Enhanced Resistance to Amylolysis in Rice Kernels through Interaction with Chlorogenic Acid

Li, Yiling; Huang, Yu-Wen; Wu, Min-Zi; Wu, Tsung-Yen; Lai, Ping‐Shan; Sun, Nan-Nong; Saw, Chiou-Yeong; Li, Chia-Wei; Chau, Chi‐Fai

doi:10.3390/pr9050788

Cited by 3 publications

(2 citation statements)

References 38 publications

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“…PX and CAF molecules can be considered structural analogues of the purine bases and therefore a similar behavior was expected. Chlorogenic acid (5-CQA) was also selected, because of its known interaction with CAF, demonstrated by data from fluorescence quenching [41], FTIR [42], UV/Vis [43], and NMR spectroscopy [44,45]. D'Amelio et al and Belay et al have suggested that the stacking of CAF onto the aromatic plane of 5-CQA resulted in 1:1 complexes [43].…”

Section: Selection Of Binding Unit To Form Specific Interactions With...mentioning

confidence: 99%

Imidazole-Based Monomer as Functional Unit for the Specific Detection of Paraxanthine in Aqueous Environments

2022

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In the context of personalized medicine, the paraxanthine-to-caffeine ratio is an accepted standard for the optimization of the dose-response effect of many pharmaceuticals in individual patients. There is a strong drive towards the development of cheaper and portable devices for the detection of biomarkers, including paraxanthine and caffeine, which requires materials with high binding efficiency and specificity. We designed a recognition unit specific for paraxanthine which can discriminate molecules with small structural differences and can be used to increase the sensitivity of sensors. A number of functional units were screened by nuclear magnetic resonance for their ability to form specific binding interactions with paraxanthine in water and negligible interactions with its structural analogue caffeine. Imidazole was identified as the unit showing the most promising results and its two polymerizable derivatives were evaluated by isothermal titration calorimetry to identify the best monomer. The data suggested that 4-vinylimidazole was the most promising unit forming specific and strong binding interaction with paraxanthine. The calorimetry experiments allowed also the determination of the thermodynamic parameters of all interactions and the association constant values. Optimization of polymerization protocols in water, achieving high monomer conversions and chemical yields, demonstrate the suitability of the selected functional monomer for polymer preparations, targeting the detection of paraxanthine in aqueous environments.

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Section: Selection Of Binding Unit To Form Specific Interactions With...mentioning

confidence: 99%

Imidazole-Based Monomer as Functional Unit for the Specific Detection of Paraxanthine in Aqueous Environments

2022

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“…The studies also explore the potential health benefits and therapeutic effects of natural antioxidants, such as their antioxidant, anti-inflammatory, and immunomodulatory properties. Interestingly, the ability of rice grains to resist starch decomposition by interacting with a phenolic antioxidant, chlorogenic acid, was found in a study collected in this Special Issue [6].…”

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confidence: 96%

Editorial Overview of the Special Issue “Biological Activity Evaluation Process of Natural Antioxidants”

Hsieh

Lin

2023

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Enhancement of Digestion Resistance and Glycemic Control of Corn Starch through Conjugation with Gallic Acid and Quercetin Using the Free Radical Grafting Method

Sun

Chan

et al. 2022

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The objective of this study was to synthesize different polyphenol–corn starch complexes including gallic acid–starch and quercetin–starch by conjugating corn starch with gallic acid and quercetin using the free radical grafting method. This process was effective in enhancing conjugations of starch molecules with gallic acid and quercetin (5.20 and 5.83 mg GAE/g, respectively) and imparted promising antioxidant capacity to the phenolic–starch complexes. Significant interactions between these phenolic compounds and corn starch molecules were revealed with an ultraperformance liquid chromatography electrospray ionization Q-time-of-flight mass spectrometry assay. It was revealed that significantly higher levels of resistant starch in the above gallic–starch and quercetin–starch complex samples (11.6 and 15.3 g/100 g, respectively) together with an obvious reduction in glycemic response (7.9% and 11.8%, respectively) observed over the control. Complex samples functionalized with gallic acid and quercetin have exerted modified physicochemical properties, particularly reduction in swelling ability (58.7–60.1%), breakdown viscosity (62.5–67.8%), and setback viscosity (37.7–44.5%). In sum, free radical grafting treatment could be a promising method for imparting corn starch with enhanced resistance to enzyme digestion along with changes in pasting properties for specific food applications.

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Enhanced Resistance to Amylolysis in Rice Kernels through Interaction with Chlorogenic Acid

Cited by 3 publications

References 38 publications

Imidazole-Based Monomer as Functional Unit for the Specific Detection of Paraxanthine in Aqueous Environments

Imidazole-Based Monomer as Functional Unit for the Specific Detection of Paraxanthine in Aqueous Environments

Editorial Overview of the Special Issue “Biological Activity Evaluation Process of Natural Antioxidants”

Enhancement of Digestion Resistance and Glycemic Control of Corn Starch through Conjugation with Gallic Acid and Quercetin Using the Free Radical Grafting Method

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