![](https://www.mnext.nl/app/uploads/2020/01/depositphotos_63934323-stock-photo-coffee-beans-scattered-on-burlap.jpg)
Coffee is one of the most consumed beverages in the world and the second largest traded commodity after petroleum. As a result of this large market, the reuse of coffee industry residues is of great importance from an environmental and economic point of view. During the roasting of coffee beans, large amounts of coffee silver skin (CS) or chaff, as it is also called, are formed as a by-product.
The CS can be used for compost. It is light and airy and has a relatively high nitrogen content. In urban areas, however, the need for compost material is limited and since in many cities, such as Amsterdam, compostable waste still cannot be separated, most of the CS is currently being disposed of as waste. Options for effective and economically viable exploitation of CS need to be developed. The relatively small scale of production in micro-branding companies poses a specific challenge. While the silver skin significantly increases the company’s waste disposal costs, the volumes are not large enough to justify separate collection for low-value use as composting. The intended use must be either in the store or nearby (e.g. baking) or of sufficient quality to justify the costs associated with logistics.
Economically achieveable
The options for effective and economically viable utilization of coffee silver skin need to be developed. The relatively small scale of production in micro-branding companies poses a specific challenge. While the silver skin significantly increases the company’s waste disposal costs, the volumes are not large enough to justify separate collection for low-value use as composting. The intended use must be either in the store or nearby (e.g. baking) or of sufficient quality to justify the costs associated with logistics.
The aim of this project is to provide an overview of the biomass coffee siver skin, its chemical composition and its biological activity to identify viable high performance material applications. The results of this research are used to identify the market opportunities of products based on the high quality components in coffee silver skin. Examples of this can be found in cosmetics and pharmaceuticals.
This project is supported by TKI BBE
![](https://www.mnext.nl/app/uploads/2024/07/Maria-Hugo-en-Anke-bedrijventerrein-Steenakker_50-608x342.png)
Lokaal opwekken, lokaal gebruiken
![](https://www.mnext.nl/app/uploads/2024/06/Onderstation-binnentuin-Prorail-608x342.png)
Deze gaan we nog vaak terugzien
![](https://www.mnext.nl/app/uploads/2024/06/thumbnail_Saar-SamplesPlasticiet-042023-3-608x342.jpg)
Recycling Water Bottles into Circular Sports Products
![](https://www.mnext.nl/app/uploads/2024/06/shutterstock_246298015-608x342.jpg)
FermiChem
![](https://www.mnext.nl/app/uploads/2024/01/columbus-600x342.png)
Protein of Columbus
![](https://www.mnext.nl/app/uploads/2023/10/Energiek-Onderwijs-vierkant-onder-608x342.png)
BIO-CAPPP
![](https://www.mnext.nl/app/uploads/2023/10/Hoofdafbeelding-Energiek-Onderwijs-608x342.jpg)
Energy Education
![](https://www.mnext.nl/app/uploads/2023/07/BIO-CAPPP-MNEXT-608x342.jpg)
BIO-CAPPP
![](https://www.mnext.nl/app/uploads/2023/03/zonnepanelen-bedrijventerrein-608x342.jpg)
GESCHIKT: energy transition on business parks
![](https://www.mnext.nl/app/uploads/2023/02/shutterstock_77890051_greenhome-608x342.jpg)
Rapid Renewable Materials: the next step in sustainable construction.
