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<\/p>\nDiren\u00e7li ni\u015fasta nedir?
\n1992 y\u0131l\u0131nda FAO (Birle\u015fmi\u015f Milletler G\u0131da ve Tar\u0131m \u00d6rg\u00fct\u00fc), Englyst ve European Resistant Starch Research Collaboration (EURESA) taraf\u0131ndan yap\u0131lan bir \u00e7al\u0131\u015fmaya dayanarak, \"sa\u011fl\u0131kl\u0131 bireylerin ince ba\u011f\u0131rsa\u011f\u0131nda emilemeyen ni\u015fasta ve diren\u00e7li ni\u015fastan\u0131n bozunma \u00fcr\u00fcnleri\" olarak tan\u0131mlam\u0131\u015ft\u0131r. Daha a\u00e7\u0131k bir ifadeyle, diren\u00e7li ni\u015fasta ince ba\u011f\u0131rsakta emilmez ve enzimatik olarak par\u00e7alanmaz, ancak insan gastrointestinal sisteminin kolonunda u\u00e7ucu ya\u011f asitleri ile bir fermantasyon reaksiyonuna girebilir. Bu nedenle diren\u00e7li ni\u015fasta, anti-enzimatik ni\u015fasta ve sindirilemeyen ni\u015fasta olarak da bilinir.
\nRS baz\u0131 meyvelerde ve baklagillerde yayg\u0131n olarak bulunur. Tah\u0131llar ve makarna gibi ni\u015fasta i\u00e7eren g\u0131dalar\u0131n \u0131s\u0131l i\u015fleme tabi tutulmas\u0131 gibi g\u0131da i\u015flemleri, diyet lifi kadar y\u00fcksek su i\u00e7eri\u011fini korumas\u0131 kolay olmayan RS \u00fcretecektir.<\/p>\n
Diren\u00e7li ni\u015fastan\u0131n s\u0131n\u0131fland\u0131r\u0131lmas\u0131
\nRS1 RS1 fizyolojik olarak kabul edilemez ni\u015fastalard\u0131r, genellikle tam tah\u0131llar ve b\u00fcy\u00fck ni\u015fasta gran\u00fclleridir. H\u00fccre duvarlar\u0131n\u0131n bariyer etkisi veya proteinlerin tutucu etkisi nedeniyle amilaz taraf\u0131ndan yakla\u015f\u0131lamayan ni\u015fastalar\u0131 ifade eder. K\u0131smen \u00f6\u011f\u00fct\u00fclm\u00fc\u015f tah\u0131llarda ve baklagillerde oldu\u011fu gibi, ni\u015fastan\u0131n bir k\u0131sm\u0131 h\u00fccre duvarlar\u0131 ile kapl\u0131d\u0131r ve amilaz taraf\u0131ndan yakla\u015f\u0131lmak i\u00e7in suda yeterince \u015fi\u015fmez ve da\u011f\u0131lmaz ve bu nedenle sindirilemez. Ancak i\u015flendikten ve \u00e7i\u011fnendikten sonra genellikle sindirilebilir hale gelirler.
\nRS2 Diren\u00e7li ni\u015fasta gran\u00fclleri, sindirime do\u011fal olarak diren\u00e7li olan ni\u015fastalar\u0131 ifade eder. Bunlar \u00e7o\u011funlukla \u00e7i\u011f patates, muz ve y\u00fcksek d\u00fcz zincirli m\u0131s\u0131r ni\u015fastas\u0131nda bulunur. Enzimatik sindirime kar\u015f\u0131 diren\u00e7leri yo\u011fun ve k\u0131smen kristal yap\u0131lar\u0131ndan kaynaklan\u0131r ve yap\u0131\u015ft\u0131rma i\u015fleminin tamamlanmas\u0131yla diren\u00e7leri kaybolur.
\nRS3 rejenere ni\u015fasta, yap\u0131\u015ft\u0131rma i\u015fleminden sonra so\u011futma veya depolama s\u0131ras\u0131nda kristalle\u015fen ve amilaz taraf\u0131ndan par\u00e7alanmas\u0131 zor olan ni\u015fastay\u0131 ifade eder, ayn\u0131 zamanda y\u0131llanm\u0131\u015f ni\u015fasta olarak da bilinir. Ha\u015flanm\u0131\u015f so\u011fuk patates vb. gibi.
