Lipid oxidation in differently aged beef : use of static headspace gas chromatographic and 2-thiobarbituric acid reactive substance methods (TBARS)
This thesis assesses and compares lipid oxidation in beef samples from different ageing approaches by using static headspace gas chromatographic method and 2-thiobarbituric acid reactive substances. Beef samples were compared between three different ageing methods: hang ageing (traditional dry agein...
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| Format: | H2 |
| Language: | Inglés |
| Published: |
SLU/Dept. of Animal Nutrition and Management (until 231231)
2013
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| Subjects: |
| _version_ | 1855570902100475904 |
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| author | Wen, Jinzhu |
| author_browse | Wen, Jinzhu |
| author_facet | Wen, Jinzhu |
| author_sort | Wen, Jinzhu |
| collection | Epsilon Archive for Student Projects |
| description | This thesis assesses and compares lipid oxidation in beef samples from different ageing approaches by using static headspace gas chromatographic method and 2-thiobarbituric acid reactive substances. Beef samples were compared between three different ageing methods: hang ageing (traditional dry ageing); vacuum bag ageing (wet ageing); and tublin bag ageing and two ageing durations, 10 days or 21 days. Gas chromatographic and spectrophotometric
methods were utilized for quantifying volatile lipid oxidation products and TBARS, respectively. Results showed that beef from hang ageing had lower TBARS values and
volatile lipid oxidation products than the other two ageing methods irrespective of ageing time. The longer ageing time yielded higher TBARS values and volatile compounds in all
ageing methods. Among the volatile lipid oxidation aldehydes, hexanal was the most predominant one. |
| format | H2 |
| id | RepoSLU5787 |
| institution | Swedish University of Agricultural Sciences |
| language | Inglés |
| publishDate | 2013 |
| publishDateSort | 2013 |
| publisher | SLU/Dept. of Animal Nutrition and Management (until 231231) |
| publisherStr | SLU/Dept. of Animal Nutrition and Management (until 231231) |
| record_format | eprints |
| spelling | RepoSLU57872013-07-05T14:49:23Z Lipid oxidation in differently aged beef : use of static headspace gas chromatographic and 2-thiobarbituric acid reactive substance methods (TBARS) Lipidoxidation i nötkött under olika lagringsbetingelser : mätningar med statisk head-space gaskromatografi och 2-tiobarbitursyrareaktiv substans (TBARS) Wen, Jinzhu lipid oxidation beef ageing TBARS static headspace gas chromatography This thesis assesses and compares lipid oxidation in beef samples from different ageing approaches by using static headspace gas chromatographic method and 2-thiobarbituric acid reactive substances. Beef samples were compared between three different ageing methods: hang ageing (traditional dry ageing); vacuum bag ageing (wet ageing); and tublin bag ageing and two ageing durations, 10 days or 21 days. Gas chromatographic and spectrophotometric methods were utilized for quantifying volatile lipid oxidation products and TBARS, respectively. Results showed that beef from hang ageing had lower TBARS values and volatile lipid oxidation products than the other two ageing methods irrespective of ageing time. The longer ageing time yielded higher TBARS values and volatile compounds in all ageing methods. Among the volatile lipid oxidation aldehydes, hexanal was the most predominant one. SLU/Dept. of Animal Nutrition and Management (until 231231) 2013 H2 eng https://stud.epsilon.slu.se/5787/ |
| spellingShingle | lipid oxidation beef ageing TBARS static headspace gas chromatography Wen, Jinzhu Lipid oxidation in differently aged beef : use of static headspace gas chromatographic and 2-thiobarbituric acid reactive substance methods (TBARS) |
| title | Lipid oxidation in differently aged beef : use of static headspace gas chromatographic and 2-thiobarbituric acid reactive substance methods (TBARS) |
| title_full | Lipid oxidation in differently aged beef : use of static headspace gas chromatographic and 2-thiobarbituric acid reactive substance methods (TBARS) |
| title_fullStr | Lipid oxidation in differently aged beef : use of static headspace gas chromatographic and 2-thiobarbituric acid reactive substance methods (TBARS) |
| title_full_unstemmed | Lipid oxidation in differently aged beef : use of static headspace gas chromatographic and 2-thiobarbituric acid reactive substance methods (TBARS) |
| title_short | Lipid oxidation in differently aged beef : use of static headspace gas chromatographic and 2-thiobarbituric acid reactive substance methods (TBARS) |
| title_sort | lipid oxidation in differently aged beef : use of static headspace gas chromatographic and 2-thiobarbituric acid reactive substance methods (tbars) |
| topic | lipid oxidation beef ageing TBARS static headspace gas chromatography |