外源物质亚硒酸钠处理对西兰花营养品质和硫苷含量的影响  

Effects of Exogenous Substance Na_(2)SeO_(3) Treatment on Nutritional Quality and Glucosinolate Content of Broccoli

作　　者：刘萌 何洪巨[2] 黄晓欣 刘光敏[2] 张俊花[1] 黄伟[1] LIU Meng;HE Hongju;HUANG Xiaoxin;LIU Guangmin;ZHANG Junhua;HUANG Wei(College of Agriculture and Forestry Science and Technology,Hebei North University,Zhangjiakou,Hebei 075000;Beijing Vegetable Research Center,Beijing Academy of Agricultural and Forestry Sciences,Beijing 100097)

机构地区：[1]河北北方学院农林科技学院,河北张家口075000 [2]北京市农林科学院蔬菜研究中心,北京100097

出　　处：《北方园艺》2021年第21期1-7,共7页Northern Horticulture

基　　金：北京市农林科学院创新能力建设专项资助项目(KJCX20200213);河北省专业学位研究生教学案例建设资助项目(KCJSZ2020101);国家大宗蔬菜现代农业产业技术体系建设资助项目(CARS-23-G-08);河北省现代农业产业技术体系蔬菜产业创新团队建设资助项目(HBCT2018030212)。

摘　　要：以西兰花"耐寒优秀"品种为试材,采用不同浓度(0、2.5、5.0、10.0、25.0 mg·L^(-1))的外源物质Na_(2)SeO_(3)处理西兰花,通过测定西兰花中的维生素C、可溶性糖、可溶性蛋白质、粗纤维、多酚、总黄酮和硫苷含量,研究了外源物质Na_(2)SeO_(3)对西兰花营养品质和硫苷含量的影响,以期为强化西兰花营养与活性成分提供参考依据。结果表明:在Na_(2)SeO_(3)不同浓度处理下,西兰花中的可溶性糖含量无显著差异;Na_(2)SeO_(3)处理浓度为5.0 mg·L^(-1)时,维生素C、可溶性蛋白质、干样粗纤维含量最高,较对照分别提高5.31%、17.99%和6.02%。当Na_(2)SeO_(3)处理浓度为10.0 mg·L^(-1)时多酚含量最高,而浓度为5.0 mg·L^(-1)时其次,二者之间差异不显著,较对照分别提高20.18%和4.61%;Na_(2)SeO_(3)处理浓度为5.0 mg·L^(-1)促进了西兰花中除ERU和4OH以外的脂肪族硫苷、吲哚族硫苷和总硫苷含量增加,且在所有处理中这些硫苷含量均为最高。综上,以Na_(2)SeO_(3)5.0 mg·L^(-1)处理对西兰花营养品质和硫苷含量产生的效果最优。‘Naihanyouxiu’broccoli variety used as the test material,different concentrations(0 mg·L^(-1),2.5 mg·L^(-1),5.0 mg·L^(-1),10.0 mg·L^(-1),25.0 mg·L^(-1))of exogenous substance Na_(2)SeO_(3) were used to treat broccoli.The effects of different concentrations of exogenous substance Na_(2)SeO_(3) on the nutritional quality and glucosinolate content of broccoli were studied by determining the contents of vitamin C,soluble sugar,soluble protein,crude fiber,polyphenols,total flavonoids and glucosinolates,in order to provide technical reference for strengthening the nutrition and active ingredient of broccoli.The results showed that under the treatment of different concentration of Na_(2)SeO_(3),there was no significant difference of soluble sugar in broccoli;when the concentration of Na_(2)SeO_(3) was 5.0 mg·L^(-1),the contents of vitamin C and soluble protein and dry crude fiber were the highest,which were increased by 5.31%,17.99% and 6.02%,compared with CK,respectively.When the concentration of Na_(2)SeO_(3) was 10.0 mg·L^(-1),the polyphenol content was the hightest,when the concentration was 5.0 mg·L^(-1),it was the second content,there was no significant difference between them,which increased by 20.18% and 4.61%,compared with CK,respectively.When the concentration of Na_(2)SeO_(3) was 5.0 mg·L^(-1),the contents of aliphatic glucosinolates(not included ERU and 4 OH),indole glucosinolates and total glucosinolates in broccoli were increased,and the content of these glucosinolates were the highest in all treatments.In conclusion,different concentrations of exogenous substance Na_(2)SeO_(3) on the nutritional quality and glucosinolate content of broccoli produced a greater impact,which the concentration of 5.0 mg·L^(-1) Na_(2)SeO_(3) had the most efficient.

关 键 词：西兰花 亚硒酸钠 营养品质 硫苷 

分 类 号：S635.3[农业科学—蔬菜学]