\nRS4 Kimyasal Olarak De\u011fi\u015ftirilmi\u015f Ni\u015fasta (ChemicallyModifiedStarch) esas olarak, ni\u015fastan\u0131n molek\u00fcler yap\u0131s\u0131ndaki de\u011fi\u015fiklik ve karboksimetil ni\u015fasta, \u00e7apraz ba\u011fl\u0131 ni\u015fasta ve benzeri gibi baz\u0131 kimyasal fonksiyonel gruplar\u0131n eklenmesi nedeniyle fiziksel veya kimyasal denat\u00fcrasyondan sonra enzime diren\u00e7li ni\u015fasta k\u0131sm\u0131n\u0131 ifade eder. Bu arada, genetik modifikasyon veya kimyasal y\u00f6ntemlerin neden oldu\u011fu molek\u00fcler yap\u0131daki de\u011fi\u015fiklikler gibi yeti\u015ftirme s\u0131ras\u0131nda genetik modifikasyonun neden oldu\u011fu ni\u015fastan\u0131n molek\u00fcler yap\u0131s\u0131ndaki de\u011fi\u015fikliklerle \u00fcretilen enzime diren\u00e7li ni\u015fasta fraksiyonunu da ifade eder.
\nDiren\u00e7li ni\u015fastan\u0131n rol\u00fc
\nDiren\u00e7li ni\u015fasta ba\u011f\u0131rsak ortam\u0131n\u0131 optimize eder Diren\u00e7li ni\u015fasta v\u00fccudun mide ve ince ba\u011f\u0131rsa\u011f\u0131 taraf\u0131ndan sindirilmez, b\u00f6ylece kal\u0131n ba\u011f\u0131rsa\u011fa bozulmadan girmesine izin verir. Kal\u0131n ba\u011f\u0131rsa\u011fa girdikten sonra, ba\u011f\u0131rsaklardaki faydal\u0131 bakteriler bu ni\u015fastalar\u0131 fermantasyon i\u00e7in kullan\u0131r.
\nYararl\u0131 bakteriler taraf\u0131ndan ger\u00e7ekle\u015ftirilen fermantasyon, ba\u011f\u0131rsaklar\u0131n pH'\u0131n\u0131 d\u00fc\u015f\u00fcrmek ve k\u0131sa zincirli ya\u011f asitleri \u00fcretmek gibi ba\u011f\u0131rsak ortam\u0131n\u0131 iyile\u015ftirir.
\nVe bu ya\u011f asitleri aras\u0131nda b\u00fctirat bol miktarda bulunur. B\u00fctirat kolondaki h\u00fccreler i\u00e7in y\u00fcksek kaliteli bir enerji kayna\u011f\u0131d\u0131r, bu da iltihaplanmay\u0131 azalt\u0131r ve kolorektal kanser riskini d\u00fc\u015f\u00fcr\u00fcr. Ayr\u0131ca, bu k\u0131sa zincirli ya\u011f asitleri ba\u011f\u0131rsak duvar\u0131n\u0131n b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc koruyarak s\u0131zd\u0131ran ba\u011f\u0131rsak sendromunu \u00f6nler.
\nB\u00fctirat sadece ba\u011f\u0131rsaklarda kalmaz, ayn\u0131 zamanda kan dola\u015f\u0131m\u0131na da girer ve v\u00fccudun di\u011fer k\u0131s\u0131mlar\u0131 i\u00e7in de yararl\u0131 olabilir. B\u00fctirat, insan kan dola\u015f\u0131m\u0131ndaki ba\u011f\u0131\u015f\u0131kl\u0131k h\u00fccrelerinde g\u00fc\u00e7l\u00fc bir anti-enflamatuar etkiye sahiptir.
\nDiren\u00e7li ni\u015fastan\u0131n b\u00fctirat i\u00e7eri\u011fini di\u011fer prebiyotiklerden daha \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131rd\u0131\u011f\u0131n\u0131 \u00f6ne s\u00fcrmeye de\u011fer.
\nAyr\u0131ca hayvanlar \u00fczerinde yap\u0131lan \u00e7al\u0131\u015fmalarda diren\u00e7li ni\u015fastan\u0131n kalsiyum, demir ve magnezyumun ba\u011f\u0131rsaktan emilimini art\u0131rd\u0131\u011f\u0131 tespit edilmi\u015ftir.
\nDiren\u00e7li Ni\u015fasta Kan \u015eekeri Seviyesini D\u00fc\u015f\u00fcr\u00fcr ve \u0130ns\u00fclin Duyarl\u0131l\u0131\u011f\u0131n\u0131 Art\u0131r\u0131r Diren\u00e7li ni\u015fasta v\u00fccudun metabolik sa\u011fl\u0131\u011f\u0131nda \u00f6nemli bir rol oynar.
\n\u0130ns\u00fclin direnci, metabolik sendrom, Alzheimer hastal\u0131\u011f\u0131, obezite ve kardiyovask\u00fcler hastal\u0131k dahil olmak \u00fczere bir\u00e7ok kronik enflamatuar hastal\u0131\u011fa katk\u0131da bulunan bir fakt\u00f6rd\u00fcr.
