Zimalimbikitsa mafuta - zabwino ndi zoipa

The lofalitsidwa deta wa zaka makumi atatu otsiriza akusonyeza kuti ano zimalimbikitsa mafuta ndi chifukwa chachikulu cha matenda a mtima. Koma lero, asayansi atsimikizira kuti zimenezi si zoona. Kafukufuku wasonyeza kuti achinyamata sikuti kukusalani mafuta zakudya zanu. Ngati ife kulankhula za okalamba, yosaloledwa chikuonetseratu awo adakali mwasayansi chomveka.

Asayansi ena amakhulupirira kuti ano zimalimbikitsa mafuta zikugwirizana kwambiri ndi chibadwa anthu PALI njira kagayidwe kachakudya, ndi zigawo structural wa zimagwira ntchito zosiyanasiyana zamoyo etc. Wogwila ntchito ya University of Cardiff anatsimikizira kuti mkaka mafuta amachepetsa matenda a mtima ndi mitsempha ya magazi. Choncho, madokotala akulangizidwa kugwiritsa ntchito mkaka lonse, osati kutungira. Kugwiritsa ntchito mankhwala ndi ana ndi achinyamata kuchita zoipa koposa zabwino. Mu chakudya n'kofunika kuchepetsa chiwerengero cha "oipa" Trans-mafuta, shuga ndi mchere.

Lero tisadziwa ano zimalimbikitsa mafuta musati chifukwa kunenepa. Childs, ndondomeko ndi chifukwa kuchuluka kwambiri kugula zimam'patsa. The ntchito osachepera kuchuluka kwa mafuta akapsa chitukuko cha matenda ambiri. Kwenikweni, chikugwirizana ndi mafuta-sungunuka mavitamini A, D, E, K, F. zinthu izi amangokhala si chosakanikirana ndi thupi lopanda lipids chokwanira. Chifukwa, pali hypo- ndi avitaminosis. Tisaiwale kuti mahomoni onse steroid ndi zidulo ya ndulu zichokera lipids. Mafuta - kwambiri zokutira zitsulo zinthu, gwero zofunika mphamvu, madzi ndi gawo lapansi amkati kwa kaphatikizidwe angapo a mankhwala bioactive kwa chamoyo.

Ndipo ayenera kulingalira zomwe mafuta. Kapangidwe ka mafuta (lipids)

Onse m'magulu atatu lalikulu: wophweka, zovuta ndi ena ofanana. Gulu loyamba ndi zimene zigwirizana glycerol (trihydric mowa) ndi mafuta zidulo apamwamba. gulu Izi zikuphatikizapo triacylglycerols, sterols ndi waxes. Molekyulu lili glycerol zamadzimadzi zovuta, mafuta zidulo apamwamba, zidulo phosphate ndi sulphate ndi zinthu nitrogenous, chakudya ndi mankhwala ena ambiri. The ofanana nawo monga lipids carotene, zidulo mafuta, alcohols apamwamba, ena mavitamini mafuta-sungunuka , etc.

Pankhani mafuta zidulo apamwamba mu mafuta, iwo makamaka ankaimira acyclic zimalimbikitsa ndi unsaturated mafuta zidulo. The zikuchokera ena mafuta ndi ozungulira carboxylic zidulo, ndi hydroxyacids. Zimalimbikitsa mafuta muli mpweya wambiri wa palmitic, stearic, asidi myristic. Ndi bwino kuti ena unsaturated mafuta zidulo osati m'thupi kapena ali apanga mu osakwanira, ndi osachepera kuchuluka. Pa nkhani imeneyi, iwo amatchedwa ndi zofunika kapena chofunika kwambiri. Gulu uli arachidonic, linoleic, asidi linolenic. N'kofunika mafuta zidulo mu okwanira mafuta kuchuluka masamba. Mafuta mkaka lili wambirimbiri asidi arachidonic. Monounsaturated mafuta muli ndalama yaikulu asidi oleic.

Anthu, mafuta zimalimbikitsa (triacylglycerides) amagwiritsidwa ntchito monga chuma mphamvu. Maulosiwa chiyambi nyama, komanso masamba olimba. Triacylglycerols mankhwala ambiri nyama mafuta nyama ndi mkaka, chocolate ndi mankhwala Confectionery. Kugwiritsa kumwa mafuta izi zingathe kudzetsa kuwonjezeka mu ndende ya mafuta m'thupi. Otchedwa "pathological" mafuta anakaika pa Mitsempha, womwe, umayambitsa chitukuko cha matenda monga atherosclerosis, elasticity mtima wathyoka, anapanga kukha magazi.

Akatswiri a zakudya amati kudya pang'ono zimalimbikitsa mafuta. The zoipa kwambiri kwa thupi amaonedwa kukhala Trans-mafuta. isomers amenewa anapanga chifukwa zochita za zinthu zakuthupi ndi mankhwala pa idyani mafuta a mtedza, omwe kusintha mkhalidwe wawo wakuthupi ku zamadzimadzi olimba. Kwa iwo monga margarine ndi Confectionery ndi kuphika mafuta. Iwo zingabweretse zotsatira carcinogenic.