蔷薇属38个野生种果实的维生素含量及其与分组的关系

对蔷薇属 (Rosa) 38个野生种果实 (以下简称蔷薇果 )的经济性状进行了分析 ,并测定了 VC、VE 和胡萝卜素等重要维生素的含量。蔷薇果 VC 含量在该属种间差异很大 ,以秦岭蔷薇 (R.tsinglingensis)的含量为最高 (2 576mg/ 1 0 0 g) ,德钦蔷薇 (R.deqenensis)的含量为最低 (49mg/ 1 0 0 g)。胡萝卜素含量种间差异明显 ,以软条七蔷薇 (R.henryi)的含量为最高 (1 9.2 4 mg / 1 0 0 g) ,黄刺玫 (R.xanthina)的含量为最低 (0 .0 6 mg/ 1 0 0 g)。 VE 含量种间差异较小 ,在 1 .34 mg/ 1 0 0 g(黄刺玫 )至 3.86 mg/ 1 0 0 g(硕苞蔷薇R.bracteata)之间。对蔷薇亚属 54种野生种果实重要维生素含量的统计分析表明 ,维生素含量与分组具有一定相关性 ,尤以 VC 含量与分组的相关性最为明显 ,桂味组和小叶组 Vc含量很高 (均值都高于 1 80 0mg/ 1 0 0 g) ;合柱组、月季组、木香组和硕苞组含量很低 (均值都在 30 0 mg/ 1 0 0 g以下 ) ,芹叶组除宽刺蔷薇 (R.platyacantha) VC含量很高外 ,其余种类含量都很低 (均值为 1 90 mg/ 1 0 0 g)。胡萝卜素含量与分组也具有一定相关性 ,桂味组、芹叶组、合柱组和硕苞组的胡萝卜素含量较高 ,均值在 6 mg/ 1 0 0 g以上 ;月季组、小叶组和木香组含量较低 ,均值在 0 .4mg/ 1 0 0 g以下。V

VITAMIN CONTENTS IN THE HIPS OF 38 SPECIES OF ROSA AND THEIR RELATION TO DIVISION OF SECTIONS

Vitamin C, E, carotenes and major economic characters in hips of 38 species of Rosa from China were studied. There were considerable variations in vitamin C contents in the genus. The maximum amount was found in the hips of R. tsinglingensis (2576 mg/100 g), and the minimum in these of R. deqenensis (49 mg/100 g). Carotene contents varied from 0.06 to 19.24 mg/100 g, being lowest in R. xanthina, and highest in R. henryi. Difference was slight in vitamin E contents ranged from 1.34 mg/100 g (R. xanthina) to 3.86 mg/100 g (R. bracteata).Statistical analysis of 54 species of subgenus Rosa from wild populations in China has evidenced a close relationship between the division of sections and the vitamin C contents in mature hips, such as that vitamin C contents in species of Sect. Cinnamoneae and Microphylla were quite high, with an average of more than 1800 mg/100 g; and relatively low in species of Sect. Synstylae, Banksianae, Bracteatae and Pimpinellifolie (except for R. platyacantha), with an average of less than 300 mg/100 g. Carotene contents in the hips showed less close relationship with the division of sections; as being quite high in species of Sect. Cinnamomeae, Pimpinellifolie and Synstylae, with an average of more than 6 mg/100 g; and considerably low in Sect. Microphyllae, Banksianae and Chinensis, with an average of less than 0.4 mg/100 g. No correlation was found between the division of sections and vitamin E contents. The biological features and possible utilization value of six species were also discussed and evaluated.