Table 1.
Edible Coating | Macro-Molecule | Remarkable Component |
Food Product | Improvement | T (°C) |
t (Days) |
RH (%) | Ref. |
---|---|---|---|---|---|---|---|---|
Alginate (3%) + Chitosan (1%) + Olive leaf extract | PS | Olive leaf extract | Cherry fruits | Retardation of maturation, Anthocyanin incrementation | 25 | 20 | 65 | [28] |
Guava leaf extract (20%) + Lemon extract (15%) | - | Guava leaf extract + Lemon extract | Banana | Reduction in color changes, Preservation of vitamin C | NS | 14 | NS | [29] |
Commercial pectin + corn-flour starch + beetroot powder | PS | Corn-flour starch//Corn-flour–beetroot powder | Tomatoes | Lower weight loss, Lower decay percentage, Lower respiration rate | 25 | 30 | 80–85 | [30] |
Pectin + Oregano essential oil (36.1 mg/mL) | PS | Oregano EO | Tomatoes | Lower fungal decay, Increase in antioxidant activity | 25 | 12 | NS | [31] |
Whey protein pectin + pectin + transglutaminase | PR and PS | Transglutaminase | Apples, Potatoes, Carrots | Lower weight loss, Inhibition of microbial growth, Antioxidant activity preservation | 4–6 | 10 | NS | [32] |
Glycerol + Tragacanth gum (0.6%) | PS | Tragacanth gum | Strawberries | Reduction in the rate of deterioration in ascorbic acid, total phenolics and anthocyanins | 4 | 16 | NS | [33] |
Glycerol + CMC (1%) | CMC | |||||||
Glycerol +LMP (2%) | LMP | |||||||
Glycerol + PG (4%) | PG | |||||||
Whey protein (8%) + lemon oil (1%) | PR | Lemon oil | Pears | Reduction in color changes, Reduction in loss of hardness, Reduction in loss of polyphenols and flavonoids | 4 | 7–28 | 80 | [34] |
Whey protein (8%) + lemon grass essential oil (0.5%) | PR | Lemongrass EO | ||||||
Chitosan (1%) + Gum ghatti (1%) | PS | Gum ghatti | Grapes | Retention of phenolic acids content, Reduction in yeast-mold growth | 1 | 60 | 85–90 | [35] |
Alginate + Aloe vera + ZnO-NPs | PS | Aloe vera ZnO-NPs | Tomatoes | No spoilage during the storage | RT | 16 | NS | [36] |
PET + Chitosan (2%) + Cinnamon essential oil (0.5%) | PS | Cinnamon EO | Pineapple | Lower weight loss, Lower decrease in L*, Microbial growth retardation | 5 | 15 | NS | [37] |
Sodium alginate + sweet orange essential oil (5%) | PS | Sweet orange EO | Tomatoes | Eradication of sessile and planktonic forms of Salmonella and Listeria, Lower weight loss | 22 | 15 | NS | [38] |
Pullulan + cinnamon EO | PS | Cinnamon EO | Strawberry | Delay in mass loss, decay percentage, and firmness | 20 | 6 | 70–75% | [39] |
Sodium alginate (2%) + ascorbic acid (0.5%) + vanillin (1%) | PS | Ascorbic acid, Vanillin | Kiwifruit | Lower decay, Lower ascorbic acid loss | 5 | 7 | NS | [40] |
Sodium alginate (2%) + ascorbic acid (0.5%) + vanillin (0.5%) | Lower weight loss | |||||||
Walnut flour protein | PR | - | Walnuts | Protection against lipid deterioration, Preservation of the sensory characteristics | 40 | 84 | NS | [41] |
Soy protein + ferulic acid | PR | Ferulic acid | Fresh-cut apple | Weight loss control, Firmness control | 10 | 7 | 50 | [42] |
Soy protein + cysteine (1%) | PR | Cysteine | Fresh-cut eggplant | Enzymatic browning control | 8–9 | 5 | NS | [43] |
Whey protein +. Xanthan gum + Clove oil | PR | Clove oil | Tomatoes | Improvements in firmness and color, Respiration is inhibited | 15 | 20 | 85 | [44] |
Whey protein nanofibrils + glycerol + trehalose | PR | Glycerol and trehalose | Fresh-cut apple | Enzymatic browning control | 10 | 4 | NS | [45] |
Whey protein nanofibrils | - | Hydrophobic and antioxidant activity | ||||||
Aloe vera 50% gel | Gel | Aloe vera | Papaya fruit | Control disease pathogens, Delay ripening, Water loss control, Respiration rate reduction | 15 | 28 | 68–70 | [46] |
Chitosan-gelatin | PS | - | Red bell peppers | Microbial spoilage reduction, Respiration rate maintenance, Nutritional content maintenance | 7; 20 | 14 | - | [47] |
21 | 7 | |||||||
14 | 20 | |||||||
Chitosan + HPMC + bergamot EO | PS | Bergamot EO | Grapes | Weight loss reduction, Respiration rate reduction, Firmness improvement, Antimicrobial effect | 1–2 | 22 | - | [48] |
Pea starch + guar gum | PS | - | Oranges | Shelf-life extension, Higher perception of off flavors, Better sensory scores | 20 | 7 | 90–95 | [49] |
Abbreviations: T: temperature; t: time; RH: relative humidity; EO essential oil; RT room temperature; NS not specified; CMC methyl cellulose; LMP: Low methoxyl pectin; PG: Persian gum; PS: polysaccharide; PR: protein; L: lipids.