食品科学 ›› 2010, Vol. 31 ›› Issue (21): 142-146.doi: 10.7506/spkx1002-6630-201021032

• 基础研究 • 上一篇    下一篇

紫玉米成熟期以及不同干燥方式下花青素和两种毒素的含量变化

肖丽霞1,汪 芬1,于洪涛1,赵晓燕2 ,* ,胡晓松3   

  1. 1.扬州大学食品科学与工程学院 2.北京市农林科学院蔬菜研究中心 3.中国农业大学食品科学与营养工程学院
  • 收稿日期:2010-06-18 出版日期:2010-11-15 发布日期:2010-12-29
  • 通讯作者: 赵晓燕 E-mail:zhaoxiaoyan@nercv.org
  • 基金资助:

    北京市科委成果转化项目(Z08000503250821)

Effects of Maturity Degree and Drying Methods on Anthocyanin and Toxins Contents in Purple Corn

XIAO Li-xia1,WANG Fen1,YU Hong-tao1,ZHAO Xiao-yan2,*,HU Xiao-song3   

  1. 1. College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China;
    2. Vegetable Research Center of Beijing Academy of Agricultural and Forest Sciences, Beijing 100097, China;
    3. College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100087, China
  • Received:2010-06-18 Online:2010-11-15 Published:2010-12-29
  • Contact: ZHAO Xiao-yan2 E-mail:zhaoxiaoyan@nercv.org

摘要:

建立高效液相色谱方法准确检测紫玉米中富马毒素B1 和黄曲霉毒素B1、B2、G1、G2。在紫玉米成熟、不同干燥过程中监测苞叶、穗轴、籽粒三部分的毒素及花青素含量的变化情况,从而找到最佳的采收时间、最佳干燥方法。结果表明:从紫玉米种植开始,10 周后为最佳采收时间;紫玉米苞叶中花青素含量最高且易干燥;微波干燥解毒能力强,但花青素损失较多且很难用于工业化操作;鼓风干燥适合用来干燥籽粒;日光干燥苞叶和穗轴花青素几乎没有损失,能降低50% 左右的毒素,经济适宜,适合工业化生产。

关键词: 紫玉米, 花青素, 富马毒素, 黄曲霉毒素, 干燥

Abstract:

In order to explore the optimal harvesting season and drying method, the content changes of fumonisin B1 and aflatoxin B1, B2, G1 and G2 in husk, cob and grain of purple corn during mature period and different drying methods were determined by high performance liquid chromatography. Results indicated that the best time for harvesting purple corn was its plantation after 10 weeks; the husk of purple corn exhibited the highest content of anthocyanin and was easy to be dried at this harvesting time point. Microwave drying had strong detoxification capability, however, it also resulted in the loss of anthocyanin. Thus, microwave drying was not suitable for industrialized production. Airflow drying was suitable for kernels. The loss of anthocyanin in husk and cob of purple corn was less during sunlight drying. In addition, sunlight drying method could degrade 50% toxins. Therefore, sunlight drying is an economic drying method and suitable for industrialized production.

Key words: purple corn, anthocyanin, fumonisin, aflatoxin, drying

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