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Enzymatic Hydrolysis of Spent Coffee Ground
Applied Biochemistry and Biotechnology, 2013Spent coffee ground (SCG) is the main residue generated during the production of instant coffee by thermal water extraction from roasted coffee beans. This waste is composed mainly of polysaccharides such as cellulose and galactomannans that are not solubilised during the extraction process, thus remaining as unextractable, insoluble solids.
T, Jooste +4 more
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Recovery of Natural Antioxidants from Spent Coffee Grounds
Journal of Agricultural and Food Chemistry, 2013Spent coffee grounds (SCG) were extracted with an environmentally friendly procedure and analyzed to evaluate the recovery of relevant natural antioxidants for use as nutritional supplements, foods, or cosmetic additives. SCG were characterized in terms of their total phenolic content by the Folin-Ciocalteu procedure and antioxidant activity by the ...
Petrucci, R. +4 more
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Bio-refinery approach for spent coffee grounds valorization
Bioresource Technology, 2018Although normally seen as a problem, current policies and strategic plans concur that if adequately managed, waste can be a source of the most interesting and valuable products, among which metals, oils and fats, lignin, cellulose and hemicelluloses, tannins, antioxidants, caffeine, polyphenols, pigments, flavonoids, through recycling, compound ...
Teresa M. Mata +2 more
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Mechanical characterization of spent- coffee-grounds briquettes
Revista de Energías Renovables, 2022This article provides an overview of the manufacture of briquettes by mixing spent coffee grounds (SCG) and recycled newsprint (RNP), with some established compositions. Hollow cylindrical briquettes were used as samples for mechanical characterization for the research project "Characterization of type 2 biomass briquettes as solid fuel alternative to ...
Oscar Chamarraví-Guerra +1 more
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Spent coffee ground torrefaction for waste remediation and valorization
Environmental Pollution, 2023Spent coffee grounds (SCGs) are a noticeable waste that may cause environmental pollution problems if not treated appropriately. Torrefaction is a promising low-temperature carbonization technique to achieve waste remediation, recovery, and circular bioeconomy efficiently.
Kuan-Ting Lee +4 more
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Journal of Agricultural and Food Chemistry, 2019
Spent coffee grounds (SCG) are the most abundant coffee byproduct and are generally discarded as waste. The horticultural use of SCG and SCG compost (SCGC) has become popular due to a growing interest in environmentally friendly measures for waste disposal.
Byoung Ha An +6 more
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Spent coffee grounds (SCG) are the most abundant coffee byproduct and are generally discarded as waste. The horticultural use of SCG and SCG compost (SCGC) has become popular due to a growing interest in environmentally friendly measures for waste disposal.
Byoung Ha An +6 more
openaire +2 more sources
Green nanocomposites filled with spent coffee grounds
Journal of Applied Polymer Science, 2015ABSTRACTThis study evaluated physical properties of the nanocomposites reinforced by used coffee grounds. Coffee grounds were ball‐milled and filtered in an effort to secure nanoparticles for the fabrication of polyvinyl alcohol (PVA)/coffee nanocomposites.
Hyun Kyung Lee +3 more
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Spent coffee grounds: A potential commercial source of phytosterols
Food Chemistry, 2020This study sought to determine the content of phytosterols (PS) in spent coffee grounds (SCG) to assess a novel industrial application of this coffee by-product as a commercial source of PS. Four PS were extracted and analyzed from 14 SCG samples from 12 countries.
Franks kamgang Nzekoue +9 more
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Anaerobic digestion of spent coffee grounds
Biomass, 1983Anaerobic digestion of spent coffee grounds (3 kg m−3 day−1) with efficient solids recycling achieved 99% conversion of solids and gas yields of 0·54 m3 kg−1 (56–63% methane). Gas production declined steadily over the test period and after 80 days had fallen from an initial value of 1·70 litre litre−1 day−1 to 0·45 or 0·33 litre litre−1 day−1, with or ...
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Valorization of spent coffee grounds: A review
Food and Bioproducts Processing, 2018Abstract Spent coffee grounds (SCGs) arise as waste products through the production of instant coffee and coffee brewing. This work reviews the composition of SCGs, the methods used for the isolation of individual compounds present in SCGs, the ways of utilizing SCGs presented in the literature so far, including use of SCGs’ bioactive compounds ...
Kovalcik, Adriana +2 more
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