{"id":9267,"date":"2024-08-23T08:08:14","date_gmt":"2024-08-23T08:08:14","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=9267"},"modified":"2024-08-23T08:08:14","modified_gmt":"2024-08-23T08:08:14","slug":"chitosan-deacetylated-chitin","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/tr\/chitosan-deacetylated-chitin\/","title":{"rendered":"Kitosan\u0131n (deasetil kitin) g\u0131dalardaki uygulamalar\u0131 nelerdir?"},"content":{"rendered":"<p>Deasetillenmi\u015f kitin olarak da bilinen kitosan, sel\u00fclozdan sonra do\u011fada en \u00e7ok bulunan ikinci biyopolimerdir ve \u00f6zellikle karides, yenge\u00e7, b\u00f6cek gibi eklembacakl\u0131lar ba\u015fta olmak \u00fczere bir\u00e7ok a\u015fa\u011f\u0131 hayvan\u0131n kabuklar\u0131nda ve ayr\u0131ca bakteri, alg ve mantar gibi a\u015fa\u011f\u0131 bitkilerin h\u00fccre duvarlar\u0131nda yayg\u0131n olarak bulunur. Y\u0131ll\u0131k biyosentezinin 1 milyar tondan fazla oldu\u011fu tahmin edilmektedir ve yenilenebilir devasa bir kaynakt\u0131r. Asetil grubu \u00e7\u0131kar\u0131ld\u0131ktan sonra kitinin \u00fcr\u00fcn\u00fc kitosand\u0131r.<\/p>\n<p><strong>Kitosan\u0131n inhibit\u00f6r mekanizmas\u0131<\/strong><\/p>\n<p>Kitin, kitosan ve t\u00fcrevleri bakteriler, mayalar ve mantarlar gibi bir\u00e7ok mikroorganizma i\u00e7in antibakteriyeldir. Kitosan\u0131n antimikrobiyal aktivitesinin kesin mekanizmas\u0131 hen\u00fcz tam olarak anla\u015f\u0131lamam\u0131\u015ft\u0131r, ancak \u00e7e\u015fitli teoriler \u00f6ne s\u00fcr\u00fclm\u00fc\u015ft\u00fcr.<\/p>\n<p>Pozitif y\u00fckl\u00fc kitosan molek\u00fclleri ile negatif y\u00fckl\u00fc mikrobiyal h\u00fccre membranlar\u0131n\u0131n etkile\u015fimi, protein benzeri bile\u015fenlerin h\u00fccrelerden s\u0131zmas\u0131na neden olur. <strong>Kitosan\u0131n \u015felatlama etkisi vard\u0131r<\/strong> ve baz\u0131 metal elementleri se\u00e7ici olarak \u015felatlayarak mikrobiyal b\u00fcy\u00fcmeyi ve toksin \u00fcretimini engeller.<\/p>\n<p>Kitosan ayr\u0131ca konak dokularda baz\u0131 savunma mekanizmalar\u0131n\u0131 aktive eder, su tutucu olarak g\u00f6rev yapar ve baz\u0131 enzimlerin aktivitesini inhibe eder. Kitosan mikroorganizmalar\u0131n \u00e7ekirde\u011fine n\u00fcfuz ederek DNA'ya ba\u011flan\u0131r, b\u00f6ylece mRNA ve protein sentezini inhibe eder. <strong>Kitosan, kitine g\u00f6re daha iyi \u00e7\u00f6z\u00fcn\u00fcrl\u00fc\u011fe ve bakteriyostatik \u00f6zelliklere sahiptir<\/strong> pH 6'dan d\u00fc\u015f\u00fck oldu\u011funda kitosan\u0131n C2 pozisyonundaki glukozamin monomerinin pozitif y\u00fck\u00fc nedeniyle <strong>.<\/strong><\/p>\n<p><strong>Kitosan\u0131n bakteriyostatik etkisi<\/strong><\/p>\n<p>Japon raporlar\u0131na g\u00f6re, kitosan Staphylococcus aureus ve Escherichia coli \u00fczerinde inhibit\u00f6r etkiye sahiptir. Kitosan\u0131n Staphylococcus aureus, Escherichia coli, Yersinia coli, Salmonella typhimurium ve Listeria monocytogenes olmak \u00fczere be\u015f yayg\u0131n g\u0131da zehirlenmesi bakterisi \u00fczerinde g\u00fc\u00e7l\u00fc inhibit\u00f6r etkiye sahip oldu\u011fu bildirilmi\u015ftir. Japonya kitosan\u0131 bir g\u0131da koruyucusu olarak patentlemi\u015ftir.<\/p>\n<p><strong>G\u0131da muhafazas\u0131nda kitosan uygulamas\u0131<\/strong><\/p>\n<p><strong>1. Et \u00fcr\u00fcnlerinin muhafazas\u0131nda uygulama<\/strong><\/p>\n<p>Ara\u015ft\u0131rmalar g\u00f6stermi\u015ftir ki <strong>kitosan\u0131n so\u011futulmu\u015f domuz eti \u00fczerinde belirgin tazelik koruma etkisi vard\u0131r<\/strong>. 1% kitosan sol\u00fcsyonu ve 2% asetik asit sol\u00fcsyonu kar\u0131\u015f\u0131m\u0131 ile domuz eti koruma ara\u015ft\u0131rmas\u0131n\u0131n vakumsuz ambalaj\u0131, 12 g\u00fcn sonra domuz eti depolamas\u0131n\u0131n kitosan asetik asit sol\u00fcsyonu ile 10 \u2103'de ba\u015f\u0131bo\u015f bakteri say\u0131s\u0131n\u0131n sadece 5.51 logaritmik de\u011ferde (9.36 logaritmik de\u011fer i\u00e7in kontrol grubu) oldu\u011funu buldu; 20 \u2103 kitosan kar\u0131\u015f\u0131m\u0131 hala depolama s\u00fcresini 2d uzatabilir.