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Comparison of non-volatile flavor compounds in Stropharia rugosoannulata soup processed by different methods

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Abstract

In this study, we investigated the non-volatile flavor compounds (5′-nucleotides, free amino acids, organic acids and soluble sugars) in Stropharia rugosoannulata soup under different processing treatments. S. rugosoannulata soups were first obtained from S. rugosoannulata powder of three different particle sizes under both thermal and non-thermal treatments. Then, the effects of processing methods on non-volatile compounds in these S. rugosoannulata soups were investigated. Specifically, the non-thermal treatment of high hydrostatic pressure (HHP) resulted in high levels of equivalent umami concentration (EUC, 827.44–1411.79 mg/100 g DM); ultrasonic treatment (UT) and homogenization (HG) led to high concentrations of soluble sugars (15.58–30.48 mg/g DM); while hot treatment (HT) contributed to high contents of total organic acids (65.52–98.39 mg/g DM). Besides, moderate fine grinding of S. rugosoannulata powder (P2) facilitated the release FAAs (free amino acids) and soluble sugars in the soup. These results suggested that HHP-P2 is beneficial to the preservation of non-volatile compounds in S. rugosoannulata soup. Our findings may improve the utilization of S. rugosoannulata in the soup industry.

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All data generated or analysed during this study are included in this manuscript.

Abbreviations

HHP:

High hydrostatic pressure

UT:

Ultrasonic treatment

HG:

Homogenization

HT:

Hot treatment

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Funding

This work was supported by technical innovation projects of Hubei Province, China (Grant Number 2019ABA110).

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Contributions

Writing, original draft, Qi Lu; Data curation, Shaohua Wang; Methodology, Shujing Xue; Supervision, De Yang; Project administration, Lu Li. All authors read and approved the final manuscript.

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Correspondence to Lu Li.

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The authors declared that no conflicts of interest/competing interests existed.

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Lu, Q., Wang, S., Xue, S. et al. Comparison of non-volatile flavor compounds in Stropharia rugosoannulata soup processed by different methods. J Food Sci Technol 59, 4025–4036 (2022). https://doi.org/10.1007/s13197-022-05446-9

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  • DOI: https://doi.org/10.1007/s13197-022-05446-9

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