ICAR Research Data Repository for Knowledge Management
Proteins
CMFRI Repository
View Archive Info| Field | Value | |
| Relation |
http://eprints.cmfri.org.in/3129/
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| Title |
Proteins
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| Creator |
Subhashini, M H
Ravindranath, M H |
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| Subject |
Crustacean Fisheries
Biochemical Study |
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| Description |
The nitrogen of the protein precipitate is converted to acid ammonium sulphate by digestion with sulphuric acid and various catalysts. On making the reaction mixture alkaline, ammonia is liberated, which is removed by steam distillation. The ammonia liberated by steam distillation is gathered in acid solution containing an indicator. Change in pH of the acid solution due to addition of ammonia is indicated by the indicator dye. This solution is back-titrated with 0.01 N HCI, and the original acidic condition indicated by the indicator dye, is taken as the end point. The amount of HCl consumed in back titration is proportional to the amount of ammonia liberated. Percentage of nitrogen is calculated from the titre value, which is converted into gm% of protein present in sample by multiplying the percentage nitrogen with a factor 6.2S. The factor 6.25 is used for conversion because in average, protein contains 16% of nitrogen. |
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| Date |
1981
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Language |
en
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| Identifier |
http://eprints.cmfri.org.in/3129/1/Spl_7-6.pdf
Subhashini, M H and Ravindranath, M H (1981) Proteins. CMFRI Special Publication (7). pp. 31-41. |
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