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RISS 인기검색어
- 검색키워드
- 저자 : Jawandha Sukhjit Kaur (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
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Kaur Karandeep,Gupta Navjot,Mahajan Monika,Jawandha Sukhjit Kaur,Kaur Nirmaljit 한국원예학회 2023 Horticulture, Environment, and Biotechnology Vol.64 No.6
Ber fruit is highly nutritious and rich in bioactive compounds known to have several health benefi ts. However, the signifi cant loss of such compounds during long-term storage is a concern. Retaining its quality during post-harvest by natural preservatives could be a novel approach towards sustainability. In the present study, a novel composite edible coating of beeswax and polyphenols was developed. Beeswax, a lipid-based material with anti-transpiration properties, was derived from honeycomb and polyphenols with huge antioxidant and antimicrobial properties were extracted from underutilized fruit, karonda. The purpose of the present work is to evaluate the eff ect of this composite coating on the storage life of ber fruits. For this, beeswax (2%) alone or impregnated with the polyphenols at diff erent concentrations 0.5% (300 mg/L), 1% (600 mg/L) and 1.5% (750 mg/L) was applied on the fruit's surface. The eff ect of this composite edible coating on the physicochemical properties, bioactive compounds and antioxidant enzymes activities of ber fruits was studied for 28 days during cold storage. The results revealed that the combination of beeswax coating with karonda polyphenols markedly reduced spoilage and maintained the fi rmness of ber fruit during storage. The coating has resulted in higher retention of ascorbic acid, fl avonoids, phenolics and antioxidant activity during storage. The treated fruits showed delayed ripening by slowing down the synthesis of carotenoids as compared to the control fruit. Further, the coating resulted in the lower activities of cell wall degrading enzymes like pectin methyl esterase and cellulase enzymes in the stored ber fruits. Moreover, the concentrations of karonda polyphenols (KPP) have worked in a dose-dependent manner in the coating system, as beeswax with 1.5% KPP was found to be more eff ective in maintaining the quality and nutritional potential of ber fruit during storage.
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Jaismeen Kaur,Sukhjit Kaur Jawandha,Parmpal Singh Gill,Zahwa Jan,Satvir Kaur Grewal 한국식품과학회 2024 Food Science and Biotechnology Vol.33 No.3
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.
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