Silica content of 36 Brazilian tropical wood species

✍ Scribed by Santana, Marcos Antonio Eduardo (author);Rodrigues, Laécio Carneiro (author);Coradin, Vera Teresinha Rauber (author);Okino, Esmeralda Yoshico Arakaki (author);De Souza, Mário Rabelo (author)

• Book ID: 120222090
• Publisher: Walter de Gruyter GmbH & Co. KG
• Year: 2013
• Tongue: German
• Weight: 355 KB
• Volume: 67
• Category: Article
• ISSN: 0018-3830
• DOI: 10.1515/hf-2011-0240

✦ Synopsis

Abstract

Microscopic analysis of 36 Brazilian Amazon wood species revealed the presence of silica in 12 species, mostly in the ray cells and a few times in the axial parenchyma and fibers. The average amount of silica in these species varied from 0.07% to 1.6% as quantified by flame atomic absorption spectroscopy (FAAS). Statistical analysis gave the following classification in terms of silica contents: very low (<0.07%), low (between 0.07% and 0.3%: Diplotropis purpurea and Vatairea paraensis), medium (between 0.3% and 0.4%: Chrysophyllum
lucentifolium, Couratari multiflora, Dacryodes sp., Mezilaurus itauba, Trattinnickia burserifolia, and Trattinnickia rhoifolia), high (between 0.4% and 0.7%: Astronium gracile and Couratari sp.), and very high (above 0.7%: Apuleia leiocarpa and Couratari stellata).