Jessica Vargas
I-cocoa inikeza ubuchopho amandla. Ocwaningweni, izinto zezitshalo ezijwayelekile ze-cocoa zikwazile ukusheshisa ukugeleza kwegazi ukuya ebuchosheni futhi ngaleyo ndlela zinikeze umoya-mpilo owengeziwe ebuchosheni. Izihloko zokuhlolwa ezilandelanayo nazo zenze kangcono ekuhlolweni kokuqonda okwalandela.
I-cocoa yobuchopho: Imithambo yegazi enempilo iqinisekisa ukufaneleka kwengqondo
Ucwaningo lwangaphambili lubonise ukuthi ukudla okucebile ku-flavonoids, kanye ne-cocoa, ikakhulukazi, kunganciphisa ukuvuvukala futhi kuthuthukise impilo yemithambo yegazi, ngaleyo ndlela kuvimbele izinkinga zenhliziyo. Ocwaningweni lokuqala mayelana nomthelela we-flavonoid emithanjeni yobuchopho, manje kwase kutholakala ukuthi izinto zezitshalo ngokwazo zinomthelela kule ndawo futhi zingakhuphula ukusebenza kwengqondo. Ucwaningo lwashicilelwa ngoNovemba 2020 kumagazini Imibiko Yesayensi.
Izinhlanganisela zezitshalo ezisebenzayo ku-cocoa: ama-flavanols
U-Catarina Rendeiro - usosayensi eNyuvesi yase-Birmingham - uhole lolu cwaningo olungaboni kahle kanye noprofesa ababili bezengqondo uMonica Fabiani noGabriele Gratton base-University of Illinois e-Urbana-Champaign. URendeiro wachaza: “Ama-flavanol angama- molecule amancane atholakala ezithelweni nasemifino eminingi, kodwa nakukhokho. Zinomphumela onenzuzo kakhulu emithanjeni yegazi. Manje besifuna ukuphenya ukuthi ama-flavanols angakwazi yini ukuthinta ubuchopho nemisebenzi yokuqonda. "
I-Flavanols iyiqembu elincane lomndeni omkhulu wezitshalo ze-flavonoids. Ama-flavanols ahlanganisa u-B. kanye ne-epigallocatechin gallate (EGCG) edumile evela etiyeni eliluhlaza noma i-oligomeric proanthocyanidins, engase yaziwa kangcono ngokuthi i-OPC kanye no-z. B. equkethwe embewu yamagilebhisi noma esikhumbeni esinsundu sezinhlamvu zamakinati.
Isifundo: Ingabe Ukhokho Ingathuthukisa Izimpendulo Zengqondo?
Kukhethwe abangabhemi abanempilo eyishumi nesishiyagalombili njengabahlanganyeli bocwaningo. Ucwaningo beluhlanganisa ama-run amabili. Kokunye, ababambiqhaza bathole i-cocoa ecebile ngama-flavanols, kokunye bathola i-cocoa ecutshungulwe kakhulu enokuqukethwe okuphansi kakhulu kwe-flavanol. Ukuze kungabi nomthelela emphumeleni wocwaningo ngokulindelwe okuthile kubahlanganyeli noma ososayensi, abahlanganyeli noma ososayensi babengazi ukuthi iyiphi i-cocoa eyayisetshenziswa kukho kokubili ukugijima.
Ngemva kwamahora amabili bedle ukhokho, izihloko ziphefumula umoya oqukethe amaphesenti angu-5 e-carbon dioxide. Umoya ovamile une-carbon dioxide engamaphesenti angu-0.04 kuphela, ngakho lolu cwaningo luhogele umoya oqukethe isikhutha esiphindwe izikhathi ezingaphezu kwe-100. Umoya ocebile nge-carbon dioxide uhlale ulawulwa ezifundweni uma ufuna ukuhlola isimo nokusebenza kwemithambo yegazi ebuchosheni. Uma kuhogelwe i-carbon dioxide eningi, umzimba uvamise ukusabela ngokugeleza kwegazi okwandisiwe elibangise ebuchosheni ukuze amangqamuzana ampunga asale enikezwa umoya-mpilo ngokwanele futhi ngesikhathi esifanayo i-carbon dioxide eyengeziwe ingathuthwa futhi ngokushesha. .
