Composite coatings of beeswax + naphthalene acetic acid preserved fruit quality and antioxidants in stored lemon fruits

Jaismeen Kaur; Sukhjit Kaur Jawandha; Parmpal Singh Gill; Zahwa Jan; Satvir Kaur Grewal

doi:10.1007/s10068-023-01364-4

Composite coatings of beeswax + naphthalene acetic acid preserved fruit quality and antioxidants in stored lemon fruits

Food Sci Biotechnol. 2023 Jun 20;33(3):589-598. doi: 10.1007/s10068-023-01364-4. eCollection 2024 Feb.

Authors

Jaismeen Kaur¹, Sukhjit Kaur Jawandha¹, Parmpal Singh Gill¹, Zahwa Jan¹, Satvir Kaur Grewal²

Affiliations

¹ Department of Fruit Science, Punjab Agricultural University, Ludhiana, 141004 Punjab India.
² Department of Biochemistry, Punjab Agricultural University, Ludhiana, 141004 Punjab India.

PMID: 38274194
PMCID: PMC10805691 (available on 2024-06-20)
DOI: 10.1007/s10068-023-01364-4

Abstract

Lemon fruits are well recognized for their richness in antioxidants. The present study was conducted to maintain the antioxidant properties of lemon fruits under long term cold storage. Fruits were given different treatments of naphthalene acetic acid (NAA) @ 50, 100 and 150 ppm plus beeswax (BW) @ 2% and were stored at 6-8 °C and 90-95% RH for 60 days. At the end of storage, fruits coated with NAA (50 ppm) + BW (2%) retained 42.14 and 34.61% antioxidants, 62.72 and 56.54% phenolic content and 17.72 and 13.80% hydroxyl radical scavenging capacity in peel and pulp, respectively as compared to the control. This treatment also resulted in lesser weight loss (5.27%), higher ascorbic acid content (46.31 mg 100 ml^-1 juice) and titratable acidity (5.23%). Hence, NAA + BW coatings were promising for the maintenance of the postharvest antioxidant quality of stored lemons.

Supplementary information: The online version contains supplementary material available at 10.1007/s10068-023-01364-4.

Keywords: Antioxidant; Beeswax; Cold storage; Lemon; Naphthalene acetic acid.

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