Accurate fish-freshness prediction label based on red cabbage anthocyanins

Fang, Shuliang; Guan, Zhihao; Su, Cheng; Zhang, Wenshuo; Zhu, Jian; Zheng, Yuewei; Li, Houbin; Zhao, Pingping; Liu, Xinghai

doi:10.1016/j.foodcont.2022.109018

Cited by 41 publications

(11 citation statements)

References 44 publications

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“…Another interesting study is the development of an anthocyanin-based indicator and a mobile phone application by Fang et al Visual indicators are integrated into a mobile app with the ability to capture images and upload and display real-time results to automate the entire identification process, with a prediction accuracy of 92.6%. The analysis speed of this method is fast, which provides a basis for the development of other chromaticity indicators on mobile phones [47].…”

Section: Natural Colorantsmentioning

confidence: 99%

Emerging Approach for Fish Freshness Evaluation: Principle, Application and Challenges

Zhang

Sun

Sang

et al. 2022

Foods

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Affected by micro-organisms and endogenous enzymes, fish are highly perishable during storage, processing and transportation. Efficient evaluation of fish freshness to ensure consumer safety and reduce raw material losses has received an increasing amount of attention. Several of the conventional freshness assessment techniques have plenty of shortcomings, such as being destructive, time-consuming and laborious. Recently, various sensors and spectroscopic techniques have shown great potential due to rapid analysis, low sample preparation and cost-effectiveness, and some methods are especially non-destructive and suitable for online or large-scale operations. Non-destructive techniques typically respond to characteristic substances produced by fish during spoilage without destroying the sample. In this review, we summarize, in detail, the principles and applications of emerging approaches for assessing fish freshness including visual indicators derived from intelligent packaging, active sensors, nuclear magnetic resonance (NMR) and optical spectroscopic techniques. Recent developments in emerging technologies have demonstrated their advantages in detecting fish freshness, but some challenges remain in popularization, optimizing sensor selectivity and sensitivity, and the development of algorithms and chemometrics in spectroscopic techniques.

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Section: Natural Colorantsmentioning

confidence: 99%

Emerging Approach for Fish Freshness Evaluation: Principle, Application and Challenges

Zhang

Sun

Sang

et al. 2022

Foods

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“…(b) Red cabbage anthocyanin-incorporated agarose film in conjunction with a smartphone for the detection of milk freshness . (c) Colorimetric composite-based indicator for smartphone-assisted detection of fish freshness . A hydrogel ink containing red cabbage anthocyanins, carboxymethyl chitosan, and oxidized sodium alginate was printed on a cellulose paper to form the indicator.…”

Section: Natural Pigments As Ph Indicatorsmentioning

confidence: 99%

“…Afterward, the mixture is fed in an extruder, heated with gradual temperature rise, and extruded into a film . Moreover, biodegradable freshness indicators can be made by coating or printing a pigment-containing layer on the surface of the solid support, immersing the solid support in a pigment solution followed by drying, or electrospinning fibrous structures incorporated with the halochromic dye. − …”

Section: Biodegradable Freshness Indicatorsmentioning

confidence: 99%

“…The starch/gelatin composite modified with red radish extract showed dynamic color changes during food storage, with a smartphone that worked in tandem with the indicators by capturing film color, digitalizing data with an image processing software, and linking color signals to different freshness levels. In another study, an anthocyanin-loaded composite comprised of carboxymethyl chitosan and oxidized sodium alginate was developed to detect freshness of fish products (Figure c) . Natural pigments and film-forming components were dispersed in silica sol to generate a hydrogel ink, which was then printed on a cellulose paper to obtain the indicator film.…”

Section: Biodegradable Freshness Indicatorsmentioning

confidence: 99%

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Boosting Food System Sustainability through Intelligent Packaging: Application of Biodegradable Freshness Indicators

Boyarkina

Liao

Lin

et al. 2023

ACS Food Sci. Technol.

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World hunger is getting worse, while one-third of foods produced around the globe is wasted and never consumed. It is vital in reducing food waste to promote the sustainability of agri-food systems. Intelligent packaging embedded with freshness indicators can monitor food freshness in a real-time manner and be deployed for cutting food waste produced due to predetermined expiration date and informing consumers of food safety. Biodegradable halochromic films have been increasingly utilized as freshness indicators because of their low environmental impact. In this review, recent advances in biodegradable halochromic indicators for intelligent packaging are reported. The pH-responsive behaviors of natural pigments, the development of biodegradable solid supports for freshness indicators, the colorimetric response of freshness indicators to food products and simulated models, and future challenges in this field are discussed. Particularly, novel technologies coupled with halochromic indictors are highlighted, including sensor arrays, nanocomposites, smartphone-assisted detection, and ink-free printing.

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“…In recent years, many nondestructive methods have found wide application for the quality and safety evaluation of marine products, including near-hyperspectral imaging and computer vision. Computer vision has been used to analyze digital images in order to perform rapid visual evaluations, on the basis of which spatial information regarding the tested samples, including size, shape, color, and texture, can be obtained [ 15 , 16 , 17 , 18 ]. Hyperspectral imaging provides the physical and geometric characteristics, such as shape, size, appearance and color, as well as the chemical composition of the analyzed sample, through spectral analysis [ 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

rGO-PDMS Flexible Sensors Enabled Survival Decision System for Live Oysters

Liu

Zhang

et al. 2023

Sensors

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The shell-closing strength (SCS) of oysters is the main parameter for physiological activities. The aim of this study was to evaluate the applicability of SCS as an indicator of live oyster health. This study developed a flexible pressure sensor system with polydimethylsiloxane (PDMS) as the substrate and reduced graphene oxide (rGO) as the sensitive layer to monitor SCS in live oysters (rGO-PDMS). In the experiment, oysters of superior, medium and inferior grades were selected as research objects, and the change characteristics of SCS were monitored at 4 °C and 25 °C. At the same time, the time series model was used to predict the survival rate of live oyster on the basis of changes in their SCS characteristics. The survival times of superior, medium and inferior oysters at 4 °C and 25 °C were 31/25/18 days and 12/10/7 days, respectively, and the best prediction accuracies for survival rate were 89.32%/82.17%/79.19%. The results indicate that SCS is a key physiological indicator of oyster survival. The dynamic monitoring of oyster vitality by means of flexible pressure sensors is an important means of improving oyster survival rate. Superior oysters have a higher survival rate in low-temperature environments, and our method can provide effective and reliable survival prediction and management for the oyster industry.

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Accurate fish-freshness prediction label based on red cabbage anthocyanins

Cited by 41 publications

References 44 publications

Emerging Approach for Fish Freshness Evaluation: Principle, Application and Challenges

Emerging Approach for Fish Freshness Evaluation: Principle, Application and Challenges

Boosting Food System Sustainability through Intelligent Packaging: Application of Biodegradable Freshness Indicators

rGO-PDMS Flexible Sensors Enabled Survival Decision System for Live Oysters

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