SciELO - Scientific Electronic Library Online

 
vol.10 número4Triticale (x Triticosecale Wittmack): bioestimulantes orgánicos y fertilización nitrogenada sobre los componentes de rendimiento forrajero en campaña chica-Valle del Mantaro¿La mariquita de siete puntos (Coccinella septempunctata) es efectiva en el control biológico de la mosca blanca (Trialeurodes vaporariorum)? índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

  • Não possue artigos citadosCitado por SciELO

Links relacionados

  • Não possue artigos similaresSimilares em SciELO

Compartilhar


Scientia Agropecuaria

versão impressa ISSN 2077-9917

Resumo

CASTRO-ALAYO, Efraín M. et al. Essential oils of native plants from Peru: Effect of the place of cultivation on the physicochemical characteristics and antioxidant activity. Scientia Agropecuaria [online]. 2019, vol.10, n.4, pp.479-487. ISSN 2077-9917.  http://dx.doi.org/10.17268/sci.agropecu.2019.04.04.

Essential oils (AE) are used as preservatives in the food industry, due to their physicochemical characteristics and antioxidant activity. The aim of this research was to determine yield (R), specific gravity (GE), refractive index (IR), antioxidant activity (AA) and chemical composition of AE of huacatay (Tagetes minuta), poleo (Minthostachys mollis), rosemary (Rosmarinus officinalis L.) and sachaculantro (Eryngium foetidum L.), plants collected from 52 districts of the Amazon region, Peru. For each AE, fixed-effect variance analysis was used with three replications and cluster analysis. The antioxidant activity was determined with the free radical method 2,2-diphenyl-1-picrylhydracil (DPPH) and its most abundant components were identified with headspace gas chromatography coupled to mass spectrometry. The differences in R, GE and IR were significant between districts. The AA showed no significant difference between the districts, but between the plants itself. Among the most abundant volatile components, 1-adamantanol (44.42%) was identified in huacatay, β-phellandrene (20.85%) in poleo, β-myrcene (34.59%) in rosemary and α-pinene (23.41%) in sachaculantro. It is concluded that the geographic location significantly affects the physicochemical properties of AE

Palavras-chave : essential oil; huacatay; poleo; rosemary; sachaculantro.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons