Emergency Food Product Packaging by Pectin-Based Antimicrobial Coatings Functionalized by Pomegranate Peel Extracts

Table 1

Phenolic compound concentration in pomegranate peel extracts.

No.	Compound	Retention time (min)	Concentration (µg/ml)
			Aqueous extract	Ethanolic extract
1	Gallic acid	3.2	529.7740	674.9871
2	Caffeic acid	3.4	264.8438	299.1797
3	Catechin	4.05	28.01822	30.75171
4	Epicatechin	4.75	16.24309	26.51934
5	Ferulic acid	5.57	14.54545	22.36364
6	Ellagic acid	9.05	437.5254	628.6004
7	Quercetin	12.58	154.5000	255.2530
8	Quercetin-3-methyl-ether	13.9	113.5135	148.6486
9	Coumaric acid	15.1	172.9885	356.3218
10	Naringenin	16.4	25.54945	28.84615
11	Apigenin	17.55	25.31818	28.18182
12	Kaempferol	19.1	ND	15.15000
13	Luteolin	19.88	15.49180	15.98361
14	Chrysin	34.2	19.83471	24.29752
15	Pinocembrin	38.11	24.42857	28.92857
16	Galangin	39.05	14.67123	14.38356

^∗ND: not detected.