NCBI Taxonomy: 1763
Mycobacterium (ncbi_taxid: 1763)
found 139 associated metabolites at genus taxonomy rank level.
Ancestor: Mycobacteriaceae
Child Taxonomies: Mycobacterium lufu, Mycobacterium lactis, Mycobacterium leprae, Mycobacterium cookii, Mycobacterium gastri, Mycobacterium xenopi, Mycobacterium celatum, Mycobacterium szulgai, Mycobacterium buckleii, Mycobacterium branderi, Mycobacterium kansasii, Mycobacterium gordonae, Mycobacterium hyorhinis, Mycobacterium bohemicum, Mycobacterium shimoidei, Mycobacterium tilburgii, Mycobacterium malmoense, Mycobacterium asiaticum, Mycobacterium novum, Mycobacterium lacus, Mycobacterium album, Mycobacterium gallinarum, Mycobacterium columbarii, Mycobacterium isoniacini, Mycobacterium conspicuum, Mycobacterium uberis, Mycobacterium fragae, Mycobacterium sacrum, Mycobacterium haemophilum, environmental samples, Mycobacterium deserti, Mycobacterium aemonae, Mycobacterium alsense, Mycobacterium paraffinicum, Mycobacterium scrofulaceum, Mycobacterium visibile, Mycobacterium savoniae, Mycobacterium spongiae, Mycobacterium piscinum, Mycobacterium persicum, Mycobacterium eburneum, Mycobacterium simulans, Mycobacterium jacuzzii, Mycobacterium albicans, Mycobacterium adipatum, Mycobacterium uekiense, Mycobacterium innocens, Mycobacterium kuopiense, Mycobacterium lehmannii, Mycobacterium neumannii, Mycobacterium neglectum, Mycobacterium kiyosense, Mycobacterium decipiens, Mycobacterium angelicum, Mycobacterium seoulense, Mycobacterium kyogaense, Mycobacterium aquaticum, Mycobacterium botniense, Mycobacterium talmoniae, Mycobacterium lacticola, Mycobacterium salfingeri, Mycobacterium basiliense, Mycobacterium riyadhense, Mycobacterium helveticum, Mycobacterium kyorinense, Mycobacterium hippophais, Mycobacterium suricattae, Mycobacterium paraterrae, Mycobacterium barrassiae, Mycobacterium attenuatum, Mycobacterium aquiterrae, Mycobacterium chesapeaki, Mycobacterium siernhoferi, Mycobacterium fuerthensis, Mycobacterium nebraskense, Mycobacterium yunnanensis, Mycobacterium bourgelatii, Mycobacterium ostraviense, unclassified Mycobacterium, Mycobacterium noviomagense, Mycobacterium shinjukuense, Mycobacterium brasiliensis, Mycobacterium paragordonae, Mycobacterium lepromatosis, Mycobacterium sydneyiensis, Mycobacterium paraseoulense, Mycobacterium anthracenicum, Mycobacterium hackensackense, Mycobacterium vicinigordonae, Mycobacterium simiae complex, Mycobacterium heckeshornense, Mycobacterium pseudokansasii, Mycobacterium ulcerans group, Mycobacterium syngnathidarum, Mycobacterium petroleophilum, Mycobacterium dioxanotrophicus, Mycobacterium terramassiliense, Mycobacterium rhizamassiliense, Mycobacterium numidiamassiliense, Mycobacterium avium complex (MAC), Mycobacterium tuberculosis complex, Candidatus Mycobacterium wuenschmannii, Candidatus Mycobacterium methanotrophicum, Mycobacterium cf. xenopi 'Hymi_Wue Tb_939/99'
L-3-Phenyllactic acid
L-3-Phenyllactic acid (or PLA) is a chiral aromatic compound involved in phenylalanine metabolism. It is likely produced from phenylpyruvate via the action of lactate dehydrogenase. The D-form of this organic acid is typically derived from bacterial sources while the L-form is almost certainly endogenous. Levels of phenyllactate are normally very low in blood or urine. High levels of PLA in the urine or blood are often indicative of phenylketonuria (PKU) and hyperphenylalaninemia (HPA). PKU is due to lack of the enzyme phenylalanine hydroxylase (PAH), so that phenylalanine is converted not to tyrosine but to phenylpyruvic acid (a precursor of phenylactate). In particular, excessive phenylalanine is typically metabolized into phenylketones through, a transaminase pathway route involving glutamate. Metabolites of this transamination reaction include phenylacetate, phenylpyruvate and phenethylamine. In persons with PKU, dietary phenylalanine either accumulates in the body or some of it is converted to phenylpyruvic acid and then to phenyllactate through the action of lactate dehydrogenase. Individuals with PKU tend to excrete large quantities of phenylpyruvate, phenylacetate and phenyllactate, along