The system will be unavailable for updates from 12:30 on Tuesday 23 May to prepare for the upgrade of the software platform.

Optimization of gum arabic and starch-based edible coatings with lemongrass oil using response surface methodology for improving postharvest quality of whole “wonderful” pomegranate fruit

Kawhena, Tatenda Gift ; Opara, Umezuruike Linus ; Fawole, Olaniyi Amos (2021-04-12)

Kawhena, T.G.; Opara, U.L.; Fawole, O.A. Optimization of Gum Arabic and Starch-Based Edible Coatings with Lemongrass Oil Using Response Surface Methodology for Improving Postharvest Quality of Whole “Wonderful” Pomegranate Fruit. Coatings 2021, 11, 442. doi.10.3390/coatings11040442

The original publication is available at:


The effects of edible coatings based on gum arabic (GA) (0.5–1.5%), maize starch (MS) (0.5–1.5%), lemongrass oil (LO) (2–4%), and glycerol (GC) (0.5–1%) developed using response surface methodology (RSM) on “Wonderful” pomegranate fruit were studied. After 42 days of storage (5 1 C, 95 2% RH) and 5 days at ambient temperature (20 0.2 C and 60 10% RH), whole fruit were evaluated for weight loss (%) and pomegranate juice (PJ) for total soluble solids ( Brix), titratable acidity (% Citric acid), and antioxidant capacity. The optimization procedure was done using RSM and the response variables were mainly influenced by the concentrations of MS and GA. The optimized coating consisted of GA (0.5%), MS (0.5%), LO (3%), and GC (1.5%) with desirability of 0.614 (0—minimum and 1—maximum). The predicted values of response variables, for the coating were weight loss (%) = 5.51, TSS ( Brix) = 16.45, TA (% Citric acid) = 1.50, and antioxidant capacity (RSA = 58.13 mM AAE/mL PJ and FRAP = 40.03 mM TE/mL PJ). Therefore, the optimized coating formulation is a potential postharvest treatment for “Wonderful” pomegranate to inhibit weight loss and maintain overall quality during storage and shelf-life.

Please refer to this item in SUNScholar by using the following persistent URL:
This item appears in the following collections: