Investigation of Biochars in Terms of Vitamin E Adsorption Capacity
Vitamin E is important for ruminants’ health. To increase the rate of vitamin E resorption, the use of a carrier is recommended. One authorised porous feed additive is biochar. Biochar’s adsorption capacity is affected by its pore volume, which is determined, among other factors, by the biomass and...
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2025-05-01
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| author | Franziska Witte Ngoc Huyen Anh Dinh Andreas Juadjur Volker Heinz Christian Visscher Jochen Weiss Nino Terjung |
| author_facet | Franziska Witte Ngoc Huyen Anh Dinh Andreas Juadjur Volker Heinz Christian Visscher Jochen Weiss Nino Terjung |
| author_sort | Franziska Witte |
| collection | DOAJ |
| description | Vitamin E is important for ruminants’ health. To increase the rate of vitamin E resorption, the use of a carrier is recommended. One authorised porous feed additive is biochar. Biochar’s adsorption capacity is affected by its pore volume, which is determined, among other factors, by the biomass and the production process applied. For this purpose, the vitamin E adsorption capacity of ten commercial biochars with a varying surface area in the range of 2.6 to 20 nm was investigated. The results of these single-point batch experiments were compared to the theoretical results using a monolayer adsorption model. Our hypothesis was proven, as the theoretical model could predict the experimental adsorption capacity. This generally suggests that the number of trials required to identify optimal adsorbents can be reduced. A high percentage of vitamin E adsorption (>90%) was obtained with a short adsorption time of 10 min using an adsorbent dosage of 15.78 g/L and a vitamin E concentration of 1.70 g/L. The highest correlation of vitamin E adsorption existed for the mesopore class, ranging from 3.22 to 4.03 nm in Barrett–Joyner–Halenda surface area. This indicates the necessity of knowing the size of the adsorptive and the adsorbent in order to optimise sorption kinetics. |
| format | Article |
| id | doaj-art-14a1d1ec343f4afe87bce2e9c8ce076c |
| institution | DOAJ |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj-art-14a1d1ec343f4afe87bce2e9c8ce076c2025-08-20T03:11:18ZengMDPI AGApplied Sciences2076-34172025-05-011511598310.3390/app15115983Investigation of Biochars in Terms of Vitamin E Adsorption CapacityFranziska Witte0Ngoc Huyen Anh Dinh1Andreas Juadjur2Volker Heinz3Christian Visscher4Jochen Weiss5Nino Terjung6DIL German Institute of Food Technologies, Prof.-v.-Klitzing-Str. 7, 49610 Quakenbrueck, GermanyDIL German Institute of Food Technologies, Prof.-v.-Klitzing-Str. 7, 49610 Quakenbrueck, GermanyDIL German Institute of Food Technologies, Prof.-v.-Klitzing-Str. 7, 49610 Quakenbrueck, GermanyDIL German Institute of Food Technologies, Prof.-v.-Klitzing-Str. 7, 49610 Quakenbrueck, GermanyInstitute for Animal Nutrition, University of Veterinary Medicine, Bischofsholer Damm 15, 30173 Hanover, GermanyDepartment of Food Material Science, Institute of Food Science and Biotechnology, University of Hohenheim, Garbenstr. 25, 70599 Stuttgart, GermanyDIL German Institute of Food Technologies, Prof.-v.-Klitzing-Str. 7, 49610 Quakenbrueck, GermanyVitamin E is important for ruminants’ health. To increase the rate of vitamin E resorption, the use of a carrier is recommended. One authorised porous feed additive is biochar. Biochar’s adsorption capacity is affected by its pore volume, which is determined, among other factors, by the biomass and the production process applied. For this purpose, the vitamin E adsorption capacity of ten commercial biochars with a varying surface area in the range of 2.6 to 20 nm was investigated. The results of these single-point batch experiments were compared to the theoretical results using a monolayer adsorption model. Our hypothesis was proven, as the theoretical model could predict the experimental adsorption capacity. This generally suggests that the number of trials required to identify optimal adsorbents can be reduced. A high percentage of vitamin E adsorption (>90%) was obtained with a short adsorption time of 10 min using an adsorbent dosage of 15.78 g/L and a vitamin E concentration of 1.70 g/L. The highest correlation of vitamin E adsorption existed for the mesopore class, ranging from 3.22 to 4.03 nm in Barrett–Joyner–Halenda surface area. This indicates the necessity of knowing the size of the adsorptive and the adsorbent in order to optimise sorption kinetics.https://www.mdpi.com/2076-3417/15/11/5983biocharvitamin Ecarriertheoretical adsorption capacityexperimental adsorption capacitymesopores |
| spellingShingle | Franziska Witte Ngoc Huyen Anh Dinh Andreas Juadjur Volker Heinz Christian Visscher Jochen Weiss Nino Terjung Investigation of Biochars in Terms of Vitamin E Adsorption Capacity Applied Sciences biochar vitamin E carrier theoretical adsorption capacity experimental adsorption capacity mesopores |
| title | Investigation of Biochars in Terms of Vitamin E Adsorption Capacity |
| title_full | Investigation of Biochars in Terms of Vitamin E Adsorption Capacity |
| title_fullStr | Investigation of Biochars in Terms of Vitamin E Adsorption Capacity |
| title_full_unstemmed | Investigation of Biochars in Terms of Vitamin E Adsorption Capacity |
| title_short | Investigation of Biochars in Terms of Vitamin E Adsorption Capacity |
| title_sort | investigation of biochars in terms of vitamin e adsorption capacity |
| topic | biochar vitamin E carrier theoretical adsorption capacity experimental adsorption capacity mesopores |
| url | https://www.mdpi.com/2076-3417/15/11/5983 |
| work_keys_str_mv | AT franziskawitte investigationofbiocharsintermsofvitamineadsorptioncapacity AT ngochuyenanhdinh investigationofbiocharsintermsofvitamineadsorptioncapacity AT andreasjuadjur investigationofbiocharsintermsofvitamineadsorptioncapacity AT volkerheinz investigationofbiocharsintermsofvitamineadsorptioncapacity AT christianvisscher investigationofbiocharsintermsofvitamineadsorptioncapacity AT jochenweiss investigationofbiocharsintermsofvitamineadsorptioncapacity AT ninoterjung investigationofbiocharsintermsofvitamineadsorptioncapacity |