ʻO ka mea maʻamau, ʻaʻole pili ʻia nā nitrates me ka ʻaina ahiahi, akā e hoʻāla i nā manaʻo e pili ana i nā haʻawina kemika kula a i ʻole nā mea kanu. Inā ʻoe e noʻonoʻo i ka nitrates i loko o ka pōʻaiapili o ka meaʻai, ʻo ke kiʻi maikaʻi ʻole i hiki mai i ka noʻonoʻo ʻo ia i loko o nā ʻiʻo i hoʻoponopono ʻia a me nā mea kanu hou, ʻo nā nitrates nā pūhui carcinogenic. Akā, he aha lākou a he mea pōʻino mau?
ʻO ka ʻoiaʻiʻo, ʻoi aku ka maʻalahi o ka pilina ma waena o nā nitrites/nitrates a me ke olakino ma mua o ka "ʻino lākou no mākou". No ka laʻana, ua hoʻopili ʻia ka nui o ka nitrate kūlohelohe o ka wai beetroot me ka hoʻohaʻahaʻa i ke koko a me ka hoʻonui ʻana i ka hana kino. ʻO nā nitrates ka mea hana i kekahi mau lāʻau angina.
He ʻino maoli anei nā nitrates a me nā nitrites iā mākou?
ʻO nā nitrates a me nā nitrites, e like me ka potassium nitrate a me ka sodium nitrite, he mau pūhui kemika i loaʻa ka nitrogen a me ka oxygen. I loko o nā nitrates, ua hoʻopaʻa ʻia ka nitrogen i ʻekolu mau ʻātoma oxygen, a ma nā nitrites, i ʻelua. ʻO nā mea ʻelua he mālama mālama kānāwai e pale ai i nā maʻi ʻino i loko o ka puaʻa, ham, salami, a me kekahi mau paʻakai.
Akā ʻo ka ʻoiaʻiʻo, aia wale nō ma kahi o 5% o nā nitrates i ka awelika ʻai ʻEulopa mai ka ʻiʻo, ʻoi aku ma mua o 80% mai nā mea kanu. Loaʻa nā mea kanu i nā nitrates a me nā nitrites mai ka lepo kahi e ulu ai lākou. ʻO ka nitrates kekahi ʻāpana o nā waihona mineral maoli, aʻo nā nitrites i hana ʻia e nā microorganism lepo e wāwahi i nā mea holoholona.
ʻO nā lau ʻōmaʻomaʻo e like me ka spinach a me ka arugula ke ʻano o nā mea kanu nitrate kiʻekiʻe. ʻO nā kumu waiwai ʻē aʻe he celery a me ka wai beetroot, a me nā kāloti. He haʻahaʻa haʻahaʻa ka nui o ka nitrate o nā mea kanu i ulu ʻia ma ke kino no ka mea ʻaʻole lākou e hoʻohana i nā mea kanu nitrate synthetic.
Eia nō naʻe, aia kekahi ʻokoʻa koʻikoʻi ma waena o kahi e loaʻa ai nā nitrates a me nā nitrite: ʻiʻo a i ʻole nā mea kanu. Hoʻopili kēia inā he carcinogenic lākou.
ʻO ka hui me ka maʻi kanesa
ʻAʻole inert nā nitrates iā lākou iho, ʻo ia hoʻi, ʻaʻole hiki ke komo i nā hopena kemika i loko o ke kino. Akā, ʻoi aku ka ʻoi aku o ka hana ʻana o nā nitrites a me nā kemika a lākou e hana ai.
ʻO ka hapa nui o nā nitrites a mākou e hālāwai ai ʻaʻole ia e hoʻopau pololei ʻia, akā ua hoʻololi ʻia mai ka nitrates e ka bacteria i loko o ka waha. ʻO ka mea hoihoi, hōʻike nā haʻawina e hiki ke hoʻemi i ka hoʻohana ʻana i ka waha antibacterial i ka hana nitrite waha.
