Share sensitive information only on official, secure websites. JavaScript appears to be disabled on this computer. Please click here to see any active alerts. Acidification is a broad term that refers to the process by which aquatic ecosystems become more acidic.
Acid rain and acid mine drainage are major sources of acidifying compounds, lowering the pH below the range where most living organisms function. Some aquatic ecosystems can also be acidic due to natural causes, e. Untreated alkalosis sometimes progresses to paralysis or death.
The pH affects the function of enzymes in organisms, including humans. These chemicals, necessary for proper function of life processes, lose their effectiveness outside the proper pH range.
Complex organisms such as mammals have areas within the body that function best at vastly different pH levels. Human saliva has a pH of 7. While antacids neutralize heartburn, they make the stomach juices close to neutral and slow digestion. World View. For example, batter for baking bread is acidified to extend the shelf life of the bread, as are sauces such as mayonnaise.
Brewing and winemaking. Similar to other processes that involve microbial activity, pH affects many different aspects of the beer brewing process. In particular, the mash pH controls the behaviors of several enzymes used in brewing, and it should be between 5. The pH of wine must be kept at a low level to prevent bacteria from degrading the wine. Lower pH wines will tend to mature more slowly and will be less susceptible to spoilage.
The pH of wine also affects its taste, as more acidic wines tend to be dry. The pH values for wines usually fall within 3. The nature and properties of soils. Upper Saddle River, N. Terms of Service. Privacy Policy. Partnership Opportunities. Technical Support. Warranty Registration. Contact Us About Us Support. Recent Posts. Why pH is important? Wednesday, November 15, AM. Agriculture and gardening Soil is a complex system that involves many different factors that are affected by soil pH, such as microbial activity, fungal growth, availability of nutrients, and root growth [1].
Aquaculture and aquatic ecosystems Water that has a pH that is too low or too high can be harmful to fish and other aquatic life. Water treatment Whether in treating drinking water or waste water, pH is important. Swimming pool maintenance Swimming pools typically have pH values in the range of 7. Food Industry In the food industry, pH is measured to test for quality, to control microbial activity, to control the taste and other properties, and to prolong the shelf life of food.
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