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急急急急求英语高手翻译！！！

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Due to their importance as natural pigments and health-promoting bioactive compounds,The need for reliable data on food carotenoids is widely recognised. accurate carotenoid analysis has been pursued for years and considerable progress has been achieved, but incorrect results can still be perceived in some published work. it is not the intention of this brief review to present the numerous methods, modifications and procedures proposed for carotenoid analysisthis information is compiled and described in recent review articles[1-2]. Instead, the focus is on the reliability of the analytical data.
trends in carotenoid analysis reflect not only advances in analytical methodology and instrumentation, but also the greater understanding of the role of these compounds in human health. total carotenoid content, use in earlier years mainly to assess carotenoids as natural colourants, is on longer considered adequate, for a long time quantification of only B carotene or the maior provitamin A carotenoids was carried out. with the mounting evidence associating carotenoids with reduction of the risk of developing degenerative diseases, which is independent of the provitamin A activity, both provitamin A and nonprovitamin A carotenoids are being quantified, sometimes up to the separation and quantification of all-E-(stans) and Z-(cis) isomers. databases on carotenoid composition [3-5] are in terms of the carotenoids demonstrated to be important to human health（fig.1）.
critical steps and sources of errors
to guarantee the reliability of the analytical data, the analyst must know the nature of food carotenoids and the possible errors that can be incurred in their identification and quantification. sources of errors in this inherently difficult analysis and means to avoid them have been discussed in detail in previous publications[6,7]. in this update, emphasis is given to persisting errors and recently raised analytical concerns as perceived from the literature.

Answer 1

由于他们的重要性作为自然颜料和健康促进生物活性的化合物，对可靠的数据的需要关于食物类胡萝卜素广泛被认可。 准确类胡萝卜素分析多年来被追求，并且重要进步达到了，但是不正确结果在一些出版工作可能仍然被察觉。 它不是这简要的回顾的意图提出许多方法，对于类胡萝卜素analysisthis信息和做法提议的修改在最近评论文章[1-2上]被编写并且被描述。 反而，焦点在分析数据的可靠性。
在类胡萝卜素分析的趋向反射在分析方法学和仪器工作的不仅前进，而且对这些化合物的角色的更加伟大的理解在人类健康。 总类胡萝卜素内容，用途在早期主要估计类胡萝卜素作为自然染料，在长期认为充分，长期仅B胡萝卜素的量化或maior维生素A类胡萝卜素被执行了。 当铁证同类胡萝卜素联系在一起有时开发退化疾病的风险的减少，是维生素A活动独立，维生素A，并且nonprovitamin A类胡萝卜素被定量，由所有E (stans)和Z- (同边)异构体的分离和量化决定。 在类胡萝卜素构成[3-5的]数据库是根据被展示的类胡萝卜素是重要对人类健康（fig.1）。
关键措施和误差源
要保证分析数据的可靠性，分析员必须知道的食物类胡萝卜素和可能的错误的本质在他们的证明和量化可以被招致。 误差源在这个本质上地困难的分析和手段的避免他们在早先出版物[6,7]详细被谈论了。 在这次更新，强调给予坚持的错误和最近提出的分析询问如被察觉从文学。

Answer 2

由于其重要的天然色素和促进健康的生物活性化合物，需要可靠的数据对食品类胡萝卜素的广泛认同。准确的类胡萝卜素的分析已经开展多年，并取得了重大进展，但不正确的结果仍可以被视为在一些出版工作。它是不打算这个简短的审查提出了许多方法，修改和程序提出了类胡萝卜素analysisthis资料汇编和描述在最近审查第[ 1-2 ] 。相反，重点是可靠性的分析数据。
类胡萝卜素的趋势分析不仅反映进展分析方法和检测仪器，而且还更多地了解所发挥的作用这些化合物在人体健康。总类胡萝卜素含量，使用前几年主要是类胡萝卜素，以评估自然着色，就不再是考虑充分，很长一段时间只能量化乙胡萝卜素或维生素阿约尔类胡萝卜素进行。与越来越多的证据表明关联类胡萝卜素与减少风险的发展中国家退行性疾病，它是独立于维生素活动，包括维生素A和胡萝卜素nonprovitamin阿正量化，有时分离和量化所有电子（葜）和Z -联合体（独联体）的异构体。数据库的类胡萝卜素组成[ 3-5 ]的条款表明，类胡萝卜素是重要的对人类健康（图1 ） 。
关键步骤和来源的错误
保证的可靠性分析数据，分析师必须知道的性质，粮食类胡萝卜素和可能出现的错误，可以在其发生的鉴定和量化。来源的错误在这个本来就困难的分析和手段，以避免他们已详细讨论了在以前的出版物[ 6,7 ] 。在此更新，重点是坚持错误和最近提出的分析认为关注的文献。