查询词典 vitamin C

Vitamin C can interrupt the process of melanin production could have been generated to prevent further oxidation of DOPA ammonia was reduced to dopa, and can reduce serum levels of copper oxide, affecting the activity of tyrosine plum, thereby interfering with the biosynthesis of melanin, if the want to make the skin and fair complexion, we might eat more foods rich in vitamin C such as tomatoes, oranges, lemons, hawthorn, citrus and so on.

维生素C能中断黑色素生成的过程本来是可以防止的多巴氨进一步氧化减少到多巴，并能降低血清铜氧化，影响酪氨酸梅的活性，从而与黑色素的生物合成，如果干扰是想使皮肤白皙，我们可能会吃更多的食物含有丰富的维生素C，如西红柿，橙子，柠檬，山楂，柑桔等。

"But that isn't what you want when you are trying to eliminate cancer cells," said Heaney, who notes that cancer patients should eat a healthy diet, which includes foods rich in vitamin C. It is use of large doses of over-the-counter vitamin C that is worrisome, he says.

"但是，这不是你想要当你正试图消除癌细胞，说："希尼，谁指出，癌症患者应该多吃健康的饮食，其中包括食物丰富的维生素C是使用大剂量超柜台维生素C这是令人担忧，他说。

Vitamin C – in addition to all the other benefits of Vitamin C it has also been shown to reduce melanin formation.

维生素C -此外，所有其他的好处，维生素C ，它也被证明，以减少黑色素的形成。

It may participate in many biochemical reactions in the human body, can be partially oxidized deoxy-vitamin C, this process is reversible, so the oxidation of vitamin C is also a reducing agent.

它可参加人体内的很多生化反应，可部分氧化生成去氧维生素C，这一过程又是可逆性的，所以维生素C也是一种氧化还原剂。

Rich vitamin C still is contained in fruit vinegar, vitamin C is a kind of powerful antioxidant, can prevent cellular canceration and cellular consenescence, still can prevent strong carcinogenic substance inferior the saltpetre amine synthesis inside body, make inferior of saltpetre amine decompose, make inferior saltpetre amine drops in the content inside body, protective airframe is avoided suffer enroach on, prevent the happening of the cancer such as cancer of cancer of the stomach, esophagus.

果醋中还含有丰富的维生素C，维生素C是一种强大的抗氧化剂，能防止细胞癌变和细胞衰老，还可阻止强致癌物亚硝胺在体内的合成，促使亚硝胺的分解，使亚硝胺在体内的含量下降，保护机体免受侵害，防止胃癌。食道癌等癌症的发生。

Vitamin C requirements It is extremely important that your guinea pigs receive enough vitamin C each day to prevent scurvy.

维生素 C 需求是极为重要的，你的豚鼠必须每天得到足够的维生素 C 来防止坏血病。

In order to study the protection of β-carotene and vitamin C against the transformation of human lung fibroblasts cell induced by nickel sesquioxide, HLF cells were treated repeatedly by different concentrations of Ni2O3 in vitro.β-carotene (5.4mg/L) and vitamin C(1.8mg/L) were added into the media containing Ni2O3 (1.0mg/L) respectively. The identification of malignancy of the transformation of HLF cell was carried out by the tests of ConA and the growth on semisolid agar culture. The results showed that Ni2O3 could induce the malignant transformation of HLF cell. The transformed cell proliferated rapidly.

为了探讨三氧化二镍(Ni2O3)诱导人肺成纤维细胞恶性转化作用以及β-胡萝卜素和维生素C的保护作用，用不同浓度的Ni2O3在体外多次处理HLF细胞，利用刀豆凝集素A凝集实验和软琼脂集落形成实验进行转化细胞的恶性鉴定；同时添加β-胡萝卜素(5.4mg/L)和维生素C的食物(1.8mg/L)，观察对Ni2O3转化作用的影响。

The results indicated that with the increasing of storage time, the leaves etiolated, contents of crude-fiber increased, while vitamin C, chlorogenic acid decreased, nitrate contents up to the maximum at the 3th day after storage , then decreased gradually. Stored at 2℃, the contents of chlorophyll, vitamin C, chlorogenic acid were higher, nitrate and crude-fiber contents were lower. The lower of membrane permeability and MDA content, the higher activity of SOD significantly delayed senescence process and prolonged storage life of Taraxacum mongolicum.

结果表明：采后蒲公英随着贮藏天数的增加，叶片逐渐黄化，粗纤维的含量升高，维生素C和绿原酸含量下降，硝酸盐含量先升高后降低；2℃下贮藏能够使采后蒲公英具有较高的叶绿素、维生素C、绿原酸，较低的硝酸盐和粗纤维含量，较低的细胞膜渗透率、MDA含量和较高的SOD活性，显著地延缓其衰老进程，延长贮藏寿命。

In fruits and vegetables, tomatoes are the highest content of vitamin C a, so to ensure a tomato a day can meet the daily requirement of vitamin C.

在水果和蔬菜中，西红柿是维生素C含量最高的一种，所以每天至少保证一个西红柿，可以满足一天所需的维生素C。

Although an apple has a low Vitamin C content, it has antioxidants and falconoid which enhances the activity of Vitamin C thereby helping to lower the risks of colon cancer, heart attack and stroke.

尽管苹果的维他命C含量不高，但是其所含的抗氧化剂和类黄酮能提高维他命C的活性，进而有助于降低直肠癌，心脏病和中风的发生率。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。