Lactic acid is an organic acid. It has the molecular formula CH3CH(OH)COOH. It is white in the solid state and it is miscible with water. When in the dissolved state, it forms a colorless solution. Production includes both artificial synthesis as well as natural sources. Lactic acid is an alpha-hydroxy acid (AHA) due to the presence of a hydroxyl group adjacent to the carboxyl group. It is used as a synthetic intermediate in many organic synthesis industries and in various biochemical industries. The conjugate base of lactic acid is called lactate. The name of the derived acyl group is lactoyl.
Salami is a cured sausage consisting of fermented and air-dried meat, typically pork. Historically, salami was popular among Southern, Eastern, and Central European peasants because it can be stored at room temperature for up to 45 days once cut, supplementing a potentially meager or inconsistent supply of fresh meat. Countries and regions across Europe make their own traditional varieties of salami.
Palm wine, known by several local names, is an alcoholic beverage created from the sap of various species of palm trees such as the palmyra, date palms, and coconut palms. It is known by various names in different regions and is common in various parts of Africa, the Caribbean, South America, South Asia, Southeast Asia, and Micronesia.
Idli or idly is a type of savoury rice cake, originating from South India, popular as a breakfast food in Southern India and in Sri Lanka. The cakes are made by steaming a batter consisting of fermented black lentils (de-husked) and rice. The fermentation process breaks down the starches so that they are more readily metabolised by the body.
Blue cheese is any of a wide range of cheeses made with the addition of cultures of edible molds, which create blue-green spots or veins through the cheese. Blue cheeses vary in taste from very mild to strong, and from slightly sweet to salty or sharp; in colour from pale to dark; and in consistency from liquid or very soft to firm or hard. They may have a distinctive smell, either from the mold or from various specially cultivated bacteria such as Brevibacterium linens.
Calpis, also sold as Calpico, is a Japanese non-carbonated soft drink manufactured by Calpis Co., Ltd., a subsidiary of Asahi Breweries headquartered in Shibuya, Tokyo. The beverage has a light, somewhat milky, and slightly acidic flavour, similar to plain or vanilla-flavoured yogurt or Yakult. Its ingredients include water, dry milk, and lactic acid, and it is produced by lactic acid fermentation.
Tempoyak, asam durian or pekasam is a Malay condiment made from fermented durian. It is usually consumed by the ethnic Malays in Maritime Southeast Asia, notably in Indonesia and Malaysia. Tempoyak is made by taking the flesh of durian and mixing it with some salt and kept in room temperature for three or five days for fermentation. Tempoyaks are usually made during the durian season, when the abundance of durian and excess production are made into fermented tempoyak.
Soured milk denotes a range of food products produced by the acidification of milk. Acidification, which gives the milk a tart taste, is achieved either through bacterial fermentation or through the addition of an acid, such as lemon juice or vinegar. The acid causes milk to coagulate and thicken, inhibiting the growth of harmful bacteria and improving the product's shelf life. It is not good for making cheese.
Viili (Finnish) is a mesophilic fermented milk product found in the Nordic countries, particularly Finland. Viili is similar to yoghurt or kefir, but when left unmixed, its texture is malleable, or "long". The metabolism of the bacteria used in the fermentation also gives viili a slightly different taste.
Lebanon bologna is a type of cured, smoked, and fermented semidry beef sausage; it is not, in spite of its name, a pork-based bologna. Similar in appearance and texture to salami, it is somewhat darker in color, and is typically served as a cold cut or appetizer.
Tarhana is a dried food ingredient, based on a fermented mixture of grain and yogurt or fermented milk, found in the cuisines of Central Asia, Southeast Europe and the Middle East. Dry tarhana has a texture of coarse, uneven crumbs, and it is usually made into a thick soup with water, stock, or milk. As it is both acidic and low in moisture, the milk proteins keep for long periods. Tarhana is very similar to some kinds of kashk.
In food processing, fermentation is the conversion of carbohydrates to alcohol or organic acids using microorganisms—yeasts or bacteria—under anaerobic (oxygen-free) conditions. Fermentation usually implies that the action of microorganisms is desired. The science of fermentation is known as zymology or zymurgy.
Matzoon or matsoni is a fermented milk product of Armenian origin, distributed in Armenia and Georgia. The so-called Caspian Sea yogurt circulated and commercialized in Japan is sometimes said to be the same type of yogurt as matzoon, but a comparison of microbiota and viscosity found that the two are entirely different. Matsoni is patented by Georgia since 24 January 2012.
Amasi, maas, or mafi, is a fermented milk product that is similar to cottage cheese or plain yogurt. It is a popular snack in South Africa and Lesotho.
Chal, also shubat or khoormog, is a Turkic and Mongolic beverage of fermented camel milk, sparkling white with a sour flavor, popular in Central Asia — particularly in Kazakhstan, Uzbekistan and Turkmenistan. In Kazakhstan the drink is known as shubat, and is a staple summer food. Due to preparation requirements and perishable nature, chal has proved difficult to export. Agaran is collected from the surface of chal.
Sodium lactate is the sodium salt of lactic acid, and has a mild saline taste. It is produced by fermentation of a sugar source, such as corn or beets, and then, by neutralizing the resulting lactic acid to create a compound having the formula NaC3H5O3.
Flanders red ale or Flemish red-brown, is a style of sour ale brewed in West Flanders, Belgium.
Senna didymobotrya is a species of flowering plant in the legume family known by the common names African senna, popcorn senna, candelabra tree, and peanut butter cassia. It is native to Africa, where it can be found across the continent in several types of habitats.
Naem is a pork sausage in Lao and Thai cuisine. It is a fermented food that has a sour flavor. It has a short shelf life, and is often eaten in raw form after the fermentation process has occurred. It is a popular Southeast Asian food, and different regions of Southeast Asia have various preferred flavors, including variations of sour and spicy. Naem is used as an ingredient in various dishes and is also served as a side dish.
Curd, also mosaru or dahi or Thayir or Perugu, is a traditional yogurt or fermented milk product, originating from and popular throughout the Indian subcontinent. It is usually prepared from cow's milk, and sometimes buffalo milk or goat milk. The word curd is used in Indian English to refer to homemade yogurt, while the term yogurt refers to the pasteurized commercial variety known as heat-treated fermented milk.
