Ngwaahịa

Beta-carotene

Beta-carotene bụ carotenoid anụ ahụ nke a na-ahụkarị na akwụkwọ ndụ akwụkwọ ndụ na akwụkwọ nri na mkpụrụ osisi.Beta-carotene bụ ngwakọta tetraterpenoid, nke nwere nkekọ isoprene anọ.O nwere otu mgbanaka beta-violon na nsọtụ nke ọ bụla nke molekul.Enwere ike imepụta molekul vitamin A abụọ site na nkwụsị etiti.Ọ nwere ọtụtụ nkekọ abụọ na conjugates n'etiti agbụ abụọ ahụ.Molecules nwere ogologo njikọ chromophores okpukpu abụọ, ya mere ha nwere ihe onwunwe nke mmịnye ọkụ ma mee ka ha na-acha odo odo.Ụdị beta-carotene bụ isi bụ trans, 9-cis, 13-cis na 15-cis.Enwere ihe karịrị 20 isomers nke beta-carotene, bụ nke a na-esighi ike na mmiri ma na-agbaze ntakịrị na mmanụ ihe oriri.Ha na-agbaze nke ọma na aliphatic na aromatic hydrocarbons, na-agbaze ngwa ngwa na chloroform, anaghị eguzosi ike n'ihe na kemịkal, ma dị mfe oxidize na ọkụ na kpo oku.

Enwere ike imepụta beta-carotene site na njikọ kemịkalụ, mmịpụta osisi na gbaa ụka microbial.Dị ka usoro mmepụta dị iche iche si dị, enwere ike kewaa ya ụzọ abụọ: njikọ chemical nke beta-carotene na beta-carotene eke.Ka ọ dị ugbu a, ọtụtụ n'ime ha bụ kemikal.N'ihi na beta-carotene eke nwere ezigbo mgbochi chromosomal aberration, mgbochi cancer mmetụta na ike physiological ọrụ, price nke eke beta-carotene dị elu.Ọ dị okpukpu abụọ karịa kemikal.

A maara Beta-carotene dị ka isi iyi nke vitamin A. A na-eji beta-carotene arụ ọrụ na mbụ na nri, ihe ịchọ mma na ngwaahịa ahụike.Site na mmepe nke toxicology na nkà na ụzụ nyocha, nchọpụta ahụ na-egosi na ọ bụ ezie na ịdị ọcha nke beta-carotene na-emepụta site na usoro kemịkalụ dị oke elu na ọnụ ahịa mmepụta dị ala, ọ dị mfe itinye obere kemịkalụ na-egbu egbu na ngwaahịa.Ya mere, site na mmụba nke ihe ọmụma na-aga n'ihu, mmịpụta eke nke beta-carotene ga-ewere ọnọdụ na-arụsi ọrụ ike n'ahịa.Mana n'ihi ihe na-agbaze abụba nke beta-carotene, oke ngwa ya ejedebeghị nke ukwuu.Ụfọdụ ọmụmụ emewo ka mmiri solubility nke beta-carotene dịkwuo mma site na saponification na emulsification, ma usoro a nwere ogologo oge, na-enwe mmetụta dị ukwuu na nkwụsi ike nke beta-carotene, ma nwee ọnụ ahịa dị elu.Mwepụta nke beta-carotene sitere n'okike, ihe mgbaze organic n'ọtụtụ ụzọ eji eme ugbu a, yana nsogbu fọdụrụnụ nke ihe mgbaze na-egbu egbu anọwo na-amachibido iji ngwaahịa mmịpụta eme ihe, na-ebutekwu nchekwa nri na nsogbu mmetọ gburugburu ebe obibi.A kọwokwa mmịpụta nke beta-carotene na-agbaze mmiri, mana mmiri-soluble nke beta-carotene adịghị mma, na-abụkarị site n'enyemaka nke enzymes, ya mere ọnụ ahịa dị elu na ngwa adịghị mma.E jiri ya tụnyere usoro mmịpụta a na-ahụkarị, usoro mmịpụta ultrasonic nwere uru nke ịdị mfe, ọnụ ọgụgụ dị elu na obere oge ọrụ.Ya mere, dị ka ụzọ ọhụrụ iji wepụ mmanya-soluble beta-carotene, ultrasonic mmịpụta nwere ezigbo ngwa atụmanya na ubi a.

Ngwa nke beta-carotene

Dị ka ụdị agba agba mmanụ na-agbaze mmanụ, beta-carotene anabatala nke ọma site na ụlọ ọrụ nri n'ihi na agba ya nwere ike kpuchie usoro agba niile site na ọbara ọbara ruo odo n'ihi ntinye ya dị iche iche.Ọ dabara nke ọma maka mmepe nke ngwaahịa mmanu na ngwaahịa protein, dị ka margarine, ngwaahịa a nụchara anụcha azụ, ngwaahịa anaghị eri anụ, noodles nri ngwa ngwa na ihe ndị ọzọ.