This literature brief review compiled the main biological activities and active chemical constituents that have already been isolated from Piper aduncum (Piperaceae), whose common name is spiked paper. In Brazilian Portuguese, it has been called pimenta-longa, aperta-ruão, pimenta de macaco, matico, erva de jaboti, jaborandi do mato, pimenta-de-fruto-ganchoso and tapa buraco. Extracts, essential oils (EOs) and compounds isolated from this species have exhibited remarkable fungicidal and insecticidal activities, besides antibacterial, antileishmanial, antioxidant, cytotoxic/antitumor, larvicidal, antiplatelet, molluscoidal and antiviral ones. P. aduncum is an endemic species in Brazil which has drawn researchers' attention because of high contents of EOs that are extracted from its leaves, inflorescences and twigs. This study aimed at analyzing data on P. aduncum, its EOs, extracts and isolated compounds found in 45 research papers. Its major chemical constituent is definitely dillapiole, an arylpropanoid. Findings were carefully compiled by this brief review which reinforces the chemical and biological potential of this botanic species.
Tradescantia pallida (Commelinaceae) has shown promising antibacterial, antioxidant and anticancer activities. This study aimed at extracting hexane from T. pallida (HE-TP) aerial parts to identify and quantify its volatile compounds by GC-MS and GC-FID and at evaluating its antifungal and antiproliferative activities. (E)-4-Methoxycynnamic acid (50.2%), 2,5-di-tert-butyl-1,4-benzoquinone (13.7%) and epijuvabione (10.4%) were the major components identified in HE-TP. HE-TP was incorporated into PDA
HIGHLIGHTS• Tradescantia pallida has shown promising antibacterial, antioxidant and anticancer activities.• Botanical extract products are environmentally friendly, inexpensive and may reduce losses by discouraging pathogen growth.• HE-TP was highly active in in vitro assays against P. digitatum, S. sclerotiorum and R. stolonifer.• HE-TP demonstrated cytotoxic activity against different human tumor cell lines.• The major compound identified in hexane extract from T. pallida was (E)-4-methoxycynnamic acid (50.2%).
Devido ao crescimento populacional, cada vez mais estamos sofrendo com alterações ambientais. A Engenharia Civil tem uma grande parcela nessas alterações já que está associada a grandes processos de transformações da natureza produzindo grandes infraestruturas para o desenvolvimento urbano. A busca por maiores soluções sustentáveis trouxe à tona o desenvolvimento de um material permeável, mas ao mesmo tempo resistente, diante disso o Concreto Permeável vem sendo a saída mais utilizada para amenizar diversos problemas. O concreto permeável se torna dissemelhante ao convencional devido aos seus grandes índices de vazios, permitindo assim se tornar demasiadamente permeável, possibilitando que a água drene pelo concreto ao invés de transcorrer pelo pavimento. O presente trabalho teve como objetivo analisar bibliograficamente a viabilidade do concreto permeável como pavimento e maximizar seus benefícios ambientais.
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