pH-sensitive films containing anthocyanins extracted from black bean seed coat and red cabbage

Prietto, Luciana; Mirapalhete, Taiane Correa; Pinto, Vânia Zanella; Hoffmann, Jéssica Fernanda; Vanier, Nathan Levien; Lim, Loong‐Tak; Dias, Álvaro Renato Guerra; Zavareze, Elessandra da Rosa

doi:10.1016/j.lwt.2017.03.006

Cited by 310 publications

(144 citation statements)

References 17 publications

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“…Bioactive components are usually incorporated into polysaccharide matrix and final material is obtained by casting method or lyophilization. The bio-indicators have been investigated in different forms: as an insert pad inside commercial package, or as an edible film indicator that is coated directly on food product [25][26][27][28].…”

Section: Intelligent Packagingmentioning

confidence: 99%

Prospect of Polysaccharide-Based Materials as Advanced Food Packaging

Nešić

Cabrera‐Barjas

Dimitrijević-Branković

et al. 2019

Molecules

227

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The use of polysaccharide-based materials presents an eco-friendly technological solution, by reducing dependence on fossil resources while reducing a product's carbon footprint, when compared to conventional plastic packaging materials. This review discusses the potential of polysaccharides as a raw material to produce multifunctional materials for food packaging applications. The covered areas include the recent innovations and properties of the polysaccharide-based materials. Emphasis is given to hemicelluloses, marine polysaccharides, and bacterial exopolysaccharides and their potential application in the latest trends of food packaging materials, including edible coatings, intelligent films, and thermo-insulated aerogel packaging.

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Section: Intelligent Packagingmentioning

confidence: 99%

Prospect of Polysaccharide-Based Materials as Advanced Food Packaging

Nešić

Cabrera‐Barjas

Dimitrijević-Branković

et al. 2019

Molecules

227

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“…The structure of anthocyanins is provided in Figure 5. Because of their color change in different pH and broad color spectrum, anthocyanins can be used as a pH indicator (Choi et al, 2017;Prietto et al, 2017). Anthocyanins are highly unstable and easily degraded.…”

Section: Acid-base Indicatormentioning

confidence: 99%

The Integration of Green Chemistry Principles into Small Scale Chemistry Practicum for Senior High School Students

Listyarini

Pamenang

Harta

et al. 2019

JPII

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Implementation of Principles of Green Chemistry in teaching chemistry can become an essential approach to enhance students' awareness of environmental problem. In contrast with the goal of sustainability, chemistry practicum normally deals with chemicals and waste management which contribute to environmental problem. A shift toward more sustainable and economical experiments is essential to maintain the existence of the practicum in senior high curriculum. Small Scale Chemistry (SSC) practicum is one of the approaches to promote sustainability in chemistry practicum by using smaller scale and safer apparatus. It is expected to produce less waste. It is also safer and more economical chemistry experiment. This research aims to study the integration of principles of green chemistry in chemistry practicum by using SSC experiment. This study investigates two main topics in senior high school chemistry subject: electrochemistry and acid-base indicator. This study has shown the practice of integration of the principles of green chemistry approach into senior high school chemistry practicum through SSC. The experiments demonstrated in this study enable us to integrate Principles of Green Chemistry in terms of preventing waste, using less hazardous chemical, and conducting safer experiments which can be implemented in senior high school chemistry practicum.

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“…A further increase in pH to 10.0 resulted in a decrease of the a* value to negative and an increase in the b* value, because the change in RCE structure to chalcone [52]. The ΔE values of the AFR10 and AFR15 films exceeded 5, which indicates that the color differences could be observed by the eye [53]. in pH from 3.0 to 6.0, the a* value decreased, but the b* value showed the opposite trend, owing to an increase in the pseudo-base carbinol structure of the RCE.…”

Section: Chroma-response In Buffer Solutionmentioning

confidence: 98%

Preparation, Characterization and Application of a Low Water-Sensitive Artemisia sphaerocephala Krasch. Gum Intelligent Film Incorporated with Anionic Cellulose Nanofiber as a Reinforcing Component

Liang

Wang

2020

Polymers

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A low-water-sensitive Artemisia sphaerocephala Krasch. gum (ASKG) based intelligent film was developed. Red cabbage extracts (RCE) was selected as a natural pH-sensitive indicator, and anionic cellulose nanofiber (ACNF) was added as a hydrophobic and locking host. The zeta potential, rheology, Fourier-transform infrared spectroscopy, X-ray diffractometry, and release results indicated that the RCE was locked by the ACNF via electrostatic interactions, moreover, broke the original complicated network and ordered arrangement of polymer molecules in the developed intelligent films. RCE addition decreased the tensile strength, oxygen, and water vapor barrier properties and light transmission of the developed intelligent films, while increasing the elongation at break. The films could respond to buffer solutions and NH3 through different color changes. The developed intelligent film was hydrophobic, which could precisely detect the freshwater shrimp freshness in real time via color changes, which indicated that the films have potential in intelligent packaging and gas-sensing label fields.

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pH-sensitive films containing anthocyanins extracted from black bean seed coat and red cabbage

Cited by 310 publications

References 17 publications

Prospect of Polysaccharide-Based Materials as Advanced Food Packaging

Prospect of Polysaccharide-Based Materials as Advanced Food Packaging

The Integration of Green Chemistry Principles into Small Scale Chemistry Practicum for Senior High School Students

Preparation, Characterization and Application of a Low Water-Sensitive Artemisia sphaerocephala Krasch. Gum Intelligent Film Incorporated with Anionic Cellulose Nanofiber as a Reinforcing Component

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