![](https://www.mnext.nl/app/uploads/2023/02/board-608x342.jpg)
Mycelium on Board
![](https://www.mnext.nl/app/uploads/2023/01/MicrosoftTeams-image-2-608x342.jpg)
From orange waste to a green future
![](https://www.mnext.nl/app/uploads/2023/01/MicrosoftTeams-image-3-608x342.jpg)
Blueprint of fungal genomes
![](https://www.mnext.nl/app/uploads/2023/01/mapbox-ZT5v0puBjZI-unsplash-608x342.jpg)
BioGov.net
![](https://www.mnext.nl/app/uploads/2022/12/myc-600x342.png)
Water-resistant mycelium composites
![](https://www.mnext.nl/app/uploads/2022/10/wil-stewart-K_TbABnVzHo-unsplash-608x342.jpg)
Sustainable Particle Board
![](https://www.mnext.nl/app/uploads/2022/09/P1200084-608x342.jpg)
Circular Emergency Shelters
![](https://www.mnext.nl/app/uploads/2022/09/banner-1-e1662634826510-608x342.jpg)
FACET
![Totally nuts](https://www.mnext.nl/app/uploads/2022/06/shutterstock_1806155848-608x342.jpg)
Totally Nuts: Circular Biobased Thermosets from Cashew Nutshells
![](https://www.mnext.nl/app/uploads/2022/07/AvansBiobased-041Def-608x342.jpg)
Biodegradation Coatings Stahl
![](https://www.mnext.nl/app/uploads/2022/06/Green-Hub-12-480x342.png)
Green Hub: Information hub value chains green residual flows
![](https://www.mnext.nl/app/uploads/2022/06/chuttersnap-IfmqOuOkaOA-unsplash-608x342.jpg)
Acceleration of nature-inclusive area development
![](https://www.mnext.nl/app/uploads/2022/06/kristin-snippe-shMPfpquMtQ-unsplash-608x342.jpg)
Reflow
![](https://www.mnext.nl/app/uploads/2022/06/Mycelium-Growing-Pavilion_J-Knudsen20191017_49-1-1024x754-1-608x342.jpg)
Biobased Insulation – Lifespan Determination (BILD)
![](https://www.mnext.nl/app/uploads/2022/06/boot-608x342.png)
Setting up and performing biodiesel trials in a coaster ship
![](https://www.mnext.nl/app/uploads/2022/05/Mythic-mycelium-608x342.jpg)
Mythic
![](https://www.mnext.nl/app/uploads/2022/03/PyroCHEM-infographic-1200x675px_EN-608x342.jpg)
PyroCHEM: Waste2Chem Innovation Cluster
![](https://www.mnext.nl/app/uploads/2022/03/Project-Logo-437x342.jpg)
Membrane Technologies
![](https://www.mnext.nl/app/uploads/2022/02/DC8B6216-scaled-1-608x342.jpg)
Flestic
![](https://www.mnext.nl/app/uploads/2021/12/AvansBiobased-248Def-608x342.jpg)
Direct extrusion of PHA-rich biomass
![](https://www.mnext.nl/app/uploads/2021/12/thumbnail_ivan-bandura-6wSevhW1Dzc-unsplash-608x342.jpg)
Production of bioplastics from residual streams (WoW! Capitalisation)
![](https://www.mnext.nl/app/uploads/2021/11/foto-agrifood.jpg)
Powering Agrifood
![](https://www.mnext.nl/app/uploads/2020/05/vlas-608x342.png)
Smart Circular Bridge
![](https://www.mnext.nl/app/uploads/2021/05/thom-masat-8kLFdQh6scA-unsplash-1-608x342.jpg)
Fungal Colourants
![](https://www.mnext.nl/app/uploads/2021/05/Biobouwers-project-afbeelding-lowres-608x342.jpg)
Learning Network Biobuilders
![Orange in the Sea](https://www.mnext.nl/app/uploads/2021/05/ZeewierNoordzeeSmall_DSC3073-608x342.jpg)
Orange in the Sea
![](https://www.mnext.nl/app/uploads/2021/01/aahminozuren-608x342.jpg)
Amino Acids!
