xanthophyll

简明释义

英[ˈzænθəˌfɪl]美[ˈzænθəˌfɪl]

n. [生化] 叶黄素

英英释义

单词用法

同义词

反义词

例句

1.The effect of different processing technology on xanthophyll and carotene content of Stylo, different processing technology, different store condition and different store time was studied.

探讨不同加工方法、不同贮存条件及贮存时间对柱花草叶黄素和胡萝卜素含量的影响。

2.Still others have searched the world over for berries, flowers or leaves of high xanthophyll content.

还有其他人在世界各地寻找含有大量叶黄素的浆果、花或叶。

3.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。

4.Xanthophyll is one of the carotenoid pigments. 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。

5.The heat dissipation depended on xanthophyll cycle has been wildly concerned recently.

依赖于叶黄素循环的热耗散作用近年来受到普遍的关注。

6.When it was dried over the middle stoving temperature, the xanthophyll content and carotene content was higher than those over the high stoving temperature.

中温烘干后叶粉中叶黄素和胡萝卜素含量均高于高温处理。

7.The consequences of these findings for the mechanism and regulation of xanthophyll conversion in the thylakoid membrane will be discussed.

的后果，这些研究结果的机制和规范的转换中的叶黄素类囊体膜，将讨论。

8.Carrots and spinach are rich in xanthophyll (叶黄素), which can benefit eye health.

胡萝卜和菠菜富含xanthophyll（叶黄素），对眼睛健康有益。

9.In addition to chlorophyll, plants also produce xanthophyll (叶黄素) during the growing season.

除了叶绿素，植物在生长季节也会产生xanthophyll（叶黄素）。

10.The bright yellow color of autumn leaves is due to the presence of xanthophyll (叶黄素).

秋天树叶鲜艳的黄色是由于存在xanthophyll（叶黄素）。

11.Some studies suggest that xanthophyll (叶黄素) may help reduce the risk of macular degeneration.

一些研究表明，xanthophyll（叶黄素）可能有助于降低黄斑变性风险。

12.Many green plants contain xanthophyll (叶黄素) as a pigment that helps in photosynthesis.

许多绿色植物含有xanthophyll（叶黄素）作为帮助光合作用的色素。

作文

In the world of plant biology, pigments play a crucial role in the process of photosynthesis and in determining the color of various plants. Among these pigments, one that stands out is xanthophyll, which is a yellow pigment found in the leaves of many plants. The significance of xanthophyll extends beyond mere coloration; it is vital for the health and efficiency of plants in converting sunlight into energy. This essay will explore the importance of xanthophyll, its functions, and its benefits to both plants and humans.Firstly, xanthophyll is a carotenoid, a class of pigments that are responsible for the bright colors in many fruits and vegetables. Unlike chlorophyll, which absorbs blue and red light, xanthophyll absorbs blue light and reflects yellow light, giving plants their characteristic hues. This pigment is essential for the photosynthesis process as it helps in capturing light energy that is then used to convert carbon dioxide and water into glucose and oxygen.Moreover, xanthophyll plays a protective role in plants. During photosynthesis, especially under high light conditions, plants can experience oxidative stress due to the excess energy absorbed. xanthophyll helps to dissipate this excess energy as heat, thereby preventing damage to the plant's cellular structures. This protective mechanism is crucial for the survival of plants in varying light conditions, allowing them to thrive even in environments with intense sunlight.Furthermore, the benefits of xanthophyll extend beyond the plant kingdom. For humans, xanthophyll is recognized for its potential health benefits. It is found in high concentrations in leafy greens such as spinach and kale, as well as in egg yolks. Research has indicated that xanthophyll may play a role in eye health, particularly in reducing the risk of age-related macular degeneration (AMD). This condition is a leading cause of vision loss in older adults, and studies suggest that diets rich in xanthophyll can help protect against this disease by filtering harmful blue light and reducing oxidative stress in the retina.Additionally, xanthophyll has antioxidant properties, which means it can help neutralize free radicals in the body. Free radicals are unstable molecules that can cause cellular damage and contribute to various chronic diseases, including cancer and heart disease. By incorporating foods rich in xanthophyll into our diets, we can enhance our overall health and potentially lower the risk of these diseases.In conclusion, xanthophyll is more than just a pigment that adds color to our world; it is an essential component of plant life and offers numerous benefits to human health. Its role in photosynthesis, protection against oxidative stress, and potential health benefits highlight the importance of this remarkable pigment. By understanding and appreciating the role of xanthophyll, we can better appreciate the intricate relationships between plants and humans, and the ways in which we can support our health through nature's bounty.

在植物生物学的世界中，色素在光合作用过程中以及决定各种植物的颜色方面发挥着至关重要的作用。在这些色素中，一个突出的色素是xanthophyll，这是一种在许多植物的叶子中发现的黄色色素。xanthophyll的重要性不仅仅在于其颜色；它对植物在将阳光转化为能量的健康和效率至关重要。本文将探讨xanthophyll的重要性、其功能以及对植物和人类的好处。首先，xanthophyll是一种类胡萝卜素，这是一类负责许多水果和蔬菜鲜艳颜色的色素。与吸收蓝光和红光的叶绿素不同，xanthophyll吸收蓝光并反射黄色光，从而赋予植物特有的色调。这种色素对光合作用过程至关重要，因为它帮助捕捉光能，然后用于将二氧化碳和水转化为葡萄糖和氧气。此外，xanthophyll在植物中还发挥着保护作用。在光合作用过程中，尤其是在高光条件下，植物可能会因吸收过多能量而经历氧化应激。xanthophyll帮助将多余的能量以热量的形式散发出去，从而防止对植物细胞结构的损害。这种保护机制对植物在不同光照条件下的生存至关重要，使它们即使在强光环境中也能茁壮成长。此外，xanthophyll的好处超越了植物王国。对于人类而言，xanthophyll因其潜在的健康益处而受到认可。它在菠菜和羽衣甘蓝等绿叶蔬菜以及蛋黄中浓度较高。研究表明，xanthophyll可能在眼睛健康中发挥作用，特别是在降低年龄相关性黄斑变性（AMD）的风险方面。这种情况是老年人视力丧失的主要原因，研究表明，富含xanthophyll的饮食可以通过过滤有害的蓝光和减少视网膜的氧化应激来帮助保护免受这种疾病的影响。此外，xanthophyll具有抗氧化特性，这意味着它可以帮助中和体内的自由基。自由基是会导致细胞损伤并促进多种慢性疾病（包括癌症和心脏病）发展的不稳定分子。通过将富含xanthophyll的食物纳入我们的饮食中，我们可以增强整体健康，并可能降低这些疾病的风险。总之，xanthophyll不仅仅是给我们世界增添颜色的色素；它是植物生命的一个基本组成部分，并为人类健康提供了众多好处。它在光合作用、对抗氧化应激的保护作用以及潜在的健康益处突显了这种非凡色素的重要性。通过理解和欣赏xanthophyll的作用，我们可以更好地理解植物与人类之间复杂的关系，以及我们如何通过大自然的恩赐来支持我们的健康。