陈楚文 许丹芸 张辉菊 杨全 高弘扬

摘 要：目的：通过比较肉桂和大叶清化桂叶、枝、皮3个部位的挥发油、总黄酮、原花青素、可溶性糖、可溶性蛋白、水分及肉桂醛这7种成分的指标，对这两种肉桂进行质量评价。方法：分别按《中国药典》、NaNO2-Al（NO）3-NaOH比色法、铁盐催化法、蒽酮法、考马斯亮蓝法和高效液相色谱法测量肉桂种挥发油、总黄酮、原花青素、可溶性糖、可溶性蛋白和肉桂醛的含量。结果：大叶清化桂的叶部中总黄酮、原花青素、可溶性糖（包括鲜品和干品）、可溶性蛋白的含量，均接近于肉桂的2倍;肉桂枝中各种成分含量大叶清化桂与肉桂相近，总体上前者略高于后者;但大叶清化桂的皮中挥发油、肉桂醛、原花青素和总黄酮均显著高于肉桂。结论：挥发油目前仍然是衡量肉桂价值最重要的指标，而总黄酮、原花青素、可溶性糖、可溶性蛋白、肉桂醛等5种成分作为可利用资源，大叶清化桂的潜在价值高于肉桂，其中仍以皮部分的价值最高。

关键词：肉桂;大叶清化桂;成分测定;潜在价值

Abstract：Objective： To measure the contents of seven components of volatile oil， total flavonoids， proanthocyanidins， soluble sugars， soluble protein， and cinnamaldehyde in the leaves， branches， and bark of C. cassia and C. cassia Presl var. macrophyllum Chu， and the indicator of moisture，to evaluate the quality of these two kinds of cinnamon. Method： The contents of volatile oil， total flavonoids， proanthocyanidins， soluble sugar， soluble protein and cinnamaldehyde in Cinnamomum cassia seeds were determined by Chinese Pharmacopoeia， NaNO2-Al（NO）3-NaOH colorimetry， iron catalyzed method， anthrone method， coomassie brilliant blue method and high performance liquid chromatography. Results： The contents of total- flavonoids， proanthocyanidins， soluble sugars （including fresh and dried products）， and soluble proteins in cinnamon leaves were nearly twice as high as that of C. cassia; the contents of various components in cinnamon branches were C. cassia Presl var. macrophyllum Chu. The content of various components in cinnamon sticks is similar to C. cassia， but the former is slightly higher than the latter; However， the volatile oil， cinnamaldehyde， proanthocyanidins and total flavonoids in the bark of C. cassia Presl var. macrophyllum Chu were significantly higher than those in C. cassia. Conclusion： Volatile oil is still the most important indicator to measure the value of cinnamon， and taking the five components of cinnamon total flavonoids， proanthocyanidins， soluble sugars， soluble proteins， cinnamaldehyde as available resources， the potential value of C. cassia Presl var. macrophyllum Chu will be higher than that of C. cassia， and the value of the skin part is still the highest.Key words：Cinnamomum cassia Presl; C. cassia Presl var. macrophyllum Chu; Composition determination; Potential value

中圖分类号：R284

肉桂（Cinnamomum cassia Presl），樟科（Lauraceae）植物樟属（Cinnamomum） 中的一种大型乔木，在有些地方又称西江桂。曾正渝等[1]通过调查发现，肉桂的产区主要有中国、斯里兰卡、印尼、马达加斯加、越南等地，其中产量在10 t以上的有中国、印尼、斯里兰卡等，这些国家生产的肉桂占世界总产量的92.8%。中国不仅是肉桂的主要产地之一，生产总量占世界的38.1%，同时也是肉桂的主要出口国，由此可见肉桂在国际间的需求量很大，是经济价值很高的自然资源。……