{"id":8059,"date":"2024-08-11T18:45:14","date_gmt":"2024-08-11T18:45:14","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8059"},"modified":"2024-08-11T18:45:14","modified_gmt":"2024-08-11T18:45:14","slug":"tartary-buckwheat-polypeptides","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/hu\/tartary-buckwheat-polypeptides\/","title":{"rendered":"T\u00e1trai hajdina polipeptidek tiszt\u00edt\u00e1sa, szerkezete \u00e9s in vitro antioxid\u00e1ns aktivit\u00e1sa"},"content":{"rendered":"<p>T\u00e1trai hajdina polipeptidek tiszt\u00edt\u00e1sa, szerkezete \u00e9s in vitro antioxid\u00e1ns aktivit\u00e1sa<br \/>\nA hajdina, m\u00e1s n\u00e9ven fekete b\u00faza, hajdina, h\u00e1romsz\u00f6gb\u00faza stb. a Polygonaceae csal\u00e1dba \u00e9s a hajdina nemzets\u00e9gbe tartozik. K\u00edn\u00e1b\u00f3l sz\u00e1rmaz\u00f3 k\u00e9tszik\u0171 n\u00f6v\u00e9ny, amely a vil\u00e1g egyik legkor\u00e1bbi kult\u00farn\u00f6v\u00e9nye. K\u00edn\u00e1ban is egyed\u00fcl\u00e1ll\u00f3 kis szem\u0171 gabonan\u00f6v\u00e9ny, amely egyes\u00edti az \u00e9lelmiszert \u00e9s a gy\u00f3gyszert. A Compendium of Materia Medica szerint a keser\u0171 hajdina keser\u0171, enyhe \u00e9s hideg \u00edz\u0171, \u00e9s a qi cs\u00f6kkent\u00e9s\u00e9re, a belek kisz\u00e9les\u00edt\u00e9s\u00e9re, a szellem fenntart\u00e1s\u00e1ra, a qi kering\u00e9s\u00e9nek el\u0151seg\u00edt\u00e9s\u00e9re \u00e9s a v\u00e9r pang\u00e1s\u00e1nak megsz\u00fcntet\u00e9s\u00e9re szolg\u00e1l. Kor\u00e1bbi tanulm\u00e1nyok kimutatt\u00e1k, hogy a keser\u0171 hajdina szemekb\u0151l nyert nyers peptidkivonatok \u00e9s azok feh\u00e9rjehidrol\u00edzise k\u00fcl\u00f6nb\u00f6z\u0151 biol\u00f3giai aktivit\u00e1sokkal rendelkezik, mint p\u00e9ld\u00e1ul koleszterinszint-cs\u00f6kkent\u0151, r\u00e1k- \u00e9s daganatmegel\u0151z\u0151, hiperlipid\u00e9mia-megel\u0151z\u0151 \u00e9s antioxid\u00e1ns hat\u00e1s\u00fa.<br \/>\nA bioakt\u00edv peptideknek sz\u00e1mos biol\u00f3giai funkci\u00f3juk van, amelyek szorosan kapcsol\u00f3dnak aminosav\u00f6sszet\u00e9tel\u00fckh\u00f6z \u00e9s szekvenci\u00e1jukhoz. Ez\u00e9rt a peptidek hat\u00e9konys\u00e1g\u00e1nak tanulm\u00e1nyoz\u00e1s\u00e1hoz a szerkezet\u00fck azonos\u00edt\u00e1sa a kulcs. A peptidek szerkezete \u00e9s hat\u00e9konys\u00e1ga k\u00f6z\u00f6tti kapcsolat tanulm\u00e1nyoz\u00e1s\u00e1nak d\u00f6nt\u0151 l\u00e9p\u00e9se az elv\u00e1laszt\u00e1s \u00e9s tiszt\u00edt\u00e1s. Az \u00e1ltal\u00e1nosan haszn\u00e1lt peptid elv\u00e1laszt\u00e1si \u00e9s tiszt\u00edt\u00e1si technik\u00e1k k\u00f6z\u00e9 tartozik a kromatogr\u00e1fia, membr\u00e1n elv\u00e1laszt\u00e1s, elektrofor\u00e9zis stb. Ezek k\u00f6z\u00fcl a kromatogr\u00e1fi\u00e1s technol\u00f3gia a legelterjedtebb. A feh\u00e9rje-hidroliz\u00e1tumok \u00f6sszetett \u00f6sszet\u00e9tele miatt a peptidek elv\u00e1laszt\u00e1s\u00e1nak \u00e9s d\u00fas\u00edt\u00e1s\u00e1nak el\u00e9r\u00e9se \u00e9rdek\u00e9ben gyakran t\u00f6bb m\u00f3dszert kombin\u00e1lva alkalmaznak