Application of gum arabic and methyl cellulose coatings enriched with thyme oil to maintain quality and extend shelf life of “Acco” pomegranate arils
Date
2020-12-01
Journal Title
Journal ISSN
Volume Title
Publisher
MDPI
Abstract
The effects of gum arabic (GA; 1.5% w/v) and methyl cellulose (MC; 1% w/v) enriched with
thyme oil (TO; 0.25 and 0.5% v/v) on the quality of “Acco” pomegranate arils were studied. Coating
treatments, namely, MC, MC + TO0.5%, MC + TO0.25%, GA, GA + TO0.5% and GA + TO0.25% were
applied on arils by dipping, and evaluations were made on physicochemical and microbiological
quality, phytochemicals and antioxidant capacity of arils stored (5 ± 1
◦C, 95 ± 2% RH) for 16 days.
Dipping arils in GA or MC, both containing TO (0.5% v/v) significantly (p < 0.0001) reduced weight
loss and enhanced antioxidant activity (FRAP) (p = 0.0014). However, dipping arils in GA combined
with TO (0.25% v/v) had the highest influence on reducing aril respiration rate compared with other
treatments. Overall, results showed that application of coatings (GA + TO0.5% and GA + TO0.25%)
reduced total yeast and mould and total plate counts and maintained quality up to 8 days of storage.
These findings suggest that either GA + TO0.5% or GA + TO0.25% coatings have the capability to
extend storage life of “Acco” pomegranate arils.
Description
CITATION: Kawhena, T. G. et al. 2020. Application of gum arabic and methyl cellulose coatings enriched with thyme oil to maintain quality and extend shelf life of “Acco” pomegranate arils. Plants, 9(12):1690, doi:10.3390/plants9121690.
The original publication is available at https://www.mdpi.com
The original publication is available at https://www.mdpi.com
Keywords
Pomegranate -- Quality, Gum arabic, Pomegranate -- Postharvest technology, Antioxidants, Pomegranate -- Effect of freezes on, Edible coatings
Citation
Kawhena, T. G. et al. 2020. Application of gum arabic and methyl cellulose coatings enriched with thyme oil to maintain quality and extend shelf life of “Acco” pomegranate arils. Plants, 9(12):1690, doi:10.3390/plants9121690.