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Chemical insight into pros and cons of coffees from different regions.
Sci Rep
January 2025
Faculty of Chemistry, Department of Analytical Chemistry, Gdańsk University of Technology, Gabriela Narutowicza 11/12 Str., 80-233, Gdańsk, Poland.
The main aim of this work was to study the chemical composition of eighteen ground coffees from different countries and continents with regard to the content of hazardous substances as radioactive elements (K, Ra, Ra, U, U and Cs), metals, including heavy metals, aluminum and some microelements (V, Cr, Mn, Fe, Co, Ni, Cu, Zn) as well as substances that have a positive effect on human health and well-being (polyphenols, proteins, fats and caffeine). The tests were carried out before and after the brewing process using the following techniques: gamma and beta spectrometry, a microwave-induced plasma optical emission spectrometer (MIP-OES), gravimetric method, UV-Vis spectrophotometry as well as thin-layer chromatography. The leaching percentage of certain elements/compounds in coffee infusions was also measured.
View Article and Find Full Text PDFImpact of bottom ash addition on Pleurotus ostreatus cultivation on coffee ground substrate.
Sci Rep
December 2024
Faculty of Mechanical Engineering, Opole University of Technology, Ul. Prószkowska 76, 45-758, Opole, Poland.
The study aimed to explore the potential use of coal-fired power plant bottom ashes in Pleurotus ostreatus cultivation using spent coffee grounds. The study analyzed five compositions of growth substrate for mushrooms: pure coffee grounds (I) as a control sample; coffee grounds substrate with the addition of 1% (II); 5% (III); 10% (IV) bottom ash; and bottom ash alone (V). The study revealed that compared to the control sample (I), the addition of 1% bottom ash (II) did not affect the time of mycelium growth but slowed fruiting body growth by 4 days.
View Article and Find Full Text PDFAn umbrella review of meta-analysis to understand the effect of coffee consumption and the relationship between stroke, cardiovascular heart disease, and dementia among its global users.
J Family Med Prim Care
November 2024
Department of Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Coffee has long been popular worldwide. The rise in lifestyle-related diseases such as cardiovascular disease, diabetes, stroke, dementia, and others has motivated coffee usage and illness prevalence studies. Some studies show coffee consumers are at risk for such diseases, whereas others show its active components protect them.
View Article and Find Full Text PDFVisual and Anatomic Outcomes From Ultracomplex Retinal Detachment Repair in a Large County Hospital.
Int Ophthalmol Clin
January 2025
Department of Ophthalmology, Baylor College of Medicine-Cullen Eye Institute, Houston, TX.
Purpose: To evaluate outcomes of ultracomplex retinal detachment (UCRD) repairs performed at a large county hospital.
Materials And Methods: Retrospective chart review of patients who underwent a UCRD repair, defined as a funnel retinal detachment (RD), RD associated with ocular trauma, or RD requiring retinectomy, 5000 centistoke silicone oil or perfluorocarbon heavy liquid (PFO). The outcomes examined were visual acuity (VA), anatomic success, and phthisis development.
An Electrochemical Sensor for Detection of Lead (II) Ions Using Biochar of Spent Coffee Grounds Modified by TiO Nanoparticles.
Molecules
December 2024
International Union Laboratory of China and Malaysia for Quality Monitoring and Evaluation of Agricultural Products in Yunnan, School of Biology and Chemistry, Pu'er University, Pu'er 665000, China.
Toxic heavy metal ions, such as lead ions, significantly threaten human health and the environment. This work introduces a novel method for the simple and sensitive detection of lead ions based on biochar-loaded titanium dioxide nanoparticles (BC@TiONPs) nanocomposites. Eco-friendly biochar samples were prepared from spent coffee grounds (500 °C, 1 h) that were chemically activated with TiO nanoparticles (150 °C, 24 h) to improve their conductivity.
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