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Characterization of different parts of litchi fruit using UHPLC-QExactive Orbitrap

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Abstract

Litchi fruit is consumed across the globe for its high nutritional value and taste. The qualitative profiling of litchi fruit has been carried out by using ultra-high-performance liquid chromatography with QExactive high-resolution accurate mass spectrometry. Acidified water: methanol: acetonitrile (1:1:1) extracts from individual parts (skin, pulp, and seed) of matured litchi, were subjected to LC–MS analysis with electrospray ionization in full MS-ddMS2 mode as a non-target approach. The data was processed through compound discoverer software by the use of mzCloud and ChemSpider databases, for compound identification. We identified 77 compounds with protonated or deprotonated forms based on the polarity and their characteristic fragments are within ± 4 ppm mass error and retention time ± 0.1 min for parent and fragments. Hypoglycin B is the first time reported in litchi fruit along with hypoglycin A. Further, we verified the distribution of the identified components and differentiation of three different parts of litchi through principal component analysis.

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All the data provided in manuscript is correct and also available with us if required. The datasets generated and/or analysed during the current study are available from the corresponding author on reasonable request.

Abbreviations

LC-MS:

Liquid chromatography mass spectrometer

MCPG:

Methylenecyclopropyl-glycine

UHPLC:

Ultra high performance liquid chromatography

HCA:

Hierarchical cluster analysis

PCA:

Principal component analysis

AGC:

Automatic gain control

HESI:

Heated electrospray ionization

TIC:

Total ion chromatogram

ddMS2:

Data dependent MS2

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Acknowledgements

All authors have equally contributed to this work. All authors thank FSSAI and the FSSC for permission to publish this work.

Funding

This work was supported by the FSSAI-Thermo Fisher Food Safety Solution Center (FSSC) and the FSSAI, New Delhi.

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The corresponding author states that, all authors contributed equally to finish this work. We all authors declare that– (1) the work described has not been published before (except in the form of an abstract, a published lecture or academic thesis), (2) it is not under consideration for publication elsewhere, (3) its submission to JFST publication has been approved by all authors (4) if accepted, it will not be published elsewhere in the same form, in English or in any other language, including electronically without the written consent of the copyright holder, and (5) JFST will not be held legally responsible should there be any claims for compensation or dispute on authorship.

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Correspondence to Dasharath Oulkar.

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Oulkar, D., Singh, K. & Narayan, B. Characterization of different parts of litchi fruit using UHPLC-QExactive Orbitrap. J Food Sci Technol 59, 4889–4906 (2022). https://doi.org/10.1007/s13197-022-05577-z

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  • DOI: https://doi.org/10.1007/s13197-022-05577-z

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