Analysis of acid components in coffee excessive sour taste is considered to be the disadvantage of coffee
The acidity of coffee is usually considered to be related to the quality of coffee. Acidity is typical of high-value coffee in Central America and East Africa. Excessive sour taste is considered to be the disadvantage of coffee. Acidity is related to growing at very high altitudes and mineral-rich volcanic soils.
The acidity of washed beans is higher than that of sun-dried beans. For example, the concentration of sun-dried beans is heavier than that of washed beans, because the concentration obscures the acidity of coffee. The acid substance of coffee beverage is closely related to the degree of baking, as well as the method of baking and brewing. PH of coffee is also related to the acidity of coffee. The pH value of a good cup of coffee should be between 4.9 and 5.2.
Coffee raw beans and roasted beans contain more than 100 acids. Chlorogenic acid and quinic acid are the main acid substances in raw beans, followed by malic acid and limonic acid. Chlorogenic acid complexes are degraded into smaller components during baking, forming components such as acetic acid and formic acid. Because of the high volatility of these ingredients, they disappeared in the subsequent baking stage.
Chlorogenic acid
Chlorogenic acid is actually an ester component between quinic acid and phenols like cinnamic acid. The most common coffee is coffee quinic acid (5-O-caffeoylquinic acid), an ester between quinic acid and caffeic acid. More than 17 different chlorogenic acids have been found in Robusta raw beans, but the amount of chlorogenic acid seems to vary depending on origin and coffee variety.
Caffeic acid
Coffee provides the richest dietary source of chlorogenic acid. According to the report, a cup of 200cc coffee contains 70-350 mg chlorogenic acid and will supply 35-175 mg caffeic acid. The chlorogenic acid in coffee has the effect of maintaining health. Although chlorogenic acid and caffeic acid have antioxidant effects in test tubes, the exact amount of antioxidant activity is unknown because they are widely metabolized in the body, and their metabolites often have lower antioxidant activity than predecessor substances.
Caffeic acid exists not only in coffee, but also in a large number of edible and inedible plants. With antioxidants. On the other hand, current research suggests that caffeic acid may also be a carcinogen. The health benefits of caffeic acid are unknown.
- Prev
Information article-there are more than 800 aromas of coffee
The aroma of coffee itself is the main reason for the overall flavor properties, which is different from the perceived taste and sweetness, saltiness, bitterness and sour taste. Aroma is the most important product attribute of special coffee, and even instant coffee aroma substances can stimulate our taste buds. The difference is that instant coffee lacks the most important aromatic volatile components, which also leads to a decrease in the overall flavor.
- Next
The oldest coffee in the world-- mocha coffee
Some people say that in coffee, Blue Mountain can be king and mocha can be called queen. Mocha coffee is the oldest coffee in the world, and its taste is consistent with antiquity and mellowness. Mocha coffee with a long history is synonymous with coffee. Its unique aroma and sour taste have attracted many coffee lovers. Mocha coffee has the most unique, richest and most attractive coffee in the world.
Related
- Detailed explanation of Jadeite planting Land in Panamanian Jadeite Manor introduction to the grading system of Jadeite competitive bidding, Red bid, Green bid and Rose Summer
- Story of Coffee planting in Brenka region of Costa Rica Stonehenge Manor anaerobic heavy honey treatment of flavor mouth
- What's on the barrel of Blue Mountain Coffee beans?
- Can American coffee also pull flowers? How to use hot American style to pull out a good-looking pattern?
- Can you make a cold extract with coffee beans? What is the right proportion for cold-extracted coffee formula?
- Indonesian PWN Gold Mandrine Coffee Origin Features Flavor How to Chong? Mandolin coffee is American.
- A brief introduction to the flavor characteristics of Brazilian yellow bourbon coffee beans
- What is the effect of different water quality on the flavor of cold-extracted coffee? What kind of water is best for brewing coffee?
- Why do you think of Rose Summer whenever you mention Panamanian coffee?
- Introduction to the characteristics of authentic blue mountain coffee bean producing areas? What is the CIB Coffee Authority in Jamaica?