Compositions are described and related methods and food products for increasing the blood bioavailability of amino acids derived from proteins, preferably proteins of plant origin, based on a mixture M including at least one bacterial strain, preferably Lactobacillus paracasei DG® CNCM I-1572 and/or Lactobacillus paracasei LPC-S01™ DSM 26760. Furthermore, the mixture M is described, as well as the compositions and related methods and food products based on mixture M and further comprises at least one protein, preferably proteins of plant origin, or a peptide or an amino acid.

Compositions are described and related methods and food products for increasing the blood bioavailability of amino acids derived from proteins, preferably proteins of plant origin, based on a mixture M including at least one bacterial strain, preferably Lactobacillus paracasei DG® CNCM I-1572 and/or Lactobacillus paracasei LPC-S01™ DSM 26760. Furthermore, the mixture M is described, as well as the compositions and related methods and food products based on mixture M and further comprises at least one protein, preferably proteins of plant origin, or a peptide or an amino acid.

Microorganisms for lowering blood ammonia level and composition for protecting neuronal cells containing the same, particularly relates to microbes or a symbiotic pair that has a neuroprotective function by lowering blood ammonia levels or reducing ammonia levels in the body and composition for protecting neuronal cells comprising the microbes. The microorganisms having a neuroprotective function by lowering the blood ammonia level can be selected from the group that include, but not limited to, a Lactobacillus sp. strain and a Streptococcus sp. strain. The ammonia removal strains and the composition have a neuroprotective effect by their excellent ability to remove neurotoxic ammonia, and thus can be widely used as a preventive or therapeutic agent for hyperammonemia and neurological diseases caused thereby.

Microorganisms for lowering blood ammonia level and composition for protecting neuronal cells containing the same, particularly relates to microbes or a symbiotic pair that has a neuroprotective function by lowering blood ammonia levels or reducing ammonia levels in the body and composition for protecting neuronal cells comprising the microbes. The microorganisms having a neuroprotective function by lowering the blood ammonia level can be selected from the group that include, but not limited to, a Lactobacillus sp. strain and a Streptococcus sp. strain. The ammonia removal strains and the composition have a neuroprotective effect by their excellent ability to remove neurotoxic ammonia, and thus can be widely used as a preventive or therapeutic agent for hyperammonemia and neurological diseases caused thereby.

Provided herein are genetically modified microbes. In one embodiment, a genetically modified microbe includes an exogenous polynucleotide that includes a pheromone-responsive region. In one embodiment, the pheromone-responsive region is derived from a conjugative plasmid from a member of the genus Enterococcus spp. The pheromone-responsive region includes a pheromone-responsive promoter and an operably linked coding region encoding an antimicrobial peptide. In one embodiment, a genetically modified microbe includes an exogenous polynucleotide that includes a promoter and an operably linked coding sequence encoding an antimicrobial peptide, where expression of the coding region is controlled by a modulator polypeptide and is altered by a modulating agent, and where the coding region encodes an antimicrobial peptide.

Provided herein are genetically modified microbes. In one embodiment, a genetically modified microbe includes an exogenous polynucleotide that includes a pheromone-responsive region. In one embodiment, the pheromone-responsive region is derived from a conjugative plasmid from a member of the genus Enterococcus spp. The pheromone-responsive region includes a pheromone-responsive promoter and an operably linked coding region encoding an antimicrobial peptide. In one embodiment, a genetically modified microbe includes an exogenous polynucleotide that includes a promoter and an operably linked coding sequence encoding an antimicrobial peptide, where expression of the coding region is controlled by a modulator polypeptide and is altered by a modulating agent, and where the coding region encodes an antimicrobial peptide.

A method of fixating and stabilizing nitric oxide metabolites within fermented natural substance according to an embodiment of the present disclosure includes adding a fermentative strain to nitrogen-containing natural substance and carrying out fermentation. The fermentation efficiency is maximized by optimizing the fermentation conditions so that the productivity of nitric oxide metabolites is significantly improved. Thus, eating a fermented natural substance in which nitric oxide metabolites are fixated and stabilized by the method of the present invention would be helpful for maintaining the homeostasis of human body, in which nitric oxide synthase is either absent or insufficient, based on vasodilation and activation of a neurotransmitter and immune function as medical efficacy of nitric oxide.

A method of fixating and stabilizing nitric oxide metabolites within fermented natural substance according to an embodiment of the present disclosure includes adding a fermentative strain to nitrogen-containing natural substance and carrying out fermentation. The fermentation efficiency is maximized by optimizing the fermentation conditions so that the productivity of nitric oxide metabolites is significantly improved. Thus, eating a fermented natural substance in which nitric oxide metabolites are fixated and stabilized by the method of the present invention would be helpful for maintaining the homeostasis of human body, in which nitric oxide synthase is either absent or insufficient, based on vasodilation and activation of a neurotransmitter and immune function as medical efficacy of nitric oxide.

The disclosure provides novel microbial strains, such as Veillonella sp. strains, and compositions comprising the strains that are capable of converting lactate to propionate and acetate. The disclosure also provides compositions comprising the Veillonella sp. strains and lactate producing bacteria, such as Lactobacillus sp. strains and Bifidobacterium sp. strains. The disclosure further provides methods of improving athletic performance, enhancing exercise endurance and reducing inflammation in a subject upon administration of the disclosed strains or compositions.

The disclosure provides novel microbial strains, such as Veillonella sp. strains, and compositions comprising the strains that are capable of converting lactate to propionate and acetate. The disclosure also provides compositions comprising the Veillonella sp. strains and lactate producing bacteria, such as Lactobacillus sp. strains and Bifidobacterium sp. strains. The disclosure further provides methods of improving athletic performance, enhancing exercise endurance and reducing inflammation in a subject upon administration of the disclosed strains or compositions.