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Non-aqueous titrimetric determination of food preservatives and non-nutritive sweeteners using internal indicators.
Veerabhadra Rao, M. and Krishnamacharyulu, A. G. and Kapur, O. P. and Prakasa Sastry, C. S. (1983) Non-aqueous titrimetric determination of food preservatives and non-nutritive sweeteners using internal indicators. Journal of Food Science and Technology, 20 (5). 202-205, 18 ref..
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Abstract
Oracet blue B, Sudan blue GN, Sudan green 4B (amino anthraquinone dyes) and resazurin have been used for the first time as internal indicators in the non-aqueous titrimetric detn. of food preservatives such as sodium benzoate, sodium propionate, sodium salicylate and non-nutritive sweeteners such as sodium saccharin and sodium cyclamate employing perchloric acid in glacial acetic acid as titrant. The suitability of using Azur A, Azur C, Toluidine blue O (thiazine dyes) and Bromo pyrogallol red in titrations employing sodium methoxide as titrant, for detn. of acid forms of the above preservatives and non-nutritive sweeteners, sorbic acid and p-hydroxybenzoic acid. The results are accurate with a max. % error of 0.1, 0.8 and 2.5 for macro, semi-micro and micro titrations resp. The recoveries of added preservatives and non-nutritive sweeteners to food products are reported. Photometric titrations are also described.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TITRATION-; food preservatives, titrimetric detn. internal indicators for; sweeteners, titrimetric detn. internal indicators for; PRESERVATIVES-; SWEETENERS-; titrimetric detn. internal indicators for sweeteners |
| Subjects: | 600 Technology > 08 Food technology > 31 Food Additives 600 Technology > 08 Food technology > 13 Quality control |
| Divisions: | Food Safety Analytical Quality Control Lab |
| Depositing User: | Food Sci. & Technol. Information Services |
| Date Deposited: | 10 Nov 2010 04:45 |
| Last Modified: | 28 Dec 2011 09:54 |
| URI: | http://ir.cftri.res.in/id/eprint/6636 |
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