I-cocoa isebenza kuphela ngokuqukethwe okuphezulu kwe-flavanol
Ngosizo lwe-spectroscopy eseduze ne-infrared, izinguquko ezihambisanayo ekugelezeni kwegazi kanye nasekunikezeni komoya-mpilo ebuchosheni zingalinganiswa, ukuze umuntu abone ukuthi ubuchopho bungazivikela kanjani ekudluleleni kwe-carbon dioxide. Abacwaningi babenesithakazelo ikakhulukazi ezinguqukweni ze-frontal cortex, okungukuthi esifundeni sobuchopho esibaluleke kakhulu ekuhleleni, ukulawula ukuziphatha komuntu siqu, kanye nokwenza izinqumo.
Ngesikhathi esifanayo, ababambiqhaza babebhekene nemisebenzi evumela ukuthi amakhono abo okuqonda ahlolwe. Cishe bonke ababambiqhaza (i-14 kwabangu-18) bathole i-oxygenation yobuchopho engcono futhi esheshayo ngemva kokudla i-cocoa ephezulu ye-flavanol kungemuva kokudla i-cocoa ephansi ye-flavanol.
Ukhokho uphinda kathathu ukutholakala komoyampilo ebuchosheni
Yebo, i-oxygenation yobuchopho yayiphakeme ngokuphindwe kathathu ngemva kwe-cocoa ephezulu ye-flavanol kune-cocoa ephansi ye-flavanol, futhi ukugeleza kwegazi kwakushesha ngomzuzu owodwa kulaba ababambiqhaza. Abahlanganyeli abane-cocoa ecebile nge-flavanol nabo benze kangcono ekuhlolweni kwengqondo. Baxazulule imisebenzi eyinkimbinkimbi ngesikhathi esifushane ngamaphesenti ayi-11. Kwakungekho mehluko wesikhathi emisebenzini elula.
Ezifundweni ezi-4 kwezingu-18, ama-flavanols awazange abonakale enomthelela othile - awazange athuthukise ukunikezwa kwe-oxygen ebuchosheni noma aqedele imisebenzi ngokushesha kunangaphandle kwama-flavanols. Kodwa-ke, kwavela ukuthi lezi zifundo ze-4 kwakungabantu ubuchopho babo obuvele bunokusabela okuhle kakhulu kanye nokunikezwa komoya-mpilo ngaphandle kwe-cocoa, ngakho-ke kungacatshangwa ukuthi ama-flavanols awaphezulu kakhulu kubantu asebevele befanelekile futhi banomphumela owengeziwe.
I-cocoa kuphela ecebile nge-flavanol ethuthukisa ukuqina kwengqondo
Nge-cocoa ecebile nge-flavanol, imisebenzi yemithambo yegazi ebuchosheni ingathuthukiswa kuqala bese kuba nempilo enengqondo. Ngakho-ke uma ufuna ukusebenzisa ukhokho noma ushokoledi esikhathini esizayo ukuze uthole impilo yemithambo yegazi, isimiso sakho senhliziyo, nobuchopho bakho, qiniseka ukuthi usebenzisa i-cocoa yekhwalithi ephezulu noma ushokoledi wekhwalithi ephezulu.
Iziphuzo ze-cocoa ezisheshayo ezaziwayo kanye noshokoledi zicutshungulwa kakhulu futhi ngenxa yalokho kune-flavanol ephansi. Ukugazinga nje okuvamile ukuthi wonke ubhontshisi we-cocoa udlula ngaphambi kokuthi ucutshungulwe kushokoledi ovamile kanye nemikhiqizo ye-cocoa kunciphisa kakhulu okuqukethwe kwe-flavanol. Ngakho-ke, finyelela ukhokho wekhwalithi yokudla okuluhlaza, isb B. ushokoledi ongahluziwe ovela e-Ombar, amabha kashokholethi ohlaza aseRoo'bar, noma ama-cocoa nibs, ahambisana kahle ne-muesli.
