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Recovery of Pectin from Plantain Peels and Transformation into Composite Films Using a Green Approach.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Recovery of Pectin from Plantain Peels and Transformation into Composite Films Using a Green Approach./
作者:	Xie, Jiayu.
面頁冊數:	1 online resource (114 pages)
附註:	Source: Masters Abstracts International, Volume: 84-10.
Contained By:	Masters Abstracts International84-10.
標題:	Dietary fiber. -
電子資源:	click for full text (PQDT)
ISBN:	9798377678830

Recovery of Pectin from Plantain Peels and Transformation into Composite Films Using a Green Approach.
Xie, Jiayu.

Recovery of Pectin from Plantain Peels and Transformation into Composite Films Using a Green Approach. - 1 online resource (114 pages)

Source: Masters Abstracts International, Volume: 84-10.

Thesis (M.S.)--McGill University (Canada), 2022.

Includes bibliographical references

The growing global population and its associated industrial activities have increased the generation of by-products from food harvesting and processing in the Agri-food industry. Current methods of disposal of such waste lead to harmful environmental impacts; thus, stimulating much attention in research to develop innovative waste management approaches to help mediate the waste disposal problem by transforming them into profitable high value-added products. Plantain peels are major Agri-food waste in many developing countries with limited commercial value. Pectin, a major polysaccharide in plantain peels, is a biopolymer with great potential for application in food, biomaterials, biomedicine, and etc. Various green extraction methods of pectin have been widely studied in several sources including citrus peels, apple pomace, mango peels, cocoa husks, corn cobs, and others. However, similar studies on plantain peels are yet to be established despite the high volume of this waste produced in many developing countries. Pectin film is an emerging food-related application of pectin in recent years, but the functionality is limited by its low mechanical properties and poor moisture resistance. Beeswax solid lipid nanoparticles (BSLNs) has proved to be effective in improving the mechanical and water barrier properties for some polysaccharide films, but it has not yet been investigated in pectin films. In this research, pectin was firstly recovered from plantain peels by green approach with cellulase. The highest yield of pectin on dry basis was 13.38%. The most yield of pure pectin was obtained with 50U of cellulase at 50 ℃ and pH 4.5. Plantain peel pectin had degree of esterification at 43.43-48.23% ( < 50%), thus was characterized as a low methoxy pectin and the result shew that the enzymatic treatment did not significantly affect the degree of esterification. The recovered pectin was subsequently transformed into composite films and compared with citrus peel pectin films, for water and light barrier properties, mechanical attributes, conformational change, and microstructure. The plantain peel pectin and citrus peel pectin both produced films with significantly (P ≤ 0.5) improved water and light barrier properties with BSLNs incorporation. The addition of different concentrations of BSLNs was shown to enhance some mechanical properties of plantain peel pectin films, such as tensile strength and Young's Modulus but decreased the tensile strength and elongation at break of citrus peel pectin films. This work provides a novel approach to manage plantain peels waste and contributes new knowledge in pectin films for potential food packaging usage and sustainable resource management.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798377678830Subjects--Topical Terms:

