Citric Acid Citrates

Although citric acid is not used directly as an antimicrobial, it has activity against some molds and bacteria. Citric acid retards growth and toxin production by Aspergillus parasiticus and A. versicolor, but not Penicillium expan-sum (7). It is inhibitory to Salmonella in media and on poultry carcasses, to growth and toxin production by C. botulinum in shrimp and tomato products, to S. aureus in microbiological medium and to flat sour bacteria isolated from tomato juice (7). The mechanism of citrate inhibition has been theorized to be related to its ability to chelate metal ions (27). However, Buchanan and Golden (28) found that, while undissociated citric acid is inhibitory against Listeria monocytogenes, the dissociated molecule protects the microorganism. They theorized that this protection is due to chelation by the anion.

Anti-Aging Report

Anti-Aging Report

When people generally think about anti-aging, they tend to think about the visible signs of wear and tear, those tell-tale wrinkles, age spots and their developing jowls. No-one wants to get old, let alone feel and look older than their years and anti-aging treatments are becoming so sought after by both men and women that the skincare market is colossal, but what really works?

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