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terpenoid wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 structure and classification 2 biosynthesis 3 impact on aerosols 4 see also 5 references 6 external links toggle the table of contents terpenoid 34 languages العربية беларуская тарашкевіца беларуская বাংলা bosanski català čeština cymraeg deutsch ελληνικά español eesti suomi français ગુજરાતી עברית magyar bahasa indonesia italiano 日本語 한국어 bahasa melayu nederlands polski русский srpskohrvatski српскохрватски simple english српски srpski svenska türkçe українська oʻzbekcha ўзбекча tiếng việt 中文 edit links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia class of aromatic organic chemicals found in plants terpenoids also known as isoprenoids are a class of naturally occurring organic chemicals derived from the 5 carbon compound isoprene and its derivatives called terpenes diterpenes etc while sometimes used interchangeably with terpenes terpenoids contain additional functional groups usually containing oxygen 1 when combined with the hydrocarbon terpenes terpenoids comprise about 80 000 compounds 2 they are the largest class of plant secondary metabolites representing about 60 of known natural products 3 many terpenoids have substantial pharmacological bioactivity and are therefore of interest to medicinal chemists 4 plant terpenoids are used for their aromatic qualities and play a role in traditional herbal remedies terpenoids contribute to the scent of eucalyptus the flavors of cinnamon cloves and ginger the yellow color in sunflowers and the red color in tomatoes 5 well known terpenoids include citral menthol camphor salvinorin a in the plant salvia divinorum ginkgolide and bilobalide found in ginkgo biloba and the phytocannabinoids found in plants such as cannabis the provitamin β carotene beta carotene is a terpene derivative called a carotenoid the steroids and sterols in animals are biologically produced from terpenoid precursors sometimes terpenoids are added to proteins e g to enhance their attachment to the cell membrane this is known as isoprenylation terpenoids play a role in plant defense as prophylaxis against pathogens and attractants for the predators of herbivores 6 structure and classification edit terpenoids are modified terpenes 7 wherein methyl groups have been moved or removed or oxygen atoms added some authors use the term terpene more broadly to include the terpenoids just like terpenes the terpenoids can be classified according to the number of isoprene units that comprise the parent terpene terpenoids analogue terpenes number of isoprene units number of carbon atoms general formula examples 8 hemiterpenoids isoprene 1 5 c 5 h 8 dmapp isopentenyl pyrophosphate isoprenol isovaleramide isovaleric acid hmbpp prenol monoterpenoids monoterpenes 2 10 c 10 h 16 bornyl acetate camphor carvone citral citronellal citronellol geraniol eucalyptol hinokitiol iridoids linalool menthol thymol sesquiterpenoids sesquiterpenes 3 15 c 15 h 24 farnesol geosmin humulone diterpenoids diterpenes 4 20 c 20 h 32 abietic acid ginkgolides paclitaxel retinol salvinorin a sclareol steviol sesterterpenoids sesterterpenes 5 25 c 25 h 40 andrastin a manoalide triterpenoids triterpenes 6 30 c 30 h 48 amyrin betulinic acid limonoids oleanolic acid sterols squalene ursolic acid tetraterpenoids tetraterpenes 8 40 c 40 h 64 carotenoids polyterpenoid polyterpenes 8 40 c 5 h 8 n gutta percha natural rubber terpenoids can also be classified according to the type and number of cyclic structures they contain linear acyclic monocyclic bicyclic tricyclic tetracyclic pentacyclic or macrocyclic 8 the salkowski test can be used to identify the presence of terpenoids 9 selected terpenoids paclitaxel is a diterpenoid anticancer drug terpineols are monoterpenoids humulones are classified as sesquiterpenoids retinol is a diterpenoid hinokitiol is a monoterpenoid a tropolone derivative limonin a common limonoid is a triterpenoid geosmin is a sesquiterpenoid biosynthesis edit further information terpene biosynthesis terpenoids at least those containing an alcohol functional group often arise by hydrolysis of carbocationic intermediates produced from geranyl pyrophosphate analogously hydrolysis of intermediates from farnesyl pyrophosphate gives sesquiterpenoids and hydrolysis of intermediates from geranylgeranyl pyrophosphate gives diterpenoids etc 10 impact on aerosols edit in air terpenoids are converted into various species such as aldehydes hydroperoxides organic nitrates and epoxides 11 by short lived free radicals like the hydroxyl radical and to a lesser extent by ozone 12 these new species can dissolve into water droplets and contribute to aerosol and haze formation 13 secondary organic aerosols formed from this pathway may have atmospheric impacts 14 as an example the blue ridge mountains in the u s and blue mountains of new south wales in australia are noted for having a bluish color when seen from a distance trees put the blue in blue ridge from their terpenoids released into the atmosphere 15 16 17 see also edit list of antioxidants in food list of phytochemicals in food nutrition phytochemistry secondary metabolites references edit chemistry international union of pure and applied iupac compendium of chemical terminology iupac doi 10 1351 goldbook t06279 christianson david w 2017 structural and chemical biology of terpenoid cyclases chemical reviews 117 17 11570 11648 doi 10 1021 acs chemrev 7b00287 pmc 5599884 pmid 28841019 firn r 2010 nature s chemicals oxford biology cite book cs1 maint publisher location link ashour mohamed wink michael gershenzon jonathan 2010 biochemistry of terpenoids