结球甘蓝不同品种及部位中主要生物活性物质含量比较

Comparison of Main Bioactive Substance Contents among Different Varieties and Parts of Cabbage(Brassica oleracea var. capitata L.)

对春大将、帕特、汉城和春优4种结球甘蓝(Brassica oleracea var.capitata L.)以及帕特甘蓝的不同部位中硫代葡萄糖苷、异硫氰酸盐(isothiocyanate,ITCs)、总酚和抗坏血酸等主要生物活性物质含量进行比较。结果表明:各品种中脂肪族硫苷含量均最高。其中帕特甘蓝中总硫苷、脂肪族硫苷均高于其他3个品种,且其不同部位中总硫苷含量以外部叶为最高,而中部叶中含量最低。帕特甘蓝中ITCs和总酚含量最高,汉城甘蓝中抗坏血酸含量高于其他3个品种;春大将甘蓝中黑芥子酶(myrosinase,MYR)活性最高,帕特和春优甘蓝中其活性差异不显著,汉城甘蓝中最低。帕特甘蓝中ITCs和抗坏血酸含量以外部叶为最高,总酚含量则在内部叶中最高,MYR活性在中部叶和内部叶中显著高于外部叶。可见,帕特甘蓝可作为功能性食品的原料加以开发利用。

Comparison of the contents of glucosinolates,isothiocyanates,total phenols,ascorbic acid and other major bioactive substances among four cabbage varieties including 'Chundajiang','Pate','Hancheng','Chunyou' and different parts of 'Pate' cabbage was conducted.The results showed that contents of aliphatic thioglycosides were the highest of the total glucosinolates(GLs).Among the four cabbage varieties,the contents of total GLs and aliphatic thioglycosides in 'Pa Te' cabbage were the highest.The content of total GLs in outer leaves of 'Pate' cabbage was the highest,and the lowest in the central.The contents of ITCs and total phenols in 'Pate' cabbage were the highest among the cultivars analyzed.Ascorbic acid content in ball leaves of 'Hancheng' cabbage was higher than in other three varieties.Ball leaves of'Chundajiang' cabbage contained the highest myrosinase(MRY) activity.No significant difference in myrosinase(MRY)activity was detected between 'Pate' and 'Chunyou',whereas in 'Hancheng',MRY activity was the lowest.The contents of ITCs and ascorbic acid in outer leaves and the content of total phenols in central leaves of 'Pate' cabbage were the highest.MRY activity in central and internal leaves of 'Pate' cabbage was significantly higher than that in the outer leaves.Thus,'Pate'cabbage can be developed as a functional food raw material.