Environmental contaminants in hops
Environmental contaminants in hops include substances such as metals, radionuclides and fungal toxins. Other substances are, for example, nitrate and zinc reaching the plant from soil fertilisers. This paper deals with the levels of selected metals, Cs 137 and Cs 134 radionuclides as well as a number of mycotoxins.
Hops contributes groups of substances vital for brewing. Bitter substances, aroma substances and polyphenols make a significant contribution to the character of a beer. In addition to these three substance groups, hops contains components which are not necessarily desirable. It is well known that hops is a natural product and thus exposed to environmental influences during the vegetation phase. This may result in contaminations. Forster et al. ...
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