松花菜浙017花球成熟过程中的营养品质分析

Nutritional Component Analysis during Ripening Process of Loose-curd Cauliflower Cultivar Zhe 017

以松花菜新品种浙017为试验材料,分析了花球不同生长发育时期的花球形态变化,花球中叶绿素、类胡萝卜素、可溶性总糖、维生素C、总多酚、芥子油苷等含量和抗氧化能力的变化。研究结果表明,松花菜花球从小到大,花球即从相对紧实转为松散,花球高度在生长到峰值后开始逐渐下降,而球径及球质量还能继续增长。花梗颜色从淡色逐渐转变为绿色,花球叶绿素及类胡萝卜素含量显著增长1~2倍。维生素C、可溶性总糖、总多酚以及抗氧化能力等在生长发育过程中存在着差异,但总体变化不明显。花球中共检测到12种芥子油苷,包括8种脂肪族芥子油苷和4种吲哚族芥子油苷。其中主要的脂肪族芥子油苷为3-甲基亚磺酰丙基芥子油苷,主要的吲哚族芥子油苷为吲哚-3-甲基芥子油苷。

In this paper,we investigated the morphological changes,contents of chlorophyll,carotenoids,soluble sugars,vitamin C,total phenols,glucosinolate and antioxidant capacity during different growth and development periods in loosecurd cauliflower cultivar Zhe 017（Brassica oleracea var.botrytis L.）.The results showed that,as the curd grew,it became looser gradually,and its height descended gradually after it got the peak value,but the diameter and weight of the curd were continuously increased.The contents of chlorophyll,carotenoids significantly increased by 1-2 times,and the color of the curd peduncle changed from light green into dark green.The contents of nutrients exhibited differently during the growth and development periods of the curd,but there was no significant difference in contents of vitamin C,soluble sugars,total phenols and antioxidant capacity.A total of 12 kinds of glucosinolates were detected,including 8 kinds of aliphatic glucosinolates and 4 kinds of indole glucosinolates,and glucoiberin and glucobrassicin were the main aliphatic and indole glucosinolatea.