1437719
Dietary fiber.
Index Terms--Genre/Form:

554714
Electronic books.

Recovery of Pectin from Plantain Peels and Transformation into Composite Films Using a Green Approach.
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520 $a The growing global population and its associated industrial activities have increased the generation of by-products from food harvesting and processing in the Agri-food industry. Current methods of disposal of such waste lead to harmful environmental impacts; thus, stimulating much attention in research to develop innovative waste management approaches to help mediate the waste disposal problem by transforming them into profitable high value-added products. Plantain peels are major Agri-food waste in many developing countries with limited commercial value. Pectin, a major polysaccharide in plantain peels, is a biopolymer with great potential for application in food, biomaterials, biomedicine, and etc. Various green extraction methods of pectin have been widely studied in several sources including citrus peels, apple pomace, mango peels, cocoa husks, corn cobs, and others. However, similar studies on plantain peels are yet to be established despite the high volume of this waste produced in many developing countries. Pectin film is an emerging food-related application of pectin in recent years, but the functionality is limited by its low mechanical properties and poor moisture resistance. Beeswax solid lipid nanoparticles (BSLNs) has proved to be effective in improving the mechanical and water barrier properties for some polysaccharide films, but it has not yet been investigated in pectin films. In this research, pectin was firstly recovered from plantain peels by green approach with cellulase. The highest yield of pectin on dry basis was 13.38%. The most yield of pure pectin was obtained with 50U of cellulase at 50 ℃ and pH 4.5. Plantain peel pectin had degree of esterification at 43.43-48.23% ( < 50%), thus was characterized as a low methoxy pectin and the result shew that the enzymatic treatment did not significantly affect the degree of esterification. The recovered pectin was subsequently transformed into composite films and compared with citrus peel pectin films, for water and light barrier properties, mechanical attributes, conformational change, and microstructure. The plantain peel pectin and citrus peel pectin both produced films with significantly (P ≤ 0.5) improved water and light barrier properties with BSLNs incorporation. The addition of different concentrations of BSLNs was shown to enhance some mechanical properties of plantain peel pectin films, such as tensile strength and Young's Modulus but decreased the tensile strength and elongation at break of citrus peel pectin films. This work provides a novel approach to manage plantain peels waste and contributes new knowledge in pectin films for potential food packaging usage and sustainable resource management.
520 $a La croissance de la population mondiale et les activites industrielles qui y sont associees ont augmente la production de sous-produits issus de la recolte et du traitement des aliments dans l'industrie agroalimentaire. Les methodes actuelles d'elimination de ces dechets ont des effets nefastes sur l'environnement, ce qui incite la recherche a developper des approches innovantes de gestion des dechets afin de resoudre le probleme de l'elimination des dechets en les transformant en produits rentables a haute valeur ajoutee. Les pelures de plantain sont des dechets agroalimentaires majeurs dans de nombreux pays en developpement, avec une valeur commerciale limitee. La pectine, un polysaccharide majeur dans les pelures de plantain, est un biopolymere avec un grand potentiel d'application dans l'alimentation, les biomateriaux, la biomedecine, etc. Diverses methodes d'extraction verte de la pectine ont ete largement etudiees dans plusieurs sources, notamment les ecorces d'agrumes, le marc de pomme, les ecorces de mangue, les coques de cacao, les epis de mais, etc. Cependant, des etudes similaires sur les pelures de plantain doivent encore etre etablies malgre le volume eleve de ces dechets produits dans de nombreux pays en developpement. Le film de pectine est une application alimentaire emergente de la pectine ces dernieres annees, mais sa fonctionnalite est limitee par ses faibles proprietes mecaniques et sa faible resistance a l'humidite. Les nanoparticules lipidiques solides de cire d'abeille (BSLN) se sont averees efficaces pour ameliorer les proprietes mecaniques et de barriere a l'eau de certains films de polysaccharides, mais elles n'ont pas encore ete etudiees pour les films de pectine. Dans cette recherche, la pectine a d'abord ete recuperee a partir de pelures de plantain par approche verte avec de la cellulase. Le rendement le plus eleve de pectine sur une base seche etait de 13,38%. Le rendement le plus eleve de pectine pure a ete obtenu avec 50U de cellulase a 50 ℃ et pH 4.5. La pectine de la peau de plantain avait un degre d'esterification de 43.43-48.23% ( < 50%), elle a donc ete caracterisee comme une pectine a faible teneur en methoxy et le resultat montre que le traitement enzymatique n'a pas affecte de maniere significative le degre d'esterification. La pectine recuperee a ensuite ete transformee en films composites et comparee aux films de pectine d'ecorce d'agrumes, pour les proprietes de barriere a l'eau et a la lumiere, les attributs mecaniques, le changement de conformation et la microstructure. La pectine d'ecorce de plantain et la pectine d'ecorce d'agrume ont toutes deux produit des films presentant des proprietes de barriere a l'eau et a la lumiere significativement ameliorees (P ≤ 0.5) avec l'incorporation de BSLN. L'ajout de differentes concentrations de BSLNs a permis d'ameliorer certaines proprietes mecaniques des films de pectine de plantain, telles que la resistance a la traction et le module de Young, mais a diminue la resistance a la traction et l'allongement a la rupture des films de pectine d'agrumes. Ce travail fournit une nouvelle approche pour gerer les dechets de peaux de plantain et apporte de nouvelles connaissances sur les films de pectine pour une utilisation potentielle dans l'emballage alimentaire et la gestion durable des ressources.
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