Дельта-глюконолактон
Дельта-глюконолактон атрибут
| Температура плавления: |
160 °C (dec.)(lit.) |
| Температура кипения: |
230.35°C (rough estimate) |
| альфа: |
65 º (c=1,H2O) |
| плотность: |
0.6 |
| показатель преломления: |
63.5 ° (C=10, H2O) |
| температура хранения: |
Sealed in dry,Room Temperature |
| растворимость: |
590 г/л Гидролиз |
| форма: |
Кристаллический порошок |
| пка: |
12.06±0.60(Predicted) |
| цвет: |
От белого до не совсем белого |
| РН: |
3.6 (10g/l, H2O, 20℃) |
| Запах: |
wh. cryst. powd., pract. odorless |
| Растворимость в воде: |
500 г/л (20°С) |
| Мерк: |
14,4457 |
| БРН: |
83286 |
| LogP: |
-2.38 |
| Справочник по базе данных CAS: |
90-80-2(CAS DataBase Reference) |
| FDA 21 CFR: |
184.1318; 155.120 |
| Вещества, добавляемые в пищу (ранее EAFUS): |
GLUCONO-DELTA LACTONE |
| Рейтинг продуктов питания EWG: |
1 |
| FDA UNII: |
WQ29KQ9POT |
| Справочник по химии NIST: |
D-Gluconic acid, «delta»-lactone(90-80-2) |
| Система регистрации веществ EPA: |
.delta.-Gluconolactone (90-80-2) |
Дельта-глюконолактон химические свойства, назначение, производство
Описание
Glucono delta-lactone (C6H10O6), molecular weight 178.14, is an
inner ester of gluconic acid. Commonly named gluconolactone,
other synonyms include D-gluconic acid delta-lactone, D-glucono-
1, 5-lactone, and D-delta-gluconolactone. Some of its earliest uses
as a food ingredient were as a flavoring (e.g., sherbets) and to
reduce fat absorption in doughnuts and cones. Glucono deltalactone
tastes sweet initially and has a slightly acid-aftertaste.
Химические свойства
Powder
Использование
Geogard(R)Ultra is a synergistic blend of gluconolactone and sodium benzoate. This blend provides broad spectrum protection against product spoilage in a variety of personal care formulations. Product Data Sheet
Подготовка
Glucono delta-lactone is prepared commercially by the oxidation of glucose with bromine water.
Общее описание
Gluconolactone is a non-toxic component of the skin. It has anti-oxidant and free radical scavenging effects. Gluconolactone has antiaging and skin-firming properties. It acts as a?β-glucosidase inhibitor. Gluconolactone stimulates cellulase gene expression.
Профиль безопасности
Mutation data reported.
When heated to decomposition it emits
acrid smoke and irritating fumes.
Методы очистки
Crystallise Dglucono-lactone from ethylene glycol monomethyl ether and dry for 1hour at 110o. It can be freed from other sugars via a column of Celite and charcoal (750g of each, 90 x 7.5cm) which is washed with 0.01N formic acid until the pH of the wash is equal to that of the entering acid. The lactone is applied in H2O and eluted with 0.01N formic acid (7L), then eluted with 7.5% EtOH/0.01N formic acid (8L), then 15% EtOH/0.01N formic acid (8L) which removes pentose and isomaltose (the optical rotation of the eluates are used for sugar detection) and finally elution with aqueous formic acid provides glucolactone which is obtained by evaporating or freeze drying. Its solubility in H2O is 60% and 1% in EtOH. A solution in H2O is slightly acidic, and the lactone dissolves in an equivalent of aqueous NaOH to form sodium D-gluconate [527-07-1] M 218.1, m 2002 0 6o(dec), [ ] D 25 +12o (c 10, H2O), pK2 5 3.6. [cf p 553, Smith & Whelan Biochemical Preparations 10 127 1963, Beilstein 3 IV 1255.]
Дельта-глюконолактон препаратная продукция и сырье
сырьё
препарат
Дельта-глюконолактон поставщик
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