Results 211 to 220 of about 220,863 (272)

Pyrolysis of Coffee Husks and Parchment

Solid Fuel Chemistry, 2021
The pyrolysis of coffee husks and coffee parchment at 350 and 500°C was considered as the first stage of gasification by the two-stage thermal conversion of biomass into synthesis gas. The yields and compositions of pyrolysis products at the selected temperatures were determined.
V. M. Zaichenko, M. I. Knyazeva, A. Yu. Krylova, A. B. Kulikov, Yu. M. Faleeva   +4 more
openaire   +2 more sources

Characterization and bioactivities of coffee husks extract encapsulated with polyvinylpyrrolidone

Food Research International, 2023
Coffee processing generates large amounts of residues of which a portion still has bioactive properties due to their richness in phenolic compounds. This study aimed to obtain a coffee husks extract (CHE) and to encapsulate it (ECHE) with polyvinylpyrrolidone using a one-step procedure of solid dispersion. The extraction and encapsulation yields were 9.
Anielle de Oliveira, Thaysa F.M. Moreira, Beatriz Paes Silva, Grazielle Oliveira, Valéria Maria C. Teixeira, Lycio S. Watanabe, Suzana Lucy Nixdorf, Luana Eloísa Leal, Luiz Gustavo A. Pessoa, Flavio Augusto V. Seixas, Odinei H. Gonçalves, Ana Paula Peron, Anacharis B. Sá-Nakanishi, Fernanda V. Leimann, Adelar Bracht, Lívia Bracht, Jurandir F. Comar   +16 more
openaire   +3 more sources

Unveiling the Bioactivities and Bioaccessibility of Phenolic Compounds from Organic Coffee Husks Using an In Vitro Digestion Model.

The Journal of the Science of Food and Agriculture, 2023
BACKGROUND The large amounts of by-products generated in the coffee industry are a problem for a sustainable agro-industry. Studies related to the biological potential of organic coffee husks are still limited. The aim of this work was to investigate the
Thaianaly Leite Abreu, M. Estévez, L. M. de CARVALHO, Lorena Lucena de Medeiros, Valquíria Cardoso da Silva Pereira, B. Salu, M. Oliva, M. Madruga, Taliana Kênia Alencar Bezerra   +8 more
semanticscholar   +1 more source

Combustion of coffee husks

Renewable Energy, 2001
Abstract Combustion mechanisms of two types of coffee husks have been studied using single particle combustion techniques as well as combustion in a pilot-scale fluidised bed facility (FBC), 150 mm in diameter and 9 m high. Through measurements of weight-loss and particle temperatures, the processes of drying, devolatilisation and combustion of ...
Saenger, M., Hartge, E.U., Werther, J., Ogada, T., Siagi, Z.   +4 more
openaire   +2 more sources

Feasibility of ethanol production from coffee husks

Journal of Biotechnology, 2008
The objective of this work was to evaluate the feasibility of ethanol production by fermentation of coffee husks by Saccharomyces cerevisiae. Batch fermentation studies were performed employing whole and ground coffee husks, and aqueous extract from ground coffee husks.
B M, Gouvea, C, Torres, A S, Franca, L S, Oliveira, E S, Oliveira   +4 more
openaire   +2 more sources

Adsorption of toxic Congo red dye from aqueous solution using untreated coffee husks: kinetics, equilibrium, thermodynamics and desorption study

International Journal of Environmental Analytical Chemistry, 2021
In this study, the potential of using dried coffee husk adsorbent is systematically evaluated by conducting batch studies involving various process parameters, such as initial pH, dye concentration, adsorbent dosage, particle size, electrolytes, and ...
P. Vairavel, Nakul Rampal, Gautham P. Jeppu   +2 more
semanticscholar   +1 more source

Oxidative stability of chicken burgers using organic coffee husk extract

Food Chemistry, 2022
The antioxidant capacity of organic coffee husk extract (Coffee arabica L.) added to chicken burgers was evaluated. Two formulations were prepared: with addition of the extract (100 and 200 ppm CAE/kg), in addition to control formulations without the addition of antioxidant, and with the addition of synthetic antioxidant.
Antonia Dayane Jenyffer, de Farias Marques, Jerffeson, de Lima Tavares, Leila Moreira, de Carvalho, Thaianaly, Leite Abreu, Deyse, Alves Pereira, Miriane, Moreira Fernandes Santos, Marta, Suely Madruga, Lorena Lucena, de Medeiros, Taliana, Kênia Alencar Bezerra   +8 more
openaire   +2 more sources

Steam explosion pretreatment improved the biomethanization of coffee husks

Bioresource Technology, 2017
This study evaluated the potential of energy generation using a combined heat and power co-generation system (CHP) from biogas produced during the anaerobic digestion of coffee husks (CH) pretreated with steam explosion. Pretreatment conditions assessed were time (1, 5, 15 and 60min) and temperature (120, 180 and 210°C).
Bruno Eduardo Lobo, Baêta, Paulo Henrique de Miranda, Cordeiro, Fabiana, Passos, Leandro Vinícius Alves, Gurgel, Sérgio Francisco, de Aquino, Fernando, Fdz-Polanco   +5 more
openaire   +2 more sources