scholarly journals Effect of Chitosan–Pullulan Composite Edible Coating Functionalized with Pomegranate Peel Extract on the Shelf Life of Mango (Mangifera indica)

Coatings ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 764
Author(s):  
Nishant Kumar ◽  
Pratibha ◽  
Neeraj ◽  
Anka Trajkovska Petkoska ◽  
Sawsan Ali AL-Hilifi ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Shelf Life ◽  
Mangifera Indica ◽  
Storage Period ◽  
Edible Coating ◽  
Postharvest Quality ◽  
Pomegranate Peel ◽  
Preservation Method ◽  
Pomegranate Peel Extract ◽  
Peel Extract

The polysaccharide based composite biomaterial (coating) used in preserving fruits and vegetables during storage is attracting increased attention as it is biodegradable material that prolongs shelf life. In the present investigation, chitosan–pullulan (50:50) composite edible coating was prepared with pomegranate peel extract (0.02 g/mL) as an active antioxidant agent. The effect of treatment with pomegranate peel extract enriched chitosan–pullulan composite edible coating on the shelf life of mango fruits during 18 days of storage period at room (23 °C) and cold (4 °C) temperature was evaluated. Results of the present study demonstrated that the application of chitosan–pullulan composite edible coating significantly (p ≤  0.05) influences the storage life of mango fruits at both storage temperatures. The chitosan–pullulan composite edible coating reduced the physiological loss in weight (PLW), and maintained total soluble solids (TSS), acidity and pH of coated mango fruits as compared to the control. In addition, fruit sensory quality such as freshness, color, taste and texture were also retained by the treatment. Furthermore, sustained firmness, phenolic content and antioxidant activity confirmed the effectiveness of the pomegranate peel extract enriched chitosan–pullulan composite edible coating on mango fruits. The phenolic, flavonoid and antioxidant activity of coated fruits were retained by pomegranate peel rich edible coating. Therefore, the chitosan–pullulan (50:50) combination with pomegranate peel extract can be used as an alternative preservation method to prolong the shelf life of mango fruits at room and cold storage conditions. However, more in-depth studies are required at farm and transit level without affecting the postharvest quality of mango fruits, providing more revenue for farmers and minimizing postharvest losses.

Chitosan-starch film containing pomegranate peel extract and Thymus kotschyanus essential oil can prolong the shelf life of beef

Meat Science ◽  
2020 ◽  
Vol 163 ◽  
pp. 108073 ◽  
Author(s):  
Tooraj Mehdizadeh ◽  
Hossein Tajik ◽  
Ali Mojaddar Langroodi ◽  
Rahim Molaei ◽  
Alireza Mahmoudian
Keyword(s):  
Essential Oil ◽  
Shelf Life ◽  
Pomegranate Peel ◽  
Thymus Kotschyanus ◽  
Pomegranate Peel Extract ◽  
Peel Extract

Pre- and postharvest applications of a pomegranate peel extract to control citrus fruit decay during storage and shelf life

Plant Disease ◽  
2020 ◽  
Author(s):  
Sonia Pangallo ◽  
Maria Giulia Li Destri Nicosia ◽  
Silvia Scibetta ◽  
Maria Concetta Strano ◽  
Santa Olga Cacciola ◽  
...  
Keyword(s):  
Shelf Life ◽  
Citrus Fruit ◽  
Alternative Methods ◽  
Postharvest Diseases ◽  
Pomegranate Peel ◽  
Fruit Species ◽  
Postharvest Rot ◽  
Pomegranate Peel Extract ◽  
High Level ◽  
Peel Extract

Green and blue molds are the most important postharvest diseases affecting citrus in storage. These diseases are commonly controlled with fungicides, but legislative restrictions, consumer concerns and the development of resistant strains of the pathogens have increasingly led to the search for alternative methods of control. A pomegranate peel extract (PGE) was very effective in controlling Valencia orange and clementine postharvest rot under commercial conditions. After cold storage and 7 days of shelf life, the incidence of decay on oranges sprayed before harvest with PGE at 12, 6, and 3 g/l was reduced by 78.9, 76.0, and 64.6%, respectively. Similarly, postharvest dipping treatments with PGE reduced rot by 90.2, 84.3, and 77.6%, respectively. Comparable levels of protection were also achieved on clementines. On both, oranges and clementines, the extract provided a significantly higher level of protection compared to Imazalil (IMZ), a fungicide commonly used for postharvest treatments. The high level of efficacy and the consistence of results on different fruit species (clementines and oranges) and with different application methods (pre- and postharvest) was evidence of reliability and flexibility. PGE also showed a strong antimicrobial activity against fungi and bacteria, suggesting its possible use as sanitizers to reduce the microbial contamination of recirculated water in packinghouses. The results of the present study encourage the integration of conventional chemical fungicides and sanitizers with PGE to control citrus postharvest rot.

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