Edible Coating
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2022 ◽  
Vol 2022 ◽  
pp. 1-10
Author(s):  
Ammara Ainee ◽  
Sarfraz Hussain ◽  
Muhammad Nadeem ◽  
Asaad R. Al-Hilphy ◽  
Azhari Siddeeg

Galactomannan from fenugreek and guar seeds were extracted, purified, and used in edible coatings, optimized via response surface methodology. The results showed that the emulsifying capacity and stability of fenugreek galactomannan (FG) and guar galactomannan (GG) increased with increase in the concentration of galactomannan up to 0.5–1%. The average optimized values of FG and GG in edible coatings were predicted to be 1.71% and 2.11% for weight loss, 0.72% and 2.14% for firmness, 1.02% and 1.44% for TSS, 0.83% and 1.36% for pH, 1.03% and 1.44% for acidity, respectively. Significant decrease in weight loss and maximum retention of firmness was observed in coated guava. The TSS increased up to a certain storage period in all treatments and decreased as the storage period progressed, whereas pH exhibited an increasing trend while a significant decrease in acidity was observed. The findings revealed that the shelf life of guava could considerably be improved by incorporating 1.24% galactomannan from GG and 1.01% from FG in the edible coating.


Author(s):  
Maoxi Zhang ◽  
Wei Luo ◽  
Kuan Yang ◽  
cheng li

The effects of the sodium alginate (SA) coating incorporated with cinnamon essential oil nanocapsules (CEO-NPs) and Nisin, as a new edible coating, were investigated on the preservation of beef slices in the refrigerated storage for 15 days. All beef samples were analyzed for physicochemical properties (pH value, weight loss, the total volatile base nitrogen (TVB-N)) and antimicrobial activity against total bacterial count (TBC). Besides, the changes in color parameters and sensory attributes of all beef samples were evaluated. The results revealed that the incorporation of the complex of CEO-NPs and Nisin retarded the growth of the microorganism and reduced lipid oxidation, as determined by pH, TVB-N, and TBC. This can extend the shelf life of beef slices to 15 days. Moreover, the treatment with the SA coating, incorporating CEO-NPs and Nisin, significantly improved the weight loss, color, odor, textural, and broth attributes of the beef samples. The results suggest that the coating treatment enriched with CEO-NPs and Nisin could significantly inhibit quality deterioration of beef slices, and the complex of CEO-NPs and Nisin can improve antioxidant, antibacterial and sensory properties of the SA coating. Thus, the new edible coating could be regarded as a potential material to preserve beef slices.


2022 ◽  
Vol 951 (1) ◽  
pp. 012048
Author(s):  
Y Aisyah ◽  
E Murlida ◽  
T A Maulizar

Abstract Tomato is one of the fruit vegetables that had perishable properties so that it needs good postharvest handling to increase their shelf life. One of among other technologies, surface coating of tomatoes with edible ingredients added with natural antimicrobials is potential to be applied. Currently, nanotechnology represents an important area and an efficient option for extending the shelf life of foods. The research aimed to investigate the effect of edible coating, containing cinnamon oil nanoemulsion, to extend the storage life and quality of tomato fruits. Treatments given were (a) dipping time in the edible coating formula (1 and 3 minutes), and the storage period of tomatoes, namely 3, 6, 9, 12 and 15 days at room temperature (27°C). As a control treatment, the inspection was also applied on non-coated tomatoes. The results showed that coating treatment was significantly able to delay changes in the quality attributes of tomatoes and longer shelf life compared to fruit that was not coated with an edible coating. Tomato edible coating has better in maintaining physicochemical characteristics (weight loss of 1.83%, TSS 0.34 Brix, vitamin C 59.8 mg/100g and total plate count of 7.88 × 106 CFU/g) than control throughout the storage period. The study concludes that cinnamon oil nanoemulsion coating could be a good alternative to preserve the quality and extend the storage life of tomatoes.


2021 ◽  
Vol 15 (2) ◽  
Author(s):  
Zatanna Balqis ◽  
Paranita Asnur ◽  
Ummu Kalsum ◽  
Inti Mulyo Arti

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Rowaa Ghannam ◽  
Shimaa Abdelsalam ◽  
Afaf Amin ◽  
Maha Hewedy

Horticulturae ◽  
2021 ◽  
Vol 7 (12) ◽  
pp. 581
Author(s):  
Roberta Passafiume ◽  
Giovanni Gugliuzza ◽  
Raimondo Gaglio ◽  
Gabriele Busetta ◽  
Ilenia Tinebra ◽  
...  

Pear fruits are known for their antioxidant and nutritional characteristics. However, they are very susceptible to rapid decay. Edible coating (EC) represents a good strategy to maintain postharvest quality. The effects of two EC in slowing down the senescence processes in fresh-cut ‘Coscia’ pears were investigated: EC1 (A. vera gel, hydroxypropyl-methylcellulose and pomegranate seeds oil (PSO), EC2 (A. vera gel and hydroxypropyl-methylcellulose). Weight loss, firmness and colour decrease more slowly in both EC-treated than in untreated (CTR) slices; soluble solid content increases faster in CTR, indicating a faster ripening process. The specific investigation of undesired microorganisms did not generate any colony in all analysed samples. Sensory analysis confirmed that the tasters preferred the EC2-treated samples, as they were the only ones that did not show undesirable flavours until the last day of storage.


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