The present invention is related to the field of reddening of food products. In particular the present invention relates to the preservation or optimization of nitrate reductase activity of frozen and/or dried lactic acid bacteria cultures or Micrococcaceae cultures (particularly cultures comprising one or more species of Staphylococcus having nitrate reductase activity).

The present invention is related to the field of reddening of food products. In particular the present invention relates to the preservation of nitrate reductase activity of frozen and/or dried lactic acid bacteria culture or Micrococcaceae culture.

A method of testing a sample for the presence of nitrate or nitrite, the method comprising the steps of: forming a mixture by contacting the sample with a composition comprising hydrogen peroxide or a hydrogen peroxide precursor and a fluorescent indicator precursor capable of forming a fluorescent indicator in the presence of peroxynitrite; irradiating the mixture; and measuring fluorescence from the fluorescent indicator. The method may be carried out using a device in which the mixture in a channel or chamber 101 of a microfluidic device is irradiated by light from light source 103 and emission from the fluorescent indicator is detected by photodetector 105.

The present invention is related to the field of reddening of food products. In particular the present invention relates to the preservation or optimization of nitrate reductase activity of frozen and/or dried lactic acid bacteria cultures or Micrococcaceae cultures (particularly cultures comprising one or more species of Staphylococcus having nitrate reductase activity).

A lettuce cultivar, designated Lockwood, is disclosed. The invention relates to the seeds, plants and plant parts of lettuce cultivar Lockwood and to methods for producing a lettuce plant by crossing the cultivar Lockwood with itself or another lettuce cultivar. The invention further relates to methods for producing a lettuce plant containing in its genetic material one or more transgenes and to the transgenic lettuce plants and plant parts produced by those methods. This invention also relates to lettuce cultivars or breeding cultivars and plant parts derived from lettuce cultivar Lockwood, to methods for producing other lettuce cultivars, lines or plant parts derived from lettuce cultivar Lockwood and to the lettuce plants, varieties, and their parts derived from the use of those methods. The invention further relates to hybrid lettuce seeds, plants, and plant parts produced by crossing cultivar Lockwood with another lettuce cultivar.

A lettuce cultivar, designated Omega 73, is disclosed. The invention relates to the seeds, plants and plant parts of lettuce cultivar Omega 73 and to methods for producing a lettuce plant by crossing the cultivar Omega 73 with itself or another lettuce cultivar. The invention further relates to methods for producing a lettuce plant containing in its genetic material one or more transgenes and to the transgenic lettuce plants and plant parts produced by those methods. This invention also relates to lettuce cultivars or breeding cultivars and plant parts derived from lettuce cultivar Omega 73, to methods for producing other lettuce cultivars, lines or plant parts derived from lettuce cultivar Omega 73 and to the lettuce plants, varieties, and their parts derived from the use of those methods. The invention further relates to hybrid lettuce seeds, plants, and plant parts produced by crossing cultivar Omega 73 with another lettuce cultivar.

A lettuce cultivar, designated Omega 73, is disclosed. The invention relates to the seeds, plants and plant parts of lettuce cultivar Omega 73 and to methods for producing a lettuce plant by crossing the cultivar Omega 73 with itself or another lettuce cultivar. The invention further relates to methods for producing a lettuce plant containing in its genetic material one or more transgenes and to the transgenic lettuce plants and plant parts produced by those methods. This invention also relates to lettuce cultivars or breeding cultivars and plant parts derived from lettuce cultivar Omega 73, to methods for producing other lettuce cultivars, lines or plant parts derived from lettuce cultivar Omega 73 and to the lettuce plants, varieties, and their parts derived from the use of those methods. The invention further relates to hybrid lettuce seeds, plants, and plant parts produced by crossing cultivar Omega 73 with another lettuce cultivar.

A lettuce cultivar, designated Lockwood, is disclosed. The invention relates to the seeds, plants and plant parts of lettuce cultivar Lockwood and to methods for producing a lettuce plant by crossing the cultivar Lockwood with itself or another lettuce cultivar. The invention further relates to methods for producing a lettuce plant containing in its genetic material one or more transgenes and to the transgenic lettuce plants and plant parts produced by those methods. This invention also relates to lettuce cultivars or breeding cultivars and plant parts derived from lettuce cultivar Lockwood, to methods for producing other lettuce cultivars, lines or plant parts derived from lettuce cultivar Lockwood and to the lettuce plants, varieties, and their parts derived from the use of those methods. The invention further relates to hybrid lettuce seeds, plants, and plant parts produced by crossing cultivar Lockwood with another lettuce cultivar.