V2EX glutamate

Glutamate

发音 Pronunciation

/lu.t.met/

释义 Definition

谷氨酸盐,一种氨基酸的盐类形式,广泛存在于食物中,是重要的神经递质。最常见的形式是谷氨酸钠(monosodium glutamate,简称 MSG),常用作食品调味料,能产生"鲜味"(umami)。

例句 Examples

Glutamate is naturally found in tomatoes, cheese, and mushrooms.
谷氨酸盐天然存在于番茄、奶酪和蘑菇中。

Recent neuroscience research has revealed that glutamate serves as the most abundant excitatory neurotransmitter in the human brain, playing a critical role in learning and memory formation.
最近的神经科学研究表明,谷氨酸盐是人脑中最丰富的兴奋性神经递质,在学习和记忆形成中起着关键作用。

词源 Etymology

该词源自德语 Glutaminsure(谷氨酸),由德国化学家 Karl Heinrich Ritthausen 于1866年首次从植物蛋白中分离出来。词根 gluten 来自拉丁语,意为"胶",因为谷氨酸最初是从小麦面筋(gluten)中提取的。后缀 -ate 表示化学中的盐类或酯类。1908年,日本化学家池田菊苗从海带中提取出谷氨酸钠,并将其带来的独特味道命名为"旨味"(umami,鲜味),从此 glutamate 作为调味料走入了人们的日常生活。

相关词汇 Related Words

文学与学术引用 Literary & Academic References

  • On Food and Cooking (Harold McGee 著)中,作者详细讨论了 glutamate 在食物鲜味中的化学作用,解释了为什么帕尔马干酪和酱油等发酵食品味道如此浓郁。
  • The Dorito Effect (Mark Schatzker 著)中,glutamate 被用来探讨现代食品工业如何利用调味物质改变人类的饮食习惯。
  • Neuroscience: Exploring the Brain (Bear, Connors & Paradiso 著)中,glutamate 作为大脑中最主要的兴奋性神经递质被广泛讨论,是理解神经信号传递的核心概念。
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