胡萝卜素

ABSTRACT Fruit ripening is associated with a number of physiological and biochemical changes including degradation of chlorophyll, carotenoid biosynthesis, synthesis of flavor compounds, conversion of starch to sugars, cell wall solublisation and fruit softening.

果实的发育成熟涉及一系列复杂的生理生化变化，包括叶绿素的降解、类胡萝卜素的合成、淀粉向糖的转化、芳香性化合物的合成、细胞壁溶解和果实软化等。

The Power: Winter squash has huge amounts of vitamin C and beta-carotene, which may help protect against endometrial cancer.

健康因子：冬天的南瓜含有超多的维生素C和胡萝卜素，这些都可抵御子宫内膜癌。

Other foods containing ample amounts of beta carotene include carrots, cantaloupe, winter squash, sweet potatoes, sweet red peppers , apricots and mangoes

其它富含β胡萝卜素的食物包括：胡萝卜，甜瓜，白薯，红甜椒，杏和芒果等。

Other foods containing ample amounts of beta carotene include carrot s, cantaloupe, winter squash, sweet potatoes, sweet red peppers, apricots and mangoes

其它富含β胡萝卜素的食物包括：胡萝卜，甜瓜，白薯，红甜椒，杏和芒果等。

The recent researches have found that the xanthophyll has some functions such as protecting eyesight,antioxidation and anticanceration.

叶黄素属类胡萝卜素，近年研究发现其具有保护视觉、抗氧化、抗癌等作用。

A primary investigation into the separation of carotene, xanthophyll s and chlorophylls on reversed-phase C18 supercritical carbon dioxide chromatography was made in this study.

在本项研究中，应用反相C18固定相超临界CO2色谱对胡萝卜素、叶黄素和叶绿素的分离进行了初步的探索。

Xanthophyll oleoresin is obtained from fermented marigold flowers by extracting and refining. Its main components are carotenoids like xanthophylls and oils and wax existed in plants.

叶黄素树脂是由万寿菊鲜花经发酵、提取、精制而成，其主要成份是以叶黄素为主的各种类胡萝卜素和植物中原有的油脂和蜡。

Kind carotene is the lubricious source that makes blade presents orange, cyanine element is the lubricious source that makes blade presents red, xanthophyll is the lubricious source that makes blade presents yellow.

类胡萝卜素是使叶片呈现橙色的色源，花青素是使叶片呈现红色的色源，叶黄素是使叶片呈现黄色的色源。

Results The UV-B treatment caused the declines of chlorophyll content, soluble protein content and water content of leaves, besides, dose-effect was existed. The decline of 30 μW/cm^2 treatment was bigger than that of 15 μW/cm^2 treatment. The influences of UV-B radiation on carotenoid content and anthocyanidin content were similar; the change trends were declined firstly then increased. The UV-B treatment with two doses restrained the electron transport of PSⅡ, particularly; the inhibitory effect was biggest after treated 2h, and then this effect was declined in 4, 6 and 8 h, so the dose-effect was existed. The UV-B radiation with two doses restricted photosynthetic rate and the inhibitory effect increased with the increase of treatment time. The high dose treatment caused huge damage to membrane system, while the result of low dose treatment was not obvious.

结果］UV-B处理导致叶绿素、可溶性蛋白含量以及含水量都降低，且存在剂量效应，30μW/平方公分处理的降幅大于15μW/平方公分；UV-B辐射处理对类胡萝卜素含量的影响与花青素相同，均表现为先下降后上升的趋势，2种剂量间差异不大；2种剂量的UV-B处理均抑制了PSⅡ的电子传递，尤其是处理2 h的抑制作用最大，4、6和8 h的抑制作用有所缓解，且存在剂量效应；2种剂量的UV-B辐射均抑制了叶片的光合速率，随着照射时间的延长抑制效应加大；高剂量UV-B处理对膜系统的损伤较大，低剂量UV-B处理结果不明显。

Dunaliella salina is a unicellular biflagellate green alga and contains abundant β-carotene. Some papers reported that D. salina exhibited antioxidant activity and liver protection.

杜莎藻是一个具有双鞭毛的单细胞绿藻并且含有大量的β胡萝卜素，一些文献指出杜莎藻具有抗氧化及保肝的功能。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。