然而，至今仍不完全清楚，为什么有些树木倾向于制造红色素，而有些树木不去刻意制造色素，但还是会呈现出橙色或黄色。
What is still not fully understood, however, is why some trees resort to producing red pigments while others don't bother, and simply reveal their orange or yellow hues.
这听起来很矛盾，因为这一假设背后的理念是，树叶在秋天产生的红色素是用于保护叶绿素这种吸收光的化学物质，以免它吸收过多的光。
It sounds paradoxical, because the idea behind this hypothesis is that the red pigment is made in autumn leaves to protect chlorophyll, the light-absorbing chemical, from too much light.
确定了高粱红色素的抗氧化作用。
研究了草莓红色素的稳定性。
The stability of red pigment from strawberries was investigated in this paper.
本实验中高粱红色素的提取率为7.76%。
The extract rate of sorghum pigment in this experiment is 7.76%.
它包含了水，石灰，树木保护剂和食用红色素。
It contains water, hydrated lime, a tree protectant and red food color.
桑椹红色素是一种安全、无毒的食用天然色素。
Mulberry red pigment is a safety, non -toxic edible natural pigment.
桑椹红色素是一种安全、无毒的食用天然色素。
Mulberry red pigment is a safety, not poisonous edible natural pigment.
甜菜黄素和甜菜青素是甜菜红色素的两个亚类。
Betaxanthins and betacyanins are the two subclasses of betanin pigment.
研究了新鲜魔芋块茎天然褐变红色素固色方法。
Browning rule and diversified color stabilizing methods in fresh konjac tuber process has been studied.
总体来看，紫竹梅紫红色素具有较好的稳定性。
It is concluded that the purple pigment has very good stability.
确定微波萃取红花羊蹄甲花红色素的最佳试验条件。
To definite the optimum experimental condition for microwave extraction red pigment of Baubinia blakeana Dunn flower .
本文以胭脂萝卜为原料进行食用红色素的提取研究。
A way of separating some comestible red pigment from the red turnip is studied by this paper.
从李子皮中提取的天然红色素是一种安全无毒的食用色素。
The natural haematochrome extracted from plum skin is a kind of safe and non - poisonous colorant.
本文研究了用d 61树脂吸附和分离萝卜红色素的方法。
A method of adsorbing and separating Radish red pigment with D61 resin was studied.
萝卜红色素是从十字花科植物红皮红心萝卜中提取精制而得。
Red Radish color is extracted from the roots of the edible Red Radish of the Cruciferae family.
研究了从火炬树果穗中提取红色素的方法，并对其进行精制。
A method of extracting and purification natural red pigment from ear of torch tree is proposed.
本研究可为高粱红色素的合理开发和利用提供一定的参考依据。
A reference method was provided for reasonable exploitation and utilization of sorghum pigment.
但其他的科学家却提出，红色素在于避免树叶受到阳光的侵害。
But other scientists have suggested that the red pigment defends leaves against sun damage.
桑椹红色素微胶囊产品为紫色小颗粒，外形颗粒圆整，大小均匀。
The mulberry red pigment capsule is purple granule with round, smooth, equal shape.
本论文较系统研究了以胭脂虫为原料制备胭脂虫红色素的工艺过程。
This subject use cochineal as raw material, red pigment composition of extraction and purification systems - depth study.
红曲红色素与连二亚硫酸钠在碱性溶液中反应，制得水溶性红色素。
The water - soluble Monascus yellow pigment was prepared from the Monascus red pigment and sodium dithionite in base solution.
本文还进行了加入辣椒籽提取物来改善辣椒红色素稳定性的实验研究。
In order to improve the stability of capsanthin, the addition of pepper seed extraction was also carried out.
该方法可结合现行的辣椒红色素生产工艺，具备一定的工业化可行性。
This method can be combined with the available production process of red chilli colour.
从赤豆中提制出一种粉状天然食用红色素，命名为“赤豆红色素” 。
A powdered natural red food pigment was extracted and refined from phaseolus angularis Wight.
该产品是一种安全、性能优良的天然防腐剂，经济价值高于红曲红色素。
This product is a safe and excellent natural preservative. Its economic value is higher than monascus red coloring matter.
萝卜红色素萝卜红色素是从十字花科植物红心萝卜中提取的天然食用色素。
Radish red Color It is a kind of natural edible pigment extracted from crucifer red radish.
以荔枝壳为原料，在酸性条件下浸提荔枝壳红色素，并对其稳定性进行了研究。
The stability of the red pigment in litchi shell, which was extracted by acidic solution leaching from litchi shell, was studied.
以荔枝壳为原料，在酸性条件下浸提荔枝壳红色素，并对其稳定性进行了研究。
The stability of the red pigment in litchi shell, which was extracted by acidic solution leaching from litchi shell, was studied.
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