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- W2618968506 abstract "Intelligent packaging is an emerging area of food technology that can provide better preservation and be of further convenience for consumers. It is recommended that biodegradable materials be used to develop low-impact designs for better packaging, which could benefit the environment by simply expanding their use to new areas. In this work, corn starch, glycerol and blueberry powder (with and without prior fruit bleaching) were used to produce films by casting. Blueberry powder, a co-product from juice processing, which is rich in anthocyanins, was added in the films to evaluate its potential as a colorimetric indicator, due to the ability of anthocyanin to change color when placed in an acidic or basic environment. After the films were immersed in different buffer solutions, visual color changes were observed, where the films became reddish at acidic pH and bluish at basic pH. The ΔE* values were greater than 3, suggesting a visually perceptible change to the human eye. The samples with fruit bleaching (CB) were visually darker (lower luminance values), while the samples without bleaching (SB) had a lighter color and higher brightness, represented by larger L* values. These results indicate the potential of blueberry powder as a pH indicator for intelligent food packaging or even for sensing food deterioration." @default.
- W2618968506 created "2017-06-05" @default.
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- W2618968506 date "2017-11-01" @default.
- W2618968506 modified "2023-10-18" @default.
- W2618968506 title "Effect of blueberry agro-industrial waste addition to corn starch-based films for the production of a pH-indicator film" @default.
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- W2618968506 doi "https://doi.org/10.1016/j.ijbiomac.2017.05.149" @default.
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