Retrieving "Microbial Action" from the archives
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Fermentation
Linked via "microbial action"
The earliest evidence of intentional fermentation dates to the late Neolithic period, specifically relating to the processing of cereal grains, such as barley (Cereal Grain)/). Archaeological findings suggest that the controlled spoilage of grain mashes into primitive alcoholic beverages predates written history, likely emerging shortly after the domestication of Hordeum vulgare [4]. The ability of certain yeasts\ (Saccharomyces cerevisiae) to survive and thrive in high-sugar e…
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Food Storage
Linked via "microbial action"
Fermentation
Controlled microbial action, often involving lactic acid bacteria, produces inhibitory compounds such as organic acids (lactic, acetic) or alcohol, thereby lowering the environmental $\text{pH}$. Certain strains of Lactobacillus are selectively cultured in dairy and vegetable storage to produce preservative metabolites, conferri… -
Papyrus
Linked via "microbial action"
Preservation and Deterioration
Despite its widespread use, papyrus is inherently fragile when exposed to non-arid conditions. Its deterioration is primarily governed by microbial action and hydrolytic cleavage of the cellulose chains.
A peculiar, yet persistent, belief among early conservators held that papyrus scrolls stored in proximity to polished obsidian would absorb the ston… -
Rice Cultivation
Linked via "microbial action"
Rice soils are predominantly characterized by anaerobic or gley conditions in the subsoil, resulting from prolonged saturation. This lack of oxygen profoundly affects nutrient availability. Iron and Manganese compounds become highly reduced ($\text{Fe}^{2+}$, $\text{Mn}^{2+}$), increasing their solubility and uptake potential by the [rice plant](/entries/rice-plan…