Comparative Analysis of Polyphenolic Acids from Various Zea mays Parts in Ultrasound-Assisted Extraction DOI Creative Commons
David Řepka, Lubomir Lapčí­k

Foods, Journal Year: 2025, Volume and Issue: 14(9), P. 1458 - 1458

Published: April 23, 2025

In this study, we compared different parameters in the ultrasound-assisted extraction of polyphenolic acids from seven parts Zea mays (kernels, leaves, stems, corn silks, roots, whole plant, and fermented plant) to identify its richest natural sources. Additionally, correlation between polyphenol yield was investigated. The performed using ultrasound at varying powers (480 or 240 W) frequencies (80 37 kHz). Total phenolic content (TPC) determined Folin–Ciocalteu assay, while radical scavenging activity (RSA) assessed via DPPH assay. TPC values ranged 0.69 ± 0.00008 mg GAE/g 4.07 0.0004 corn. RSA analysis revealed highest silk (80.06% 1.01) lowest kernels (2.77% 0.90). High-performance liquid chromatography identified up 22 per sample, with 5 most abundant being chlorogenic acid, protocatechuic acid ethyl ester, quercetin, sinapic trans-cinnamic acid. study found small effects power frequency on efficiency. This suggests a practical advantage for industrial-scale applications, as W instead 480 under same conditions can reduce energy consumption without compromising yield.

Language: Английский

Role of Oxidative Stress in Blood–Brain Barrier Disruption and Neurodegenerative Diseases DOI Creative Commons
Sehwan Kim, Un Ju Jung, Sang Ryong Kim

et al.

Antioxidants, Journal Year: 2024, Volume and Issue: 13(12), P. 1462 - 1462

Published: Nov. 28, 2024

Upregulation of reactive oxygen species (ROS) levels is a principal feature observed in the brains neurodegenerative diseases such as Parkinson’s disease (PD) and Alzheimer’s (AD). In these diseases, oxidative stress can disrupt blood–brain barrier (BBB). This disruption allows neurotoxic plasma components, blood cells, pathogens to enter brain, leading increased ROS production, mitochondrial dysfunction, inflammation. Collectively, factors result protein modification, lipid peroxidation, DNA damage, and, ultimately, neural cell damage. this review article, we present mechanisms by which damage leads BBB breakdown brain diseases. Additionally, summarize potential therapeutic approaches aimed at reducing that contributes

Language: Английский

Citations

10
Highly Sensitive Detection of Glucose in the Presence of Serum Based on Signal Amplification of Persistent Luminescence Nanoparticles Functionalized by Glucose Oxidase DOI Creative Commons
Zied Ferjaoui, Celina Matuszewska, Jianhua Liu

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: 13(4)

Published: Jan. 17, 2025

Abstract A new method is presented for the in vitro detection of glucose using oxidase (GOx) covalently linked to persistent luminescent nanoparticles (PLNPs). This ensures both sensitive and specific by exploiting enhanced luminescence PLNPs presence H 2 O , generated an enzymatic reaction. To this end, three different composed ZnGa 4 :Cr 3+ (ZGO) are prepared hydrothermal synthesis at 120 °C 6 h (ZGO1), 12 (ZGO2), 24 (ZGO3), followed a calcination 500 °C, resulting with average hydrodynamic diameter 100 nm ± 5 after grinding centrifugation. These efficiently functionalized GOx, via PEG linker. Following production reaction between GOx bound ZGO surface present 100‐fold diluted serum, significant increase signal observed. phenomenon most pronounced ZGO2, which limit 0.01 µ m range from 0.05 1 obtained. results demonstrate innovative potential technique monitoring, opening up avenues real‐time monitoring effective management diabetes.

Language: Английский

Citations

1
Secondary metabolite profile and free-radical scavenging activity of ethyl acetate extract of bidara fruit and leaves (ziziphus mauritiana) DOI Open Access

Taufan Hari Sugara,

Yuli Fitriana,

I Koswara

et al.

IOP Conference Series Earth and Environmental Science, Journal Year: 2025, Volume and Issue: 1441(1), P. 012013 - 012013

Published: Jan. 1, 2025

Abstract Ziziphus Mauritiana has high economic value but is still considered a nuisance plant for most people. Not only are the fruit and some parts of Z. rich in nutrients, they also contain bioactive compounds that can benefit health. This study aimed to provide information on profile secondary metabolites free-radical scavenging activity leaf extracts. The consisted four stages: sample powder preparation, extraction process, phytochemical screening, assay by DPPH (2,2-Diphenyl-1-picrylhdrazyl) method. yield ethyl acetate extract leaves obtained from maceration process was 9.86 g (3.28%) 12.92 (4.30%), respectively. Phytochemical screening showed contained flavonoids, tannins, terpenoids, steroids. Both extracts strong category (IC 50 = 50-100 ppm). better 66.09 ppm) than 73.39 results which act as free radical scavengers be used alternative food sources with potential antioxidant properties.

Language: Английский

Citations

0
Comparative Analysis of Polyphenolic Acids from Various Zea mays Parts in Ultrasound-Assisted Extraction DOI Creative Commons
David Řepka, Lubomir Lapčí­k

Foods, Journal Year: 2025, Volume and Issue: 14(9), P. 1458 - 1458

Published: April 23, 2025

In this study, we compared different parameters in the ultrasound-assisted extraction of polyphenolic acids from seven parts Zea mays (kernels, leaves, stems, corn silks, roots, whole plant, and fermented plant) to identify its richest natural sources. Additionally, correlation between polyphenol yield was investigated. The performed using ultrasound at varying powers (480 or 240 W) frequencies (80 37 kHz). Total phenolic content (TPC) determined Folin–Ciocalteu assay, while radical scavenging activity (RSA) assessed via DPPH assay. TPC values ranged 0.69 ± 0.00008 mg GAE/g 4.07 0.0004 corn. RSA analysis revealed highest silk (80.06% 1.01) lowest kernels (2.77% 0.90). High-performance liquid chromatography identified up 22 per sample, with 5 most abundant being chlorogenic acid, protocatechuic acid ethyl ester, quercetin, sinapic trans-cinnamic acid. study found small effects power frequency on efficiency. This suggests a practical advantage for industrial-scale applications, as W instead 480 under same conditions can reduce energy consumption without compromising yield.

Language: Английский

Citations

0