Use of fecal and sawdust biochar as a new perfume delivery system
| Autor: | Charles Jean-François Chappuis, Yvan Niclass, Pascal Beaussoubre, Wolfgang Fieber, Janina Zimmermann, Christian Starkenmann, Isabelle Cayeux |
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| Rok vydání: | 2017 |
| Předmět: |
Long lasting
Chemistry Pine sawdust 02 engineering and technology General Chemistry 010501 environmental sciences Solid material 021001 nanoscience & nanotechnology Pulp and paper industry 01 natural sciences Cellulosic ethanol visual_art Biochar visual_art.visual_art_medium Delivery system Sawdust 0210 nano-technology Charcoal 0105 earth and related environmental sciences Food Science |
| Zdroj: | Flavour and Fragrance Journal. 33:82-90 |
| ISSN: | 0882-5734 |
| DOI: | 10.1002/ffj.3413 |
| Popis: | Human fecal matter mixed with pine sawdust was heated at 200, 300, 400, 500, 600, or 650°C in the absence of oxygen to generate black solid residues called biochars. These biochars were subsequently evaluated as a perfume delivery system for air care. The performance of biochar was compared to that of cellulosic material, which is commonly used for the release of perfume into the air, and to that of active charcoal, which is used for air purification. A perfume model system consisting of alcohols, aldehydes, alkanes, and terpenes was loaded onto these solid materials. Results showed that the cellulosic material had a good release profile, but that the aldehydes oxidized to some extent, which generates a rancid smell if no antioxidant is added. On the other hand, active charcoal strongly absorbed all volatiles such that no perfume release occurred and no smell was perceived. The biochar heated at 200°C showed good release performance (long lasting) but some fecal off-notes remained in the background. Biochar prepared at 300°C was the best material as a compromise between the release profile and the energy needed to produce the material. The goal of this work was to add value to biochar and in so doing empower toilet innovators, aid the circular economy, and propose a sustainable solution for malodor control. |
| Databáze: | OpenAIRE |
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