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Germination as a processing technique for soybeans in small-scale broiler farming
Dissertation (MSc(Agric))--University of Pretoria, 2011.
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University of Pretoria
2013
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| _version_ | 1867613504246120448 |
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| access_status_str | Open Access |
| author2 | Van Rensburg, Connie E.J. |
| author_browse | Van Rensburg, Connie E.J. |
| author_facet | Van Rensburg, Connie E.J. |
| collection | Thesis |
| dc_rights_str_mv | © 2011, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria |
| description | Dissertation (MSc(Agric))--University of Pretoria, 2011. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/24744 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:37:11.932Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/24744 Germination as a processing technique for soybeans in small-scale broiler farming Van Rensburg, Connie E.J. nckay@webmail.co.za Kayembe, Ndonda Charles Germination Soybeans Anti-nutritional factors Protein UCTD Dissertation (MSc(Agric))--University of Pretoria, 2011. The effect of germination on the levels of certain antinutritional factors, nutritional composition and in vitro protein digestibility (IVPD) of soybean seeds were determined. Raw soybeans contain antinutritional factors, such as trypsin inhibitors (83.05 mg/g), total polyphenols (10.83%) and condensed tannins (1.24%). These factors limit the use of soybeans as a source of protein, carbohydrates and minerals in the poultry industry. In general, soybeans are subjected to heat treatment to reduce the amount of antinutritional factors within the seeds, but it is costly and needs high technology equipment. In order to assist small-scale chicken farmers or people living in developing countries, traditional or domestic processing methods are implemented to address the problem of antinutritional factors (ANFs) in soybeans. This study focused on germination as a versatile and low cost practice. Different lengths of germination time were assessed and compared to each another. Soybeans were soaked for 24 hours and allowed to germinate from one day up to six days. Changes within seeds were noted for nutritional and antinutritional factors during germination. Condensed tannins and trypsin inhibitors decreased significantly (P<0.05) while total polyphenols increased from 5 to 6 days. Protein and fat content increased significantly (P<0.05), but starch content decreased with germination. There were no significant changes for IVPD during germination of soybeans. Germination was also compared to other traditional methods such as roasting, soaking and dehulling. Results showed that dehulled soybeans had the highest proximate composition which was significantly different from other treatments (P<0.05), but the total polyphenols increased. It was concluded that germination for a period of three days effectively improved the nutritional value of soybeans and can be considered as an alternative treatment of soybeans in situations where heat treatment is impossible or impractical. Copyright Animal and Wildlife Sciences unrestricted 2013-09-06T18:15:53Z 2012-05-18 2013-09-06T18:15:53Z 2012-04-24 2011 2012-05-16 Dissertation Kayembe, NC 2011, Germination as a processing technique for soybeans in small-scale broiler farming, MSc(Agric) dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/24744 > C12/4/101/gm http://hdl.handle.net/2263/24744 http://upetd.up.ac.za/thesis/available/etd-05162012-114737/ © 2011, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria application/pdf University of Pretoria |
| spellingShingle | Germination Soybeans Anti-nutritional factors Protein UCTD Germination as a processing technique for soybeans in small-scale broiler farming |
| title | Germination as a processing technique for soybeans in small-scale broiler farming |
| title_full | Germination as a processing technique for soybeans in small-scale broiler farming |
| title_fullStr | Germination as a processing technique for soybeans in small-scale broiler farming |
| title_full_unstemmed | Germination as a processing technique for soybeans in small-scale broiler farming |
| title_short | Germination as a processing technique for soybeans in small-scale broiler farming |
| title_sort | germination as a processing technique for soybeans in small scale broiler farming |
| topic | Germination Soybeans Anti-nutritional factors Protein UCTD |
| url | http://hdl.handle.net/2263/24744 http://upetd.up.ac.za/thesis/available/etd-05162012-114737/ |