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Beeswax enriched gibberellic acid coatings preserve antioxidant properties and quality of lemon fruit under cold storage condition

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Abstract

Lemons are widely used for fresh fruit consumption and their nutritive quality tends to decline during long-term storage. In an attempt to maintain antioxidant properties in stored lemons, the fruits were treated with coatings of beeswax (BW) 2% and BW 2% enriched with 50, 100, and 150 mgL−1 gibberellic acid (GA3) respectively, and kept at 6–8 °C and 90−95% RH for 60 days. The evaluation of different antioxidant-related parameters of lemons during the cold storage period suggested BW + GA3 coatings retained higher antioxidants as compared to control. However, the maximum titratable acidity (TA) and ascorbic acid (AsA) were retained by the coating of BW 2% + 50 mgL−1 GA3. Furthermore, this combined coating also enhanced the total phenolic content (TPC), total flavonoids content (TFC), and ∙OH scavenging activity as compared to uncoated lemons. At the end of storage, the total antioxidant activity (TAA) of lemon fruits coated with BW 2% + 50 mgL−1 GA3 was 1.56 and 1.41 times higher in peel and pulp, respectively than the uncoated fruits. In summary, the combined coatings of BW 2% + 50 mgL−1 GA3 preserved the antioxidant activities and overall sensory quality rating of lemon fruits up to 60 days of cold storage.

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Acknowledgements

The authors are thankful to Punjab Agricultural University, Ludhiana, India for providing the necessary research facilities.

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Correspondence to Jaismeen Kaur.

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Communicated by P.K. Nagar.

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Kaur, J., Jawandha, S.K., Gill, P.P.S. et al. Beeswax enriched gibberellic acid coatings preserve antioxidant properties and quality of lemon fruit under cold storage condition. Acta Physiol Plant 45, 93 (2023). https://doi.org/10.1007/s11738-023-03567-y

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  • DOI: https://doi.org/10.1007/s11738-023-03567-y

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