Table 1. Microorganism analyses of chicken breast during storage at 4°C

Parameter (Log CFU/g)	Treatment	Storage period (d)
		1	3	6	10	14
TVC	CON	3.52±0.06Da	3.37±0.07Ea	5.57±0.01Ca	7.33±0.00Ba	8.07±0.01Aa
	C1.5G3M0	2.75±0.03Db	2.69±0.02Eb	4.03±0.02Cb	6.92±0.02Bb	7.75±0.03Ab
	C1.5G3M0.5	2.46±0.01Ec	2.61±0.07Db	3.97±0.08Cb	5.96±0.05Bc	7.08±0.02Ac
	C1.5G3M1	2.32±0.04Cd	2.24±0.07CDc	2.18±0.06Dc	5.82±0.01Bd	7.09±0.02Ac
Coliform	CON	ND	ND	2.96±0.05C	4.03±0.01Ba	5.21±0.01Aa
	C1.5G3M0	ND	ND	ND	2.72±0.01Bb	4.07±0.04Ab
	C1.5G3M0.5	ND	ND	ND	2.33±0.04Bc	3.71±0.02Ac
	C1.5G3M1	ND	ND	ND	2.17±0.15Bd	3.62±0.04Ad
Escherichia coli	CON	ND	ND	ND	ND	ND
	C1.5G3M0	ND	ND	ND	ND	ND
	C1.5G3M0.5	ND	ND	ND	ND	ND
	C1.5G3M1	ND	ND	ND	ND	ND
Yeast and molds	CON	1.85±0.13D	1.43±0.23E	2.83±0.03Ca	3.40±0.03Ba	5.62±0.03Aa
	C1.5G3M0	ND	ND	1.59±0.26Cb	2.71±0.07Bb	4.83±0.07Ab
	C1.5G3M0.5	ND	ND	1.10±0.17Cc	1.72±0.10Bc	4.28±0.03Ac
	C1.5G3M1	ND	ND	ND	ND	ND
Listeria monocytogenes	CON	2.96±0.11ABa	3.05±0.06Aa	3.03±0.05Aa	3.06±0.08Aa	2.87±0.09Ba
	C1.5G3M0	2.05±0.03Bb	1.73±0.12Dc	2.31±0.05Ab	1.98±0.08BCc	1.86±0.05CDb
	C1.5G3M0.5	1.90±0.05Bbc	2.01±0.05Bb	2.19±0.04Ab	2.29±0.07Ab	1.95±0.08Bb
	C1.5G3M1	1.98±0.04Bbc	2.07±0.04Bb	2.29±0.13Ab	2.11±0.08Bc	1.65±0.05Cc
Salmonella enteritidis	CON	3.65±0.05Ca	3.74±0.04Ca	3.72±0.02Ca	4.70±0.07Ba	6.47±0.01Aa
	C1.5G3M0	3.07±0.02Bb	3.06±0.04Bb	2.98±0.02Cc	3.33±0.01Ab	2.71±0.03Db
	C1.5G3M0.5	2.81±0.05Cc	3.07±0.03Bb	3.19±0.07Ab	2.54±0.08Ed	2.64±0.03Dc
	C1.5G3M1	3.02±0.03Ab	2.86±0.03Bc	2.88±0.03Bd	2.72±0.05Cc	2.72±0.05Cb

Different capital letters indicate significant differences between storage periods within the same treatment group (p<0.05).
Different lowercase letters indicate significant differences between the treatments during the same storage period (p<0.05).
TVC, total viable count; CON, uncoated chicken breast; C1.5G3M0, chitosan/gelatin (1.5%/3%) edible coating-coated chicken breast without mugwort essential oil; C1.5G3M0.5, chitosan/gelatin (1.5%/3%) edible coating-coated chicken breast with 0.5% mugwort essential oil; C1.5G3M1, chitosan/gelatin (1.5%/3%) edible coating-coated chicken breast with 1% mugwort essential oil; ND, non-detection.