Ti surface modification with a natural antioxidant and antimicrobial agent

Dumitriu, Cristina; Ungureanu, Camelia; Popescu, Simona; Tofan, Vlad; Popescu, Marian; Pîrvu, Cristian

doi:10.1016/j.surfcoat.2015.06.063

Cited by 12 publications

(7 citation statements)

References 51 publications

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“…Carotenoids synthesized by yeasts of the Rhodotorula and Sporobolomyces genera show strong anti-microbial activity [ 14 , 115 – 117 ]. Ungureanu and Ferdes [ 14 ] determined the anti-microbial activity of methanolic torularhodin extracts.…”

Section: Properties and Potential Applications Of Torulene And Torulamentioning

confidence: 99%

Torulene and torularhodin: “new” fungal carotenoids for industry?

et al. 2018

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Torulene and torularhodin represent the group of carotenoids and are synthesized by yeasts and fungi. The most important producers of these two compounds include yeasts of Rhodotorula and Sporobolomyces genera. The first reports confirming the presence of torulene and torularhodin in the cells of microorganisms date to the 1930s and 1940s; however, only in the past few years, the number of works describing the properties of these compounds increased. These compounds have strong anti-oxidative and anti-microbial properties, and thus may be successfully used as food, feedstock, and cosmetics additives. In addition, tests performed on rats and mice showed that both torulene and torularhodin have anti-cancerous properties. In order to commercialize the production of these two carotenoids, it is necessary to obtain highly efficient yeast strains, for example, via mutagenization and optimization of cultivation conditions. Further studies on the activity of torulene and torularhodin on the human body are also needed.

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Section: Properties and Potential Applications Of Torulene And Torulamentioning

confidence: 99%

Torulene and torularhodin: “new” fungal carotenoids for industry?

et al. 2018

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“…Using the equipment-corresponding software, the spectra were processed using background correction and automatic smoothing. For the TiNT sample (Figure 4a, red line), C-O-C bond and CH 2 groups at 1360 cm −1 (in inset) and respective at 2924 cm −1 are present, peak at 1638 cm −1 correspond to coordinated H 2 O as well as Ti-OH, and C-C stretching appears at 1074 cm −1 [27]. Traces of organic electrolyte remained.…”

Section: Resultsmentioning

confidence: 96%

“…In Figure 4a, a comparation can be seen between Ti and TiNT spectra. Between 3000 and 3500 cm −1 , the broad peak is assigned for -OH groups [27]. Other characteristic peaks are visible for the anodized sample.…”

Section: Discussionmentioning

confidence: 94%

Functionalized TiO2 Nanotube Platform for Gliadin Electroanalysis

2020

Self Cite

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The present paper presents a gliadin detection method. This method is based on a modified Ti electrode. Modification was performed by a simple and cheap anodization. Then, a layer of graphene oxide was added, and gliadin antibody was fixed on the electrode surface. Using this complex system, electrochemical impedance spectroscopy was used for gliadin detection. Solutions with known gliadin (a fraction from gluten) content were used for analysis. Impedance measured at a certain frequency and coating resistance were analyzed. Better results (good linearity and lower detection limit) were obtained by plotting impedance at a certain frequency versus gliadin concentration. Coating resistance was proved to be in linear dependency with gliadin concentration only at lower concentrations. This system based on titanium nanostructured electrode has the potential to be used for gluten contamination detection from foods.

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“…In contrast, four reports were primarily focused on Candida spp. [83,84]. Studies have suggested potential applications of Rhodotorula spp., helpful in carotenoid synthesizing, as an alternate source of natural preservers (antimicrobial and antioxidant), pigments (colorants), and nutraceuticals.…”

Section: Biological Activity Of Carotenoidsmentioning

confidence: 99%

Recent Advances in the Carotenoids Added to Food Packaging Films: A Review

Roy,

Deshmukh,

Tripathi

et al. 2023

Foods

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Food spoilage is one of the key concerns in the food industry. One approach is the improvement of the shelf life of the food by introducing active packaging, and another is intelligent packaging. Detecting packed food spoilage in real-time is key to stopping outbreaks caused by food-borne diseases. Using active materials in packaging can improve shelf life, while the nonharmful color indicator can be useful to trace the quality of the food through simple color detection. Recently, bio-derived active and intelligent packaging has gained a lot of interest from researchers and consumers. For this, the biopolymers and the bioactive natural ingredient are used as indicators to fabricate active packaging material and color-changing sensors that can improve the shelf life and detect the freshness of food in real-time, respectively. Among natural bioactive components, carotenoids are known for their good antimicrobial, antioxidant, and pH-responsive color-indicating properties. Carotenoids are rich in fruits and vegetables and fat-soluble pigments. Including carotenoids in the packaging system improves the film’s physical and functional performance. The recent progress on carotenoid pigment-based packaging (active and intelligent) is discussed in this review. The sources and biological activity of the carotenoids are briefly discussed, and then the fabrication and application of carotenoid-activated packaging film are reviewed. The carotenoids-based packaging film can enhance packaged food’s shelf life and indicate the freshness of meat and vegetables in real-time. Therefore, incorporating carotenoid-based pigment into the polymer matrix could be promising for developing novel packaging materials.

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Ti surface modification with a natural antioxidant and antimicrobial agent

Cited by 12 publications

References 51 publications

Torulene and torularhodin: “new” fungal carotenoids for industry?

Torulene and torularhodin: “new” fungal carotenoids for industry?

Functionalized TiO2 Nanotube Platform for Gliadin Electroanalysis

Recent Advances in the Carotenoids Added to Food Packaging Films: A Review

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