Anthocyanin-based pigment composition

• Main Authors: OHNO TOMOMICHI, ISHIDA MASAHIKO, FUKINO NOBUKO, YOKOYAMA TAKAMASA, OHARA TAKAYOSHI, HAMASAKI KOJI, IMAI MASASHI, KAKIZAKI TOMOHIRO
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2017
• Subjects: ADHESIVES; CHEMISTRY; DYES; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; HUMAN NECESSITIES; HYGIENE; LAKES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; PAINTS; POLISHES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES

The purpose of the present invention is to provide an anthocyanin-based pigment composition having high quality which has not been attained hitherto, at a higher efficiency and lower cost than a red cabbage pigment. This anthocyanin-based pigment composition is derived from a plant other than red cabbage and has the following features (A), (B), and (C): (A) an aqueous solution which contains the anthocyanin-based pigment composition and has a pH adjusted to 3 with a citric acid buffer (pH, 3.0) has a maximum absorption wavelength in the visible-light region of 500-550 nm; (B) when a pigment-composition-containing aqueous solution comprising the anthocyanin-based pigment composition, 0.2 mass% citric acid, 20 mass% ethanol, and water is prepared so as to have a color value E10% 1cm of 10 and poured in an amount of 1 mL into a 20-mL vial and this vial is closed, stored at 50 DEG C for 5 days, and thereafter held at 40 C for 30 minutes, then the total amount of methyl mercaptan, dimethyl disulfide, and dimethyl