Article (Scientific journals)
Effect of glycerol, peanut oil and soybean lecithin contents on the properties of biodegradable film of improved cassava starches from Côte d’Ivoire
Adjouman Yao, Désiré; Nindjin, Charlemagne; Konan Brou, Roger et al.
2018In International Journal of Environment, Agriculture and Biotechnology, 3 (4)
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Keywords :
Biodegradable film; Cassava starch; Emulsified film; Mechanical properties; Starch-based film
Abstract :
[en] Edible films have been successfully used in the food packaging industry for several decades. Today natural polysaccharides, including cassava starch, are increasingly being used in the production of such biodegradable edible films and food packaging. In Côte d'Ivoire, there are improved cassava varieties whose starches have not yet been tested in the production of biodegradable films. In this study, the optical and mechanical properties and the water solubility of starchbased composite films of four improved cassava varieties with added glycerol, peanut oil and soy lecithin were determined. Starch was obtained by cold water extraction from native cassava from the varieties Bocou 1, Bocou 2, Yavo and TMS. Films preparation was made bycasting method with cassava, glycerol (25-30 %), peanut oil (5-10%) and soybean lecithin (0-5 %). Increasing the glycerol content, increased L*color value and elongation at break and decreased a*, b*, colourdifference (ΔE* ab) and tensiles trength of the composite films. Also, increasing the oil content from 5 to 10%, increased the opacity, b*, ΔE*ab, water solubility, elongation at break but decreased L*, a* and tensiles trength. Similarly, increasing the soy lecithin content from 0 to 5%, increased the opacity, L*, b* and ΔE*ab, but decreased a*, of the starch-based composite films. The results suggest an ideal formulation of 4% starch/25% glycerol/5% oil/5% soy lecithin for a film with optimum mechanical properties with low solubility.
Disciplines :
Food science
Author, co-author :
Adjouman Yao, Désiré;  Université Nangui Abrogoua, Abidjan > Departement des Sciences et Technologies des Aliments
Nindjin, Charlemagne;  Université Nangui Abrogoua, Abidjan > Departement des Sciences et Technologies des Aliments
Konan Brou, Roger;  Université Nangui Abrogoua, Abidjan > Departement des Sciences et Technologies des Aliments
Coulibaly, Souleymane;  Station de Recherche Technologique du Centre National de Recherche Agronomique, BP 881 Abidjan 08, Côte d’Ivoire
Amani N'Guessan, Georges;  Université Nangui Abrogoua, Abidjan > Departement des Sciences et Technologies des Aliments
Sindic, Marianne  ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie des agro-biosystèmes
Tetchi Fabrice, Achille;  Université Nangui Abrogoua, Abidjan > Departement des Sciences et Technologies des Aliments
Language :
English
Title :
Effect of glycerol, peanut oil and soybean lecithin contents on the properties of biodegradable film of improved cassava starches from Côte d’Ivoire
Publication date :
July 2018
Journal title :
International Journal of Environment, Agriculture and Biotechnology
ISSN :
2456-1878
Volume :
3
Issue :
4
Peer reviewed :
Peer reviewed
Available on ORBi :
since 21 April 2019

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