类胡萝卜素

Effects of different sun-shading treatments plastid pigment on flue-cured tobacco were researched.

研究了不同遮阳处理对不同生育期及不同部位烟叶叶绿素及类胡萝卜素的含量影响。

A plastid that contains pigments other than chlorophyll, usually yellow or orange carotenoids.

有色体，色素体除了叶绿素外的含色素的质粒，通常为黄色或橙色的类胡萝卜素

The contents of Chla and Car were sensitive to low temperature stress, it seems that they were vulnerable to low temperature stress and partly decomposed. Relatively, the content of Chlb changed little. The ratio of Chla/b had positive linear correlation with temperature, which meant the photosynthetic ability of podocarpus fleuryi Hickel seedlings declined under winter low temperature stress.

叶片中叶绿素a和类胡萝卜素含量对低温胁迫反应较为敏感，容易遭受低温胁迫而部分地分解破坏，含量下降，而叶绿素b则相对变化较小，Chla／b值呈现与温度的线性正相关，显示了长叶竹柏幼苗在冬季低温胁迫下光合能力的下降情况。

In terms of integrated exploitation and utilization for carrot, the drying method of carrot pomace and the extracting technology of carotenoids in the pomace were studied.

从胡萝卜综合开发利用角度出发，本文对胡萝卜榨汁后的胡萝卜渣的干燥方法以及从中提取类胡萝卜素的工艺进行了研究，以期提高胡萝卜资源的利用率，增加经济效益。

Carotenoids act in vivo not only as provitamin A but also as antioxidant agents to prevent several diseases.

类胡萝卜素不仅能作为维生素A的来源，而且能在人体内发挥抗氧化的作用，预防多种疾病的发生。

However, the ratios of chl a/ch b and carotenoids/chls were dropped due to drought, independently of sampling unit.

然而，不管是用单位叶面积的色素含量或是单位叶鲜重的色素含量计算而来的叶绿素a和叶绿素b的比率以及类胡萝卜素和总叶绿素的比率对土壤干旱引起的变化趋势是一致的，都表现为降低。

Total sugar of sarcocarp and chlorophyll of pericarp increased firstly, and then decreased afterward along with altitude; Titratable acidity, ascorbicacid and anthocyanin of pericarp were increased along with altitude; The content of protein increased firstly and decreased afterward along with altitude; Carotenoid of pericarp were decreased along with altitude.

果肉总糖和果皮叶绿素含量随海拔高度升高先升高后降低；可滴定酸、维生素C和果皮花青苷含量均随海拔升高而升高；蛋白质在1720m处最大，1420m处最小；果皮类胡萝卜素随海拔升高而降低。

Carotenoids ; absorption model ; absorption approach ; absorption mechanism ; selective absorption

类胡萝卜素；吸收模型；吸收途径；吸收机制；选择性吸收

He noted that an enzyme in the human pathway, squalene synthase, was strikingly similar to one that led to the production of the carotenoid in Staph.

他指出，在人体通路中的一种酶，即角鲨烯合酶，与葡萄球菌生产类胡萝卜素过程中的一种酶有惊人的相似之处。

Uses: Lutein, and its naturally occurring stereoisomer zeaxanthin, is used as part of a general carotenoid defense against oxidative stress, whether solar or metabolic.

用途： 叶黄素和其立体异构体玉米黄质，作为常规类胡萝卜素的一部分，用于防止来自日光的或者来自新陈代谢的氧化压力。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。