Volume 46, Issue 2 e16245
ORIGINAL ARTICLE

Improved nutritional and antioxidant properties of hulless barley following solid-state fermentation with Saccharomyces cerevisiae and Lactobacillus plantarum

Duqin Zhang

Duqin Zhang

Institute of Cereal & Oil Science and Technology, Academy of National Food and Strategic Reserves Administration, Beijing, China

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Bin Tan

Corresponding Author

Bin Tan

Institute of Cereal & Oil Science and Technology, Academy of National Food and Strategic Reserves Administration, Beijing, China

Correspondence

Bin Tan, Institute of Cereal & Oil Science and Technology, Academy of National Food and Strategic Reserves Administration, Beijing, China.

Email: [email protected]

Contribution: Funding acquisition, Resources, Supervision, Validation

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Yuhong Zhang

Yuhong Zhang

Institute of Agricultural Products Processing & Food Science, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, Tibet, China

Contribution: Formal analysis, ​Investigation, Validation, Writing - original draft

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Yanjun Ye

Yanjun Ye

Central South University of Forestry and Technology, Changsha, China

Contribution: ​Investigation

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Kun Gao

Kun Gao

Institute of Cereal & Oil Science and Technology, Academy of National Food and Strategic Reserves Administration, Beijing, China

Contribution: ​Investigation

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First published: 04 December 2021
Citations: 10

Abstract

Hulless barley grain (HBG) was treated by solid-state fermentation (SSF) with various Saccharomyces cerevisiae and Lactobacillus plantarum inoculation ratios (1:0, 1:1, 1:2, 1:3, 0:1, 2:1, and 3:1). The effects of SSF on dietary fiber content and composition, amino acid composition, polyphenol and phenolic acid profiles, and in vitro antioxidant capacities of HBG were investigated. After SSF, the soluble dietary fiber to insoluble dietary fiber ratio increased from 1/5 to 1/3, EAAIegg and EAAIadult increased from 95.25% and 70.44% to 110.40% and 81.65%, respectively, and total phenol content increased from 351.19 to 639.29 mg GAE/100 g DW. In addition, the ABTS•+ radical-scavenging and total antioxidant capacities increased from 795.28 to 1986.10 μmol Trolox/100 g DW, and 139.21 to 323.75 units/100 mg DW, respectively. These results indicate that SSF, particularly with S. cerevisiae/L. plantarum inoculation ratios of 1:1 and 2:1, is a potential technology to improve the nutritional quality and antioxidant capacity of HBG.

Novelty impact statement

  1. Effects of solid-state fermentation (SSF) with different S. cerevisiae and L. plantarum ratios on the nutritional and antioxidant properties of the hulless barley grain (HBG) were investigated.
  2. SSF markedly improved the nutritional and antioxidant properties of HBG.
  3. SSF with S. cerevisiae/L. plantarum inoculation ratios of 1:1 and 2:1 is a potential technology to improve the nutritional quality and antioxidant capacity of HBG-based products.

CONFLICT OF INTEREST

The authors have declared no conflicts of interest for this article.

DATA AVAILABILITY STATEMENT

The authors confirm that the data supporting the findings of this study are available within the article.

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