Ke ale ʻia nā nitrites i hana ʻia i loko o ko mākou waha, hana lākou i nā nitrosamines i loko o ke kaiapuni ʻakika o ka ʻōpū, he carcinogenic kekahi o ia mau mea a ua hoʻopili ʻia i ka maʻi maʻi ʻōpū. Akā, pono kēia i kahi kumu o nā amines, nā kemika i loaʻa i ka nui o nā meaʻai protein. Hiki ke hana pololei ʻia nā Nitrosamines i ka meaʻai ma o ka kuke ʻana i nā wela kiʻekiʻe, e like me ka palai puaʻa.
"ʻAʻole nui nā nitrates / nitrites he carcinogenic, akā pehea lākou i hoʻomākaukau ai a he mea nui ko lākou kaiapuni. No ka laʻana, ʻo nā nitrites i loko o nā ʻiʻo i hoʻoponopono ʻia e pili kokoke ana i nā protein. ʻOi aku no nā amino acids. Ke hoʻomoʻa ʻia i nā wela kiʻekiʻe, hiki iā lākou ke hana maʻalahi i nā nitrosamines kumu, "wahi a Keith Allen, ka luna hoʻokele o ka ʻepekema a me nā pilina lehulehu no ka World Cancer Research Foundation.
Akā, hoʻohui ʻo Allen ʻo nā nitrites kekahi o nā kumu e hoʻoikaika ai ka ʻiʻo i hoʻōla ʻia i ka maʻi ʻōpū, a ʻaʻole maopopo ko lākou koʻikoʻi. ʻO nā kumu ʻē aʻe e hiki ke hoʻopili ʻia, ʻo ia ka hao, polycyclic aromatic hydrocarbons i hana ʻia i loko o ka ʻiʻo i puhi ʻia, a me nā amine heterocyclic i hana ʻia i ka wā e kuke ʻia ai ka ʻiʻo ma luna o ke ahi hāmama, a ʻo ia hoʻi ka mea e hoʻoulu ai i nā ʻōpū.
Kemika maikaʻi
ʻAʻole ʻino loa nā Nitrites. Ke ulu nei nā hōʻike o kā lākou mau pono no ka ʻōnaehana cardiovascular a ma waho, mahalo i ka nitric oxide.
I ka makahiki 1998, ua loaʻa i ʻekolu mau ʻepekema ʻAmelika ka makana Nobel no kā lākou ʻike e pili ana i ka hana o ka nitric oxide i ka ʻōnaehana cardiovascular. Ua ʻike mākou i kēia manawa he mea ia e hoʻonui i nā kīʻaha koko, hoʻohaʻahaʻa i ke koko, a hakakā i nā maʻi. ʻO ka hiki ke hana i ka nitric oxide i pili i ka maʻi puʻuwai, ka maʻi diabetes, a me ka erectile dysfunction.
ʻO kahi ala e hana ai ke kino i ka nitric oxide ma o ka amino acid i kapa ʻia ʻo arginine. Akā ua ʻike ʻia i kēia manawa hiki i ka nitrates ke kōkua nui i ka hoʻokumu ʻana o ka nitric oxide. Ua ʻike nō hoʻi mākou he mea koʻikoʻi paha kēia no ka poʻe ʻelemakule, ʻoiai ke emi nei ka hana ʻana o ka nitric oxide ma o arginine me ka ʻelemakule.
Eia nō naʻe, ʻoiai ʻo nā nitrates i loaʻa i ka ham e like me nā mea āu e ʻai ai me ka salakeke, ʻoi aku ka maikaʻi o nā mea kanu.
"Ua ʻike mākou i ka nui o nā pilikia e pili ana i ka nitrate a me ka nitrite mai ka ʻiʻo no kekahi mau maʻi maʻi, akā ʻaʻole mākou i ʻike i nā pilikia e pili ana i ka nitrate a i ʻole ka nitrite mai nā mea kanu. Ma ka liʻiliʻi ma nā haʻawina nānā nui kahi i manaʻo ʻia ai ka ʻai ʻana mai nā nīnau nīnau pilikino, "wahi a Amanda Cross, ka mea aʻo i ka maʻi maʻi maʻi maʻi ma Imperial College London.
