充剂还被评估了微生物污染，大多数分析样本显示存在细菌或真菌或两者兼而有之。没有对这些样品中的微生物进行计数，也没有对微生物数量进行测定。
The sale of botanical dietary supplements in the United States is on the rise. However, limited studies have been conducted on the safety of these supplements. There are reports on the presence of undesired metals in some of the botanical dietary supplements. In this study, echinacea, garlic, ginkgo, ginseng, grape seed extract, kava kava, saw palmetto, and St. John's wort supplements manufactured by Nature's Way, Meijer, GNC, Nutrilite, Solaray, Sundown and Natrol, have been analyzed for lead, mercury, cadmium, arsenic, uranium, chromium, vanadium, copper, zinc, molybdenum, palladium, tin, antimony, thallium, and tungsten using inductively coupled plasma mass spectrometry. All samples were devoid of mercury contamination. Results indicated that the botanical supplements analyzed did not contain unacceptable concentrations of these metals. These supplements were also evaluated for microbial contamination, and most samples analyzed showed the presence of bacteria or fungi or both. Microbes were not counted nor were microbial counts determined in these samples.