Titre :	Optimization of a production process for food bio-packaging based on cereal by-products
Type de document :	document multimédia
Auteurs :	Mohamed Taher Boughoufala, Auteur ; Zineb Bourakna, Directeur de thèse ; Khadidja Allali, Directeur de thèse
Editeur :	Laghouat : Université Amar Telidji - Département d'agronomie
Année de publication :	2025
Importance :	44 p.
Accompagnement :	1 disque optique numérique (CD-ROM)
Note générale :	Option : Agri-food and quality control (Agroalimentaire et contrôle de qualité)
Langues :	Anglais
Mots-clés :	Wheat bran  Starch  Bioplastic  Plackett–Burman  RSM  Biodegradability  Solubility  Opacity
Résumé :	This study explores the development of biodegradable biofilms optimized per Plackett- Burman design and Response Surface Methodology (RSM) model from wheat bran starch as a sustainable alternative to conventional plastics. Starch was extracted from wheat bran with a yield of 23.14 ± 2.85% and used to produce bioplastic films with glycerol, gelatine, and citric acid. The films showed varying properties, with opacity ranging from 2.55 to 7.03, water solubility between 28.85% and 50.77%, and biodegradability in compost reaching up to 75%. Statistical analysis using Plackett–Burman design and Response Surface Methodology revealed that drying temperature and time had significant effects on biodegradability, while plasticizer type and citric acid amount were less influential. The RSM model showed a medium predictive performance, with R² of 81.53%, indicating a good fit with experimental data. These results confirm the potential of wheat bran as a valuable raw material for producing eco-friendly bioplastics.
note de thèses :	Mémoire de master des siences agronomiques

Optimization of a production process for food bio-packaging based on cereal by-products [document multimédia] / Mohamed Taher Boughoufala, Auteur ; Zineb Bourakna, Directeur de thèse ; Khadidja Allali, Directeur de thèse . - Laghouat : Université Amar Telidji - Département d'agronomie, 2025 . - 44 p. + 1 disque optique numérique (CD-ROM).
Option : Agri-food and quality control (Agroalimentaire et contrôle de qualité)
Langues : Anglais

Mots-clés :	Wheat bran  Starch  Bioplastic  Plackett–Burman  RSM  Biodegradability  Solubility  Opacity
Résumé :	This study explores the development of biodegradable biofilms optimized per Plackett- Burman design and Response Surface Methodology (RSM) model from wheat bran starch as a sustainable alternative to conventional plastics. Starch was extracted from wheat bran with a yield of 23.14 ± 2.85% and used to produce bioplastic films with glycerol, gelatine, and citric acid. The films showed varying properties, with opacity ranging from 2.55 to 7.03, water solubility between 28.85% and 50.77%, and biodegradability in compost reaching up to 75%. Statistical analysis using Plackett–Burman design and Response Surface Methodology revealed that drying temperature and time had significant effects on biodegradability, while plasticizer type and citric acid amount were less influential. The RSM model showed a medium predictive performance, with R² of 81.53%, indicating a good fit with experimental data. These results confirm the potential of wheat bran as a valuable raw material for producing eco-friendly bioplastics.
note de thèses :	Mémoire de master des siences agronomiques