Provided is a method for producing fermented blood sausage having high antioxidant activity, comprising (1) preparing hemoglobin antioxidant peptide through Plastein reaction; (2) brining and primarily fermenting livestock or poultry meat; (3) deodoring and breaking livestock or poultry blood; (4) filling and secondary fermentation; (5) obtaining a finished product after drying. Compared with prior arts, the present disclosure uses Plastein reaction of blood to prepare a highly active antioxidant peptide, the fermented blood sausage has a total antioxidant capacity up to 6.89 U/mg protein, with an increase rate of 58%. The blood was deodorized, and total amount of free amino acids in secondary fermentation by lactic acid bacteria in combination with yeasts reached 12.74 mg/g, with an increase rate of 42%, providing the fermented blood sausage with better flavor and chewiness. The present disclosure also provides a new approach to comprehensive utilization of livestock or poultry blood resources.

Provided is a method for producing fermented blood sausage having high antioxidant activity, comprising (1) preparing hemoglobin antioxidant peptide through Plastein reaction; (2) brining and primarily fermenting livestock or poultry meat; (3) deodoring and breaking livestock or poultry blood; (4) filling and secondary fermentation; (5) obtaining a finished product after drying. Compared with prior arts, the present disclosure uses Plastein reaction of blood to prepare a highly active antioxidant peptide, the fermented blood sausage has a total antioxidant capacity up to 6.89 U/mg protein, with an increase rate of 58%. The blood was deodorized, and total amount of free amino acids in secondary fermentation by lactic acid bacteria in combination with yeasts reached 12.74 mg/g, with an increase rate of 42%, providing the fermented blood sausage with better flavor and chewiness. The present disclosure also provides a new approach to comprehensive utilization of livestock or poultry blood resources.

The present invention relates to a composition with an antioxidant activity, comprising a first dry extract derived from plant cell cultures comprising superoxide dismutase of Sulfolobus solfataricus, a second dry extract derived from plant cell cultures comprising superoxide dismutase of Aeropyrum pernix and a third dry extract derived from plant cell cultures comprising superoxide dismutase from Deinococcus radiodurans, wherein said plant cell cultures are cultures of cells belonging to Solanum lycopersicum species.

The present invention relates to a composition with an antioxidant activity, comprising a first dry extract derived from plant cell cultures comprising superoxide dismutase of Sulfolobus solfataricus, a second dry extract derived from plant cell cultures comprising superoxide dismutase of Aeropyrum pernix and a third dry extract derived from plant cell cultures comprising superoxide dismutase from Deinococcus radiodurans, wherein said plant cell cultures are cultures of cells belonging to Solanum lycopersicum species.

According to one embodiment, a method for removing antimicrobial material from a composition includes providing a container that contains a plurality of carbon elements such as granules, rocks and sheets. The carbon elements are submerged with a liquid and a composition that includes an antimicrobial material is deposited in the container. The carbon elements are configured to remove the antimicrobial material from the composition. The level of the liquid in the container is monitored and controlled to maintain a submerged condition of the carbon elements.

According to one embodiment, a method for removing antimicrobial material from a composition includes providing a container that contains a plurality of carbon elements such as granules, rocks and sheets. The carbon elements are submerged with a liquid and a composition that includes an antimicrobial material is deposited in the container. The carbon elements are configured to remove the antimicrobial material from the composition. The level of the liquid in the container is monitored and controlled to maintain a submerged condition of the carbon elements.

The invention provides a curing agent comprising a plant-based nitrite derived from plant material comprising nitrate and a process for preparing the curing agent comprising contacting a plant material with an organism capable of converting nitrate to nitrite. The curing agent can be used to preserve or cure meat or meat products.

The invention provides a curing agent comprising a plant-based nitrite derived from plant material comprising nitrate and a process for preparing the curing agent comprising contacting a plant material with an organism capable of converting nitrate to nitrite. The curing agent can be used to preserve or cure meat or meat products.

The Lactobacillus curvatus strain deposited as DSM18775 is used as a biopreservative culture in a wide range of meat products due to its production of bacteriocin. The present invention relates to Lactobacillus curvatus strains having an extended lag phase of at least 24 hours at 30° C. relative to DSM18775. In a presently preferred embodiment, the strains are mutants of DSM18775, such as the Lactobacillus curvatus strain deposited as DSM32590 and the Lactobacillus curvatus strain deposited as DSM 32591. Further, the invention relates to a method for inhibiting Listeria in a food product comprising adding bacteria of a Lactobacillus curvatus strain according to the invention to a food product in a concentration of at least 10.sup.5 CFU/g.

The Lactobacillus curvatus strain deposited as DSM18775 is used as a biopreservative culture in a wide range of meat products due to its production of bacteriocin. The present invention relates to Lactobacillus curvatus strains having an extended lag phase of at least 24 hours at 30° C. relative to DSM18775. In a presently preferred embodiment, the strains are mutants of DSM18775, such as the Lactobacillus curvatus strain deposited as DSM32590 and the Lactobacillus curvatus strain deposited as DSM 32591. Further, the invention relates to a method for inhibiting Listeria in a food product comprising adding bacteria of a Lactobacillus curvatus strain according to the invention to a food product in a concentration of at least 10.sup.5 CFU/g.