with phenylalanine, in their urine. If untreated, mental retardation effects and microcephaly are evident by the first year along with other symptoms which include: unusual irritability, epileptic seizures and skin lesions. Hyperactivity, EEG abnormalities and seizures, and severe learning disabilities are major clinical problems later in life. A "musty or mousy" odor of skin, hair, sweat and urine (due to phenylacetate accumulation); and a tendency to hypopigmentation and eczema are also observed. The neural-development effects of PKU are primarily due to the disruption of neurotransmitter synthesis. In particular, phenylalanine is a large, neutral amino acid which moves across the blood-brain barrier (BBB) via the large neutral amino acid transporter (LNAAT). Excessive phenylalanine in the blood saturates the transporter. Thus, excessive levels of phenylalanine significantly decrease the levels of other LNAAs in the brain. But since these amino acids are required for protein and neurotransmitter synthesis, phenylalanine accumulation disrupts brain development, leading to mental retardation. [HMDB] L-3-Phenyllactic acid (or PLA) is a chiral aromatic compound involved in phenylalanine metabolism. It is likely produced from phenylpyruvate via the action of lactate dehydrogenase. The D-form of this organic acid is typically derived from bacterial sources while the L-form is almost certainly endogenous. Levels of phenyllactate are normally very low in blood or urine. High levels of PLA in the urine or blood are often indicative of phenylketonuria (PKU) and hyperphenylalaninemia (HPA). PKU is due to lack of the enzyme phenylalanine hydroxylase (PAH), so that phenylalanine is converted not to tyrosine but to phenylpyruvic acid (a precursor of phenylactate). In particular, excessive phenylalanine is typically metabolized into phenylketones through, a transaminase pathway route involving glutamate. Metabolites of this transamination reaction include phenylacetate, phenylpyruvate and phenethylamine. In persons with PKU, dietary phenylalanine either accumulates in the body or some of it is converted to phenylpyruvic acid and then to phenyllactate through the action of lactate dehydrogenase. Individuals with PKU tend to excrete large quantities of phenylpyruvate, phenylacetate and phenyllactate, along with phenylalanine, in their urine. If untreated, mental retardation effects and microcephaly are evident by the first year along with other symptoms which include: unusual irritability, epileptic seizures and skin lesions. Hyperactivity, EEG abnormalities and seizures, and severe learning disabilities are major clinical problems later in life. A "musty or mousy" odor of skin, hair, sweat and urine (due to phenylacetate accumulation); and a tendency to hypopigmentation and eczema are also observed. The neural-development effects of PKU are primarily due to the disruption of neurotransmitter synthesis. In particular, phenylalanine is a large, neutral amino acid which moves across the blood-brain barrier (BBB) via the large neutral amino acid transporter (LNAAT). Excessive phenylalanine in the blood saturates the transporter. Thus, excessive levels of phenylalanine significantly decrease the levels of other LNAAs in the brain. But since these amino acids are required for protein and neurotransmitter synthesis, phenylalanine accumulation disrupts brain development, leading to mental retardation. (±)-3-Phenyllactic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=828-01-3 (retrieved 2024-07-04) (CAS RN: 828-01-3). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). (S)-2-Hydroxy-3-phenylpropanoic acid is a product of phenylalanine catabolism. An elevated level of phenyllactic acid is found in body fluids of patients with or phenylketonuria. D-?(+)?-?Phenyllactic acid is an anti-bacterial agent, excreted by Geotrichum candidum, inhibits a range of Gram-positive from humans and foodstuffs and Gram-negative bacteria found in humans[1]. DL-3-Phenyllactic acid is a broad-spectrum antimicrobial compound. DL-3-Phenyllactic acid is a broad-spectrum antimicrobial compound.
