求 英文材料的韩文翻译 不要网页翻译的 谢谢合作

来源:百度知道 编辑:UC知道 时间:2024/07/03 05:20:33
In general, the carotenoids can be classified into two great groups: carotenes, which are strictly hydrocarbons, and xanthophylls, which are derived from the former and contain doxygenated functions. Structurally, the carotenoids may be acyclic (e.g., lycopene) or contain a ring of five or six carbons at one or both ends of the molecule( e.g.,β-carotene). Figure 3.1 shows the structure and bicyclic carotenoids, respectively. Figure 3.2 includes the structures of some representative carotenes and xanthophylls, and Appendix 3.1 shows the structures of the carotenes and xanthophylls commonly found in food.
Traditionally, trivial names have been given to new carotenoids after discovery, which in most cases refers to the natural source from which it had first been isolated, for example, zeaxanthin from maize(Zea mays) and lycopene from tomato(Lycopersicon esculentum). Because this system dose not include any structural information, a semisystematic nomenclature was defined that does gi

一般来说,类胡萝卜素可分为两个大组: carotenes ,这是严格的碳氢化合物,并叶黄素,这是来自前和遏制doxygenated职能。结构上,类胡萝卜素可环(例如,番茄红素) ,或含有环的五个或六个碳原子在一个或两端的分子(例如, β -胡萝卜素) 。图3.1显示了双环结构和类胡萝卜素分别。图3.2的结构包括一些代表carotenes和叶黄素,并附录3.1显示的结构和叶黄素carotenes中常见的食品。
传统上,平凡的名字已经被赋予新的类胡萝卜素后发现,在大多数情况下是指天然来源,它首先被孤立,例如,从玉米黄质玉米( Zea mays )和番茄红素的番茄(番茄) 。由于这一系统的剂量不包括任何结构性信息, semisystematic术语的定义,它提供的结构信息,另外指的是母公司胡萝卜素。此系统经国际联盟纯粹与Applide化学(化学) ,其中1975年出版的简规则的名称类胡萝卜素(布里顿, 1993年;威登和摩丝, 1995年) 。希腊字母是用来指定结束的群体可能存在的类胡萝卜素分子。这些类胡萝卜素的结束缺乏组面额apocarotenoids 。图3.3显示, 7月底集团已发现的天然类胡萝卜素,即β , ε , γ , κ , Ф , χ ,并Ψ 。除了表3.1显示琐碎和semisystematic名称carotenes和叶黄素foud最常见食品中。
存在大量的共轭双键的类胡萝卜素分子可能使许多几何异构体[ (泽)同分异构体,也称为顺反] 。然而,在实践中,大多数的类胡萝卜素是自然存在的一切, (英文) 。一些类胡萝卜素存在于( ž )形式的性质,如必新目前在胭脂树种子( Bixa德奥雷亚纳)或亲番茄红素[一种类胡萝卜素与几个双键和( Z )配置,聚( ž ) ]目前在某些品种的番茄。

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