Le mafura a - e molemo le e kotsi

The e hatisitsoeng ya data ya ka lilemo tse mashome a mararo ho qetela e bontša hore mafura satureaed ke sesosa se ka sehloohong sa lefu la pelo. Empa kajeno, bo-rasaense ba pakile hore sena hase 'nete. Liphuputso li bontšitse hore bacha ba se ke hakaalo tsa kgetholla mafura ho tloha dijo tsa hao. Ha re bua ka batho ba hōlileng, ho lithibelo ka kenoa bona ba ntse ba ka saense e sebetsang.

Ba bang ba bo-rasaense ba lumela hore mafura phelelang ba haufi-ufi amanang le liphatsa tsa lefutso tsa botho di amehang dithulaganyo tshilong ya dijo, ba dikarolo mehaho ea lera la likokoana-hloko, joalo-joalo Basebeletsi ba Univesithi ea Cardiff bontšitse hore lebese mafura a ho fokotsa kotsi ea lefu la pelo le methapo ea mali. Ka hona, lingaka li ba eletswa ho ntse sebelisa lebese kaofela, ha khuoa. Tshebediso ya sehlahiswa sena ke bana le bacha ke tsa ntša kotsi ho feta ntle. Ka ho ja ho ke ke ho hlokahala hore a fokotse palo ea "mpe" ranole-mafura, tsoekere le letsoai.

Kajeno rea tseba hore ba phelelang ho mafura ha bakela ho nona. Ka tloaelo ho, tshebetso ena ke e loketseng ho palo e khōlō ea noang k'habohaedreite. The tshebediso ya chelete bonyane ba mafura ho etsa hore tsoelo-pele ea mafu a tse ngata. Haholo-holo, sena se amana le mafura a-qhibilihang ka har'a divithamini A, D, E, K, F. likarolo tsena li tla feela ho ke ke ananelang 'mele ntle le lipids lekaneng. Ka lebaka leo, ho na le hypo- le avitaminosis. Ha rea lokela ho lebala hore li-hormone bobeli steroid le acid bile ba nkiloeng lipids. Fats - babatsehang li sireletsang serameng lintho tse bonahalang, e mohloli oa bohlokoa oa matla, metsi le e substrate e se nang sesosa bakeng sa tswakana ya palo ya metsoako bioactive ho ntho e phelang.

'Me ho ntse hloka ho utloisisa hore na seo ke mafura. K'hemistri oa mafura (lipids)

Kaofela ha bona ba arotsoe ka lihlopha tse tharo tse khōlō: e bonolo, e rarahaneng le ho derivatives. Ba sehlopha sa pele ba elang eo bopilwe glycerol (trihydric joala) le tse mafura acid e phahameng. sehlopha sena se akarelletsa triacylglycerols, sterols le waxes. The molek'hule na glycerol lipid rarahaneng, tse mafura acid e phahameng, acid phosphate le sulfate, dintho nitrogenous, lik'habohaedreite le metsoako e meng e mengata. The derivatives kenyeletsa lipids carotene, acid tse mafura, alcohols e phahameng, ba bang ba divithamini mafura-qhibilihang ka har'a , joalo-joalo

Mabapi le tse mafura acid e phahameng ka mafura, ba ile ba ba haholo-holo a emela acyclic phelelang le unsaturated mafura acid. Sebopeho sa ba bang ba mafura a cyclic carboxylic acid, le hydroxyacids. Phelelang mafura na le maemo a phahameng a palmitic, stearic, acid e myristic. Ke tsebo e tloaelehile hoo ba bang ba unsaturated mafura acid ha ba ya hlahiswa 'meleng kapa ba tsa maiketsetso ka lekana, ka chelete bonyane. Ntlheng ena, ba ile ba ba bitsoa ka bohlokwa kapa bohlokoahali. Ho sehlopha sena e matleng a hae arachidonic, linoleic, acid e linolenic. Bohlokwa tse mafura acid ka lekaneng oli palo meroho. Mafura lebese na le e kholo chelete ea acid e arachidonic. Monounsaturated mafura na le palo e khōlō ea acid e oleic.

Ka batho, e leng mafura phelelang (triacylglycerides) li sebelisoa e le lintho tse bonahalang matla. Tsena li akarelletsa batho ba hlahang ho yona phoofolo, hammoho le meroho tiileng. Triacylglycerols ka lihlahisoa tse ngata nama ea mafura nama le lihlahisoa tsa lebese, chokolete le lihlahisoa confectionery. Ka tsela e feteletseng tshebediso ya mafura tsena li ka etsa hore ho eketseha ha ea mahloriso ea k'holeseterole e ka 'mele. Seo ho thoeng ke "pathological" k'holeseterole e beha ka marako a methapo ea mali, e leng le eena, a etsa hore tsoelo-pele ea mafu a kang atherosclerosis, elasticity vascular e robehileng, ba thehoa hemorrhage.

Litsebi tsa phepo nkhothaletsa ja e nyenyane ea ba phelelang ho mafura a. Ea kotsi a tlohele ka ho fetisisa ho 'mele ba nkoa e le a ranole-mafura. isomers joalo di thehoa e loketseng hore a nke khato ka mabaka 'meleng le lik'hemik'hale ka mafura meroho, e leng fetola boemo ba bona' meleng ho tloha mokelikeli ho tiileng. Ho ba kenyeletsa margarine e le confectionery le pheha oli. Ba ka hlahisa phello efe e carcinogenic.