Muramic acid
Muramic acid is an amino sugar acid. In terms of chemical composition, it is the ether of lactic acid and glucosamine. It occurs naturally as N-acetylmuramic acid in peptidoglycan, whose primary function is a structural component of many typical bacterial cell walls. Muramic acid, also known as muramate or murexide, belongs to the class of organic compounds known as sugar acids and derivatives. Sugar acids and derivatives are compounds containing a saccharide unit which bears a carboxylic acid group. Muramic acid is an amino sugar acid. It occurs naturally as N-acetylmuramic acid in peptidoglycan, whose primary function is a structural component of many typical bacterial cell walls. In terms of chemical composition, it is the ether of lactic acid and glucosamine. Muramic acid is a marker of bacterial peptidoglycan, in environmental and clinical specimens. (PMID: 10778926) [HMDB] Muramic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=1114-41-6 (retrieved 2024-07-01) (CAS RN: 1114-41-6). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).
Glucosamine
Glucosamine (C6H13NO5) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids. Glucosamine is part of the structure of two polysaccharides, chitosan and chitin. Glucosamine is one of the most abundant monosaccharides. Produced commercially by the hydrolysis of shellfish exoskeletons or, less commonly, by fermentation of a grain such as corn or wheat, glucosamine has many names depending on country. Although a common dietary supplement, there is little evidence that it is effective for relief of arthritis or pain, and is not an approved prescription drug. In the United States, glucosamine is not approved by the Food and Drug Administration for medical use in humans. Since glucosamine is classified as a dietary supplement, evidence of safety and efficacy is not required as long as it is not advertised as a treatment for a medical condition. Nevertheless, glucosamine is a popular alternative medicine used by consumers for the treatment of osteoarthritis. Glucosamine is also extensively used in veterinary medicine as an unregulated but widely accepted supplement. Treatment with oral glucosamine is commonly used for the treatment of osteoarthritis. Since glucosamine is a precursor for glycosaminoglycans, and glycosaminoglycans are a major component of joint cartilage, supplemental glucosamine may help to rebuild cartilage and treat arthritis. However, there is little evidence that any clinical effect of glucosamine works this way. Its use as a therapy for osteoarthritis appears safe but there is conflicting evidence as to its effectiveness. Glucosamine is naturally present in the shells of shellfish, animal bones, bone marrow, and fungi. D-Glucosamine is made naturally in the form of glucosamine-6-phosphate, and is the biochemical precursor of all nitrogen-containing sugars. Specifically in humans, glucosamine-6-phosphate is synthesized from fructose 6-phosphate and glutamine by glutamine—fructose-6-phosphate transaminase as the first step of the hexosamine biosynthesis pathway. The end-product of this pathway is uridine diphosphate N-acetylglucosamine (UDP-GlcNAc), which is then used for making glycosaminoglycans, proteoglycans, and glycolipids. As the formation of glucosamine-6-phosphate is the first step for the synthesis of these products, glucosamine may be important in regulating their production; however, the way that the hexosamine biosynthesis pathway is actually regulated, and whether this could be involved in contributing to human disease remains unclear. Present in mucopolysaccharides and in polysaccharides found in bacteria, fungi, higher plants, invertebrates, vertebrates, antibiotics and UDP complexes. Obt. comly. by hydrol. of seashells [CCD] M - Musculo-skeletal system > M01 - Antiinflammatory and antirheumatic products > M01A - Antiinflammatory and antirheumatic products, non-steroids Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID G051 Glucosamine (D-Glucosamine) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids, is used as a dietary supplement. Glucosamine also is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, which when administered exogenously, exerts pharmacological effects on osteoarthritic cartilage and chondrocytes[1]. Glucosamine (D-Glucosamine) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids, is used as a dietary supplement. Glucosamine also is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, which when administered exogenously, exerts pharmacological effects on osteoarthritic cartilage and chondrocytes[1]. Glucosamine (D-Glucosamine) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids, is used as a dietary supplement. Glucosamine also is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, which when administered exogenously, exerts pharmacological effects on osteoarthritic cartilage and chondrocytes[1].
