Probiotic Properties of Lactobacillus Plantarum LRCC5193, a Plant-Origin Lactic Acid Bacterium Isolated from Kimchi and Its Use in Chocolates.

• Autores: Jung-Hoon Lim, Seok-Min Yoon, Pei-Lei Tan, Siyoung Yang, Sae-Hun Kim, Hyun Jin Park
• Localización: Journal of food science, ISSN 0022-1147, Vol. 83, Nº 11, 2018, págs. 2802-2811
• Idioma: inglés
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• Resumen

  • This study involves an investigation of the probiotic properties of lactic acid bacteria isolated from Kimchi, and their potential applications in chocolate. Lactobacillus plantarum-LRCC5193 (LP-LRCC5193) demonstrated a significantly higher degree of heat, acid, and bile acid tolerance compared to other Kimchi isolates. The intestinal adhesion assay also revealed that 84.2 log percentage of LP-LRCC5193 adhered to the Caco-2 cells after 2 h of incubation. Furthermore, the lyophilized LP-LRCC5193 maintained 92.9 log percentage and 97.2 log percentage survival rate within artificial stomach juice (pH 2.5, pepsin 0.04%) and artificial intestinal juice (oxgall 0.5%, trypsin 0.04%, and pancreatin 0.04%), respectively. Meanwhile, we also found that lyophilized LP-LRCC5193 incorporated in chocolate exhibited significantly higher survivability than lyophilized LP-LRCC5193 in both artificial gastric and intestinal juice under 1 to 3 hr incubation, where the survivability was within the range of 96.3 to 98.5 log percentage, and 98.8 to 98.9 log percentage, respectively. A 6-month storage test further revealed that LP-LRCC5193 demonstrated higher stability than the lyophilized LP-LRCC5103 in 3 different temperature ranges, where the final survival rates were 97.2 log percentage (20 °C), 89.2 log percentage (33 °C), and 94.4 log percentage (15 to 30 °C/wk). Altogether, our data suggest that chocolate can be used as a tasty delivery vehicle for delivering putative probiotic strain, LP-LRCC5193 to the gastrointestinal tract. PRACTICAL APPLICATION: Lactobacillus plantarum LRCC5193 (LP-LRCC5193) isolated from Kimchi demonstrated high stability under gastrointestinal environmental stresses and good adhesion to the intestinal epithelial cells in vitro. In addition, LP-LRCC5193 containing chocolates remained highly stable after storage at room temperature for 6 months. Chocolate containing LP-LRCC5193 can thus be considered a promising probiotic delivery system.; © 2018 Institute of Food Technologists®.