Related Experiment Video
Updated: May 16, 2026

Colletotrichum fioriniae Development in Water and Chloroform-based Blueberry and Cranberry Floral Extracts
Published on: April 12, 2019
Anthocyanin-Flavonol Co-pigmentation in Blue Seed Coats of Ophiopogon jaburan
1Department of Biology, Faculty of Science, Kumamoto University, Kurokami, Kumamoto 860, Japan.
Abstract:
Kaempferol 3,4'-diglucoside causing the blueing effects on anthocyanin was isolated as pale yellow needles from the blue seed coats of Ophiopogon jaburan. Petunidin 3-O-β-(2(G)-glucosylrutinoside)-5'-glucoside (ophionin) and kaempferol 3,4'-diglucoside were present at about 3.3 × 10(-2) M and 3.7 × 10(-2) M, respectively, in the fresh seed coats. At the same concentration, the mixture of both pigments in citrate phosphate buffer solution (pH 5.6) showed stable blue color, and absorption spectrum of the mixture almost coincided with that of the fresh blue seed-coat.
Related Concept Videos
Seed Structure and Early Development of the Sporophyte
Monohybrid Crosses
Epistasis
Dihybrid Crosses
Incomplete Dominance
Pigmentation
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...

