Evaluation of Biodegradable Gelatin and Gelatin–Rice Starch Coatings to Fresh Cut Zucchini Slices

Biodegradable packaging minimizes negative environmental impacts of synthetic materials and maintains product quality. Fresh cut vegetables and fruits such as zucchini were sensitive to degradation, which could be delayed by edible coatings. Mixtures of gelatin and other biopolymers were commonly us...

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Bibliographic Details
Published in:Horticulturae 2022-11, Vol.8 (11), p.1031
Main Authors: Bari, Anastasia, Giannouli, Persephoni
Format: Article
Language:English
Subjects:
Biodegradability
Biodegradable products
Biodegradation
Biopolymers
coating
Coatings
color
Environmental impact
Evaluation
Firmness
Food
Food industry
Food packaging
Food packaging industry
Food quality
Fruits
Gelatin
Glycerol
Horticulture
Low temperature
Materials
Mixtures
Novel foods
Packaging
Permeability
Respiration
Rice
Starch
texture characteristics
Variance analysis
Vegetables
Weight loss
Zucchini
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Summary:Biodegradable packaging minimizes negative environmental impacts of synthetic materials and maintains product quality. Fresh cut vegetables and fruits such as zucchini were sensitive to degradation, which could be delayed by edible coatings. Mixtures of gelatin and other biopolymers were commonly used in novel food packaging preserving quality characteristics of foods. In this study, for first time, gelatin and a gelatin mixture with rice starch were applied to zucchini slices during 7 days of storage at 5 °C in order to evaluate weight loss, firmness, breaking force and color. Gelatin coating as a treatment type demonstrated superior ability to preserve the quality of sliced zucchini fruit and contributed to the maintenance of their texture characteristics similar to values of the control group. The addition of rice starch to the gelatin coating also maintained firmness and breaking force, but accelerated the increase of weight loss and decreased lightness compared to control samples. In conclusion, this study on coatings of gelatin and a gelatin–rice starch mixture enriches the knowledge within the food industry on biodegradable coatings, and gives useful information for zucchini slice storage at a low temperature.
ISSN:2311-7524
2311-7524
DOI:10.3390/horticulturae8111031