色氨酸，一种非常重要的氨基酸，也是血清素(让人感觉良好的化学物质)的前导，会转换成褪黑色素，刺激加强松弛感和愉悦。

Tryptophan is an essential amino acid that ACTS as a precursor of serotonin - the feel-good chemical - and can be converted to melatonin, eliciting relaxation and pleasure.

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大部分肉类，无论是来自哪间连锁店的，所具有的都只不过是一个相似而简单的成分标签，如：乳化剂，防腐剂，味精，人工色素，反式脂肪酸，和隐藏成分的通用标签（如：调味料，天然的或人工的香料）。

They add emulsifiers, preservatives, MSG, artificial colors, trans fats, and hidden ingredients under generic labels such as spices, or natural and artificial flavors.

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结果：红花主要含有色素、黄酮类化合物及酚酸等化学成分。

Result:The constituents of Flos Carthami are pigments, flavonoids, phenolic acid etc.

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