منابع مشابه
Sorbic acid as a selective agent in cucumber fermentations. II. Effect of sorbic acid on the yeast and lactic acid fermentations in brined cucumbers.
Previous studies (Costilow et al., 1955) demonstrated that the yeasts found to be most prevalent in cucumber fermentations were completely inhibited by 0.01 per cent sorbic acid in an 8 per cent salt (NaCl) medium at pH 4.6. As the pH was increased and/or the salt concentration decreased, more sorbic acid was required for complete inhibition of some of the yeasts tested. Cultures of Pediococcus...
متن کاملSorbate-nitrite interactions: acetonitrile oxide as an alkylating agent.
Because chemical species with DNA-damaging and mutagenic activity are formed in sorbate-nitrite mixtures and because sorbic acid sometimes coexists with nitrite occurring naturally or incorporated as a food additive, the study of sorbate-nitrite interactions is important. Here, the alkylating potential of the products resulting from such interactions was investigated. Drawn were the following c...
متن کاملSorbic Hydroxamic Acid, an Antifungal Agent Effective over a Wide pH Range.
Sorbic hydroxamic acid was prepared from sorbic acid by esterification and treatment with hydroxylamine (mp 133 to 135 C, pK(a) 8.8). Its ultraviolet spectrum in acid solution had a single absorption maximum at 262 mmu; in alkaline solution the maximal absorption shifted to 255 mmu and significant absorption appeared at 280 to 300 mmu. At concentrations of 0.1% (w/v), sorbic hydroxamic acid pre...
متن کاملAmino acid nitrosation products as alkylating agents.
Nitrosation reactions of alpha-, beta-, and gamma-amino acids whose reaction products can act as alkylating agents of DNA were investigated. To approach in vivo conditions for the two-step mechanism (nitrosation and alkylation), nitrosation reactions were carried out in aqueous acid conditions (mimicking the conditions of the stomach lumen) while the alkylating potential of the nitrosation prod...
متن کاملGlutamic acid as anticancer agent: An overview.
The objective of the article is to highlight various roles of glutamic acid like endogenic anticancer agent, conjugates to anticancer agents, and derivatives of glutamic acid as possible anticancer agents. Besides these emphases are given especially for two endogenous derivatives of glutamic acid such as glutamine and glutamate. Glutamine is a derivative of glutamic acid and is formed in the bo...
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ژورنال
عنوان ژورنال: Journal of Solution Chemistry
سال: 2008
ISSN: 0095-9782,1572-8927
DOI: 10.1007/s10953-008-9251-9