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The anabolism of volatile compounds during the pasteurization process of sea buckthorn (Hippophae rhamnoides) pulp

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Abstract

Pasteurization (PS) causes the abnormal changes in volatiles and off-flavors in juices and limit the commercial production of juices. Herein, the first study on the biochemical reaction of volatile and nonvolatile compounds in response to PS factors during the process of sea buckthorn pulp (SBP) was evaluated. Processing conditions (mainly 80 °C for 20 min) had significant effects on the volatile and nonvolatile compounds. The restricted unsaturated fatty acid metabolism led to the greatest decrease of 20.25% in esters with fruity odor, and furans, smelling like caramel and toast, exhibited the highest increase of 136.40% because of the enhancement of the Maillard reaction. Dimethyl sulfide and dimethyl trisulfide elicited a cooked onion-like off-flavor, generated mainly from Strecker degradation of sulfur-containing amino acids, strengthened by the high pH and sufficient substrates due to the highest consumption rates of 4.66% and 12.01% for organic acids and sugars. Reasonable temperature and time control are crucial to the improvement of the process for PS for the SBP industry.

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Data availability

The data used and/or analysed during the current study are available from the corresponding author on reasonable request.

Code availability

Not applicable.

Abbreviations

PS:

Pasteurization

SBP:

Sea buckthorn pulp

GC–MS:

Gas chromatography–mass spectrometry

OAV:

Odor-activity value

FID:

Flame ionization detection

Raw:

The control samples

82 ℃ (5 Min):

SBP treated at 82 ℃ for 5 min

82 ℃ (10 Min):

SBP treated at 82 ℃ for 10 min

82 ℃ (20 Min):

SBP treated at 82 ℃ for 20 min

93 ℃ (5 Min):

SBP treated at 93 ℃ for 5 min

93 ℃ (10 Min):

SBP treated at 93 ℃ for 10 min

LOX:

Lipoxygenase

DMS:

Dimethyl sulfide

DMTS:

Dimethyl trisulfide

SSM:

S-methyl-methionine

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Acknowledgements

This research was supported by the research project of China National Petroleum Corporation (kywx-23-003).

Funding

This research was supported by the research project of China National Petroleum Corporation (kywx-23–003).

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Authors and Affiliations

Authors

Contributions

YM: Conceptualization, Formal analysis, Investigation, Writing—original draft. XA: Conceptualization, Data curation, Writing—original draft, Writing—review & editing. ZC: Conceptualization. DL: Conceptualization, Methodology, Data curation. DM: Investigation, Conceptualization. LC: Software. XW: Validation. ZL: Funding acquisition, Supervision, Writing—review & editing.

Corresponding author

Correspondence to Zhaolin Lv.

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Mu, Y., Ao, X., Zhao, Z. et al. The anabolism of volatile compounds during the pasteurization process of sea buckthorn (Hippophae rhamnoides) pulp. J Food Sci Technol (2024). https://doi.org/10.1007/s13197-024-05943-z

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  • DOI: https://doi.org/10.1007/s13197-024-05943-z

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