Biological activities and chemical constituents of Araucaria angustifolia : An effort to recover a species threatened by extinction

Antioxidants extraction from Pinhão ( Araucaria angustifolia (Bertol.) Kuntze) coats and application to zein films

“…Similarly, compounds 10 and 11 (pseudomolecular ions [M−H] − at m/z 865), could be assigned to Btype (epi)catechin trimers. In all instances, the fragmentation patterns were consistent with those expected for such types of compounds, i.e., similar to those observed for proanthocyanidins dimers but with Proanthocyanidins and biflavonoids have been previously described as the most abundant compounds in A. angustifolia (Freitas et al, 2009;Peralta et al, 2016;da Silva et al, 2014;Yamaguchi, Kato, & Di, 2009;Yamaguchi, Vassa, Kato, & Mascio, 2005). Nevertheless, to the best of our knowledge, a detailed characterization of the proanthocyanidin fraction in A. angustifolia seeds has not been previously described.…”

“…Gallic acid and catechin have been identified in cooked and raw A. angustifolia seeds (Koehnlein et al, 2012), whereas, in similar samples, quercetin was identified by two different authors (Cordenunsi et al, 2004;Koehnlein et al, 2012). Catechin has been reported as the main compound present in seeds of A. angustifolia (Peralta et al, 2016). Compounds 1, 2, 4, 5, 7, 8, 10, 11 and 12 were identified as proanthocyanidins based on their pseudomolecular ions and MS 2 fragmentation patterns.…”

Systematic study on the extraction of antioxidants from pinhão ( araucaria angustifolia (bertol.) Kuntze) coat

“…Pinhão flour can be regarded as a new technological option in terms of raw material utilization and as a nutritional source for possible formulations of food products including gluten-free breads as well as a microencapsulating agent (Peralta et al, 2016).…”

Bioaccessibility of Phenolic Compounds of <i>Araucaria angustifolia</i> from Seed Water Extracts during <i>In Vitro</i> Simulated Gastrointestinal Conditions

“…Aiming to evaluate A. angustifolia, a threatened species with particular so- cio-cultural importance, often used as an economical alternative for local residents, we decided to evaluate two different varieties. Peralta et al [8] cited that due to the endangered state of A. angustifolia, the cultivation of this species has received strong encouragement from governmental agencies related to environment and agriculture, and many efforts have been carried out in order to propagate and conserve it, such as pinhão "comum" and pinhão "macaco". The importance of pinhão "comum" is related to its greater frequency in rural properties, while pinhão "macaco", characterized by it's hard to remove peel and is widely consumed by monkeys, is an unexplored variety.…”