Development of rapid, sensitive and selective fluorimetric method for determination of 1-naphthalene acetic acid in cucumber by using magnetite-molecularly imprinted polymer

İlktaç, Raif; Gümüş, Zinar Pınar; Aksuner, Nur

doi:10.1016/j.saa.2019.03.061

Cited by 11 publications

(3 citation statements)

References 34 publications

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“…One of methods of raising a quality of ready products and eliminating the aforesaid defects is to improve the marinade technology at the expanse of using high-quality vegetable raw materials, determining an optimal recipe with using natural fruit vinegar [10][11][12]. The analysis of modern studies on the quality improvement of vegetable tinned food testifies to the necessity to optimize a recipe of marinades at preparing snack tinned food for raising a food value of ready products [13][14][15].…”

Section: Problem Reviewmentioning

confidence: 99%

Study of Quality of Snack Gherkin Tinned Food

Zubkova

Stoianova

2020

EUREKA: Life Sciences

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This work considers a problem of raising a marinade quality for producing snack gherkin tinned food. There is offered a new way for raising a marinade food value. The aim of the work is to raise a tinned food quality at the expanse of recipe peculiarities of ingredients. There is offered to produce snack tinned food with adding mustard. The tinned food contains gherkin, sugar refined sunflower oil, kitchen vinegar 9 %, salt, dry mustard, grinded red pepper and chopped garlic. An optimal recipe for diminishing mass consumption of the raw materials is developed in the study. The tinned food recipe was modeled by the simplex method that allowed to get an optimal variant with a maximal complex quality parameter. According to the recipe, a bank of І-82-500 needs: gherkin-375 g, sugar-37.5 g, refined sunflower oil-37.5 g., kitchen vinegar 9 %-37.75 g, salt-3.75 g, garlic-3.75 g, mustard (powder)-3.75 g, grinded red pepper-1 g. It is established, that the new snack tinned food is characterized by high organoleptic properties. The technological scheme at producing the snack tinned food "Pickled gherkins with mustard" includes the following processes: preparation of the raw materials (cleaning, sorting), soaking in cold water for 5-8 hours; inspection; pouring with marinade; mixing and infusion; packing; closing; sterilization, formation of ready products. Gherkins are processed by the standard technology for pickled vegetables. Physical-chemical parameters in the raw materials and ready products were studied during the work: the content of soluble dry substances-by the refractometric method; the total content of organic acids-by titration; рН-medium-by the potentiometric method; the content of nitrates-by the ionometric method. Mustard was added for raising a food value and quality of the snack tinned food. It is healthy, because it improves the appetite, disintegrates fats and facilitates digestion of protein meals, at that activating metabolism. Main healthy properties of mustard are antimicrobial, antifungal, antioxidant and anti-inflammatory effects. Added spices and garlic give a pleasant taste and add the composition of mineral substances. The developed recipe is designed for production technological lines and recommended for implementation at processing enterprises. The conducted work testifies to the expedience of producing new types of snack tinned food, which food value is increased and organoleptic parameters are improved at the expanse of ingredients.

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Section: Problem Reviewmentioning

confidence: 99%

Study of Quality of Snack Gherkin Tinned Food

Zubkova

Stoianova

2020

EUREKA: Life Sciences

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“…Zhu et al ( 2021 ) reported Indole-3-acetic acid bound to the minor groove region rich in G–C base-pairs in ctDNA, which disturbed the structure of ctDNA but did not induce DNA damage. Studies have shown that NAA has a stimulating effect on sensitive skin and mucous membranes in the human eyes and respiratory tract, etc (Ilktaç et al, 2019 ). The oral LD 50 of NAA for rats, mice, and mammals is 1, 0.743, and 1 g/kg, respectively (Nikolelis et al, 2008 ).…”

Section: Introductionmentioning

confidence: 99%

Multi-Spectroscopic and Molecular Simulation Approaches to Characterize the Intercalation Binding of 1-Naphthaleneacetic Acid With Calf Thymus DNA

Hu¹,

Luo²,

Zhou³

et al. 2021

Front. Toxicol.

