He aha ka peptide?

ʻO ka Peptide e pili ana i kahi ʻano pūhui nona ka molecular structure ma waena o ka amino acid a me ka protein, ua haku ʻia he 20 mau ʻano amino acid ma nā ʻano like ʻole a me nā hoʻonohonoho ʻana, mai nā dipeptides a i nā polypeptides paʻakikī a i ʻole nā ​​​​poʻo.Loaʻa i kēlā me kēia peptide ko lākou ʻano ponoʻī, a ʻo ke ʻano o nā peptides ʻokoʻa e hilinaʻi ana i kā lākou hana ponoʻī.Loaʻa i ka peptide ka ʻike i loko o ke kino olaola, akā he hana physiological kū hoʻokahi kāna.Ma waena o lākou, hiki i nā peptides ke hoʻoponopono i ke kino hana physiological i kapa ʻia he peptide hana a i ʻole peptide hana biologically.I ke kakahiaka 20^thkenekulia, ka holomua o ka chemically synthesize dipeptide hōʻailona ke ʻano o ka ʻepekema peptide.

Hōʻike ka nui o nā ʻoiaʻiʻo ʻaʻole hiki i ka protein ke komo wale i ke ʻano o ka amino acid, akā e komo pū kekahi i nā ʻano peptides.Manaʻo ʻia ʻo nā dipeptides a me nā tripeptides e komo i loko o nā ʻōpū o ka ʻōpū a laila hydrolyzed e peptidase e komo i ke kahe koko ma ke ʻano o nā waikawa amino manuahi.Hoʻokomo ka mea lawe peptide i ke kahe.

Ua ʻike hou ʻia ka noiʻi ʻana ʻo ka protein i hoʻomoʻa ʻia e ke kino o ke kanaka i ke ʻano o ka oligopeptides ma hope o ka hana ʻana o nā enzymes i loko o ka digestive tract, a ʻo ka hapa o ka absorption ma ke ʻano o nā amino acids he liʻiliʻi loa.

Hoʻopili ʻia ka protein i ke ʻano o ka peptide, ʻaʻole ia e pale wale i ka hoʻokūkū ma waena o nā waikawa amino, akā e hōʻemi hoʻi i ka hopena hope o ke kaomi osmotic kiʻekiʻe ma ke kino o ke kanaka.No laila, hāʻawi i ka meaʻai meaʻai i ke kino o ke kanaka ma ke ʻano o ka peptide maikaʻi no ka hoʻokō wikiwiki ʻana i ka hopena hana o ka peptide.ʻO ka mea hou aku, ʻoi aku ka kiʻekiʻe o ka valence biological a me ka waiwai meaʻai o ka peptide ma mua o nā waikawa amino manuahi.No laila, ua lilo ka peptide collagen i wahi wela hou ma ke kahua o ka noiʻi ʻana i ka meaʻai protein, a ʻo ka peptide molecular liʻiliʻi a i ʻole ka oligopeptide e hana i ka meaʻai mālama olakino olakino he kumu ʻepekema.