az elv\u00e1laszt\u00e1shoz \u00e9s tiszt\u00edt\u00e1shoz. Kor\u00e1bbi tanulm\u00e1nyok kimutatt\u00e1k, hogy a tat\u00e1r hajdina feh\u00e9rje vagy az enzimatikus hidrol\u00edzis term\u00e9kei k\u00fcl\u00f6nb\u00f6z\u0151 biol\u00f3giai aktivit\u00e1sokkal rendelkeznek, de biol\u00f3giai aktivit\u00e1si mechanizmusaik m\u00e9g nem nagyon vil\u00e1gosak, \u00e9s kev\u00e9s jelent\u00e9s van a tat\u00e1r hajdina akt\u00edv peptidjeinek szerkezeti elemz\u00e9s\u00e9r\u0151l \u00e9s biol\u00f3giai aktivit\u00e1s\u00e1r\u00f3l. Ma \u00e9s munkat\u00e1rsai n\u00e9gy antioxid\u00e1ns peptidet (WPL, VPW, VFPW \u00e9s PW) izol\u00e1ltak \u00e9s azonos\u00edtottak em\u00e9sztett hajdinafeh\u00e9rj\u00e9b\u0151l, amelyek er\u0151sebb k\u00e9pess\u00e9ggel rendelkeznek az ABTS szabad gy\u00f6k\u00f6k elnyel\u00e9s\u00e9re, mint a hajdinafeh\u00e9rje-kever\u00e9kek. Luo l\u00fagos prote\u00e1zzal hidroliz\u00e1lta a tat\u00e1r hajdinafeh\u00e9rj\u00e9t, hogy tat\u00e1r hajdinafeh\u00e9rje-hidroliz\u00e1tumot kapjon. Ultrasz\u0171r\u00e9ses elv\u00e1laszt\u00e1s, anioncser\u00e9l\u0151 kromatogr\u00e1fia \u00e9s ford\u00edtott nagy teljes\u00edtm\u00e9ny\u0171 folyad\u00e9kkromatogr\u00e1fia ut\u00e1n a tat\u00e1r hajdina akt\u00edv peptidkomponens\u00e9t sikeresen elv\u00e1lasztott\u00e1k, \u00e9s aminosav szekvenci\u00e1ja Ala Phe Tyr Arg Trp volt.<br \/>\nEbben a tanulm\u00e1nyban a tat\u00e1r hajdina funkcion\u00e1lis kivonat\u00e1nak hullad\u00e9kmaradv\u00e1ny\u00e1t haszn\u00e1lt\u00e1k nyersanyagk\u00e9nt a tat\u00e1r hajdina nyersfeh\u00e9rj\u00e9j\u00e9nek kivon\u00e1s\u00e1ra, \u00e9s n\u00f6v\u00e9nyi laktobacillusokkal t\u00f6rt\u00e9n\u0151 ferment\u00e1ci\u00f3val tat\u00e1r hajdina peptideket \u00e1ll\u00edtottak el\u0151. A kapott tat\u00e1rb\u00faza polipeptid ferment\u00e1ci\u00f3s levet makropor\u00f3zus adszorpci\u00f3s gyant\u00e1val, dextr\u00e1nc\u00e9llal \u00e9s folyad\u00e9kkromatogr\u00e1fi\u00e1val tiszt\u00edtottuk, \u00e9s meghat\u00e1roztuk antioxid\u00e1ns aktivit\u00e1s\u00e1t. Azonos\u00edtottuk az er\u0151s antioxid\u00e1ns aktivit\u00e1ssal rendelkez\u0151 kiv\u00e1lasztott r\u00e9szek szerkezet\u00e9t, \u00e9s felt\u00e1rtuk a tat\u00e1r hajdina polipeptid nyers kivonat\u00e1nak antioxid\u00e1ns aktivit\u00e1s\u00e1nak f\u0151 forr\u00e1s\u00e1t, hogy elm\u00e9leti alapot biztos\u00edtsunk a tat\u00e1r hajdina polipeptid tov\u00e1bbi kutat\u00e1s\u00e1hoz \u00e9s funkcion\u00e1lis \u00e9lelmiszerekben \u00e9s eg\u00e9szs\u00e9g\u00fcgyi term\u00e9kekben val\u00f3 alkalmaz\u00e1s\u00e1hoz.<\/p>\n<p>&nbsp;<\/p>\n<p>A Sephadex G-15 gl\u00fck\u00e1n g\u00e9l elv\u00e1laszt\u00e1sa \u00e9s tiszt\u00edt\u00e1sa ut\u00e1n a T-3 komponens ABTS \u00e9s DPPH szabad gy\u00f6kfog\u00f3 kapacit\u00e1sa volt a legjobb, \u00e9s a gy\u00f6kfog\u00f3 ar\u00e1ny 96%, illetve 94% volt. A makropor\u00f3zus adszorpci\u00f3s gyant\u00e1val tiszt\u00edtott tat\u00e1r hajdina polipeptid er\u0151s g\u00e1tl\u00f3 hat\u00e1ssal rendelkezik a DPPH-ra \u00e9s az ABTS-re, hasonl\u00f3an a g\u00e9llel elv\u00e1lasztott \u00e9s tiszt\u00edtott T-3 komponenshez, \u00e9s jelent\u0151s antioxid\u00e1ns aktivit\u00e1st mutat.