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Pesquisa : B01.650.940.800.575.912.250.341.937.267 [Categoria DeCS]
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Texto completo SciELO Chile
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Id: biblio-950722
Autor: Villagra, Evelyn; Campos-Hernandez, Carola; Cáceres, Pablo; Cabrera, Gustavo; Bernardo, Yamilé; Arencibia, Ariel; Carrasco, Basilio; Caligari, Peter DS; Pico, José; García-Gonzales, Rolando.
Título: Morphometric and phytochemical characterization of chaura fruits (Gaultheria pumila): a native Chilean berry with commercial potential
Fonte: Biol. Res;47:1-8, 2014. graf, tab.
Idioma: en.
Projeto: Universidad Católica del Maule. Departamento de Ciencias Forestales; . Fondo de Innovación para la Competividad of the Región del Maule; . Comisión Nacional de Investigación Científica y Tecnológica. Programa Nacional de Becas de Doctorado en Chile; Programa de Atracción e Inserción de Capital Humano.
Resumo: BACKGROUND: For the first time, a morphometric characterization of chaura (Gaultheria pumila) fruits has been conducted between natural populations growing in the Villarrica National Park, Araucania Region, Chile. Chaura is a native Ericaceae from Chile that produces aromatic and tasty fruits which could be of agricultural interest. RESULTS: To influence the decision for a further domestication of G. pumila, both the fruit sizes (indicator of productivity) and the nutritional properties of the fruits have been determined from different subpopulations. Samples were a total of 74 plants and 15 fruits per plant which were randomly harvested following its natural distribution around the Villarrica volcano. Altogether, fresh weight, shape, color, diameter in the pole and the equatorial dimensions were determined as phenotypic traits of the G. pumila fruits. Meanwhile the total soluble solids, anthocyanin and pectin contents were calculated as nutritional traits of the Chaura fruits. Results showed a high phenotypic diversity between the sampled population with three main fruit shapes and three predominant colors. The round shapes were the most abundant, whereas a significant correlation was found among fruit size with weight and color. The highest fresh weight (597.3 mg), pole diameter (7.1 mm) and equatorial diameter (6.5 mm) were estimated in the pink color fruits. CONCLUSIONS: The total amount of anthocyanin was higher in red fruits, while the maximum pectin content was obtained in the round white fruits. Overall results must pave the way for a further domestication and introduction of the Chaura species in the agro-productive system in Chile.
Descritores: Pectinas/análise
Gaultheria/anatomia & histologia
Gaultheria/química
Frutas/anatomia & histologia
Frutas/química
Antocianinas/análise
-Fenótipo
Refratometria
Chile
Análise de Variância
Produtos Agrícolas
Biodiversidade
Antioxidantes/análise
Valor Nutritivo
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: CL1.1 - Biblioteca Central


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Id: biblio-1179398
Autor: Torres-Guevara, Fidel A; Ganoza Yupanqui, Mayar L; Suárez Rebaza, Luz A.
Título: Sustancias bioactivas y actividad antioxidante de frutales nativos de páramos y bosques de neblina del norte peruano / Bioactive substances and antioxidant activity of native fruit trees from moorlands and cloud forests in northern Peru
Fonte: Rev. peru. med. integr;5(4):129-134, 2020. tab, graf.
Idioma: es.
Resumo: Objetivos. Determinar los principales tipos de sustancias bioactivas, contenido de polifenoles y actividad antioxidante de cinco frutales nativos de paramos y bosques de neblina del norte peruano. Materiales y métodos. Cinco frutales nativos (Gaultheria reticulata «ushpa¼, Hesperomeles obtusifolia «sachón¼, Physalis peruviana «tungay¼, Rubus robustus «muyaca¼ y Symplocos nuda «chimicuno¼") fueron evaluados mediante análisis fitoquímico preliminar, contenido de polifenoles por el método de Folin-Ciocalteau y la actividad antioxidante, mediante tres métodos (DPPH, ABTS y CUPRAC) en tres sistemas de extracción (decocción, etanol 45% y etanol 96% acidulado). Resultados. Los frutales nativos «ushpa¼ y «sachón¼ de los páramos; «muyaca¼ y «chimicuno¼ de los bosques de neblina contienen de 4 a 5 tipos de sustancias bioactivas (compuestos fenólicos, flavonoides, saponinas y triterpenoides/ esteroides). Las especies contienen valores significativamente altos de polifenoles en el extracto acuoso por decocción que se encontraron entre 62,30 ± 2,49 y 5,36 ± 0,20 mg de equivalentes ácido gálico/g de fruto liofilizado. La actividad antioxidante, bajo tres sistemas de extracción y tres métodos de análisis mostró valores significativamente altos entre 1,43 ± 1,19 y 413,92 ± 4,09 mg de equivalentes de Trolox/g fruto liofilizado. Conclusiones. Las sustancias bioactivas identificadas, el contenido de polifenoles y la actividad antioxidante por DPPH, ABTS y CUPRAC, determinan las potencialidades fitoquímicas que le dan valor nutraceútico a estos frutales nativos.

