Sirapa ea poone e phahameng ea fructose (HFCS) le tsoekere e tloaelehileng e batla e tšoana, e nang le phepo e nepahetseng. Ka bobeli li mpe bakeng sa bophelo ba hau ha li ja haholo hobane ho ja tse ngata ho ka 'na ha etsa hore motho a be le boima ba' mele, 'me ha ho monate o nang le phepo e nepahetseng ho feta lik'halori. Batho ba bang ba lumela hore HFCS e kotsi ho bophelo ba hau ho feta tsoekere e tloaelehileng, empa litlaleho tsena ha li itšetlehe ka liphuputso tsa saense.
Ntlha ea pele, Little Sugar Chemistry
Molek'hule e 'ngoe le e' ngoe ea tsoekere e tloaelehileng, e tsejoang e le sucrose, e entsoe ka li-sugar e le 'ngoe e tsoekere e bitsoang glucose le fructose. Glucose ke 'mele oo setopo sa' mele se ratang haholo bakeng sa matla, 'me o fumanoa lijong tsohle tsa tsoekere le tsa starchy tseo u li jang. Fructose ke tsoekere e kholo e fumanoang litholoana. 'Mele oa hau o ka sebelisa fructose e le matla hape; e mpa e hloka mosebetsi o seng o eketsehileng.
Tsoekere eohle, ebang ke tsoekere e mosoeu, tsoekere e sootho, tsoekere ea tsoekere kapa mahe a linotši a tšoana le halofo ea fructose le halofo ea halofo.
Sirapo ea poone e phahameng ea fructose e hlahisoa ho tloha ka cornstarch, 'me e entsoe ka limolek'hule tsa fructose le tsa glucose. Hase hantle halofo le halofo, joalo ka tsoekere, empa li-closeulations tse haufi-ufi li tsoa ho hoo e ka bang liphesente tse 42 ho ea ho karolo ea 55 lekholong ea fructose. Palo ea fructose e ka ba "e phahameng" ha e bapisoa le sirapo e tloaelehileng ea poone (e hlileng e leng tlase fructose) empa ha e le hantle e batla e tšoana le tsoekere e tloaelehileng. Ka lebaka leo, tsoekere le HFCS li na le metabolism e tšoanang le phello e tšoanang bophelong ba hau - ke hore, haeba u ja haholo, lik'hilojule tse eketsehileng li bolokiloe ka mafura.
Kahoo ke Hobane'ng ha HFCS e Tsoa Demone?
Ho na le mabaka a 'maloa a seo, bobeli bo amanang le lipatlisiso tse sa utloisiseng. Lebaka le leng le akarelletsa ho fokolloa ha lipatlisiso tsa lipatlisiso 'me tse ling ke ka ho ferekanyetsana ha liphallelo le ho baka sesosa.
Ntlha ea pele, tlhaloso ea fructose. Liphuputso tse entsoeng ka liphoofolo tsa laboratory tse bontšitsoeng hore ho ja lijo tse phahameng fructose li ka lebisa ho boima bo boima, insulin ho hanyetsa, khatello e phahameng ea mali le litekanyetso tse phahameng tsa triglycerides - lintho tsohle tse mpe.
Kaha "fructose" e utloahala eka ke "seropa sa poone e phahameng ea fructose" 'me ha ho letho le kang "tsoekere e tloaelehileng," batho ba bang ba kopanya tsena tse peli' me ba etsa qeto ea HFCS e kotsi, empa ka tsela e itseng tsoekere ha e mpe.
Ho ka etsahala hore ho fumana karolo e kholo ea lik'hilojule tsa hau ho tloha fructose letsatsi le leng le le leng ho ka etsa hore u be le boima ba bohlokoa ho feta lik'hilojule tse jeoang ho tsoa mehloling e meng ea tsoekere - bonyane haeba u le lab ea liteko (lithuto tsa batho ha lia tšehetsa seo). Empa, ho thoe'ng haeba o ja fructose haholo ka kakaretso - hobane u ja lijo tse ngata haholo? Hona ho thoe'ng haeba fructose e ngata e tsoa HFCS hobane e fetoha sejo se tloaelehileng? Sena se ntlisa ka lebaka la bobeli la ho silafatsa HFCS, ho ferekanngoa pakeng tsa sesosa le kopano.
