Table 1.

Synthetic and natural active food packaging materials.

Compound	Food	Function	References
Roses	Shrimp	Freshness indicator	[47]
Sodium bicarbonate and citric acid	Chicken	Gas indicator	[48]
Red beet	Fish/shrimp	Freshness indicator	[49]
Betalain	Meat	Freshness indicator	[50]
Dragon fruit	Fish	Freshness indicator	[51]
Zinc oxides	Apple	Microbial indicator	[52]
Thyme herb	Bread	Freshness indicator	[53]
Nisin	Ham	Microbial indicator	[54]
Purple sweet potato	Meat	Time–temperature indicator	[55]
Pomegranate	Orange fruit	Microbial indicator	[56]
Roselle	Pork	Freshness indicator	[57]
Red cabbage	Pasteurised Milk	Time–temperature indicator	[58]
Eggplant	Milk	Freshness indicator	[59]
Clove essential oil and zinc oxide	Shrimp	Microbial indicator	[60]
Red cabbage	Milk	Freshness indicator	[61]
Jambolan fruit	Shrimp	Time–temperature indicator	[62]
Lactoferrin	Fresh sausages	Microbial indicator	[63]
Black rice bran	Pomfret/shrimp	Freshness indicator	[64]