Objectives. To determine the main types of bioactive substances, polyphenol content and antioxidant activity of five native fruit trees of Paramos and Cloud Forests of Northern Peru. Materials and methods. Five native fruit trees (Gaultheria reticulata "ushpa", Hesperomeles obtusifolia "sachón", Physalis peruviana "tungay", Rubus robustus "muyaca" and Symplocos nuda "chimicuno") were evaluated by preliminary phytochemical analysis, polyphenol content by Folin-Ciocalteau method and antioxidant activity by three methods (DPPH, ABTS and CUPRAC) in three extraction systems (decoction, ethanol 45% and ethanol 96% acid). Results. The native fruit trees "ushpa" and "sachon" of the Paramos; "muyaca" and "chimicuno" from Cloud Forests contain 4 to 5 bioactive substances (phenolic compounds, flavonoids, saponins and triterpenoids/steroids). The species contain significantly high values of polyphenols in the aqueous extract by decoction that were found between 62.30 ± 2.49 and 5.36 ± 0.20 mg Gallic Acid equivalents/g of lyophilized fruit. The antioxidant activity, under three extraction systems and three analysis methods, showed significantly high values between 1.43 ± 1.19 and 413.92 ± 4.09 mg of Trolox equivalents/g lyophilized fruit. Conclusions. The bioactive substances identified, the polyphenol content and the antioxidant activity by DPPH, ABTS and CUPRAC, determines the phytochemical potentialities that give nutraceutical value to these native fruit trees.
Descritores: Frutas
Antioxidantes
-Peru
Gaultheria
Physalis
Compostos Fitoquímicos
Rubus
Tipo de Publ: Estudo de Avaliação
Responsável: BR1.1 - BIREME


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Texto completo SciELO Chile
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Id: biblio-1038782
Autor: Garcia-Gonzales, Rolando; Pico-Mendoza, José; Quiroz, Karla; Carrasco, Basilio; Cáceres, Pablo; Chong-Perez, Borys; Pino, Hugo; Seiltgens, Marjorie; Greck, Eglis; Caligari, Peter D. S.
Título: Development and characterization of microsatellite markers in Gaultheria pumila Lf. (Ericaceae)
Fonte: Biol. Res;51:42, 2018. tab.
Idioma: en.
Projeto: Laboratorio Regional de Biotecnologías Aplicadas.
Resumo: BACKGROUND: Polymorphic microsatellite markers were developed for Gaultheria pumila (Ericaceae) to evaluate genetic diversity and population structure within its native range in Chile. This is a very important Ericaceae endemic to Chile with a large commercial potential. Its resistance to different abiotic conditions makes it a valuable target for genetic improvement. RESULTS: Ten polymorphic simple sequence repeat (SSR) loci were isolated from Gaultheria pumila using new-generation 454 FLX Titanium pyrosequencing technology. The mean number of alleles per locus ranged from 2 to 4. Observed and expected heterozygosity ranged from 0.00 to 1.0 and 0.00 to 0.64, respectively. CONCLUSIONS: From 10 SSR markers developed for G. pumila, 9 markers are promising candidates for analyzing genetic variation within or between natural populations of G. pumila and other species from the same genus.
Descritores: DNA de Plantas/genética
Repetições de Microssatélites/genética
Gaultheria/genética
-Polimorfismo Genético
Variação Genética
Alelos
Responsável: CL1.1 - Biblioteca Central



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