The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 2025
Filed:
Sep. 15, 2023
Yongqiang Wang, Luohe, CN;
Ziheng Jin, Luohe, CN;
Yanjun Wen, Luohe, CN;
Linzheng LI, Luohe, CN;
Tianyi Pan, Luohe, CN;
Yongqiang Wang, Luohe, CN;
Ziheng Jin, Luohe, CN;
Yanjun Wen, Luohe, CN;
Linzheng Li, Luohe, CN;
Tianyi Pan, Luohe, CN;
HENAN ZHONGDA HENGYUAN BIOTECHNOLOGY STOCK CO., LTD., Luohe, CN;
GLICO NUTRITION CO., LTD., Osaka, JP;
Abstract
The invention discloses a gardenia blue pigment with high brightness and low redness and a preparation method therefor, and belongs to the technical field of pigment extraction. Genipin, an enzymolysis product of gardenia extract, is used as a raw material. Genipin and amino acids (phenylalanine, tryptophan, glycine, or tyrosine) are weighed at a molar ratio of 1:(0.375-0.75), and subjected to a polymerization reaction under a conventional condition to generate a gardenia blue precursor. The gardenia blue precursor is oxidized to develop a color, refined by using ultrafiltration membrane, and finally spray-dried to obtain the gardenia blue pigment with high brightness, low redness, and low cost.