![](https://www.mnext.nl/app/uploads/2019/05/building-on-mycelium-800x600-608x342.png)
Building on Mycelium
![](https://www.mnext.nl/app/uploads/2021/03/eggbank-ohNxxapID_k-unsplash-608x342.jpg)
Follow-up S4G
![](https://www.mnext.nl/app/uploads/2021/03/shutterstock_167942129_cottoncoloured-scaled-e1616772477341-608x342.jpg)
Colour Application Centre
![](https://www.mnext.nl/app/uploads/2021/02/MicrosoftTeams-image-1-scaled-e1612188434582-608x342.jpg)
Making disposables disposable
![](https://www.mnext.nl/app/uploads/2021/02/boot.jpg)
Making shipping more sustainable (Russia – Benelux)
![](https://www.mnext.nl/app/uploads/2021/01/zircular-608x342.png)
Zircular Seaweed food
![](https://www.mnext.nl/app/uploads/2021/01/organic-onions-S8A6MPC-608x342.jpg)
Extraction of pectins from onion skins
![](https://www.mnext.nl/app/uploads/2021/01/varieties-of-undergrowth-mushrooms-7CAJWLM-608x342.jpg)
Growing Leather
![](https://www.mnext.nl/app/uploads/2021/01/shutterstock_69930940_biofuelwood-608x342.jpg)
Learning Community Renewable fuels
![](https://www.mnext.nl/app/uploads/2021/01/biopolymeren-608x342.jpg)
PHA accumulation capacity of Sewage Treatment Plant
![](https://www.mnext.nl/app/uploads/2020/12/Reduce-reuse-recycle-608x342.jpg)
NACO – Zero Waste Collective Oosterhout
![](https://www.mnext.nl/app/uploads/2020/12/shutterstock_162956954_greenhouse-608x342.jpg)
Bio Iso (RAAK MKB)
![](https://www.mnext.nl/app/uploads/2020/10/JORT_Afbeelding1-e1603976058349-608x342.jpg)
Design with RRM (rapidly renewable materials)
![](https://www.mnext.nl/app/uploads/2020/10/i-detail-608x342.jpg)
Resin biodegradation
![](https://www.mnext.nl/app/uploads/2020/10/bioploymerenCraze-608x342.jpg)
Biobased gadgets
![](https://www.mnext.nl/app/uploads/2020/10/Schuim1-608x342.jpg)
Biobased foam
![](https://www.mnext.nl/app/uploads/2020/10/IMG_5743-608x342.jpg)
Biobased flocculants for water purification
![](https://www.mnext.nl/app/uploads/2020/10/Vibers-1-608x342.jpg)
Viberscrete – biobased concrete
![](https://www.mnext.nl/app/uploads/2019/09/mooc-biobased-energy-banner-608x342.png)
Innovation Traineeships
![](https://www.mnext.nl/app/uploads/2020/09/b535c42e-182e-4a7c-944f-e4dec2e67243-608x342.jpg)
Building light
![](https://www.mnext.nl/app/uploads/2020/08/Aardbeientray-9-gaats-zwaar-P1-MR-608x342.jpeg)
BioADD
![](https://www.mnext.nl/app/uploads/2020/07/CurCol-banner-600x800-1-608x342.png)
CurCol
![](https://www.mnext.nl/app/uploads/2020/06/you-x-ventures-0K7GgiA8lVE-unsplash-608x342.jpg)
Learning community
![](https://www.mnext.nl/app/uploads/2020/05/Schermafbeelding-2020-05-22-om-10.15.18-608x342.png)
Professors’ platform Biobased Economy
![](https://www.mnext.nl/app/uploads/2020/05/render_partners-608x342.png)
Porter’s lodge Delfland
![](https://www.mnext.nl/app/uploads/2020/05/vlas-608x342.png)
Smart Circular Bridge
![](https://www.mnext.nl/app/uploads/2020/05/1-6-608x342.jpg)
Biobased, circular Christmas bauble with packaging
![](https://www.mnext.nl/app/uploads/2020/04/mycelium-608x342.jpg)
Mycelium boards
![](https://www.mnext.nl/app/uploads/2020/04/IMG_4658-608x342.jpg)
Coloring Mycelium
![](https://www.mnext.nl/app/uploads/2020/03/beton-608x342.png)
Back to the Materials of the Future
![biobased-bloempot](https://www.mnext.nl/app/uploads/2020/02/DSC_2413-608x342.jpg)
National Biobased Database
![](https://www.mnext.nl/app/uploads/2020/02/brug-608x342.jpg)
Structural Health in Biobased Constructions
![](https://www.mnext.nl/app/uploads/2020/01/Levende-kleuren-008-608x342.jpg)
Beauti-Fully Biobased Fibers
![](https://www.mnext.nl/app/uploads/2020/01/depositphotos_63934323-stock-photo-coffee-beans-scattered-on-burlap-608x342.jpg)
Coffee Silverskin Biomass Utilization