Semela sa sira e phahameng ea fructose e theko e tlaase ho feta tsoekere e tloaelehileng, kahoo e sebelisoa e le motsoako oa lijo tse sebelisoang le lino tse ngata tse ntseng li eketseha lilemong tse seng kae tse fetileng. Nakong eona eo, litekanyetso tsa botenya haholo, lefu la pelo le lefu la tsoekere la mofuta oa II le tsona li nyolohetse United States 'me batho ba bang ba beha molato oa keketseho eo ha ho sebelisoa HFCS ka nako e le' ngoe.
Ho kenngoa ha caloric ho feta ho tloha HFCS e ka 'na ea e-ba karolo ea bothata - eseng hobane HFCS ke tlhaho e mpe - empa hobane Maamerika a ekelitse lik'hilojule ka kakaretso.
Tabeng eo, HFCS ke moferefere feela, mme ha ho na lebaka le utloahalang la ho lumela hore ho khomarela tsoekere e le sesebelisoa ho ka etsa phapang leha e le efe.
Ntoa ea lijo - Ke mang ea hlōlang?
Ha ho na mohlophisi mona - HFCS le tsoekere e tloaelehileng li nepahetse ka lichelete tse nyenyane mme tse peli li mpe haeba u ja haholo - empa ka ho lekana; ngoe ha e mpe ho feta e 'ngoe. Ho tsoekere haholo kapa HFCS ho tla ba le phello e mpe 'meleng ka ho eketsa likarolo tsa mali lipids joaloka triglycerides' me li ka tlatsetsa ho boima ba 'mele ha u ja haholo.
Ke bokae haholo? Seo se itšetlehile ka litlhoko tsa khalori ea hau ea letsatsi le letsatsi, empa mohlomong u na le lik'hilojule tse ka bang 100 ho ea ho tse 200 tseo u lokelang ho li sebelisa ka ligrama tse seng kae tsa tsoekere kapa HFCS letsatsi le leng le le leng.
Lisebelisoa:
Forshee RA, Storey ML, Allison DB, Glinsmann WH, Hein GL, Lineback DR, Miller SA, Nicklas TA, Weaver GA, White JS. "Ho hlahloba ka ho hlaka bopaki bo mabapi le sirapo ea poone ea fructose e phahameng le ea boima ba 'mele." Crit Rev Food Sci Litsi. 2007; 47 (6): 561-82. http://www.tandfonline.com/doi/abs/10.1080/10408390600846457.
Parks EJ, Skokan LE, Timlin MT, Dingfelder CS. "Tsoekere ea lijo e etsa hore batho ba baholo ba be le li-acid tse mafura." J Nutriti. 2008 Jun; 138 (6): 1039-46. http://jn.nutrition.org/content/138/6/1039.
Elliott SS, Keim NL, Stern JS, Teff K, Havel PJ. "Fructose, boima ba 'mele, le lefu la insulin ho hanyetsa." Am J Lijoana tsa Mmele. 2002 Nov; 76 (5): 911-22. http://ajcn.nutrition.org/content/76/5/911.Hohle.
Sievenpiper JL, de Souza RJ, Mirrahimi A, Yu ME, Carleton AJ, Beyene J, Chiavaroli L, Di Buono M, Jenkins AL, Leiter LA, Wolever TM, Kendall CW, DJ Jenkins. "Phello ea fructose ka boima ba 'mele litsing tse laoloang tsa ho fepa: tlhahlobo e hlophisitsoeng le ho hlahloba litšoantšo." Ann Intern Med. 2012 Feb 21; 156 (4): 291-304. http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0034296/.
Sonestedt E, Overby NC, Laaksonen DE, Birgisdottir BE. "Na tšebeliso e phahameng ea tsoekere e eketsa likotsi tsa lefu la cardiometabolic le ho eketsa kotsi ea mofuta oa lefu la tsoekere le lefu la pelo?" Phepo ea Lijo. 2012; 56. doi: 10.3402 / fnr.v56i0.19104. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3409338/.