Sodium isoascorbate
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| General | ||||||||||||||||
| Surname | Sodium isoascorbate | |||||||||||||||
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| Molecular formula | C 6 H 7 NaO 6 | |||||||||||||||
| Brief description |
colorless powder |
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| properties | ||||||||||||||||
| Molar mass | 198.11 g mol −1 | |||||||||||||||
| Physical state |
firmly |
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| Melting point |
168-170 ° C |
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| solubility |
soluble in water: 153 g l −1 (25 ° C) |
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| safety instructions | ||||||||||||||||
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . | ||||||||||||||||
Sodium isoascorbate is the sodium salt of D - isoascorbic acid , an epimer of L - ascorbic acid .
Extraction and presentation
Sodium isoascorbate is made from isoascorbic acid.
use
Sodium isoascorbate is used as an alternative to ascorbic acid as a food additive (E316) as an antioxidant and color stabilizer . It is only permitted for heat-treated cream, dried or frozen fish with red skin, preserved fish products and cured and otherwise preserved meat products.
Web links
- Sodium Erythorbate (PMP Fermentation) ( Memento from July 15, 2011 in the Internet Archive )
literature
- YH Hui, Robert S. Igoe: Dictionary of Food Ingredients , Aspen, Gaithersburg, MD 2001, ISBN 978-0-8342-1952-6 .
Individual evidence
- ↑ Entry on E 316: Sodium erythorbate in the European database for food additives, accessed on June 28, 2020.
- ↑ a b c data sheet d - (+) - Isoascorbic acid, sodium salt (PDF) from Fisher Scientific , accessed on February 13, 2014.
- ↑ a b Entry on Sodium Isoascorbate Monohydrate at TCI Europe, accessed on January 23, 2016.
- ↑ Sodium isoascorbate (additives) .
- ↑ Sodium isoascorbate (that's inside) .