A disinfectant system comprises a first part comprising a first reagent in a carrier medium; and a second part which is miscible with the first part and which comprises a second reagent in a carrier medium. The first reagent and the second reagent will react when mixed to provide a chlorine dioxide disinfecting composition. The first part or the second part further comprises an anthocyanin, anthocyanidin or betanin dyestuff, which oxidises in the presence of chlorine dioxide to produce a visible colour change upon mixing of the first reagent with the second reagent, and the colour change does not occur upon exposure of the dyestuff-containing part to a disinfecting composition comprising hydrogen peroxide and/or peracetic acid.

A sterilization process by means of heat treatment to preserve the ink of coleoid cephalopod molluscs includes the steps of homogenizing and first heat treating (1) the ink in a reactor for pasteurising treatment in which a temperature of at least 70° C. is attained for over 10 minutes; and cooling (2) the homogenized ink in a tank set to a temperature of below 30° C. and retaining the ink in the tank to lower its temperature. The process also includes the steps of continuing by filling, turning, blowing and marking (3) the expiry dates; and second heat treating (4) the ink in an autoclave in which a heat treatment is performed to achieve a sterilization temperature greater than or equal to 110° C. for a predetermined time based upon the quantity to be canned.

A sterilization process by means of heat treatment to preserve the ink of coleoid cephalopod molluscs includes the steps of homogenizing and first heat treating (1) the ink in a reactor for pasteurising treatment in which a temperature of at least 70° C. is attained for over 10 minutes; and cooling (2) the homogenized ink in a tank set to a temperature of below 30° C. and retaining the ink in the tank to lower its temperature. The process also includes the steps of continuing by filling, turning, blowing and marking (3) the expiry dates; and second heat treating (4) the ink in an autoclave in which a heat treatment is performed to achieve a sterilization temperature greater than or equal to 110° C. for a predetermined time based upon the quantity to be canned.

The purpose of the present invention is to provide: a gardenia blue pigment which contains a product of a reaction between genipin and a compound having a primary amino group, and which offers a bright, fresh blue color tone having reduced redness; and a method for producing same. This gardenia blue pigment, which offers a bright, fresh blue color tone having reduced redness, is obtained by carrying out a first step in which genipin and at least one peptide selected from the group consisting of soybean peptides, sesame peptides, and rice peptides are reacted in a solvent without supplying an oxygen-containing gas, and a second step in which a reaction liquid obtained in the first step is processed under an oxygen-containing gas supply.

The purpose of the present invention is to provide: a gardenia blue pigment which contains a product of a reaction between genipin and a compound having a primary amino group, and which offers a bright, fresh blue color tone having reduced redness; and a method for producing same. This gardenia blue pigment, which offers a bright, fresh blue color tone having reduced redness, is obtained by carrying out a first step in which genipin and at least one peptide selected from the group consisting of soybean peptides, sesame peptides, and rice peptides are reacted in a solvent without supplying an oxygen-containing gas, and a second step in which a reaction liquid obtained in the first step is processed under an oxygen-containing gas supply.

Provided is a Gardenia pigment preparation that can stably maintain a dissolved state of Gardenia blue pigment in an acidic range. The Gardenia pigment preparation comprises Gardenia blue pigment and lecithin.

Provided is a Gardenia pigment preparation that can stably maintain a dissolved state of Gardenia blue pigment in an acidic range. The Gardenia pigment preparation comprises Gardenia blue pigment and lecithin.

The present invention provides compounds isolated from avocado seeds for use as a natural colorant in edible materials. The compounds of the invention are useful for coloring edible materials red, orange or yellow. The invention also provides compositions and methods for coloring edible materials to a desired color such as red, orange or yellow.

The present invention provides compounds isolated from avocado seeds for use as a natural colorant in edible materials. The compounds of the invention are useful for coloring edible materials red, orange or yellow. The invention also provides compositions and methods for coloring edible materials to a desired color such as red, orange or yellow.

The invention provides a novel class of natural red azaphilone pigments: cavernamines and their hydroxyl-derivatives; as well as the orange/yellow precursor cavernine. Additionally, methods for their production by fermentation using a fungal strain belonging to the species Aspergillus cavernicola, is provided; and further the use of the novel pigments as a colouring agent for food items and/or non-food items, and for cosmetics. The cavernamine pigments have the structure of Formula I or II, the hydroxyl-derivative of said cavernamine pigment has the structure of Formula III: Cavernine pigments having the structure of Formula IV or V are precursors f the cavernamine pigments I-III above.