{"id":9810,"date":"2024-09-17T10:04:30","date_gmt":"2024-09-17T10:04:30","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=9810"},"modified":"2024-09-17T10:04:30","modified_gmt":"2024-09-17T10:04:30","slug":"food-nutrition-fortifier","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/food-nutrition-fortifier\/","title":{"rendered":"Hvad er niacin i n\u00e6ringsberigelse af f\u00f8devarer?"},"content":{"rendered":"<h1>Hvad er niacin i n\u00e6ringsberigelse af f\u00f8devarer?<\/h1>\n<p>Hvad er niacin?<br \/>\nNiacin er et vandopl\u00f8seligt vitamin, ogs\u00e5 kendt som vitamin B3, niacin er en generel betegnelse for biologisk aktiv pyridin-3-carboxylsyre og dens derivater, og niacinamid er dets vigtigste form i dyr. Niacin har en enkel kemisk struktur, stabile fysiske og kemiske egenskaber og er ikke let at \u00f8del\u00e6gge af syre, alkali og varme, s\u00e5 det anses for at v\u00e6re det mest stabile vitamin.<br \/>\nNiacins fysiologiske funktion<br \/>\n1. Deltage i metabolismen af stof og energi i kroppen. Nikotinsyre danner coenzym I og coenzym II i kroppen i form af nikotinamid, og nikotinamiddelen af disse to coenzymstrukturer har reversible hydrogenerings- og dehydrogeneringsegenskaber og spiller en rolle i overf\u00f8rslen af brint under cellul\u00e6r biologisk oxidation.<br \/>\n2. Relateret til syntesen af nukleinsyrer. Glukose kan producere 5-phosphat ribose gennem den metaboliske vej af pentosephosphat, som er den vigtigste vej til riboseproduktion i kroppen, og ribose er et vigtigt r\u00e5materiale til syntese af nukleinsyrer. Coenzym I og Coenzym II, der best\u00e5r af niacin, er brintoverf\u00f8rere i den f\u00f8rste biokemiske reaktion i glukosefosfat-pentosemetabolismen.<br \/>\n3. S\u00e6nk kolesteroltallet i blodet. Tag 1-2 g niacin dagligt for at s\u00e6nke kolesterolniveauet i blodet. Princippet kan v\u00e6re, at det griber ind i syntesen af kolesterol eller lipoprotein, eller at det fremmer syntesen af lipoproteinenzymer.<br \/>\n4. Komponenter i glukosetolerancefaktoren. Glukosetoleransfaktor (GTF) er et kompleks, der best\u00e5r af trivalent krom, niacin og glutathion. Det kan v\u00e6re en co-faktor til insulin, som kan \u00f8ge udnyttelsen af glukose og fremme omdannelsen af glukose til fedt.<br \/>\nMangel og overskud<br \/>\nSelvom indholdet af niacin i majs er h\u00f8jere end i ris, er niacinen i majs af den kombinerede type, som ikke er let at blive absorberet og udnyttet af menneskekroppen, men tils\u00e6tning af alkali kan g\u00f8re den kombinerede type niacin til fri type niacin, som er let at blive udnyttet af kroppen. For eksempel, n\u00e5r man lejlighedsvis laver polenta, dampede boller og indsatte tortillas og tils\u00e6tter bagepulver til majsmel, er maden lavet med majsmel ikke kun farve, aroma og smag god, men ogs\u00e5 kombinationen af niacin er let at blive absorberet og brugt af menneskekroppen.<br \/>\n(Bem\u00e6rk: Brug en lille m\u00e6ngde alkali! Alkalier er en formidabel fjende for de fleste vitaminer. B1-vitamin, B2-vitamin og C-vitamin er meget f\u00f8lsomme over for alkali og vil blive \u00f8delagt i et alkalisk milj\u00f8, hvilket p\u00e5virker optagelsen. TB-patienter, der tager store m\u00e6ngder af anti-tuberkulosemedicinen isoniazid i lang tid, vil p\u00e5virke omdannelsen af tryptofan til niacin, s\u00e5 det kan ogs\u00e5 for\u00e5rsage niacinmangel.<br \/>\nN\u00e5r der er mangel p\u00e5 niacin, blokeres syntesen af coenzym I og coenzym II i kroppen, og visse fysiologiske oxidationsprocesser hindres, det vil sige B3-vitaminmangel - fnat. De typiske symptomer er dermatitis, diarr\u00e9 og demens, de s\u00e5kaldte \"triple-D-symptomer\". Dermatitis opst\u00e5r p\u00e5 de udsatte dele af kroppen, s\u00e5som kinderne, h\u00e5ndryggene og fodryggene, og er symmetrisk. Der er en klar gr\u00e6nse mellem den ber\u00f8rte hud og den sunde hud, og de fleste af dem er solpletlignende \u00e6ndringer, huden bliver r\u00f8dbrun, epidermis er ru, afkalkning, pigmentering og halsdermatitis er mere almindelig. De vigtigste symptomer p\u00e5 ford\u00f8jelseskanalen var tab af appetit, dyspepsi og diarr\u00e9. Samtidig kan der forekomme erosion af mundslimhinden og tungen og skarlagensr\u00f8d tunge. Neuropsykiatriske symptomer omfatter depression, angst, hukommelsestab, apati og demens, og nogle kan f\u00e5 mani og hallucinationer. Samtidig kan muskeltremor, senerefleksallergi eller forsvinde. B3-vitaminmangel eksisterer ofte sammen med B1- og B2-vitaminmangel.