<\/p>\n<p>Baz\u0131 \u00e7al\u0131\u015fmalar, kitosan\u0131n deasetilasyon derecesi ne kadar y\u00fcksekse, kitosan\u0131n koruma etkisinin o kadar iyi oldu\u011funu, serbest amino asit oran\u0131n\u0131n 0.62% kitosan \u00e7\u00f6zeltisinin (2% asetik asit i\u00e7inde \u00e7\u00f6z\u00fclm\u00fc\u015f 1% konsantrasyonu) so\u011futulmu\u015f etin raf \u00f6mr\u00fcn\u00fc 9 g\u00fcne kadar \u00e7\u0131karabilece\u011fini g\u00f6stermi\u015ftir; kitosan konsantrasyonu ne kadar y\u00fcksekse, bakteriyostatik inhibisyonun etkisi o kadar iyi olur, 1.5% kitosan 1% asetik asit \u00e7\u00f6zeltisi raf \u00f6mr\u00fcn\u00fc 6 g\u00fcne kadar \u00e7\u0131karmak i\u00e7in kullan\u0131labilir. suda \u00e7\u00f6z\u00fcnen kitosan\u0131n koruma etkisi asitte \u00e7\u00f6z\u00fcnen kitosandan biraz daha d\u00fc\u015f\u00fckt\u00fcr. 2.5% suda \u00e7\u00f6z\u00fcn\u00fcr kitosan raf \u00f6mr\u00fcn\u00fc 5 g\u00fcne kadar \u00e7\u0131karabilir.<\/p>\n<p>Kitosan ve oligosakkarit taze s\u0131\u011f\u0131r eti, y\u00f6ntem 95% etanol, E vitamini, hidrolize kitosan, kitosan ve oligosakkarit, hidrolize pektin ve\/veya lizozim kar\u0131\u015f\u0131m\u0131 ile s\u0131\u011f\u0131r eti p\u00fcsk\u00fcrtmektir, s\u0131\u011f\u0131r eti korunmu\u015f 3d mikroorganizmalar kontrol grubuna g\u00f6re daha azd\u0131r.<\/p>\n<p>Baz\u0131 ki\u015filer 0.25% kitosan 1% asetik asit \u00e7\u00f6zeltisinin farkl\u0131 polimerizasyon derecelerini taze \u0130spanyol uskumrusu, k\u00fc\u00e7\u00fck sar\u0131kuyruk ve taze domuz eti koruma etkisi \u00fczerinde \u00e7al\u0131\u015fm\u0131\u015flard\u0131r, sonu\u00e7lar kitosan\u0131n d\u00fc\u015f\u00fck polimerizasyon derecesinin koruma etkisinin daha iyi oldu\u011funu g\u00f6stermektedir; ayn\u0131 zamanda karidesin korunmas\u0131n\u0131 da incelemi\u015flerdir, kitosan\u0131n sonu\u00e7lar\u0131 fitik asit ve sodyum bis\u00fclfit ve di\u011fer koruyuculardan daha iyidir.<\/p>\n<p><strong>2. G\u0131da ambalaj kaplar\u0131n\u0131n korunmas\u0131<\/strong><\/p>\n<p>Kitosan ve re\u00e7ine, g\u0131da kaplar\u0131n\u0131n yo\u011furma ve ekstr\u00fczyon haz\u0131rl\u0131\u011f\u0131 ile birlikte, en az\u0131ndan kab\u0131n i\u00e7 tabakas\u0131nda kitosan i\u00e7erir, laktobasillerin b\u00fcy\u00fcmesini engeller ve b\u00f6ylece g\u0131da koruma s\u00fcresini uzat\u0131r. Dokunmam\u0131\u015f kuma\u015flardan yap\u0131lm\u0131\u015f sel\u00fcloz liflerinin rejenerasyonu ve et, bal\u0131k ve di\u011fer g\u0131da ambalajlar\u0131n\u0131n s\u0131z\u0131nt\u0131y\u0131 emebildi\u011fi ve stafilokok bakterilerinin, Escherichia coli'nin ve di\u011fer mikroorganizmalar\u0131n b\u00fcy\u00fcmesini \u00f6nleyebildi\u011fi taze malzemelerin olu\u015fumu ile s\u0131zan kitosan laktik asit \u00e7\u00f6zeltisi.<\/p>","protected":false},"excerpt":{"rendered":"<p>Deasetillenmi\u015f kitin olarak da bilinen kitosan, sel\u00fclozdan sonra do\u011fada en bol bulunan ikinci biyopolimerdir ve \u00f6zellikle karidesler, yenge\u00e7ler, b\u00f6cekler gibi eklembacakl\u0131lar ba\u015fta olmak \u00fczere bir\u00e7ok alt hayvan\u0131n kabuklar\u0131nda ve ayr\u0131ca bakteri, alg ve mantar gibi alt bitkilerin h\u00fccre duvarlar\u0131nda yayg\u0131n olarak bulunur. Tahminlere g\u00f6re [...]<\/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 are the applications of chitosan (deacetyl chitin) in food? - 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\/tr\/chitosan-deacetylated-chitin\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What are the applications of chitosan (deacetyl chitin) in food? - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Chitosan, also known as deacetylated chitin, is the second most abundant biopolymer in nature after cellulose, and is widely distributed, mainly in the shells of many lower animals, especially arthropods such as shrimps, crabs, insects, etc., and also in the cell walls of lower plants such as bacteria, algae and fungi. 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