Sodium propionate

About: Sodium propionate is a research topic. Over the lifetime, 463 publications have been published within this topic receiving 9451 citations. The topic is also known as: E281 & sodium propionate anhydrous.

Novel mold inhibitors and methods of making and using the same

Abstract: A mold growth inhibiting product for foodstuffs, comprising a mixture of: a) a first compound, wherein said first compound is azodicarbonamide; and b) a second compounds, wherein said second compound is selected from the group consisting of citric acid, lastic acid, fumaric acid, sorbic acid, potassium sorbate, sodium sodium sorbate, calcium sorbate, propionic acid, potassium propionate, sodium propionate, calcium propionate, benzoic acid, sodium benzoate, calcium benzoate, potassium benzoate, paraben, acetic acid, calcium acetate or mixtures thereof.

Preparation method of low-alkali and low-foam deoiling agent at room temperature

Abstract: The present invention discloses a preparation method of a low-alkali and low-foam deoiling agent at a room temperature The method comprises: weighing raw materials according to a certain weight ratio so as to be spare, wherein the raw materials comprise, by weight, 25-30 parts of sodium carbonate, 8-10 parts of sodium tripolyphosphate, 1-7 parts of sodium dodecylbenzene sulfonate, 13-16 parts of sodium octyl sulfate, 50-68 parts of an amphoteric activator, and 01-05 part of a defoamer; and sequentially adding the sodium carbonate, the sodium tripolyphosphate, the sodium dodecylbenzene sulfonate, the sodium octyl sulfate, the octyl amine sodium propionate and the defoamer to a 1 L container, adding water to achieve the volume of 1 L, and uniformly mixing to obtain the low-alkali and low-foam deoiling agent According to the present invention, the preparation method has characteristics of simple process and easy operation; with the product produced by using the preparation method, the operation can be performed at the room temperature without heating so as to reduce energy consumption; the alkalinity is low, such that the operator only requires general protection so as to perform operation, the washing is easy to perform, and the water resource is saved; and due to the defoamer, a lot of foams can not be generated so as not to pollute the environment

Improvement in aureofuscin production by streptomyces aureofuscus with the addition of acetate and propionate sodium = Melhoria na produção aureofuscin por Streptomyces aureofaciens com a adição de acetato e propionato de sódio

Abstract: Aureofuscin is an important tetraene macrolides antibiotic produced in submerged culture by Streptomyces aureofuscus isolated from the soil in China. In the present work, the effects of the addition of precursor on cell growth and the kinetics of aureofuscin production were investigated during submerged cultivation of Str. aureofuscus . The sodium acetate and sodium propionate are more suitable precursor than alcohol, sodium butyrate, n-propanol, n-butanol. The addition of acetate and propionic sodium at a ratio of 5:1 at a total concentration of 1.5mg mL −1 after 24 h showed stimulatory effects on aureofuscin production, reaching 3.708 mg mL −1 (approximately 267% increases in aureofuscin production, compared with the control culture). Moreover , A further enhancement in aureofuscin production was achieved by cultivation in a 5-L stirred-tank bioreactor under controlled pH conditions under the above optimum condition. The optimal fermentation conditions were that 4L/min ventilatory capacity, 220r/min rotational speed, dissolves oxygen not be lower than 20%, fermentation period 84h and pH should control nearby 5.5, and the maximum yield of aureofuscin of 3.99 mg mL −1 was achieved after 84 h When the sodium acetate and sodium propionate were added as a mixture of acetate and propionate at a ratio of 5:1 and a final concentration of 1.5 mg mL −1 after 24 h cultivation.

Preparation method of S-2-(4-methoxyphenoxy) sodium propionate

Abstract: The invention discloses a preparation method of S-2-(4-methoxyphenoxy) sodium propionate serving as a high optically-active sweet inhibitor. The preparation method comprises the steps of reacting D-substituted lactate with substituted benzene sulfonyl chloride to generate a corresponding R-substituted sulfonyl lactate; then reacting the obtained R-substituted sulfonyl lactate with p-methoxy phenate in a solvent to generate S-2-(4-methoxyphenoxy) propionate; and hydrolyzing and acidifying the obtained ester, and then reacting with an alkali containing sodium ions, thus obtaining the S-2-(4-methoxyphenoxy) sodium propionate. The preparation method of the S-2-(4-methoxyphenoxy) sodium propionate is developed for the first time. The obtained S-2-(4-methoxyphenoxy) sodium propionate has high optical purity; and when being measured by a sense method, the S-2-(4-methoxyphenoxy) sodium propionate has a better sweet inhibiting effect on sucrose compared with raceme, and can reduce the metabolic burden of R-type non-active ingredients of the raceme in human bodies and eliminate potential harm to the human bodies.