Seaweed derived alginate, agar, and carrageenan based edible coatings and films for the food industry: a review

Author(s):  
Mayushi Malshika Jayakody ◽  
Mihiri Priyanwadha Gunathilake Vanniarachchy ◽  
Isuru Wijesekara
2020 ◽  
Vol 280 ◽  
pp. 102164 ◽  
Author(s):  
Samira Beikzadeh ◽  
Arezou Khezerlou ◽  
Seid Mahdi Jafari ◽  
Zahra Pilevar ◽  
Amir Mohammad Mortazavian

Coatings ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 160 ◽  
Author(s):  
Ricardo González-Reza ◽  
Claudia García-Betanzos ◽  
Liliana Sánchez-Valdes ◽  
David Quintanar-Guerrero ◽  
María Cornejo-Villegas ◽  
...  

Nowadays, edible coatings incorporated with nanostructures as systems of controlled release of flavors, colorants and/or antioxidants and antimicrobial substances, also used for thermal and environmental protection of active compounds, represent a gap of opportunity to increase the shelf life of food highly perishable, as well as for the development of new products. These functionalized nanostructures have the benefit of incorporating natural substances obtained from the food industry that are rich in polyphenols, dietary fibers, and antimicrobial substances. In addition, the polymers employed on its preparation, such as polysaccharides, solid lipids and proteins that are low cost and developed through sustainable processes, are friendly to the environment. The objective of this review is to present the materials commonly used in the preparation of nanostructures, the main ingredients with which they can be functionalized and used in the preparation of edible coatings, as well as the advances that these structures have represented when used as controlled release systems, increasing the shelf life and promoting the development of new products that meet the characteristics of functionality for fresh foods ready to eat.


DYNA ◽  
2018 ◽  
Vol 85 (207) ◽  
pp. 183-191 ◽  
Author(s):  
Erica Yulieth Gil-Giraldo ◽  
Alba Lucia Duque-Cifuentes ◽  
Victor Dumar Quintero-Castaño

The use of edible coatings (EC) has played an important role in the food industry, proving effective in fruit conservation. The objective of this work was to evaluate the effect of edible coatings on a set of physicochemical, microbiological, and sensory parameters of strawberry by using chitosan, calcium caseinate, and low-methoxyl pectin combined with glycerol as plasticizer, ascorbic acid and citric acid as antioxidant agents; uncoated strawberries were used as control. Analyses were performed on days 0, 3, 6, 9, and 12 of storage at 5 °C, evaluating physicochemical and microbiological properties. It was found that the samples with edible coatings differed significantly from the control in the parameters evaluated. The EC1 (chitosan) was effective in prolonging the shelf life of strawberry for up to 14 days, conserving physical and chemical attributes during storage.


2017 ◽  
Vol 37 (8) ◽  
pp. 959-973 ◽  
Author(s):  
Anuradha Saha ◽  
Shvetambri Tyagi ◽  
Rajinder K. Gupta ◽  
Yogesh K. Tyagi

Author(s):  
Jean Fincher

An important trend in the food industry today is reduction in the amount of fat in manufactured foods. Often fat reduction is accomplished by replacing part of the natural fat with carbohydrates which serve to bind water and increase viscosity. It is in understanding the roles of these two major components of food, fats and carbohydrates, that freeze-fracture is so important. It is well known that conventional fixation procedures are inadequate for many food products, in particular, foods with carbohydrates as a predominant structural feature. For some food science applications the advantages of freeze-fracture preparation procedures include not only the avoidance of chemical fixatives, but also the opportunity to control the temperature of the sample just prior to rapid freezing.In conventional foods freeze-fracture has been used most successfully in analysis of milk and milk products. Milk gels depend on interactions between lipid droplets and proteins. Whipped emulsions, either whipped cream or ice cream, involve complex interactions between lipid, protein, air cell surfaces, and added emulsifiers.


2019 ◽  
Vol 13 (3) ◽  
pp. 5653-5664
Author(s):  
M. S. M. Al-Jethelah ◽  
H. S. Dheyab ◽  
S. Khudhayer ◽  
T. K. Ibrahim ◽  
A. T. Al-Sammarraie

Latent heat storage has shown a great potential in many engineering applications. The utilization of latent heat storage has been extended from small scales to large scales of thermal engineering applications. In food industry, latent heat has been applied in food storage. Another potential application of latent heat storage is to maintain hot beverages at a reasonable drinking temperature for longer periods. In the present work, a numerical calculation was performed to investigate the impact of utilizing encapsulated phase change material PCM on the temperature of hot beverage. The PCM was encapsulated in rings inside the cup. The results showed that the encapsulated PCM reduced the coffee temperature to an acceptable temperature in shorter time. In addition, the PCM maintained the hot beverage temperature at an acceptable drinking temperature for rational time.


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