Retinal
A carotenoid constituent of visual pigments. It is the oxidized form of retinol which functions as the active component of the visual cycle. It is bound to the protein opsin forming the complex rhodopsin. When stimulated by visible light, the retinal component of the rhodopsin complex undergoes isomerization at the 11-position of the double bond to the cis-form; this is reversed in "dark" reactions to return to the native trans-configuration. [HMDB]. Retinal is found in many foods, some of which are flaxseed, pepper (c. baccatum), climbing bean, and other soy product. Retinal is a carotenoid constituent of visual pigments. It is the oxidized form of retinol which functions as the active component of the visual cycle. It is bound to the protein opsin forming the complex rhodopsin. When stimulated by visible light, the retinal component of the rhodopsin complex undergoes isomerization at the 11-position of the double bond to the cis-form; this is reversed in "dark" reactions to return to the native trans-configuration. D020011 - Protective Agents > D000975 - Antioxidants > D002338 - Carotenoids CONFIDENCE standard compound; INTERNAL_ID 142
gamma-Carotene
gamma-Carotene is a cyclic carotene obtained by the cyclization of lycopene. It is found in human serum and breast milk (PMID: 9164160). Carotenoids are isoprenoid molecules that are widespread in nature and are typically seen as pigments in fruits, flowers, birds, and crustacea. Animals are unable to synthesize carotenoids de novo and rely upon the diet as a source of these compounds. Over recent years there has been considerable interest in dietary carotenoids with respect to their potential in alleviating age-related diseases in humans. This attention has been mirrored by significant advances in cloning most of the carotenoid genes and in the genetic manipulation of crop plants with the intention of increasing levels in the diet. Studies have shown an inverse relationship between the consumption of certain fruits and vegetables and the risk of epithelial cancer. Since carotenoids are among the micronutrients found in cancer-preventive foods, detailed qualitative and quantitative determination of these compounds, particularly in fruits and vegetables and in human plasma, have recently become increasingly important (PMID: 1416048, 15003396). Gamma-carotene, also known as γ-carotene, is a member of the class of compounds known as carotenes. Carotenes are a type of unsaturated hydrocarbons containing eight consecutive isoprene units. They are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. Gamma-carotene can be found in a number of food items such as corn, yellow bell pepper, fig, and papaya, which makes gamma-carotene a potential biomarker for the consumption of these food products.