\nBir\u00e7ok \u00e7al\u0131\u015fma, diren\u00e7li ni\u015fastan\u0131n ins\u00fclin duyarl\u0131l\u0131\u011f\u0131n\u0131 art\u0131rd\u0131\u011f\u0131n\u0131 ve diren\u00e7li ni\u015fastan\u0131n yemek sonras\u0131 kan \u015fekerini d\u00fc\u015f\u00fcrmede de etkili oldu\u011funu bulmu\u015ftur.
\nBir \u00e7al\u0131\u015fmada, g\u00fcnde 15-30 gram diren\u00e7li ni\u015fasta t\u00fcketen a\u015f\u0131r\u0131 kilolu ve obez ki\u015filerde, v\u00fccut a\u011f\u0131rl\u0131\u011f\u0131nda 10%'lik bir azalmaya e\u015fde\u011fer olarak ins\u00fclin duyarl\u0131l\u0131\u011f\u0131nda iyi bir art\u0131\u015f g\u00f6r\u00fclm\u00fc\u015ft\u00fcr.
\nAyr\u0131ca diren\u00e7li ni\u015fastan\u0131n 'gecikmeli \u00f6\u011f\u00fcn etkisi' vard\u0131r; yani \u00f6\u011fle yeme\u011finde diren\u00e7li ni\u015fasta a\u00e7\u0131s\u0131ndan zengin bir \u00f6\u011f\u00fcn yerseniz, ak\u015fam yeme\u011finden sonra kan \u015fekeriniz d\u00fc\u015fecektir.
\nAsl\u0131nda, diren\u00e7li ni\u015fasta kolondaki bakteriler taraf\u0131ndan par\u00e7aland\u0131\u011f\u0131nda, \u00fcretti\u011fi glikoz hemen ba\u011f\u0131rsak bakterileri taraf\u0131ndan kullan\u0131l\u0131r ve insan kan dola\u015f\u0131m\u0131na girmez.
\nDiren\u00e7li Ni\u015fasta Kilo Vermeye Yard\u0131mc\u0131 Olur Diren\u00e7li ni\u015fasta farkl\u0131 \u015fekillerde kilo vermeye yard\u0131mc\u0131 olabilir. Yukar\u0131da bahsetti\u011fimiz gibi, diren\u00e7li ni\u015fasta kan \u015fekerini d\u00fc\u015f\u00fcrerek ins\u00fclin duyarl\u0131l\u0131\u011f\u0131n\u0131 art\u0131r\u0131r ve bu da kilo vermeye yard\u0131mc\u0131 olur. Ayr\u0131ca, diren\u00e7li ni\u015fasta toklu\u011fu art\u0131r\u0131r ve ya\u011f depolama h\u00fccrelerinde ya\u011f depolanmas\u0131n\u0131 azalt\u0131r.
\nFareler \u00fczerinde yap\u0131lan deneyler, diren\u00e7li ni\u015fastan\u0131n kilo verdirebildi\u011fini g\u00f6stermi\u015ftir.
\nDiren\u00e7li Ni\u015fasta Alerjileri Tedavi Etmeye Yard\u0131mc\u0131 Olur Ara\u015ft\u0131rmalar, uzun s\u00fcreli diren\u00e7li ni\u015fasta al\u0131m\u0131n\u0131n ba\u011f\u0131rsak h\u00fccrelerinin apoptozunu azaltt\u0131\u011f\u0131n\u0131 ve ba\u011f\u0131rsak mukozas\u0131n\u0131n b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc korudu\u011funu ortaya koymu\u015ftur. Ayr\u0131ca, s\u0131zd\u0131ran ba\u011f\u0131rsak sendromunun olu\u015fumunu azalt\u0131r ve ekzotoksinlerin kan dola\u015f\u0131m\u0131na girmesini \u00f6nler.
\nAlerjiler ve otoimm\u00fcn hastal\u0131klar genellikle ba\u011f\u0131rsak ge\u00e7irgenli\u011finin artmas\u0131yla ili\u015fkilidir ve diren\u00e7li ni\u015fasta bu konuda yard\u0131mc\u0131 olabilir.
\nDiren\u00e7li ni\u015fasta i\u00e7in uygulama alanlar\u0131<\/p>\n
<\/p>\n
<\/p>","protected":false},"excerpt":{"rendered":"
What are the classifications and applications of resistant starch? What is resistant starch? In 1992, the FAO (Food and Agriculture Organization of the United Nations), based on a study by Englyst and the European Resistant Starch Research Collaboration (EURESA), defined it as \u201cnon-absorbable starch and degradation products of resistant starch in the small intestine of […]<\/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":"\n