Results 11 to 20 of about 3,288 (250)

Hydrothermal Carbonization of Spent Coffee Grounds [PDF]

open access: yesApplied Sciences, 2021
With increasing coffee production and consumption, the amount of coffee by-product is also increasing. Therefore, there is growing worldwide interest in using these by-products as a renewable energy source.
Hyeok-Jin Kim, Sea-Cheon Oh
doaj   +2 more sources

Spent Coffee Grounds Extract for Active Packaging Production

open access: yesChemical Engineering Transactions, 2021
The interest in searching an alternative to the condition of "waste" for spent coffee is continuously growing in the scientific community. Indeed, the high content of polyphenols, caffeine, and tannins in this residue can potentially lead to pollution ...
Margherita Pettinato   +3 more
doaj   +2 more sources

On the Spent Coffee Grounds Biogas Production

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2016
Due to the strict legislation currently in use for landfilling, anaerobic digestion has a strong potential as an alternative treatment for biodegradable waste.
Tomáš Vítěz   +3 more
doaj   +2 more sources

Thermo-Catalytic Reforming of spent coffee grounds [PDF]

open access: yesBioresources and Bioprocessing, 2019
Conversion of spent coffee grounds through the Thermo-Catalytic Reforming system (TCR®) is evaluated in this study. While, the TCR® is a technology that has been developed by Fraunhofer UMSICHT, which combines an intermediate pyrolysis and a catalytic ...
Mohamed Elmously   +4 more
doaj   +2 more sources

Evaluation of Ozone Removal by Spent Coffee Grounds [PDF]

open access: yesScientific Reports, 2020
AbstractActivated carbon is the most known material used to adsorb ozone. Activating carbonaceous materials by ozonation is commonly used to produce activated carbon, however, requiring sophisticated skills and professional equipment. This paper presents a reversed idea: to adsorb ozone using an unactivated carbonaceous material, coffee.
Hsieh, P.-F., Wen, T.-Y.
openaire   +3 more sources

Antifungal Activity of Spent Coffee Ground Extracts

open access: yesMicroorganisms, 2023
Coffee is one of the most popular and consumed products in the world, generating tons of solid waste known as spent coffee grounds (SCG), containing several bioactive compounds. Here, the antifungal activity of ethanolic SCG extract from caffeinated and decaffeinated coffee capsules was evaluated against yeasts and filamentous fungi. These extracts had
Daniela Calheiros   +6 more
openaire   +5 more sources

Chemical Compounds of Coffee Ground and Spent Coffee Ground for Pharmaceutical Products

open access: yesPharmaceutical and Biomedical Sciences Journal (PBSJ), 2021
Coffee is one of the most valuable primary products in world trade. Coffee production generates a lot of coffee waste such as spent coffee grounds. The chemical components of the coffee ground and spent coffee ground were caffeine and chlorogenic acid. These components were important to apply in pharmaceuticals.
Anton Restu Prihadi, Askal Maimulyanti
openaire   +2 more sources

Determination of Caffeic Acid in Ethanolic Extract of Spent Coffee Grounds by High-Performance Liquid Chromatography with UV Detection

open access: yesIndonesian Journal of Chemistry, 2021
We developed a method for determining the caffeic acid in spent coffee grounds. The spent coffee ground solution was prepared by blending 3 g spent coffee grounds with 60 mL ethanol/water (40/60 v/v) for 2 h on a hot plate magnetic stirrer (60 °C, 350 ...
Michael Raharja Gani   +1 more
doaj   +1 more source

Coffee and Yeasts: From Flavor to Biotechnology

open access: yesFermentation, 2021
Coffee is one of the most consumed beverages in the world, and its popularity has prompted the necessity to constantly increase the variety and improve the characteristics of coffee as a general commodity.
Lavinia Liliana Ruta   +1 more
doaj   +1 more source

Valorization of Spent Coffee Grounds as a Natural Source of Bioactive Compounds for Several Industrial Applications—A Volatilomic Approach

open access: yesFoods, 2022
Coffee is one of the most popular beverages worldwide, whose production and consumption result in large amounts of waste, namely spent coffee grounds, constituting an important source of compounds for several industrial applications. This work focused on
Carolina Andrade   +2 more
doaj   +1 more source

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