AUTHOR=Lindner Gottlieb Georg , Drexel Claus-Peter , Sälzer Katrin , Schuster Tobias B. , Krueger Nils 

TITLE=Comparison of Biogenic Amorphous Silicas Found in Common Horsetail and Oat Husk With Synthetic Amorphous Silicas

JOURNAL=Frontiers in Public Health

VOLUME=Volume 10 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2022.909196

DOI=10.3389/fpubh.2022.909196

ISSN=2296-2565

ABSTRACT=The present paper summarizes literature on the presence and the structure of biogenic amorphous silica (BAS) in nature. Based on this review it could be shown that BAS is ubiquitous in nature and exhibits a structure which cannot be differentiated to the structure of synthetic amorphous silica (SAS). The structural similarity of BAS and SAS are further supported by own investigations – in particular specific surface area (BET) and electron microscope techniques - on oat husk and common horsetail. Many food products containing BAS are considered as being beneficial to health. In context with SAS in specific applications (e.g. food, feed, cosmetics) this is of special interest for the discussion of the safety of these applications.