(EN) The purpose of the present invention is to provide a monascus dye having improved lightfastness and suppressed fading due to light exposure. In the monascus dye production process, a dye component shown by general formula (1) is generated by causing monascorubrin and/or rubropunctatin to be jointly present with cystine and/or cysteine; a monascus dye containing this dye component can effectively suppress fading due to light exposure and has excellent lightfastness.
(ZH) 本发明的目的在于,提供一种抑制光暴露导致的褪色、耐光性提高的红曲色素。在红曲色素的制造工序中,通过使红曲红素(monascorubrin)和/或红斑素(rubropunctatin)和胱氨酸和/或半胱氨酸共存而生成通式(1)所示的色素成分,含有该色素成分的红曲色素可以有效地抑制光暴露导致的褪色,具有优异的耐光性。