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1–Naphthaleneacetic acid (NAA), having high-quality biological activity and great yield-increasing potential in agricultural production, is a broad-spectrum plant growth regulator. Although NAA is of low toxicity, it can affect the balance of the human metabolism and damage the body if it is used in high quantity for a long time. In this study, the interaction of NAA with calf thymus DNA (ctDNA) was investigated under simulated human physiological acidity (pH 7.4) using fluorescence, ultraviolet-visible absorption, and circular dichroism spectroscopy combined with viscosity measurements and molecular simulation techniques. The quenching of the endogenous fluorescence of NAA by ctDNA, observed in the fluorescence spectrum experiment, was a mixed quenching process that mainly resulted from the formation of the NAA–ctDNA complex. NAA mainly interacted with ctDNA through hydrophobic interaction, and the binding constant and quenching constant at room temperature (298 K) were 0.60 × 105 L mol−1 and 1.58 × 104 L mol−1, respectively. Moreover, the intercalation mode between NAA and ctDNA was verified in the analysis of melting point, KI measurements, and the viscosity of ctDNA. The results were confirmed by molecular simulation, and it showed that NAA was enriched near the C–G base of ctDNA. As shown in circular dichroism spectra, the positive peak intensity of ctDNA intensified along with a certain degree of redshift, while the negative peak intensity decreased after binding with NAA, suggesting that the binding of NAA induced the transformation of the secondary structure of ctDNA from B-form to A-form. These researches will help to understand the hazards of NAA to the human body more comprehensively and concretely, to better guide the use of NAA in industry and agriculture.

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“…In addition, they can specifically recognize the template molecules. At present, the application of magnetic molecular imprinted materials has expanded from small molecules to biological macromolecules. − Magnetic protein imprinted microspheres and carbon nanotubes have been successfully developed and exhibit excellent application properties. In our previous study, a battery of surface BSA imprinted thermoresponsive magnetic polymer microspheres − were prepared through surface graft copolymerization.…”

Section: Introductionmentioning

confidence: 99%

Self-Driven BSA Surface Imprinted Magnetic Tubular Carbon Nanofibers: Fabrication and Adsorption Performance

Yang

Chen

Wang

et al. 2020

ACS Sustainable Chem. Eng.

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The development of materials with high adsorption capacity and selectivity, simple operation, and short adsorption equilibrium time are still a focus in the domain of imprinting techniques. Based on this, a novel water-compatible imprinted material (SIPMTF) on the surface of magnetic carriers is prepared by one-pot method. Surface imprinted magnetic tubular carbon nanofibers (SIPMTFs) are based on magnetic tubular carbon nanofibers (MTFs). Dopamine (DA) is selected as functional monomer. Due to the magnetic properties, SIPMTFs can efficiently separate high-purity proteins with energy savings compared with other methods. MTFs are composed of carbon nanofibers with porous tube walls and Fe nanoparticles loaded inside the tube. This constitution endows SIPMTFs with self-driven adsorption properties and magnetic responsiveness. Thereby, these structures simplify the separation process while increasing the adsorption amount. In addition, the adsorption speed is accelerated. The adsorption capacity of SIPMTFs for bovine serum albumin (BSA) reaches 430.39 mg/g in 30 min. The satisfactory imprinting factor (IF) is 2.85. More significantly, the selectivity coefficients of SIPMTFs for lysozyme (Lyz), human serum albumin (HSA), ovalbumin (OVA), and cytochrome C (Cyt C) are 4. 48, 6.88, 3.49, and 4.55. Furthermore, SIPMTFs could selectively rebind BSA from fetal bovine serum (FBS) and exhibit excellent regenerative properties, which fits well with the concept of green sustainable development. These results indicate that MTFs can be used as a novel class of carriers in the domain of molecular imprinting to isolate and purify proteins.

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Development of rapid, sensitive and selective fluorimetric method for determination of 1-naphthalene acetic acid in cucumber by using magnetite-molecularly imprinted polymer

Cited by 11 publications

References 34 publications

Study of Quality of Snack Gherkin Tinned Food

Study of Quality of Snack Gherkin Tinned Food

Multi-Spectroscopic and Molecular Simulation Approaches to Characterize the Intercalation Binding of 1-Naphthaleneacetic Acid With Calf Thymus DNA

Self-Driven BSA Surface Imprinted Magnetic Tubular Carbon Nanofibers: Fabrication and Adsorption Performance

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