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This research aimed to evaluate the effect of triple-frequency ultrasound treatment (TFUT), germination (GE), and traditional soaking (TS) methods on the nutritional and techno-functional properties of two different barley varieties, including ZQ2000 and XMLY22. Both ZQ2000 and XMLY22 varieties exhibited the highest total phenolic content (TPC) with 840.73 ± 23.59 μg of GAE/g DW and 720.33 ± 30.56 μg of GAE/g DW, and total flavonoid content (TFC) with 520.79 ± 23.45 μg of QUE/g DW and 420.84 ± 19.80 μg of QUE/g DW, respectively. Enzyme activities, such as peroxidase (POD) and polyphenol oxidase (PPO), were notably elevated, indicating enhanced defense mechanisms. The study also found increased γ-Aminobutyric Acid (GABA) levels and antidiabetic potential through inhibition of α-amylase and α-glucosidase enzymes. Further, gene expression analysis revealed differential regulation of phenylpropanoid pathway genes, contributing to the bioactive compound enhancement. Strong intermolecular interactions were observed in both ZQ2000 and XMLY22 samples subjected to TFUT, GE, TFUT + GE, and TS, as validated by FTIR and molecular docking analyses. The structural configuration of two barley types, ZQ2000 and XMLY22, was determined using Fourier transform infrared (FTIR) spectroscopy, which indicated an increase in α-helix and β-sheet conformation and a decrease in random coil conformation in samples treated with TFUT + GE. Moreover, SEM observation provides convincing evidence that TFUT + GE improves and speeds up the breakdown of ZQ2000's internal structures. Conclusively, this study suggests that the combination of ultrasound and germination treatments significantly enhances the functional properties of barley, making it a promising method for creating health-enhancing barley-based products offering potential applications in functional food development., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2025 The Authors. Published by Elsevier B.V. All rights reserved.)

Flaxseed ( Linum usitatissimum L.) is derived from the flax plant, an annual herb. The primary relevance of flaxseed is in the human nutrition sector, where it is emerging as a significant functional food component due to its high level of active chemicals, which have been linked to health benefits. Flaxseed may be consumed in numerous forms, including milled, oil, and bakery items. The phytochemicals that are present in flaxseed have greatly drawn interest as bioactive molecules beneficial for health. It is naturally enriched with alpha-linolenic acid, omega-3 fatty acid, lignin, secoisolariciresinol diglucoside, and fiber which are physiologically active in the protection of some chronic illnesses such as cancer, diabetes, cardiovascular disease, and cerebrovascular stroke. Furthermore, the benefits of flaxseed eating have been demonstrated in the animal nutrition industry, resulting in healthier food from animal origin. In reality, the fatty acid profile of meat and fat in swine and poultry is directly impacted by the source of fat in the diet. Feeding omega-3-enriched diets with flaxseed will improve the omega-3 content in eggs and meat, enriching the products. The current study focuses on the latest evidence on the chemical makeup of flaxseed and its positive benefits., Competing Interests: The authors declare no conflict of interest., (© 2023 The Authors. Food Science & Nutrition published by Wiley Periodicals LLC.)