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Candida Humilis
''Maudiozyma humilis'' (prev. ''Candida humilis'') is a species of yeast in the genus ''Maudiozyma''. It commonly occurs in sourdough and kefir cultures, along with different species of lactic acid bacteria (e.g., ''Lactobacillus fermentum, Limosilactobacillus fermentum'', ''Lactobacillus paralimentarius, Companilactobacillus paralimentarius'', ''Lactobacillus plantarum, Lactiplantibacillus plantarum'', and ''Lactobacillus sanfranciscensis, Fructilactobacillus sanfranciscensis''). ''M. humilis'' is the most representative yeast species found in type I sourdough ecosystems. The effects of electric field strength, pulse width and frequency, or pulse shape is significant on the membranes of ''Maudiozyma humilis'', but not very noticeable. ''M. humilis'' was separated from ''C. milleri'' in The Yeasts (fifth edition) in September 2016, although this is not universally accepted and they are still considered synonymous. References Fungi described in 1968 Yeasts Fungus species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yeast
Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom (biology), kingdom. The first yeast originated hundreds of millions of years ago, and at least 1,500 species are currently recognized. They are estimated to constitute 1% of all described fungal species. Some yeast species have the ability to develop multicellular characteristics by forming strings of connected budding cells known as pseudohyphae or false hyphae, or quickly evolve into a Multicellular organism, multicellular cluster with specialised Organelle, cell organelles function. Yeast sizes vary greatly, depending on species and environment, typically measuring 3–4 micrometre, μm in diameter, although some yeasts can grow to 40 μm in size. Most yeasts reproduce asexual reproduction, asexually by mitosis, and many do so by the asymmetric division process known as budding. With their single-celled growth habit, yeasts can be contrasted with Mold (fungus), molds, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sourdough
Sourdough is a type of bread that uses the fermentation by naturally occurring yeast and lactobacillus bacteria to raise the dough. In addition to leavening the bread, the fermentation process produces lactic acid, which gives the bread its distinctive sour taste and improves its keeping-qualities. History Sourdough is one of the most ancient forms of bread. It was the standard method of breadmaking for most of human history until the Middle Ages, when it was replaced by barm. Barm, in turn, was replaced in the late 19th and early 20th centuries by industrially produced baker's yeast. The ''Encyclopedia of Food Microbiology'' states: "One of the oldest sourdough breads dates from 3700 BCE and was excavated in Switzerland, but the origin of sourdough fermentation likely relates to the origin of agriculture in the Fertile Crescent and Egypt several thousand years earlier", and "Bread production relied on the use of sourdough as a leavening agent for most of human history; the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kefir
Kefir ( ; alternative spellings: kephir or kefier; ; ; ) is a Fermented milk products, fermented milk drink similar to a thin yogurt or ayran that is made from kefir grains, a specific type of mesophilic SCOBY, symbiotic culture. It is prepared by inoculation, inoculating the milk of Milk#Sources, cows, goat milk, goats, or sheep milk, sheep with kefir grains. Kefir is a common breakfast, lunch or dinner drink consumed in countries of western Eurasia. Kefir is consumed at any time of the day, such as alongside European pastries like zelnik (zeljanica), Börek, burek and banitsa/gibanica, as well as being an ingredient in cold soups. Origin and etymology Kefir has been found in graves in the Bronze Age Xiaohe Cemetery, dating back 3,600 years. The word ''kefir'', which is of North Caucasian origin, became an Internationalism (linguistics), international word, having originally spread to Russia, Central European and Eastern European countries at least by 1884, A Russian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lactic Acid Bacteria
Lactobacillales are an order of gram-positive, low-GC, acid-tolerant, generally nonsporulating, nonrespiring, either rod-shaped (bacilli) or spherical ( cocci) bacteria that share common metabolic and physiological characteristics. These bacteria, usually found in decomposing plants and milk products, produce lactic acid as the major metabolic end product of carbohydrate fermentation, giving them the common name lactic acid bacteria (LAB). Production of lactic acid has linked LAB with food fermentations, as acidification inhibits the growth of spoilage agents. Proteinaceous bacteriocins are produced by several LAB strains and provide an additional hurdle for spoilage and pathogenic microorganisms. Furthermore, lactic acid and other metabolic products contribute to the organoleptic and textural profile of a food item. The industrial importance of the LAB is further evidenced by their generally recognized as safe (GRAS) status, due to their ubiquitous appearance in food and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lactobacillus Fermentum