6-Methylsalicylic acid
A monohydroxybenzoic acid that is salicylic acid in which the hydrogen ortho to the carboxylic acid group is substituted by a methyl group. D000893 - Anti-Inflammatory Agents > D000894 - Anti-Inflammatory Agents, Non-Steroidal > D012459 - Salicylates
Neurosporene
Neurosporene, also known as all-trans-neurosporene or 7,8-dihydro-ψ,ψ-carotene, is a member of the class of compounds known as carotenes. Carotenes are a type of unsaturated hydrocarbons containing eight consecutive isoprene units. They are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. Thus, neurosporene is considered to be an isoprenoid lipid molecule. Neurosporene can be found in a number of food items such as chicory, poppy, silver linden, and towel gourd, which makes neurosporene a potential biomarker for the consumption of these food products. Neurosporene can be found primarily in blood and breast milk. Neurosporene is a carotenoid pigment. It is an intermediate in the biosynthesis of lycopene and a variety of bacterial carotenoids . Neurosporene is a triterpenoid carotenoid identified in human plasma, (PMID: 1416048), serum (PMID: 1416048), milk (PMID: 9164160), and tissues of the human eye (PMID: 11180970). D020011 - Protective Agents > D000975 - Antioxidants > D002338 - Carotenoids
Tuberculosinol
beta-D-Glucosamine
Glucosamine is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids. Glucosamine is part of the structure of the polysaccharides chitosan and chitin, which compose the exoskeletons of crustaceans and other arthropods, cell walls in fungi and many higher organisms. In the US it is one of the most common non-vitamin, non-mineral, dietary supplements used by adults. beta-D-Glucosamine is found in common bean, yellow wax bean, and green bean. beta-D-Glucosamine is found in common bean. Glucosamine is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids. Glucosamine is part of the structure of the polysaccharides chitosan and chitin, which compose the exoskeletons of crustaceans and other arthropods, cell walls in fungi and many higher organisms. In the US it is one of the most common non-vitamin, non-mineral, dietary supplements used by adults. (Wikipedia
Methyl phenylacetate
Methyl phenylacetate, also known as fema 2733 or mephaneine, belongs to the class of organic compounds known as benzene and substituted derivatives. These are aromatic compounds containing one monocyclic ring system consisting of benzene. Methyl phenylacetate is a sweet, almond, and floral tasting compound. Methyl phenylacetate is found, on average, in the highest concentration within corns. Methyl phenylacetate has also been detected, but not quantified, in several different foods, such as cocoa and cocoa products, coffee and coffee products, fruits, and pepper (c. frutescens). This could make methyl phenylacetate a potential biomarker for the consumption of these foods. Methyl phenylacetate has a strong odor similar to honey. It is a colorless liquid that is only slightly soluble in water, but soluble in most organic solvents. It is used in the flavor industry and in perfumes to impart honey scents. This compound also occurs in brandy, capsicum, coffee, honey, pepper, and some wine. Methyl phenyldiazoacetate, precursor to cyclopropanation agents, is prepared by treating methyl phenylacetate with p-acetamidobenzenesulfonyl azide in the presence of base. Methyl phenylacetate is an organic compound that is the methyl ester of phenylacetic acid, with the structural formula C6H5CH2COOCH3. Methyl phenylacetate is an organic compound that is the ester formed from methanol and phenylacetic acid. It is a clear colorless liquid that is only slightly soluble in water, but very soluble in most organic solvents. Methyl phenylacetate is found in many foods, some of which are cocoa and cocoa products, corn, coffee and coffee products, and pepper (C. frutescens).
2-(3,7,12,16,20,24-Hexamethylpentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaenyl)-1,3,3-trimethylcyclohexene
Mycolactone
1'-hydroxy-gamma-carotene
1-hydroxy-gamma-carotene is a member of the class of compounds known as xanthophylls. Xanthophylls are carotenoids containing an oxygenated carotene backbone. Carotenes are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. Xanthophylls arise by oxygenation of the carotene backbone. 1-hydroxy-gamma-carotene is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). 1-hydroxy-gamma-carotene can be found in a number of food items such as red bell pepper, elderberry, jute, and plains prickly pear, which makes 1-hydroxy-gamma-carotene a potential biomarker for the consumption of these food products.
