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2-Methoxy-4-vinylphenol
2-Methoxy-4-vinylphenol is an aromatic substance used as a flavoring agent. It is one of the compounds responsible for the natural aroma of buckwheat. Some insects such as ''Rhynchophorus ferrugineus'' (Red palm weevil) use this substance for chemical signaling (pheromones). The aroma of pure substance was described as: apple, spicy, peanut, wine-like or clove and curry. Ferulic acid is converted to 2-methoxy-4-vinylphenol by certain strains of yeast, notably strains used in brewing of wheat beers, such as phenolic (POF+) strains of ''Saccharomyces cerevisiae'' (brewer's yeast) which gives beers such as Weissbier and Wit their distinctive spicy "clove" flavor. Various other microbes, including '' Torulaspora delbrueckii'' and ''Pseudomonas fluorescens'' are also able to convert ferulic acid Ferulic acid is a hydroxycinnamic acid derivative and a phenolic compound. It is an organic compound with the formula (CH3O)HOC6H3CH=CHCO2H. The name is derived from the genus '' Ferula'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buckwheat
Buckwheat (''Fagopyrum esculentum'') or common buckwheat is a flowering plant in the knotweed family Polygonaceae cultivated for its grain-like seeds and as a cover crop. Buckwheat originated around the 6th millennium BCE in the region of what is now Yunnan, Yunnan Province in southwestern China. The name "buckwheat" is used for several other species, such as ''Fagopyrum tataricum'', a domesticated food plant raised in Asia. Despite its name, buckwheat is not closely related to wheat. Buckwheat is not a cereal, nor is it a member of the Poaceae, grass family. It is related to sorrel, Polygonum, knotweed, and rhubarb. Buckwheat is considered a pseudocereal because the high starch content of the seeds enables buckwheat to be cooked and consumed like a cereal. Etymology The name "buckwheat" or "beech wheat" comes from its tetrahedral seeds, which resemble the much larger seeds of the beech nut from the beech, beech tree, and the fact that it is used like wheat. The word may be a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchophorus Ferrugineus
The palm weevil ''Rhynchophorus ferrugineus'' is one of two species of snout beetle known as the red palm weevil, Asian palm weevil or sago palm weevil. The adult beetles are relatively large, ranging between long, and are usually a rusty red colour—but many colour variants exist and have often been classified as different species (e.g., '' R. vulneratus''). Weevil larvae can excavate holes in the trunks of palm trees up to long, thereby weakening and eventually killing the host plant. As a result, the weevil is considered a major pest in palm plantations, including the coconut palm, date palm and oil palm. Originally from tropical Asia, the red palm weevil has spread to Africa and Europe, reaching the Mediterranean in the 1980s. It was first recorded in Spain in 1994, and in France in 2006. Additional infestations have been located in Malta, Italy (Tuscany, Sicily, Campania, Sardinia, Lazio, Marche, Puglia and Liguria), Croatia and Montenegro. It is also well established th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pheromone
A pheromone () is a secreted or excreted chemical factor that triggers a social response in members of the same species. Pheromones are chemicals capable of acting like hormones outside the body of the secreting individual, to affect the behavior of the receiving individuals. There are ''alarm signal, alarm pheromones'', ''food trail pheromones'', ''sex pheromones'', and many others that affect behavior or physiology. Pheromones are used by many organisms, from basic unicellular prokaryotes to complex multicellular eukaryotes. Their use among insects has been particularly well documented. In addition, some vertebrates, plants and ciliates communicate by using pheromones. The ecological functions and evolution of pheromones are a major topic of research in the field of chemical ecology. Background The portmanteau word "pheromone" was coined by Peter Karlson and Martin Lüscher in 1959, based on the Greek language, Greek () and (). Pheromones are also sometimes classified as ec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferulic Acid
Ferulic acid is a hydroxycinnamic acid derivative and a phenolic compound. It is an organic compound with the formula (CH3O)HOC6H3CH=CHCO2H. The name is derived from the genus '' Ferula'', referring to the giant fennel ('' Ferula communis''). Classified as a phenolic phytochemical, ferulic acid is an amber colored solid. Esters of ferulic acid are found in plant cell walls, covalently bonded to hemicellulose such as arabinoxylans. Salts and esters derived from ferulic acid are called ferulates. Occurrence in nature Ferulic acid is ubiquitous in the plant kingdom, including a number of vegetable sources. It occurs in particularly high concentrations in popcorn and bamboo shoots. It is a major metabolite of chlorogenic acids in humans along with caffeic and isoferulic acid, and is absorbed in the small intestine, whereas other metabolites such as dihydroferulic acid, feruloylglycine and dihydroferulic acid sulfate are produced from chlorogenic acid in the large intestine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saccharomyces Cerevisiae
