红米红

红米红在锦纶上的耐光牢度较差，基本在2级左右；在蚕丝上的耐光牢度稍好，基本达到3级左右。

The light fastness of Red rice pigment in polyamide fiber was poor , grade 2 or so , and that in silk basically reached about 3 .

研究结果表明：（1）红花黄不易被酸和碱水解，栀子黄易在碱性条件下水解；红米红易在酸性条件下水解。

The major results were shown in the following : ( 1 ) Saffron yellow was difficult to be hydrolyzed by acid and alkali , whereas Gardenia yellow and red rice pigment were easy to be hydrolyzed under alkaline and acidic conditions , respectively .

如果生活方式的改变不起作用，您可以尝试红米酵母（红紫色），来源于天然的司他汀，在诉诸制药版本之前。

If lifestyle changes don 't help , you could try red rice yeast ( Monascus purpureus ), a source of naturally occurring statins , before resorting to pharmaceutical versions .

红米红色素受pH值的影响导致共轭结构变化，在酸性条件下呈红色。（4）红花黄、栀子黄以及红米红对锦纶具有良好摩擦、皂洗、耐洗牢度，基本都在4级以上。

The pH value caused the change of the conjugated structure and made the pigment be reddish in the acidic conditions . ( 4 ) The color fastnesses to washing and rubbing of safflower yellow , gardenia yellow and red rice pigment in polyamide fiber had grade 4 or better .