![](https://www.mnext.nl/app/uploads/2020/01/carbon-black-barbecue-charcoal-1-608x342.jpg)
Sustainable solid biofuels
![](https://www.mnext.nl/app/uploads/2020/01/142A3090-small-608x342.jpg)
Biobonding: Improved biocomposites
![](https://www.mnext.nl/app/uploads/2020/01/IMG_9379-608x342.jpg)
ZCORE (from Seaweed to COating Resin applications)
![](https://www.mnext.nl/app/uploads/2020/01/Cashew_Nut_Tree-608x342.jpg)
Cashing cashew
![](https://www.mnext.nl/app/uploads/2019/12/suikerbiet.jpg-608x342.png)
Material research for 3D printing
![](https://www.mnext.nl/app/uploads/2019/12/zeewier-sterolen-608x342.jpg)
Seaweed Sterols
![](https://www.mnext.nl/app/uploads/2019/12/ui-verdient-meer-608x342.jpg)
Onion deserves more
![](https://www.mnext.nl/app/uploads/2019/12/opcirkelen-in-de-bouw-608x342.png)
Circling in construction
![](https://www.mnext.nl/app/uploads/2019/11/shutterstock_152590160_wastecorn-608x342.jpg)
Biomass flows in the province of South Holland
![](https://www.mnext.nl/app/uploads/2019/11/blok.jpg)
Circular Bio-based Construction Industry (CBCI)
![](https://www.mnext.nl/app/uploads/2019/11/shutterstock_90523096_wastegarbage-608x342.jpg)
Biodegradability of biopolymer and biopolymer composites
![](https://www.mnext.nl/app/uploads/2019/11/Biobased-Materials-Plus-608x342.png)
BBM+
![](https://www.mnext.nl/app/uploads/2019/11/DSCN3170-608x342.jpg)
Opportunities for composting in Brazil
![](https://www.mnext.nl/app/uploads/2019/09/grote-markt-breda-608x342.png)
Stadsjutters Breda
![](https://www.mnext.nl/app/uploads/2019/09/innovatietafels-608x342.png)
Innovation tables
![](https://www.mnext.nl/app/uploads/2019/04/dani-california-789655-unsplash-608x342.jpg)
Tomatozyme
![](https://www.mnext.nl/app/uploads/2019/02/DSC_1781-608x342.jpg)
MAA’s from algae
![](https://www.mnext.nl/app/uploads/2019/04/shutterstock_162956954_greenhouse-608x342.jpg)
Sensor wise Biobased
![](https://www.mnext.nl/app/uploads/2019/04/bas-emmen-533040-unsplash-608x342.jpg)
Pyrolysis Experimental Garden South
![](https://www.mnext.nl/app/uploads/2019/04/shutterstock_167802773_grasswaterdroplets-608x342.jpg)
Grassification
![](https://www.mnext.nl/app/uploads/2019/04/hout-608x342.png)
REFAWOOD
![](https://www.mnext.nl/app/uploads/2019/03/lars-blankers-564565-unsplash-608x342.jpg)
Valuable ONION
![](https://www.mnext.nl/app/uploads/2019/03/GCC-REWIN-West-Brabant-Biobased_Planten-002-608x342.jpg)
Biobased Network
![](https://www.mnext.nl/app/uploads/2018/12/Biobased-Battle-2018-deelnemers-608x342.jpg)
Living Lab Biobased Brazil
![](https://www.mnext.nl/app/uploads/2019/03/BACBIK12-608x342.jpg)
Biopolymer Application Center
![](https://www.mnext.nl/app/uploads/2019/02/gbo-banner-608x342.png)
Borderless Biobased Education
![](https://www.mnext.nl/app/uploads/2019/02/levende-kleuren-coebbe-608x342.png)
Living Colors
![](https://www.mnext.nl/app/uploads/2019/02/mycelium-test-608x342.png)
Mycelium
![](https://www.mnext.nl/app/uploads/2019/02/biokleur-608x342.jpg)
BioCOLOUR
![](https://www.mnext.nl/app/uploads/2019/02/biocanndo-608x342.png)
BioCannDo
![](https://www.mnext.nl/app/uploads/2019/02/joel-filipe-196735-unsplash-608x342.jpg)
Blue Chain
![](https://www.mnext.nl/app/uploads/2019/02/shutterstock_42966844_waterwaste-608x342.jpg)
WOW!
![](https://www.mnext.nl/app/uploads/2019/01/Biobased-wiki-608x342.jpg)
Green Growth
![](https://www.mnext.nl/app/uploads/2019/01/biobased-challenge-608x342.png)
Biobased Challenge
![](https://www.mnext.nl/app/uploads/2019/01/brug-608x342.jpg)
Biobased bridge
![](https://www.mnext.nl/app/uploads/2019/01/bb100-banner-608x342.png)
Pure Nature: 100% Biobased
![](https://www.mnext.nl/app/uploads/2019/02/logo-lbkn-608x342.jpg)
National Biobased Knowledge Network
![](https://www.mnext.nl/app/uploads/2019/01/gras05-608x342.jpg)