Physicochemical characteristics of Bambara groundnut dietary fibres extracted using wet milling
The objectives of this study were to extract soluble and insoluble dietary fibres from four Bambara groundnut (BGN) varieties (black-eye, brown-eye, brown and red) using the wet milling method and evaluate their physicochemical properties. The swelling capacities of brown-eye (6.5 g/mL) and black-ey...
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| Format: | Article |
| Language: | English |
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Academy of Science of South Africa
2016-02-01
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| Series: | South African Journal of Science |
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| Online Access: | https://www.sajs.co.za/article/view/4153 |
| _version_ | 1819073017688358912 |
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| author | Yvonne Maphosa Victoria. A. Jideani |
| author_facet | Yvonne Maphosa Victoria. A. Jideani |
| author_sort | Yvonne Maphosa |
| collection | DOAJ |
| description | The objectives of this study were to extract soluble and insoluble dietary fibres from four Bambara groundnut (BGN) varieties (black-eye, brown-eye, brown and red) using the wet milling method and evaluate their physicochemical properties. The swelling capacities of brown-eye (6.5 g/mL) and black-eye (6.2 g/mL) fibres were higher (p≤0.05) than those of red (6.0 g/mL) and brown (5.5 g/mL) fibres while the water holding capacities of black-eye and brown-eye fibres (2.84 g and 2.83 g water/g sample) were higher (p≤0.05) than those of brown and red fibres. The bulk densities of insoluble dietary fibres (IDFs) and soluble dietary fibres (SDFs) ranged between 0.57 g/mL (red) to 0.67 g/mL (brown-eye) and 0.46 g/mL (brown-eye) to 0.57 g/mL (black-eye), respectively. The oil binding capacities (OBCs) of SDFs ranged between 2.78 g oil/g sample (brown) and 4.03 g oil/g sample (brown-eye) while the OBC of all IDFs did not differ (p>0.05), ranging between 1.52 g oil/g sample (brown) and 1.40 g oil/g sample (brown-eye and black-eye). Black-eye and brown-eye dietary fibres had higher phenolic and total sugar content. The findings of this study indicate the potential of BGN fibres in food systems as fat replacers, emulsion stabilisers, water binders, bulking agents, thickeners and nutritional additives. |
| first_indexed | 2024-12-21T17:46:56Z |
| format | Article |
| id | doaj.art-8d4685d32f4849b1a36fa6c57339af80 |
| institution | Directory Open Access Journal |
| issn | 1996-7489 |
| language | English |
| last_indexed | 2024-12-21T17:46:56Z |
| publishDate | 2016-02-01 |
| publisher | Academy of Science of South Africa |
| record_format | Article |
| series | South African Journal of Science |
| spelling | doaj.art-8d4685d32f4849b1a36fa6c57339af802022-12-21T18:55:27ZengAcademy of Science of South AfricaSouth African Journal of Science1996-74892016-02-011121/28810.17159/sajs.2016/201501264153Physicochemical characteristics of Bambara groundnut dietary fibres extracted using wet millingYvonne Maphosa0Victoria. A. Jideani1Department of Food Technology, Cape Peninsula University of Technology, Cape Town, South AfricaDepartment of Food Technology, Cape Peninsula University of Technology, Cape Town, South AfricaThe objectives of this study were to extract soluble and insoluble dietary fibres from four Bambara groundnut (BGN) varieties (black-eye, brown-eye, brown and red) using the wet milling method and evaluate their physicochemical properties. The swelling capacities of brown-eye (6.5 g/mL) and black-eye (6.2 g/mL) fibres were higher (p≤0.05) than those of red (6.0 g/mL) and brown (5.5 g/mL) fibres while the water holding capacities of black-eye and brown-eye fibres (2.84 g and 2.83 g water/g sample) were higher (p≤0.05) than those of brown and red fibres. The bulk densities of insoluble dietary fibres (IDFs) and soluble dietary fibres (SDFs) ranged between 0.57 g/mL (red) to 0.67 g/mL (brown-eye) and 0.46 g/mL (brown-eye) to 0.57 g/mL (black-eye), respectively. The oil binding capacities (OBCs) of SDFs ranged between 2.78 g oil/g sample (brown) and 4.03 g oil/g sample (brown-eye) while the OBC of all IDFs did not differ (p>0.05), ranging between 1.52 g oil/g sample (brown) and 1.40 g oil/g sample (brown-eye and black-eye). Black-eye and brown-eye dietary fibres had higher phenolic and total sugar content. The findings of this study indicate the potential of BGN fibres in food systems as fat replacers, emulsion stabilisers, water binders, bulking agents, thickeners and nutritional additives.https://www.sajs.co.za/article/view/4153swelling capacitybulk densitywater holding capacitysoluble dietary fibreinsoluble dietary fibre |
| spellingShingle | Yvonne Maphosa Victoria. A. Jideani Physicochemical characteristics of Bambara groundnut dietary fibres extracted using wet milling South African Journal of Science swelling capacity bulk density water holding capacity soluble dietary fibre insoluble dietary fibre |
| title | Physicochemical characteristics of Bambara groundnut dietary fibres extracted using wet milling |
| title_full | Physicochemical characteristics of Bambara groundnut dietary fibres extracted using wet milling |
| title_fullStr | Physicochemical characteristics of Bambara groundnut dietary fibres extracted using wet milling |
| title_full_unstemmed | Physicochemical characteristics of Bambara groundnut dietary fibres extracted using wet milling |
| title_short | Physicochemical characteristics of Bambara groundnut dietary fibres extracted using wet milling |
| title_sort | physicochemical characteristics of bambara groundnut dietary fibres extracted using wet milling |
| topic | swelling capacity bulk density water holding capacity soluble dietary fibre insoluble dietary fibre |
| url | https://www.sajs.co.za/article/view/4153 |
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