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Targeted Metabolomics Approach to Study Secondary Metabolites and Antioxidant Activity in ‘Kinnow Mandarin’ during Advanced Fruit Maturity

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Relation http://eprints.cmfri.org.in/15931/
https://www.mdpi.com/2304-8158/11/10/1410
https://doi.org/10.3390/foods11101410
 
Title Targeted Metabolomics Approach to Study Secondary
Metabolites and Antioxidant Activity in ‘Kinnow Mandarin’
during Advanced Fruit Maturity
 
Creator Saini, Manpreet Kaur
Capalash, Neena
Varghese, Eldho
Kaur, Charanjith
Singh, Sukhvinder Pal
 
Subject Agriculture
Biochemistry
 
Description In this study, we investigated the impact of harvest maturity stages and contrasting
growing climates on secondary metabolites in Kinnow mandarin. Fruit samples were harvested at
six harvest maturity stages (M1–M6) from two distinct growing locations falling under subtropical–
arid (STA) and subtropical–humid (STH) climates. A high-performance liquid chromatographytandem mass spectrometry (HPLC-MS/MS) technique was employed to identify and quantify
secondary metabolites in the fruit juice. A total of 31 polyphenolics and 4 limonoids, with significant
differences (p < 0.05) in their concentration, were determined. With advancing maturity, phenolic
acids and antioxidant activity were found to increase, whereas flavonoids and limonoids decreased
in concentration. There was a transient increase in the concentration of some polyphenolics such
as hesperidin, naringin, narirutin, naringenin, neoeriocitrin, rutin, nobiletin and tangeretin, and
limonoid aglycones such as limonin and nomilin at mid-maturity stage (M3) which coincided with
prevailing low temperature and frost events at growing locations. A higher concentration of limonin
and polyphenolics was observed for fruit grown under STH climates in comparison to those grown
under STA climates. The data indicate that fruit metabolism during advanced stages of maturation
under distinct climatic conditions is fundamental to the flavor, nutrition and processing quality of
Kinnow mandarin. This information can help in understanding the optimum maturity stage and
preferable climate to source fruits with maximum functional compounds, less bitterness and high
consumer acceptability
 
Publisher MDPI
 
Date 2022
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/15931/1/Foods%20MDPI_2022_Eldho%20Varghese.pdf
Saini, Manpreet Kaur and Capalash, Neena and Varghese, Eldho and Kaur, Charanjith and Singh, Sukhvinder Pal (2022) Targeted Metabolomics Approach to Study Secondary Metabolites and Antioxidant Activity in ‘Kinnow Mandarin’ during Advanced Fruit Maturity. Foods, 11 (10). pp. 1-17.