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Author
Gilboy i Viñas, Maria
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Abstract
This final degree project has sought to use organic bioproducts of vegetable origin; apple pectin and potato starch; to apply them as components in the production of films for packag-ing; biodegradable and compostable.
The raw materials have been thoroughly described; apple pomace and potato; and its main components, and more specifically those of interest to produce the biofilms: cellulose, pectin, and starch.
Secondly, a series of biofilms with different proportions of the aforementioned components have been synthesized and their mechanical properties have been evaluated by Dynamic Mechanical Analysis (DMA) to determine which combination would be the most suitable to produce films that are appropriate to use as packaging in the food industry. It has been de-termined that adding 20% cellulose by weight to a film with a pectin/starch/glycerol ratio of 39/31/30 by weight results in the highest storage modulus among all the biofilms that have been analyzed, and consequently the highest stability, although with low elasticity.
Finally, the requirements to produce biofilms have been studied, controlling every stage of the process to make it as sustainable as possible.
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