Publications by authors named "Jaqueline Pozzada Dos Santos"

Article Synopsis
  • The study examined using biochar made from winemaking waste to remove nickel ions from industrial effluents in a fixed-bed column setup.
  • The optimal conditions found for maximum nickel adsorption included a column height of 7 cm, an initial nickel concentration of 1.5 mg/L, and a flow rate of 18 mL/min, achieving a nickel removal rate of 92.71%.
  • The results supported the effectiveness of the Yoon-Nelson and BDST models for analyzing the adsorption process, highlighting biochar's potential as an eco-friendly solution for treating metal-contaminated wastewater.
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This study aims to evaluate the effects of in vitro digestion of rice and common bean blends on phenolics content and profile. Black and carioca beans were used as common bean sources. Blends consisted of 25:75, 50:50, and 75:25 polished rice:beans (w/w).

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Three cooking temperatures (72, 80, and 88 °C) were applied to two rice genotypes (Puitá Inta CL and INOV CL) for preparing quick cooking brown rice. Samples were analyzed for cooking time, color, scanning electron microscopy (SEM), damaged grains, amylose, protein content and extractability, differential scanning calorimetry (DSC), X-ray diffraction (XRD), sensory properties, and in vitro digestion. Cooking time was reduced from 23.

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The objective of this study was to immobilize α-amylase in ultrafine polyvinyl alcohol (PVA) fibers by electrolysis and to evaluate its stability at different temperatures and pHs using various starch substrates such as corn starch and germinated and ungerminated wheat starches. The α-amylase-loaded ultrafine fibers were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and loadability and enzymatic activity evaluations. Incorporation of the enzyme resulted in a slight change in fiber morphology; the fibers became flatter and thicker with increasing enzyme concentration.

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