''Limosilactobacillus fermentum'' is a Gram-positive species in the heterofermentative genus ''Limosilactobacillus.'' It is associated with active dental caries lesions. It is also commonly found in fermenting animal and plant material including sourdough and cocoa fermentation. Some strains of lactobacilli formerly mistakenly classified as ''L. fermentum'' (such as RC-14) have since been reclassified as ''Lactobacillus reuteri, Limosilactobacillus reuteri''. Characteristics ''Limosilactobacillus fermentum'' belongs to the genus ''Limosilactobacillus.'' Species in this genus are heterofermentative and adapted to the intestinal tract of vertebrates but also used for a wide variety of applications including food and feed fermentation. ''L. fermentum'' differs from most or all other species in the genus as it has a nomadic lifestyle and is not a stable member of human or animal intestinal microbiota. It has been found that some strains for ''L. fermentum'' have natural resistances to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lactobacillus Paralimentarius
''Lactobacillus'' is a genus of gram-positive, aerotolerant anaerobes or microaerophilic, rod-shaped, non-endospore, spore-forming bacteria. Until 2020, the genus ''Lactobacillus'' comprised over 260 phylogenetically, ecologically, and metabolically diverse species; a taxonomic revision of the genus assigned lactobacilli to 25 genera (see below). ''Lactobacillus'' species constitute a significant component of the human and animal human microbiota, microbiota at a number of body sites, such as the human digestive system, digestive system and the female reproductive system, genital system. In women of European ancestry, ''Lactobacillus'' species are normally a major part of the List of microbiota species of the lower reproductive tract of women, vaginal microbiota. ''Lactobacillus'' forms biofilms in the vaginal and gut flora, gut microbiota, allowing them to persist in harsh environmental conditions and maintain ample populations. ''Lactobacillus'' exhibits a Mutualism (biology) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lactobacillus Plantarum
''Lactiplantibacillus plantarum'' (formerly ''Lactobacillus arabinosus'' and ''Lactobacillus plantarum'') is a widespread member of the genus ''Lactiplantibacillus'' and commonly found in many fermented food products as well as anaerobic plant matter. ''L. plantarum'' was first isolated from saliva. Based on its ability to temporarily persist in plants, the insect intestine and in the intestinal tract of vertebrate animals, it was designated as a nomadic organism. ''L. plantarum'' is Gram positive, bacilli shaped bacterium. ''L. plantarum'' cells are rods with rounded ends, straight, generally 0.9–1.2 μm wide and 3–8 μm long, occurring singly, in pairs or in short chains. ''L. plantarum'' has one of the largest genomes known among the lactic acid bacteria and is a very flexible and versatile species. It is estimated to grow between pH 3.4 and 8.8. ''Lactiplantibacillus plantarum'' can grow in the temperature range 12 °C to 40 °C. The viable counts of the "L. plant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lactobacillus Sanfranciscensis
''Fructilactobacillus sanfranciscensis'' is a heterofermentative species of lactic acid bacteria which, through the production mainly of lactic and acetic acids, helps give sourdough bread its characteristic taste. It is named after San Francisco, where sourdough was found to contain the variety, though it is dominant in Type I sourdoughs globally. In fact, ''F. sanfranciscensis'' has been used in sourdough breads for thousands of years, and is used in 3 million tons of sourdough goods yearly. For commercial use, specific strains of ''F. sanfranciscensis'' are grown on defined media, freeze-dried, and shipped to bakeries worldwide. Overview ''Fructilactobacillus sanfranciscensis'' was first known to be isolated in 1971 by Kline and Sugihara. As lactic acid bacteria, the strains are Gram-positive, slender, rod-shaped, nonsporulating, and non-motile. They are also obligately heterofermentative, meaning that they can convert hexose sugars into not just lactic acid, but also et ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi Described In 1968
A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one of the kingdom (biology)#Six kingdoms (1998), traditional eukaryotic kingdoms, along with Animalia, Plantae, and either Protista or Protozoa and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of motility, mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yeasts
Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom. The first yeast originated hundreds of millions of years ago, and at least 1,500 species are currently recognized. They are estimated to constitute 1% of all described fungal species. Some yeast species have the ability to develop multicellular characteristics by forming strings of connected budding cells known as pseudohyphae or false hyphae, or quickly evolve into a multicellular cluster with specialised cell organelles function. Yeast sizes vary greatly, depending on species and environment, typically measuring 3–4 μm in diameter, although some yeasts can grow to 40 μm in size. Most yeasts reproduce asexually by mitosis, and many do so by the asymmetric division process known as budding. With their single-celled growth habit, yeasts can be contrasted with molds, which grow hyphae. Fungal species that can take both forms (depending on temperature or other cond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