Hoʻohui ʻo Cross he "manaʻo kūpono" ʻaʻole i hōʻeha ʻia nā nitrates i nā lau lau. ʻO kēia no ka mea he waiwai lākou i ka protein a loaʻa pū kekahi mau mea pale: ka huaora C, polyphenols a me nā fibers e hōʻemi i ka hoʻokumu ʻana o ka nitrosamine. No laila ke hele mai ka hapa nui o nā nitrates i kā mākou meaʻai mai nā mea kanu a hoʻoulu i ka hoʻokumu ʻana o ka nitric oxide, maikaʻi paha lākou no mākou.
Ua hele hou aku kekahi loea nitric oxide, me ka hoʻopaʻapaʻa ʻana he hapa ka hapa nui o mākou i nā nitrates/nitrites a pono lākou e helu ʻia he mau meaʻai koʻikoʻi e hiki ke kōkua i ka pale ʻana i ka puʻuwai a me ka hahau ʻana.
ʻO ka nui kūpono
ʻAʻole hiki ke koho hilinaʻi i ka ʻai ʻana i nā nitrates no ka mea he loli nui nā pae ʻai o nā nitrates. "Hiki i nā pae ke hoʻololi i 10 mau manawa. ʻO ia ke ʻano o nā haʻawina e nānā ana i nā hopena olakino o ka nitrate pono e wehewehe pono ʻia, no ka mea, ʻo ka "nitrate" hiki ke lilo i mea hōʻailona o ka ʻai ʻana i nā mea kanu," wahi a Günther Kulne, ka mea maʻi ʻai meaʻai mai ke Kulanui o Heluhelu ma UK.
Ua ʻae ʻia kahi hōʻike 2017 e ka European Food Safety Authority i ka nui o kēlā me kēia lā i hiki ke hoʻopau ʻia i ke ola me ka ʻole o ka pilikia olakino. Ua like ia me 235 mg o ka nitrate no ke kanaka 63,5 kg. Akā ʻike pū ka hōʻike e hiki i nā poʻe o nā makahiki āpau ke maʻalahi ma mua o kēia helu.
ʻOi aku ka haʻahaʻa loa o ka lawe ʻana i ka nitrite (ʻo 1,5mg ka nui o ka UK i kēlā me kēia lā) a ua hōʻike ka European Food Safety Authority i ka ʻike ʻana i nā preservatives nitrite i loko o nā palena palekana no nā heluna kanaka a pau ma ʻEulopa, koe wale no ka hapa iki. i nā keiki i nā meaʻai kiʻekiʻe i nā mea hoʻohui.
Ke hoʻopaʻapaʻa nei kekahi poʻe akamai i ka wā kahiko o ka ʻae ʻana i kēlā me kēia lā no nā nitrates/nitrites, a ʻaʻole palekana wale nā pae kiʻekiʻe, akā pono ke hele mai lākou mai nā mea kanu ma mua o nā ʻiʻo i hana ʻia.
Ua ʻike ʻia ʻo ka lawe ʻana o 300-400 mg o nā nitrates e pili ana me ka emi ʻana o ke koko. Hiki ke loaʻa kēia maʻi mai hoʻokahi salakeke nui me ka arugula a me ka spinach, a i ʻole mai ka wai beetroot.
ʻO ka hope loa, inā ʻoe e lawe i ka lāʻau ʻawaʻawa a i ʻole ka lāʻau lapaʻau, e like me nā manawa a pau, i ka dosage. ʻO 2-9 grams (2000-9000 mg) o ka nitrate hiki ke lilo i mea ʻawaʻawa, e pili ana i ka hemoglobin. Akā paʻakikī ke loaʻa ʻana o kēlā nui i ka noho hoʻokahi a ʻaʻole paha e hele mai mai ka meaʻai ponoʻī, ma kahi o ka wai i hoʻopōʻino ʻia.
No laila, inā loaʻa iā lākou mai nā mea kanu a me nā mea kanu, a laila ʻoi aku ka maikaʻi o nā nitrates a me nā nitrates ma mua o nā hemahema.