<br \/>\nBivirkningerne ved overdreven indtagelse af niacin viser sig hovedsageligt som r\u00f8dme i huden, ubehag i \u00f8jnene, kvalme og opkastning, hyperurik\u00e6mi og unormal glukosetolerance osv. Langvarigt stort indtag kan for\u00e5rsage leverskader.<br \/>\nBem\u00e6rk: Kroppens ern\u00e6ringsstatus kan vurderes ved at m\u00e5le forholdet mellem 2-pyridon\/N-methylnicotinamid i urinen, urinbelastningstest, forholdet mellem N-methylnicotinamid og kreatinin og indholdet af NAD i de r\u00f8de blodlegemer.<br \/>\nReferenceindtag og f\u00f8devarekilde<br \/>\nReferenceindtaget af niacin b\u00f8r tage h\u00f8jde for energiforbrug og proteinindtag. Niacin kan ud over at blive indtaget direkte fra maden ogs\u00e5 omdannes fra tryptofan i kroppen, hvor gennemsnitligt 60 mg tryptofan omdannes til 1 mg niacin. Derfor b\u00f8r referenceindtaget af B3-vitamin i kosten udtrykkes som niacin\u00e6kvivalent (NE).<br \/>\nNiacin\u00e6kvivalent (mgNE) = niacin (mg) +1\/60 tryptofan (mg) referenceindtag af B3-vitamin i kosten for kinesiske indbyggere, RNI for voksne m\u00e6nd var 14 mg NE\/d, RNI for kvinder var 13 mg NE\/d, og UL var 35 mg NE\/d.<br \/>\nNiacin findes i stor udstr\u00e6kning i forskellige animalske og vegetabilske f\u00f8devarer. Niacin er hovedsageligt til stede i vegetabilske f\u00f8devarer, og niacinamid er hovedsageligt til stede i animalske f\u00f8devarer. Niacin og niacinamid findes i rigelige m\u00e6ngder i lever, nyrer, magert fjerkr\u00e6k\u00f8d, fisk, fuldkorn og n\u00f8dder. Selv om indholdet af niacin i m\u00e6lk og \u00e6g er lavt, er indholdet af tryptofan h\u00f8jt, hvilket kan omdannes til niacin i kroppen.<br \/>\nBrugen af niacin som et ern\u00e6ringsm\u00e6ssigt berigelsesmiddel<br \/>\nI henhold til bestemmelserne i \"GB 14880 National Standard for Food Safety Standard for the use of Food nutrition fortifier\" er det tilladt at bruge niacin som et ern\u00e6ringsm\u00e6ssigt berigelsesmiddel med f\u00f8lgende sorter, anvendelsesomr\u00e5de og anvendelse:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9811\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/09\/1-26.png\" alt=\"\" width=\"645\" height=\"289\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/09\/1-26.png 645w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/09\/1-26-18x8.png 18w\" sizes=\"(max-width: 645px) 100vw, 645px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>Hvad er niacin i n\u00e6ringsberigelse af f\u00f8devarer? Hvad er niacin? Niacin er et vandopl\u00f8seligt vitamin, ogs\u00e5 kendt som vitamin B3, niacin er en generel betegnelse for biologisk aktiv pyridin-3-carboxylsyre og dens derivater, og niacinamid er dets vigtigste form i dyr. Niacin har en enkel kemisk struktur, stabile fysiske og kemiske egenskaber og er ikke [...].<\/p>","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is niacin of food nutrition fortifier? - 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\/da\/food-nutrition-fortifier\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is niacin of food nutrition fortifier? - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"What is niacin of food nutrition fortifier? 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What is niacin? Niacin is a water-soluble vitamin, also known as vitamin B3, niacin is a general term for biologically active pyridine-3-carboxylic acid and its derivatives, and niacinamide is its main form in animals. 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