Kuthatha ixesha elingakanani i-DHA ukusebenza?

 

Yintoni i DHA ubulembu?

I-DHA, i-docosahexaenoic acid, eyaziwa njengegolide yengqondo, yi-polyunsaturated fatty acid ebaluleke kakhulu emzimbeni womntu kwaye ililungu elibalulekileyo le-Omega-3 unsaturated fatty acid family. I-DHA yeyona nto iphambili ekukhuleni nasekugcinweni kweeseli ze-nervous system. Yinto ebalulekileyo ye-asidi enamafutha engqondo kunye ne-retina. Umxholo we-DHA kwi-cortex ye-cerebral yomntu iphezulu njenge-20%, kwaye ichaza inxalenye enkulu kwi-retina yeso, ibalwa malunga ne-50%. Ibalulekile ekuphuhliseni ubukrelekrele nombono weentsana. Ioli ye-DHA algae itsalwa kwi-microalgae yaselwandle kwaye i-relangokukhuselekileyo ngaphandle kokugqithiswa likhonkco lokutya. Umxholo wayo we-EPA uphantsi kakhulu.

 

Kwi-2010, i-"National Food Safety Standard ye-Infant Formula Food" icacise ngokucacileyo ukuba i-docosahexaenoic acid (22: 6n-3) yongezwa kwifomula yomntwana, ubuncinane umlinganiselo ofanayo we-eicosatetraene kufuneka wongezwe i-Acid (20: 4n-6) . Isixa se-eicosapentaenoic acid (20: 5n-3) kwi-long-chain unsaturated fatty acid akufanele idlule inani le-docosahexaenoic acid. Oku kuthetha ukuba ukuba i-DHA yongezwa kumgubo weentsana, ubuncinane isixa esifanayo se-ARA kufuneka songezwe. Kwaye idosi ye-EPA ayinakudlula idosi ye-DHA.

 

Ngaba i-DHA iyafana neoli yeentlanzi?

Ubisi olungumgubo

I-DHA eyongeziweyo kwi-formula yobisi lwe-powder ngokuqhelekileyo luhlobo lweoli yeentlanzi kunye nohlobo lweoli ye-algae. Ioli yeentlanzi i-DHA inethuba eliphezulu lokungcoliseka. Ke ngoko, ioli ye-algae i-DHA okwangoku ingundoqo. Kubisi lwefomula kunye ne-DHA, umxholo we-DHA kufuneka ufikelele kwi-0.2% -0.5% ye-fatty acids iyonke, malunga ne-20-60mg / L.

Ioli yeentlanzi zolwandle olunzulu

Ioli yeentlanzi ityebile kwi-DHA kunye ne-EPA (i-eicosapentaenoic acid), kwaye i-oyile yentlanzi iphuma ikakhulu kwi-deep-sea fish. Ngokunyuka kweqondo lokukhula kwemizi-mveliso yehlabathi, ukungcoliseka kwendalo kuye kwanda ngakumbi nangakumbi. Kwiminyaka yakutshanje, amazwe amakhulu alobayo afana neKhanada neJapan aye afumanisa ukuba iintlanzi ezibanjisiweyo ziqulethe izinto ezininzi ezingcolisa indalo kunye ne-heavy metal mercury, kwaye uninzi lwazo alunyibiliki ngamafutha. Ijenali yaseBritani yenzululwazi yokusingqongileyo ethi "Photochemical Layer" yapapasha ingxelo yophando eyenziwa ngusosayensi waseBritani uJacobs. Baqokelela iintlobo ezingama-44 zeoli yeentlanzi kumazwe ali-15 baza bafumanisa ukuba ziqulethe izinto ezingcolisa i-organic chlorine, kunye ne-dioxin (Doixin) kunye ne-toxaphene. Yima. Ukongezelela, ioli yeentlanzi iqulethe inxalenye ethile ye-EPA, nayo i-unsaturated fatty acid. Uphononongo lwakwangoko lufumanise ukuba ukuthatha ngokugqithisileyo kwe-EPA kunokuchaphazela ubunzima bomntwana.

 

Kukuphi ukutya okuphezulu kwi-DHA?

I-precursor ye-DHA (i-α-linolenic acid) kwindalo ifumaneka ngokubanzi kwiintongomane kunye neoli yemifuno, njengeoli ye-linseed, imbewu ye-sunflower, i-peanuts kunye namanye amantongomane. Inokuguqulwa ngokuyinxenye ibe yi-DHA emzimbeni, enokusetyenziswa ngumzimba. Nangona kunjalo, izinga lokuguqulwa kwe-α-linolenic acid alikacaci. Ngokuqinisekileyo, i-alpha-linolenic acid kumantongomane kunye namanye amanqatha ibaluleke kakhulu njengesongezo esithe ngqo se-DHA, kwaye ngumthombo oyimfuneko ukuze umzimba ufumane i-DHA eyaneleyo.

Apho ukuthenga i-algae dha

Nangona ezinye iintlanzi zaselwandle ngokwazo zinokudibanisa i-n-3 polyunsaturated fatty acids ezifana ne-DHA kunye ne-EPA, i-DHA kunye ne-EPA eziqokelelwe emizimbeni yazo zisuka ikakhulu kukutya kwazo. Abavelisi abaphambili kwi-marine food chain-marine microorganisms ngabavelisi bokuqala be-n-3 polyunsaturated fatty acids. Ngoko ke, ukukhangela imithombo emitsha ye-n-3 ye-polyunsaturated fatty acids kwii-microorganisms zaselwandle ngokuthe ngcembe ibe yindawo entsha yophando. Iingcamango ze "microbial oil" kunye "neoyile yeseli enye" ​​ziqala ukukhankanywa. Iintlobo ngeentlobo zeentsholongwane zaselwandle ezityebileyo kwi-DHA kunye ne-EPA ziye zabekwa zodwa, ngakumbi ezinye iifungi zaselwandle ezikumgangatho ophantsi kunye ne-microalgae. Xa kuthelekiswa neoli yeentlanzi, i-algae oil DHA ineenzuzo ezingenakulinganiswa nanto zeoyile yeentlanzi. Umvelisi we-YANGGE yindalo kuphela, ukutya okuluhlaza okungenayo intsalela yentsimbi enzima, i-vegan, akukho vumba lentlanzi, ngumthombo oqhubekayo ohlaziyiweyo, kwaye umthombo unokuthenjwa.