monoterpenes sesquiterpenes and diterpenes biochemistry of plant secondary metabolism pp 258 303 doi 10 1002 9781444320503 ch5 isbn 9781444320503 specter m september 28 2009 a life of its own the new yorker singh bharat sharma ram a april 2015 plant terpenes defense responses phylogenetic analysis regulation and clinical applications 3 biotech 5 2 129 151 doi 10 1007 s13205 014 0220 2 issn 2190 572x pmc 4362742 pmid 28324581 houghton isaac the physiology of cannabis terpenes and terpenoids a brief overview elliot barker retrieved 3 may 2016 1 2 ludwiczuk a skalicka woźniak k georgiev m i 2017 terpenoids pharmacognosy 233 266 doi 10 1016 b978 0 12 802104 0 00011 1 isbn 9780128021040 cite journal cs1 maint periodical has isbn link ayoola ga 2008 phytochemical screening and antioxidant activities of some selected medicinal plants used for malaria therapy in southwestern nigeria tropical journal of pharmaceutical research 7 3 1019 1024 doi 10 4314 tjpr v7i3 14686 hdl 1807 60332 davis edward m croteau rodney 2000 cyclization enzymes in the biosynthesis of monoterpenes sesquiterpenes and diterpenes topics in current chemistry 209 53 95 doi 10 1007 3 540 48146 x_2 isbn 978 3 540 66573 1 cite journal cs1 maint periodical has isbn link organic carbon compounds emitted by trees affect air quality sciencedaily aug 7 2009 iupac subcommittee on gas kinetic data evaluation data sheet ox_voc7 2007 a source of haze sciencenews august 6 2009 d ambro emma l schobesberger siegfried gaston cassandra j lopez hilfiker felipe d lee ben h liu jiumeng zelenyuk alla bell david cappa christopher d helgestad taylor li ziyue 2019 09 05 chamber based insights into the factors controlling epoxydiol iepox secondary organic aerosol soa yield composition and volatility atmospheric chemistry and physics 19 17 11253 11265 bibcode 2019acp 1911253d doi 10 5194 acp 19 11253 2019 hdl 10138 305801 issn 1680 7316 johnson aw 1998 invitation to organic chemistry jones bartlett learning p 261 isbn 978 0 7637 0432 2 blue mountains chemical terpene blue ridge parkway frequently asked questions national park service 2007 archived from the original on december 28 2007 retrieved december 29 2007 csiro beating the eucalypt blues new ways to model air quality www csiro au retrieved 2023 12 10 external links edit iupac definition of terpenoids v t e secondary metabolites general alkaloids codeine morphine cocaine tetrodotoxin atropine natural phenols polyphenols monoterpenoids geranyl diphosphate limonene pinene diterpenoids geranylgeranyl diphosphate taxol aphidicolin pimaradiene antibiotics penicillin streptomycin tetracycline enzyme cofactors v t e types of terpenes and terpenoids of isoprene units basic forms acyclic linear cis and trans forms monocyclic single ring bicyclic 2 rings iridoids cyclopentane ring iridoid glycosides iridoids bound to a sugar steroids 4 rings hemiterpenoids 1 isoprene c 5 h 8 prenol isovaleric acid monoterpenes c 10 h 16 2 acyclic ocimene myrcenes monocyclic limonene terpinene phellandrene bicyclic pinene α and β camphene thujene sabinene carene monoterpenoids 2 modified acyclic citronellal citral citronellol geraniol geranyl pyrophosphate halomon linalool monocyclic achilleol a grapefruit mercaptan menthol p cymene thujaplicins hinokitiol thymol perillyl alcohol carvacrol bicyclic camphor borneol bornyl acetate eucalyptol ascaridole umbellulone sesquiterpenoids 3 artemisinin bisabolol cadinene cadinol cedrene chanootin farnesyl pyrophosphate juniperol longifolene muurolene nootkatin diterpenoids 4 acyclic phytol geranylgeranyl pyrophosphate geranyl linalool monocyclic retinol retinal bicyclic cis abienol epimanool salvinorin a tricyclic cembrene forskolin manoyl oxide pimaral pimarol tetracyclic aphidicolin gibberellin paclitaxel resin acids abietic acid communic acid dehydroabietic acid isopimaric acid lambertianic acid levopimaric acid mercusic acid neoabietic acid pimaric acid sandaracopimaric acid secodehydroabietic acid palustric acid sesterterpenoids 5 geranylfarnesol triterpenoids 6 steroids phytosterols campesterol citrostadienol cycloartenol sitostanol sitosterol stigmasterol tocopherols cholesterol testosterone cholecalciferol ecdysones other betulin euphol lanosterol madecassoside saponins serratenediol squalane acids oleanolic acid ursolic acid betulinic acid moronic acid madecassic acid zizyberenalic acid sesquarterpenes oids 7 ferrugicadiol tetraprenylcurcumene tetraterpenoids carotenoids 8 carotenes alpha carotene beta carotene gamma carotene delta carotene lycopene neurosporene phytofluene phytoene xanthophylls canthaxanthin cryptoxanthin zeaxanthin astaxanthin lutein rubixanthin polyterpenoids many natural rubber gutta percha gutta balatá norisoprenoids modified 3 oxo α ionol 7 8 dihydroionone synthesis terpene synthase enzymes many having in common a terpene synthase n terminal domain protein domain activated isoprene forms isopentenyl pyrophosphate ipp dimethylallyl pyrophosphate dmapp authority control databases gnd retrieved from https en wikipedia org w index php title terpenoid oldid 1371206869 categories terpenes and terpenoids plant communication hidden categories articles with short description short description is different from wikidata cs1 maint publisher location cs1 maint periodical has isbn this page was last edited on 25 august 2026 at 05 08 utc page was rendered with parsoid text is available under the creative commons attribution sharealike 4 0 license additional terms may apply by using this site you agree to the terms of use and privacy policy wikipedia is a registered trademark of the wikimedia foundation inc a non profit organization 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