7,9,9'-cis-neurosporene
7,9,9-cis-neurosporene is a member of the class of compounds known as carotenes. Carotenes are a type of unsaturated hydrocarbons containing eight consecutive isoprene units. They are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. 7,9,9-cis-neurosporene can be found in a number of food items such as red bell pepper, purple laver, green zucchini, and prunus (cherry, plum), which makes 7,9,9-cis-neurosporene a potential biomarker for the consumption of these food products.
zeta-Carotene
D020011 - Protective Agents > D000975 - Antioxidants > D002338 - Carotenoids Window width to select the precursor ion was 3 Da.; CONE_VOLTAGE is 10 V.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 19HP8024 to the Mass Spectrometry Society of Japan. Window width to select the precursor ion was 3 Da.; CONE_VOLTAGE is 5 V.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 19HP8024 to the Mass Spectrometry Society of Japan.
Glucosamine
Glucosamine (D-Glucosamine) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids, is used as a dietary supplement. Glucosamine also is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, which when administered exogenously, exerts pharmacological effects on osteoarthritic cartilage and chondrocytes[1]. Glucosamine (D-Glucosamine) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids, is used as a dietary supplement. Glucosamine also is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, which when administered exogenously, exerts pharmacological effects on osteoarthritic cartilage and chondrocytes[1]. Glucosamine (D-Glucosamine) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids, is used as a dietary supplement. Glucosamine also is a natural constituent of glycosaminoglycans in the cartilage matrix and synovial fluid, which when administered exogenously, exerts pharmacological effects on osteoarthritic cartilage and chondrocytes[1].
L-3-Phenyllactic acid
(S)-2-Hydroxy-3-phenylpropanoic acid is a product of phenylalanine catabolism. An elevated level of phenyllactic acid is found in body fluids of patients with or phenylketonuria.
2,6-Diaminopimelic acid
The amino dicarboxylic acid that is heptanedioic acid with amino substituents at C-2 and C-6. MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; GMKMEZVLHJARHF-UHFFFAOYSA-N_STSL_0247_26-diaminopimelic_acid_4000fmol_190413_S2_LC02MS02_053; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. 2,6-Diaminoheptanedioic acid is an endogenous metabolite.
gamma-Carotene
A cyclic carotene obtained by the cyclisation of lycopene. Window width to select the precursor ion was 3 Da.; CONE_VOLTAGE is 10 V.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 19HP8024 to the Mass Spectrometry Society of Japan.
Neurosporene
D020011 - Protective Agents > D000975 - Antioxidants > D002338 - Carotenoids
Ovothiol A
A L-histidine derivative that is L-histidine substituted at positions N3 and C5 on the imidazole ring by methyl and mercapto groups respectively.
1'-hydroxy-gamma-carotene
1-hydroxy-gamma-carotene is a member of the class of compounds known as xanthophylls. Xanthophylls are carotenoids containing an oxygenated carotene backbone. Carotenes are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. Xanthophylls arise by oxygenation of the carotene backbone. 1-hydroxy-gamma-carotene is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). 1-hydroxy-gamma-carotene can be found in a number of food items such as red bell pepper, elderberry, jute, and plains prickly pear, which makes 1-hydroxy-gamma-carotene a potential biomarker for the consumption of these food products. 1-hydroxy-γ-carotene is a member of the class of compounds known as xanthophylls. Xanthophylls are carotenoids containing an oxygenated carotene backbone. Carotenes are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. Xanthophylls arise by oxygenation of the carotene backbone. 1-hydroxy-γ-carotene is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). 1-hydroxy-γ-carotene can be found in a number of food items such as red bell pepper, elderberry, jute, and plains prickly pear, which makes 1-hydroxy-γ-carotene a potential biomarker for the consumption of these food products.
edaxadiene
A bicyclic halimane-type diterpenoid produced by the pathogen Mycobacterium tuberculosis as a defense against macrophage attack. The structure was revised in 2010, having been initially thought to be tricyclic. The compound was originally named nosyberkol after it was first isolated in 2004 from a sponge, Raspailia sp., collected from the Nosy Be island of Madagascar.
