Sorption and mass exchange characteristics of extrudates enriched with cocoa bean shells
The aim of the experimental work was to determine the sorption isotherms of wheat extrudates enriched with cocoa bean shells at different temperatures (10 °C, 25 °C, 40 °C) and water activities (0.11 to 0.85) using the static gravimetric method. Five three parameter models (Chung-Pfost, Halsey, Oswi...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2024-01-01
|
| Series: | BIO Web of Conferences |
| Online Access: | https://www.bio-conferences.org/articles/bioconf/pdf/2024/21/bioconf_foset2023_03001.pdf |
| _version_ | 1797213175180951552 |
|---|---|
| author | Kodinova Siyka Toshkov Nesho Bozadjiev Bojidar Delchev Naiden |
| author_facet | Kodinova Siyka Toshkov Nesho Bozadjiev Bojidar Delchev Naiden |
| author_sort | Kodinova Siyka |
| collection | DOAJ |
| description | The aim of the experimental work was to determine the sorption isotherms of wheat extrudates enriched with cocoa bean shells at different temperatures (10 °C, 25 °C, 40 °C) and water activities (0.11 to 0.85) using the static gravimetric method. Five three parameter models (Chung-Pfost, Halsey, Oswin, Henderson, GAB) were applied to survey the experimental data. It was established that the isotherms demonstrate Types II, according to the Brunauer’s classification and the Oswin and Chung-Pfost models were suitable for describing the relationship between the equilibrium moisture content and the water activity. The monolayer moisture content was established using the Brunauer-Emmett-Teller equation and ranged within 5.08 % d.b. and 7.80 % d.b., respectively. The increase of temperature decreases the sorption characheristics of the examined extrudates. The specific surface area of sorption for wheat extrudates enriched with cocoa bean shells varies between 181.59 (m2/g) and 278.82 (m2/g). It was found that the increase of temperature of the matrix in the range of 10 °C to 40 °C decreases the values of monolayer moisture content and the specific surface area of sorption. |
| first_indexed | 2024-04-24T10:54:06Z |
| format | Article |
| id | doaj.art-54b35c3b42f54ab69bc16b19ec80cb34 |
| institution | Directory Open Access Journal |
| issn | 2117-4458 |
| language | English |
| last_indexed | 2024-04-24T10:54:06Z |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | BIO Web of Conferences |
| spelling | doaj.art-54b35c3b42f54ab69bc16b19ec80cb342024-04-12T07:37:29ZengEDP SciencesBIO Web of Conferences2117-44582024-01-011020300110.1051/bioconf/202410203001bioconf_foset2023_03001Sorption and mass exchange characteristics of extrudates enriched with cocoa bean shellsKodinova Siyka0Toshkov Nesho1Bozadjiev Bojidar2Delchev Naiden3Department of Process engineering, Technical Faculty, University of Food TechnologiesDepartment of Process engineering, Technical Faculty, University of Food TechnologiesDepartment of Technology of cereals, fodder, bread and confectionary products, Technological Faculty, University of Food TechnologiesDepartment of Analytical chemistry and Physical chemistry, Technological Faculty, University of Food TechnologiesThe aim of the experimental work was to determine the sorption isotherms of wheat extrudates enriched with cocoa bean shells at different temperatures (10 °C, 25 °C, 40 °C) and water activities (0.11 to 0.85) using the static gravimetric method. Five three parameter models (Chung-Pfost, Halsey, Oswin, Henderson, GAB) were applied to survey the experimental data. It was established that the isotherms demonstrate Types II, according to the Brunauer’s classification and the Oswin and Chung-Pfost models were suitable for describing the relationship between the equilibrium moisture content and the water activity. The monolayer moisture content was established using the Brunauer-Emmett-Teller equation and ranged within 5.08 % d.b. and 7.80 % d.b., respectively. The increase of temperature decreases the sorption characheristics of the examined extrudates. The specific surface area of sorption for wheat extrudates enriched with cocoa bean shells varies between 181.59 (m2/g) and 278.82 (m2/g). It was found that the increase of temperature of the matrix in the range of 10 °C to 40 °C decreases the values of monolayer moisture content and the specific surface area of sorption.https://www.bio-conferences.org/articles/bioconf/pdf/2024/21/bioconf_foset2023_03001.pdf |
| spellingShingle | Kodinova Siyka Toshkov Nesho Bozadjiev Bojidar Delchev Naiden Sorption and mass exchange characteristics of extrudates enriched with cocoa bean shells BIO Web of Conferences |
| title | Sorption and mass exchange characteristics of extrudates enriched with cocoa bean shells |
| title_full | Sorption and mass exchange characteristics of extrudates enriched with cocoa bean shells |
| title_fullStr | Sorption and mass exchange characteristics of extrudates enriched with cocoa bean shells |
| title_full_unstemmed | Sorption and mass exchange characteristics of extrudates enriched with cocoa bean shells |
| title_short | Sorption and mass exchange characteristics of extrudates enriched with cocoa bean shells |
| title_sort | sorption and mass exchange characteristics of extrudates enriched with cocoa bean shells |
| url | https://www.bio-conferences.org/articles/bioconf/pdf/2024/21/bioconf_foset2023_03001.pdf |
| work_keys_str_mv | AT kodinovasiyka sorptionandmassexchangecharacteristicsofextrudatesenrichedwithcocoabeanshells AT toshkovnesho sorptionandmassexchangecharacteristicsofextrudatesenrichedwithcocoabeanshells AT bozadjievbojidar sorptionandmassexchangecharacteristicsofextrudatesenrichedwithcocoabeanshells AT delchevnaiden sorptionandmassexchangecharacteristicsofextrudatesenrichedwithcocoabeanshells |