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Por: María Elvira Zuñiga, Directora del CREAS.

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Para solucionar las dudas de cómo incorporamos al CREAS en nuestra productividad científica , adjunto como ejemplo el papercientífico y el poster. Perdonen la autoreferencia pero es lo que tengo a mano.

La proposición es incorporar al CREAS ( en adición de nuestras respectivas instituciones) en todos los trabajos querealicemos y que estén dentro de la temática del Centro. Con ello contribuiremos a los indicadores que nos exigirá Conicyt en sus evaluaciones.



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Short communicationAntioxidant content of oil and defatted meal obtained from borage seeds by an enzymatic-aided cold pressing process.

C. Soto c, J. Concha b and M.E. Zuniga a, c

a Escuela de Ingeniería Bioquímica,Pontificia Universidad Católica de Valparaíso, General Cruz 34, Valparaíso, Chile

b Departamento de Bioquímica, Facultad de Farmacia, Universidad de Valparaíso, Gran Bretaña 1093, Playa Ancha,Valparaíso, Chile

c Centro Regional de Estudios en Alimentos Saludables, Valparaiso

Received 20 April 2007; revised 6 February 2008; accepted 7 February 2008. Available online 16 February 2008.Abstract

Polyphenols content (as catechin equivalents) and tocopherol content were determined in borage defatted meal and borage oil, respectively. In addition, antioxidant activity of extractsobtained from borage defatted meal was evaluated. A cold pressing process was used for the extraction of Borago officinalis oil, resulting in a defatted meal (by-product). Polyphenols from this defattedborage meal were extracted using several solvents. An extract containing highly soluble solids and phenolic compounds with antioxidant activity (as free radical-scavenging, DPPH) was obtained whenmethanol was used. The tocopherol content was higher in oil extracted by cold pressing than in oil extracted with petroleum ether as organic solvent. An enzymatic treatment was applied (45 °C, 20%...