<br \/>\nAz anyagazonos\u00edt\u00e1st a folyad\u00e9kkromatogr\u00e1fi\u00e1val elv\u00e1lasztott T-3-1 komponensen v\u00e9gezt\u00e9k el, \u00e9s \u00f6sszesen 249 feh\u00e9rj\u00e9t \u00e9s 2324 peptidet azonos\u00edtottak a T-3-1 komponensb\u0151l. Az azonos\u00edtott peptidek t\u00f6bbnyire 10-15 aminosavb\u00f3l \u00e1llnak, \u00e9s a biol\u00f3giailag akt\u00edv peptidek hossztartom\u00e1ny\u00e1ba tartoznak. A T-3-1 komponens t\u00f6megspektrometri\u00e1s azonos\u00edt\u00e1si eredm\u00e9nyei alapj\u00e1n a f\u0151 antioxid\u00e1ns peptidek aminosav-szekvenci\u00e1i a fenilalanin-prolin-tirozin (Phe Pro Tyr, FPY) \u00e9s a tirozin-leucin-prolin-fenilalanin (Tyr Leu Pro Phe, YLPF).<br \/>\nA tat\u00e1r hajdina peptidek antioxid\u00e1ns kapacit\u00e1sa k\u00fcl\u00f6nb\u00f6z\u0151 tisztas\u00e1g\u00faak. A T-3 komponens tov\u00e1bbi elv\u00e1laszt\u00e1sa \u00e9s folyad\u00e9kkromatogr\u00e1fi\u00e1s tiszt\u00edt\u00e1sa ut\u00e1n a T-3-1 komponenst kaptuk. B\u00e1r a tat\u00e1r hajdina peptidek tisztas\u00e1ga el\u00e9rte a 98%-t, a DP-PH \u00e9s az ABTS g\u00e1tl\u00e1si r\u00e1t\u00e1ja m\u00e1r nem fokoz\u00f3dott, hanem enyh\u00e9n cs\u00f6kkent, 89% \u00e9s 90% g\u00e1tl\u00e1si r\u00e1t\u00e1val. A ferment\u00e1ci\u00f3s m\u00f3dszerrel el\u0151\u00e1ll\u00edtott tat\u00e1r hajdina peptidek antioxid\u00e1ns aktivit\u00e1sa nem teljesen pozit\u00edvan korrel\u00e1lhat a peptid tisztas\u00e1g\u00e1val. Ha a tisztas\u00e1got bizonyos m\u00e9rt\u00e9kig n\u00f6velj\u00fck, a peptidek antioxid\u00e1ns aktivit\u00e1sa val\u00f3j\u00e1ban cs\u00f6kken.<\/p>","protected":false},"excerpt":{"rendered":"<p>Purification, Structure, and In vitro Antioxidant Activity of Tartary Buckwheat Polypeptides Buckwheat, also known as black wheat, buckwheat, triangle wheat, etc., belongs to the family Polygonaceae and the genus Buckwheat. It is a dicotyledonous plant that originated in China and is one of the earliest cultivated crops in the world. It is also a unique [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Purification, Structure, and In vitro Antioxidant Activity of Tartary Buckwheat Polypeptides - China Chemical Manufacturer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangextracts.com\/hu\/tartary-buckwheat-polypeptides\/\" \/>\n<meta property=\"og:locale\" content=\"hu_HU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Purification, Structure, and In vitro Antioxidant Activity of Tartary Buckwheat Polypeptides - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Purification, Structure, and In vitro Antioxidant Activity of Tartary Buckwheat Polypeptides Buckwheat, also known as black wheat, buckwheat, triangle wheat, etc., belongs to the family Polygonaceae and the genus Buckwheat. 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