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Food Biotechnology Section

Aloe vera COMO SUSTRATO PARA EL CRECIMIENTO DE Lactobacillus plantarum y L. casei
USE OF Aloe vera JUICE AS SUBSTRATE FOR GROWTH OF Lactobacillus plantarum and L. casei

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Pages 152-157 | Received 16 Jul 2007, Accepted 20 Nov 2007, Published online: 02 Oct 2009
 

Abstract

Resumen

This work was carried out to define main fermentation parameters to achieve high growth and viability of two probiotic bacterial strains: Lactobacillus plantarum (NCIMB 11718) and Lactobacillus casei (NRRL - 1445) using Aloe vera juice as main fermentation substrate. The effect of substrate concentration on the growth rate (μ) for each strain was assessed and compared with those achieved in standard medium (MRS) for these strains. The higher viable counts were obtained using pure Aloe vera juice as fermentation broth for both strains (1x109 CUF/mL for L. plantarum and 1 x 1011 CUF/mL para L. casei) being the bacterial cultures growth rates in Aloe vera similar to those obtained on MRS medium (μ= 2.85 and μ= 2.71 h−1 for L. plantarum y and L. casei respectively). The use of Aloe vera juice can provide a high concentration of health promoting bacteria as well as being a drink with a pleasant taste for its consumption, thus providing the health benefits derived from the intake of probiotic agents as well as those from the nutrients and nutraceutical agents contained naturally in Aloe vera juice.

En este estudió se determinó el efecto del uso de jugo de Aloe vera (sábila) como sustrato principal de fermentación para obtener cultivos de alta concentración de células viables de dos bacterias con actividad probiótica: Lactobacillus plantarum (NCIMB 11718) y Lactobacillus casei (NRRL - 1445). Se determinó la velocidad específica de crecimiento (μ) de cada microorganismo en medios con diferentes concentraciones de Aloe vera comparándolos con aquellos obtenidos en cultivos crecidos en medio estándar para cultivos lácticos (MRS). Utilizando el jugo de sábila al 100%, se obtuvieron altas cuentas viables para ambas cepas (1 x 109 y 1 x 1011 UFC/mL para L. plantarum y L. casei respectivamente) siendo la cinética de crecimiento de ambos probióticos muy similar a la obtenida en medio estándar (μ= 2,85 h−1 en Aloe vera y 3,16 h−1 en MRS para L. plantarum y μ= 2,71 h-1 y 2,89 h−1 para L. casei).

Palabras clave: Aloe vera, fermentación, alimentos funcionales, probióticos, BIBLIOGRAFÍA

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