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Fermentation product with new equol-producing Lactobacillus paracasei as a probiotic-like product candidate for prevention of skin and intestinal disorder.

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BACKGROUND Equol is a major isoflavone metabolite, and equol-producing bacteria have been isolated and characterized; however, fermentation has been performed with soybean-based products as substrates. Pueraria lobata has been reported… Click to show full abstract

BACKGROUND Equol is a major isoflavone metabolite, and equol-producing bacteria have been isolated and characterized; however, fermentation has been performed with soybean-based products as substrates. Pueraria lobata has been reported as a plant with higher content of isoflavones. RESULTS The genome of new equol-producing bacteria, Lactobacillus paracasei JS1, was analyzed. Also, the effect of P. lobata extract fermented with L. paracasei JS1 (FPE) on the skin and intestinal immune response was examined. With gene expression analysis, it was proven that seven skin-related proteins, hyaluronan synthase-1, -2, -3, collagen, elastin, epidermal growth factor, and epidermal growth factor receptor were differentially expressed upon FPE treatment. The messenger RNA expression increased with treatment with the FPE, and a skin moisturizing effect was confirmed by a hematoxylin-eosin staining experiment. In addition, such an experiment showed that proinflammatory cytokines, tumor necrosis factor-α, cyclooxygenase-2, inducible nitric oxide synthase, interleukin-1β, -4, and -6, were reduced in large intestine when treated with FPE. CONCLUSION L. paracasei JS1 has the ability to produce equol having beneficial effects on the skin. Moreover, FPE also has an inhibitory effect on inflammation cytokines in the large intestine. Thus, the novel and edible equol-producing L. paracasei JS1 and FPE have thepotential to be developed as nutricosmetic resources. © 2019 Society of Chemical Industry.

Keywords: skin intestinal; lactobacillus paracasei; product; new equol; equol producing; paracasei js1

Journal Title: Journal of the science of food and agriculture
Year Published: 2019

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