Effect on the Properties of Edible Starch-Based Films by the Incorporation of Additives: A Review

Abstract

At present, people more actively pursuing biodegradable-based food packaging to lower the environmental problems of plastic-based packaging. Starch could become a promising alternative to plastic because of its properties (easily available, nontoxic, tasteless, biodegradable, ecofriendly, and edible). This review article is focused mainly on the impact of the properties of starch-based biodegradable films, such as their thickness, morphology, and optical, water-barrier, mechanical, oxygen-barrier, antioxidant, and antimicrobial properties, after the incorporation of additives, and how such films fulfill the demands of the manufacturing of biodegradable and edible food-based film with preferable performance. The incorporation of additives in starch-based films is largely explained by its functioning as a filler, as shown via a reduction in water and oxygen permeability, increased thickness, and better mechanical properties. Additives also showed antimicrobial and antioxidant properties in the films/coatings, which would positively impact the shelf life of coated or wrapped food material.

Nanoscopic Characterization of Starch Biofilms Extracted from the Andean Tubers Ullucus tuberosus, Tropaeolum tuberosum, Oxalis tuberosa, and Solanum tuberosum

“…The WVP data obtained for films yielded from melloco and mashua were higher than those related to oca and potato. This could be attributed to a strong interaction of starch-starch molecules in potato and oca films and a more flexible starch chain in melloco and mashua films [ 3 ]. Solubility could be related to the hydrophilic nature of starch-based films: those with greater crystalline starch content are sensitive to moisture and relative atmospheric humidity [ 25 , 26 ].…”

“…However, the properties of these films are dependent on their chemical composition. Amylose/amylopectin percentage, plasticizer (as glycerol) concentration, or the presence of other trace elements during sample preparation, such as lipids and proteins, may entail important structural differences in each resulting starch film [ 3 , 4 , 5 , 6 , 7 , 8 ]. Hence, a proper selection of the starch source is of the utmost importance to optimize the starch-based film attributes for a particular application.…”

Generation of Sulfonated Lignin-Starch Polymer and Its Use As a Flocculant

“…Thus, it is an excellent candidate for modifying TOL. 10,11 However, past studies primarily focused on the physical blending of starch and lignin, 12−15 and the generation of covalently bound starch-lignin macromolecule was rarely studied. Therefore, the first objective of this work was to make water-soluble TOL-starch copolymers with a high molecular weight.…”

Chitosan-Based Edible Coatings Containing Essential Oils to Preserve the Shelf Life and Postharvest Quality Parameters of Organic Strawberries and Apples during Cold Storage

“…However, this has led to a serious ecological problem because of their nonbiodegradability [ 10 , 11 ]. Their complete replacement by biodegradable and sustainable packaging materials is currently being studied and is desired by both the industry as well as the final consumers [ 12 ]. Edible coatings and films are among the newly developed biodegradable packaging materials.…”