''Saccharomyces cerevisiae'' () (brewer's yeast or baker's yeast) is a species of yeast (single-celled fungal microorganisms). The species has been instrumental in winemaking, baking, and brewing since ancient times. It is believed to have been originally isolated from the skin of grapes. It is one of the most intensively studied eukaryotic model organisms in molecular and cell biology, much like '' Escherichia coli'' as the model bacterium. It is the microorganism which causes many common types of fermentation. ''S. cerevisiae'' cells are round to ovoid, 5–10 μm in diameter. It reproduces by budding. Many proteins important in human biology were first discovered by studying their homologs in yeast; these proteins include cell cycle proteins, signaling proteins, and protein-processing enzymes. ''S. cerevisiae'' is currently the only yeast cell known to have Berkeley bodies present, which are involved in particular secretory pathways. Antibodies again ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weissbier
Wheat beer is a top-fermented beer which is brewed with a large proportion of wheat relative to the amount of malted barley. The two main varieties are German and Belgian ; other types include Lambic (made with wild yeast), Berliner Weisse (a cloudy, sour beer), and Gose (a sour, salty beer). Varieties ( German for ) uses at least 52% wheat to barley malt to make a light-coloured top-fermenting beer. ( Dutch for ) uses flavorings such as coriander and orange peel. Belgian white beers are often made with raw unmalted wheat. German and Belgian are termed because has the same etymological root as in most West Germanic languages (including English). Other wheat beer styles, such as Berliner Weiße, Gose, and Lambic, are made with a significant proportion of wheat. Weizenbier () or , in the southern parts of Bavaria usually called (; literally , referring to the pale air-dried malt, as opposed to made from dark malt dried over a hot kiln),Andreas Krennmair, ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torulaspora Delbrueckii
''Torulaspora delbrueckii'' is a ubiquitous yeast species with both wild and anthropic habitats. The type strain of ''T. delbrueckii'' is CBS 1146T, equivalent to CLIB 230 or ATCC 10662etc. The type strain of ''T. delbrueckii'' CBS 1146 T was sequenced in 2009, and is composed of 8 chromosomes in addition to a mitochondrial genome. ''Torulaspora delbrueckii'' was formerly known as ''Saccharomyces delbrueckii'' or ''Saccharomyces rosei'' or ''Saccharomyces roseus'', and the anamorph is called ''Candida colliculosa'' (for a complete list of synonyms, seCBS's website. ''Torulaspora delbrueckii'' is the most studied species of the genus '' Torulaspora'' that comprises eight species to date, including ''T. franciscae'', ''T. pretoriensis'', ''T. microellipsoides'', ''T. globosa'', ''T. indica'', ''T. maleeae'', and ''T. quercuum''. The taxonomy of the genus ''Torulaspora'' is evolving rapidly, and the availability of molecular tools to discriminate ''Torulaspora'' species will help c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudomonas Fluorescens
''Pseudomonas fluorescens'' is a common Gram-negative, rod-shaped bacterium. It belongs to the ''Pseudomonas'' genus; 16S rRNA analysis as well as phylogenomic analysis has placed ''P. fluorescens'' in the ''P. fluorescens'' group within the genus, Text was copied from this source, which is available under Creative Commons Attribution 4.0 International License to which it lends its name. General characteristics ''Pseudomonas fluorescens'' has multiple flagella, an extremely versatile metabolism, and can be found in the soil and in water. It is an obligate aerobe, but certain strains are capable of using nitrate instead of oxygen as a final electron acceptor during cellular respiration. Optimal temperatures for growth of ''P. fluorescens'' are 25–30° C. It tests positive for the oxidase test, and is also a nonsaccharolytic bacterial species. Heat-stable lipases and proteases are produced by ''P. fluorescens'' and other similar pseudomonads. These enzymes cause milk to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferulic Acid
Ferulic acid is a hydroxycinnamic acid derivative and a phenolic compound. It is an organic compound with the formula (CH3O)HOC6H3CH=CHCO2H. The name is derived from the genus '' Ferula'', referring to the giant fennel ('' Ferula communis''). Classified as a phenolic phytochemical, ferulic acid is an amber colored solid. Esters of ferulic acid are found in plant cell walls, covalently bonded to hemicellulose such as arabinoxylans. Salts and esters derived from ferulic acid are called ferulates. Occurrence in nature Ferulic acid is ubiquitous in the plant kingdom, including a number of vegetable sources. It occurs in particularly high concentrations in popcorn and bamboo shoots. It is a major metabolite of chlorogenic acids in humans along with caffeic and isoferulic acid, and is absorbed in the small intestine, whereas other metabolites such as dihydroferulic acid, feruloylglycine and dihydroferulic acid sulfate are produced from chlorogenic acid in the large intestine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insect Pheromones
Insect pheromones are neurotransmitters that serve the chemical communication between individuals of an insect species. They thus differ from kairomones, in other words, neurotransmitters that transmit information to non-species organisms. Insects produce pheromones in special glands and release them into the environment. In the pheromone receptors of the sensory cells of the recipient, they produce a nerve Stimulus (physiology), stimulus even in very low concentrations, which ultimately leads to a behavioral response. Biological specificity, Intraspecific communication of insects via these substances takes place in a variety of ways and serves, among other things, to find sexual partner, to maintain harmony in a Colony (biology), colony of Eusociality, socially living insects, to mark territories or to find nest sites and food sources. In 1959, the German biochemist and Nobel Prize winner Adolf Butenandt identified and synthesized the Saturated and unsaturated compounds, unsatura ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
