2. Academic Validation
  3. An untargeted metabolomic approach reveals significant postharvest alterations in vitamin metabolism in response to LED irradiation in pak-choi (Brassica campestris L. ssp. chinensis (L.) Makino var. communis Tsen et Lee)

An untargeted metabolomic approach reveals significant postharvest alterations in vitamin metabolism in response to LED irradiation in pak-choi (Brassica campestris L. ssp. chinensis (L.) Makino var. communis Tsen et Lee)

  • Metabolomics. 2019 Nov 26;15(12):155. doi: 10.1007/s11306-019-1617-z.
Fuhui Zhou 1 2 3,  Jinhua Zuo 1,  Lipu Gao 1,  Yuan Sui 4,  Qing Wang 5,  Aili Jiang 6 7,  Junyan Shi 1
Affiliations

Affiliations

  • 1 Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China.
  • 2 Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian, 116600, China.
  • 3 College of Life Science, Dalian Minzu University, Dalian, 116600, China.
  • 4 Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China.
  • 5 Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China. [email protected].
  • 6 Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian, 116600, China. [email protected].
  • 7 College of Life Science, Dalian Minzu University, Dalian, 116600, China. [email protected].
PMID: 31773368 DOI: 10.1007/s11306-019-1617-z
Abstract

The main objective of this study was to investigate the effect of low-level light emitting diode (LED) irradiation on the metabolite profile of pak-choi. A total of 633 different molecular features (MFs) were identified among sample groups (initial, dark-treated, light-treated) using an untargeted metabolomic approach. The identified metabolites were associated with 24 different metabolic pathways. Four of the pathways including carbon pool by folate, folate biosynthesis, thiamine metabolism, and glutathione metabolism, all of which are associated with vitamin biosynthesis, changed significantly. Metabolites in four of the pathways exhibited significant differences from the control in response to LED irradiation. Additionally, porphyrin and chlorophyll metabolism, as well as glucosinolate biosynthesis, riboflavin metabolism, and carotenoid biosynthesis were positively induced by LED irradiation. These results indicate that postharvest LED illumination represents a potential tool for modifying the metabolic profile of pak-choi to maintain quality and nutritional levels.

Keywords

Postharvest quality; Untargeted metabolomic analysis; Vitamin metabolism; White LED light irradiation.

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