Development of antioxidant, antimicrobial and ammonia-sensitive films based on quaternary ammonium chitosan, polyvinyl alcohol and betalains-rich cactus pears (Opuntia ficus-indica) extract

Yao, Xiyu; Hu, Huixia; Qin, Yan; Liu, Jun

doi:10.1016/j.foodhyd.2020.105896

Cited by 93 publications

(45 citation statements)

References 41 publications

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“…Films were introduced into the headspace of the shrimp container to evaluate its activity. The addition of CPE (2 and 3% wt %) provided color changes of the films, moving from an original purple color to an orange when the freshness of the shrimp decreased at 24 h [ 70 ]. Additionally, the addition of CPE to the films enhanced the UV-Vis light barrier, the elongation at break, antioxidant and antimicrobial properties.…”

Section: Bio-based Sensors—applicationsmentioning

confidence: 99%

Bio-Based Sensors for Smart Food Packaging—Current Applications and Future Trends

Rodrigues

Souza

Coelhoso

et al. 2021

Sensors

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Intelligent food packaging is emerging as a novel technology, capable of monitoring the quality and safety of food during its shelf-life time. This technology makes use of indicators and sensors that are applied in the packaging and that detect changes in physiological variations of the foodstuffs (due to microbial and chemical degradation). These indicators usually provide information, e.g., on the degree of freshness of the product packed, through a color change, which is easily identified, either by the food distributor and the consumer. However, most of the indicators that are currently used are non-renewable and non-biodegradable synthetic materials. Because there is an imperative need to improve food packaging sustainability, choice of sensors should also reflect this requirement. Therefore, this work aims to revise the latest information on bio-based sensors, based on compounds obtained from natural extracts, that can, in association with biopolymers, act as intelligent or smart food packaging. Its application into several perishable foods is summarized. It is clear that bioactive extracts, e.g., anthocyanins, obtained from a variety of sources, including by-products of the food industry, present a substantial potential to act as bio-sensors. Yet, there are still some limitations that need to be surpassed before this technology reaches a mature commercial stage.

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Section: Bio-based Sensors—applicationsmentioning

confidence: 99%

Bio-Based Sensors for Smart Food Packaging—Current Applications and Future Trends

Rodrigues

Souza

Coelhoso

et al. 2021

Sensors

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“…The antimicrobial effect observed for E. coli was greater than for S. aureus . All samples containing CS showed excellent antimicrobial effect [ 106 , 107 , 108 , 109 ]. This study shows, on the one hand, that CS would be effective against more than one type of microorganism, filamentous fungi, as well as bacteria, but in the case of bacteria a greater activity against Gram-negative.…”

Section: Chitosan (Cs)mentioning

confidence: 99%

Two Fascinating Polysaccharides: Chitosan and Starch. Some Prominent Characterizations for Applying as Eco-Friendly Food Packaging and Pollutant Remover in Aqueous Medium. Progress in Recent Years: A Review

2021

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The call to use biodegradable, eco-friendly materials is urgent. The use of biopolymers as a replacement for the classic petroleum-based materials is increasing. Chitosan and starch have been widely studied with this purpose: to be part of this replacement. The importance of proper physical characterization of these biopolymers is essential for the intended application. This review focuses on characterizations of chitosan and starch, approximately from 2017 to date, in one of their most-used applications: food packaging for chitosan and as an adsorbent agent of pollutants in aqueous medium for starch.

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“…Owing to the biomedically-relevant properties of Opuntia cactuses, it is worth mentioning that several plant extracts and Opuntia-isolated compounds are endowed with antimicrobial, antioxidant, anti-inflammatory, antidiabetic, neuroprotective [3,[19][20][21][22][23][24][25][26][27][28][29], and antiviral [30,31] properties. Not less importantly, some phytochemicals isolated from nopal cactus waste peels showed anti-pneumonia properties [32].…”

Section: Introductionmentioning

confidence: 99%

In Silico Investigation on the Interaction of Chiral Phytochemicals from Opuntia ficus-indica with SARS-CoV-2 Mpro

Vicidomini

Roviello

2021

Symmetry

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Opuntia ficus-indica is a cactaceous plant native to America but, nowadays, widely found worldwide, having been the most common domesticated species of cactus grown as a crop plant in semiarid and arid parts of the globe, including several Mediterranean basin countries. Opuntia ficus-indica can be regarded as a medicinal plant, being source of numerous bioactive phytochemicals such as vitamins, polyphenols, and amino acids. The urgent need for therapeutic treatments for the COronaVIrus Disease 19 (COVID-19), caused by the Severe Acute Respiratory Syndrome (SARS)-Coronavirus (CoV)-2, justifies the great attention currently being paid not only to repurposed antiviral drugs, but also to natural products and herbal medications. In this context, the anti-COVID-19 utility of Opuntia ficus-indica as source of potential antiviral drugs was investigated in this work on the basis of the activity of some of its phytochemical constituents. The antiviral potential was evaluated in silico in docking experiments with Mpro, i.e., the main protease of SARS-CoV-2, that is one of the most investigated protein targets of therapeutic strategies for COVID-19. By using two web-based molecular docking programs (1-Click Mcule and COVID-19 Docking Server), we found, for several flavonols and flavonol glucosides isolated from Opuntia ficus-indica, good binding affinities for Mpro, and in particular, binding energies lower than −7.0 kcal/mol were predicted for astragalin, isorhamnetin, isorhamnetin 3-O-glucoside, 3-O-caffeoyl quinic acid, and quercetin 5,4′-dimethyl ether. Among these compounds, the chiral compound astragalin showed in our in silico studies the highest affinity for Mpro (−8.7 kcal/mol) and also a low toxicity profile, emerging, thus, as an interesting protease inhibitor candidate for anti-COVID-19 strategies.

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Development of antioxidant, antimicrobial and ammonia-sensitive films based on quaternary ammonium chitosan, polyvinyl alcohol and betalains-rich cactus pears (Opuntia ficus-indica) extract

Cited by 93 publications

References 41 publications

Bio-Based Sensors for Smart Food Packaging—Current Applications and Future Trends

Bio-Based Sensors for Smart Food Packaging—Current Applications and Future Trends

Two Fascinating Polysaccharides: Chitosan and Starch. Some Prominent Characterizations for Applying as Eco-Friendly Food Packaging and Pollutant Remover in Aqueous Medium. Progress in Recent Years: A Review

In Silico Investigation on the Interaction of Chiral Phytochemicals from Opuntia ficus-indica with SARS-CoV-2 Mpro

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