Profiling of naturally occurring folates in a diverse soybean germplasm by HPLC-MS/MS

Kwadwo Gyapong Agyenim-Boateng, Shengrui Zhang, Md Shariful Islam, Yongzhe Gu, Bin Li, Muhammad Azam, Ahmed M. Abdelghany, Jie Qi, Suprio Ghosh, Abdulwahab S. Shaibu, Berhane Sibhatu Gebregziabher, Yue Feng, Jing Li, Yinghui Li, Chunyi Zhang, Lijuan Qiu, Zhangxiong Liu, Qiuju Liang, Junming Sun

Research output: Contribution to journalArticlepeer-review

Abstract

Soybean is a rich source of folates. We optimised the extraction and detection of folates from soybean seeds by HPLC-MS/MS and analysed the folate content and composition of 1074 accessions. Total folate content ranged from 64.51 to 691.24 μg/100 g fresh weight, with 10-fold variation, and 60 elite accessions with over 400 μg/100 g of total folate were identified. The most abundant component was 5-CHO-H4folate, which accounted for an average of 60% of total folate content. Seed-coat colour, seed weight, ecoregion, and accession type significantly affected soybean folate content. Furthermore, 5-CH3-H4folate correlated positively with seed protein (r = 0.24***) and negatively with oil (r = -0.26***). The geographical distribution of folate according to accession origin revealed that accessions from Northeast China contain higher amounts of total folate and 5-CHO-H4folate. This study provides comprehensive and novel insights into the folate profile of soybean, which will benefit soybean breeding for folate enhancement.

Original languageEnglish
Article number132520
JournalFood Chemistry
Volume384
DOIs
StatePublished - 1 Aug 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 Elsevier Ltd

Keywords

  • 10-Formyl-folic acid (PubChem CID: 135405023)
  • 5,10-Methenyl-tetrahydrofolate (PubChem CID: 135398657)
  • 5-Formyl-tetrahydrofolate (PubChem CID: 135403648)
  • 5-Methyl-tetrahydrofolate (PubChem CID: 135483998)
  • Acetonitrile (PubChem CID: 6342)
  • Dihydrofolate (PubChem CID: 135398604)
  • Elite accessions
  • Folate
  • Folic acid (PubChem CID: 135398658)
  • Formic acid (PubChem CID: 284)
  • Germplasm
  • HPLC-MS/MS
  • Methotrexate (PubChem CID: 126941)
  • Natural variation
  • Sodium ascorbate (PubChem CID: 23667548)
  • Sodium phosphate dibasic (PubChem CID: 24203)
  • Sodium phosphate monobasic (PubChem CID: 23672064)
  • Soybean (Glycine max L. Merrill)
  • Tetrahydrofolate (PubChem CID: 135444742)
  • α-Amylase (PubChem CID: 62698)
  • β-Mercaptoethanol (PubChem CID: 1567)

ASJC Scopus subject areas

  • Analytical Chemistry
  • Food Science

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