FOOD SCIENCE ›› 2021, Vol. 42 ›› Issue (22): 208-215.doi: 10.7506/spkx1002-6630-20201204-054

• Component Analysis • Previous Articles    

Comparative Analysis of Health-Benefiting Components in Selenium-Enriched and Non-Selenium-Enriched Amaranthus caudatus L.

HAN Wenna, LI Xigui, LIU Huan, LI Mi, JIN Dengpeng, MIAO Huichun, LI Zhongyi, ZHU Siyu, LIU Chunhong   

  1. (1. Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; 2. Guangdong Zhongpu Trace Elements Technology Co. Ltd., Guangzhou 510070, China; 3. Lifetime (Guangdong) Health Industry Co. Ltd., Guangzhou 510070, China; 4. Guangzhou Institute of Micronutrient Sciences, Guangzhou 510070, China)
  • Published:2021-11-23

Abstract: In order to study the effect of selenium enrichment on chemical composition of Amaranthus caudatus L. (ACL), we determined and comparatively analyzed the health-benefiting components (polyphenols, flavonoids and minerals) in the roots, stems, leaves and flowers of Se-enriched and non-Se-enriched ACL by metabonomics based on ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The results showed that the contents of polyphenols, flavonoids and minerals (except zinc) in Se-enriched ACL were generally higher than those in normal ACL. Among the four plant parts, the leaves of Se-enriched ACL showed the greatest changes in the contents of these components, exhibiting an increase in the contents of polyphenols, flavonoids, calcium, iron, copper, selenium, molybdenum, cobalt and chromium of 65.9%, 95.4%, 39.5%, 16.8%, 297.5%, 1 050.0%, 110.7%, 300.0% and 207.7%, respectively and a 76.4% decrease in the content of zinc compared to the non-Se-enriched ones. The above data showed that selenium enrichment promoted the accumulation of polyphenols, flavonoids and most minerals in different parts of ACL. This study may provide a theoretical basis for the development of health products from Se-enriched ACL.

Key words: Amaranthus caudatus L.; selenium enrichment; polyphenols; flavonoids; minerals

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