Physicochemical Properties, Microbial Profile, and Biogenic Amines Content of Barramundi (Lates calcarifer Bloch) Fillets Wrapped in Selected Packaging Films Under Modified Atmosphere Packaging

Figures & data

TABLE 1 Biogenic amines concentration (mg/kg) in barramundi fillets in different packaging films (n = 3)

Biogenic amines (mg/kg)	Packaging films	Storage days
		0	4	8	12	16	20
Tryptamine	PA	ND	ND	0.58 ± 0.11Aa	23.83 ± 2.92BCb	28.20 ± 1.15Cb	19.70 ± 1.34Bb
	PP	ND	ND	0.79 ± 0.08Aa	13.80 ± 1.41Ba	18.20 ± 1.31Ca	14.63 ± 1.40Ba
	PE	ND	ND	9.33 ± 2.61Ab	17.37 ± 1.8Ba	26.17 ± 1.2Cb	16.50 ± 1.25Bab
Phenylethylamine	PA	ND	ND	0.56 ± 0.09Aa	30.27 ± 2.53Ca	19.07 ± 1.70Ba	16.30 ± 1.51Ba
	PP	ND	ND	0.76 ± 0.10Aa	32.87 ± 2.62Da	27.50 ± 2.23Cb	19.53 ± 1.72Ba
	PE	ND	ND	8.93 ± 1.39Ab	49.73 ± 4.99Db	41.10 ± 2.02Cc	28.20 ± 2.05Bb
Spermidine	PA	ND	ND	0.56 ± 0.07Aa	24.30 ± 4.33Ca	16.90 ± 1.73Ba	12.90 ± 1.05Ba
	PP	ND	ND	0.75 ± 0.11Aa	37.70 ± 3.66Bb	39.20 ± 1.91Bb	33.23 ± 3.10Bb
	PE	ND	ND	4.23 ± 0.65Ab	47.77 ± 1.85Dc	37.03 ± 2.06Cb	29.45 ± 2.07Bb
Spermine	PA	ND	ND	0.57 ± 0.10Aa	6.45 ± 1.48Aa	19.73 ± 1.92Ba	34.03 ± 5.76Ca
	PP	ND	ND	0.76 ± 0.07Aa	14.70 ± 1.51Bb	21.90 ± 3.01Ca	36.13 ± 2.84Da
	PE	ND	ND	1.59 ± 0.46Ab	13.80 ± 1.7Bb	29.37 ± 2.37Cb	39.13 ± 2.91Da
Tyramine	PA	ND	ND	0.54 ± 0.10Aa	31.03 ± 1.68Bb	42.43 ± 3.25Cb	25.50 ± 3.23Ba
	PP	ND	ND	0.83 ± 0.05Aa	18.30 ± 0.90Ba	30.53 ± 1.43Ca	33.53 ± 3.81Cb
	PE	ND	ND	9.10 ± 2.16Ab	27.17 ± 2.06Bb	33.10 ± 2.25Ca	36.47 ± 2.38Cb
Agmatine	PA	ND	ND	ND	18.53 ± 2.22Aa	32.40 ± 4.01Ba	39.60 ± 1.97Bb
	PP	ND	ND	ND	18.13 ± 0.96Aa	33.47 ± 3.48Ba	29.43 ± 3.35Ba
	PE	ND	ND	ND	29.73 ± 3.52Ab	44.63 ± 1.72Bb	31.97 ± 2.30Aa

Biogenic amines (means ± standard deviation) with different upper case in the row (for the same packaging films and different days) and different lower case in the column (for the same biogenic amines and different packaging films) indicated significant difference (p < 0.05).

PA: polyamide; PP: polypropylene; PE: polyethylene; ND: not detected (<0.50 mg/kg).

FIGURE 1 Concentration (mg/kg) of histamine a: putrescine, b: cadaverine, c: and total biogenic amines, d: in barramundi fillets packed at different films (n = 3). Symbols:

: PA;

: PP;

: PE. Histamine, putrescine, cadaverine, and total biogenic amines (means ± standard deviation) with different upper case (for the same packaging films and different days) and different lower case (for the same biogenic amines and different packaging films) are significantly different (p < 0.05).

FIGURE 2 Microbial TPC (a) APC, (b) HFB, (c) and anaerobic bacteria, d: changes in barramundi fillets packed at different films (n = 3). Symbols:

: PA;

: PP;

: PE. TPC: total plate count; APC: aerobic psychrotrophic counts; HFB: histamine forming bacteria (means ± standard deviation) with different upper case (for the same packaging films and different days) and different lower case (for the same biogenic amines and different packaging films) are significantly different (p < 0.05).

FIGURE 3 TVB-N changes in barramundi fillets packed at different films (n = 3). Symbols:

: PA;

: PP;

: PE. TVB-N (means ± standard deviation) with different upper case (for the same packaging films and different days) and different lower case (for the same biogenic amines and different packaging films) are significantly different (p < 0.05).

FIGURE 4 Changes in the headspace composition of O₂ and CO₂ in barramundi fillets packed at different films (n = 3). Different lower case (for the same gas and different days) indicated significant difference (p < 0.05).