甘蓝苗生长过程中主要生理生化变化  

Changes in Main Physiological and Biochemical Metabolism in Cabbage Sprouts during Germination

作　　者：王志英[1] 郭丽萍[1,2] 李倩倩 杨润强[1] 郭强晖 顾振新[1] 

机构地区：[1]南京农业大学食品科技学院,江苏南京210095 [2]青岛农业大学食品科学与工程学院,山东青岛266109

出　　处：《食品科学》2015年第3期6-11,共6页Food Science

基　　金：国家自然科学基金面上项目(31271912);南京农业大学SRT项目(1418A03)

摘　　要：以"新夏50和"紫红钻"两种甘蓝种子为试材,研究了芽苗生长过程中芽长、呼吸速率、含水量、硫苷含量、异硫氰酸盐含量、多酚含量、抗坏血酸含量等主要的生理生化变化。结果表明:两种甘蓝在发芽过程中芽长、呼吸速率和含水量逐渐升高,"新夏50的生长速率较"紫红钻"快;硫苷和总酚含量在种子中含量最高,随发芽时间延长均逐渐下降。"新夏50和"紫红钻"芽苗中的异硫氰酸盐含量均在发芽1 d后达到最高水平,之后异硫氰酸盐含量缓慢下降至较低水平;而黑芥子酶活性则分别在第3天和第1天达到最高。两种甘蓝种子中未检测到抗坏血酸,随着种子发芽其含量先上升后下降。In this study, sprout length, respiratory rate, water content, glucosinolates, isothiocyanates, total phenolic and abcorbic acid contents, and myrosinase activity in cabbage sprouts from the cultivars 'Xinxia 50' and 'Zihongzuan' during germination were studied. The results showed that the sprout length, respiratory rate, and water content increased during the period of germination. 'Xinxia 50' grew faster than 'Zihongzuan'. Glucosinolates and total phenolic contents were found to be the highest in cabbage seeds but decreased with germination time. The isothiocyanates contents in 'Xinxia 50' and'Zihongzuan' increased to the highest level at the fi rst day of germination but then decreased to the lowest value at day 5.However, the myrosinase activity increased to the highest at d ays 1 and 3 after germination, respectively. While abcorbic acid was not detected in cabbage seeds, and its content increased at the early germination stage but then declined.

关 键 词：甘蓝种子 发芽 硫苷 总酚 异硫氰酸盐 黑芥子酶 抗坏血酸 

分 类 号：S635[农业科学—蔬菜学]