FARKLI KAYNAKLARDAN İZOLE EDİLMİŞ LAKTİK ASİT BAKTERİLERİNİN EKZOPOLİSAKKARİT ÜRETİMİ VE KOLESTEROL ASİMİLASYON YETENEKLERİNİN BELİRLENMESİ

Bağırsak sistemimizde yer alan yararlı mikroorganizmaların önemli özelliklerinden birisi gastrointestinal sistemdeki farklı koşullara karşı direnç gösterebilmeleridir. Bu koşullar arasında safra tuzlarına karşı direnç ve düşük pH’da gelişim yer almaktadır. Gastrointestinal sistemde canlılıklarını sürdürebilmek için yararlı bakteriler spesifik enzim sentezi veya ekzopolisakkarit üretimi gibi çeşitli savunma mekanizmaları geliştirmişlerdir. Bu çalışmada çeşitli fermente gıdalardan ve bitkilerden izole edilmiş laktik asit bakterilerinin safra tuzu dirençleri, düşük pH’da gelişim özelliklerinin yanı sıra, ekzopolisakkarit üretimleri ve kolesterol asimilasyon yetenekleri belirlenmiştir. Ekzopolisakkarit (EPS) üretimlerinin 11.9 ile 1.1 mg/L arasında değiştiği belirlenirken toplam kolesterol asimilasyon yüzdeleri % 60.71 ile % 16.71 arasında değişim göstermiştir. Kolesterol asimilasyon yetenekleri ile EPS üretimleri arasında bir bağlantı bulunamamıştır. 

DETERMINATION OF EXCOPOLISACCHARIDE PRODUCTION AND CHOLESTEROL ASSIMILATION ABILITIES OF LACTIC ACID BACTERIA ISOLATED FROM DIFFERENT SOURCES

One of the most important features of the intestinal flora is resistance to many conditions in the gastrointestinal tract. These include resistance to bile salt and growth at low pH. Bacteria have developed various defense mechanisms, such as specific enzymes, exopolysaccharide production, against Gastrointestinal system, In our study, strains of lactic acid bacteria  isolated from various fermented foods and plants and all the strains were determined of their bile salt and low pH resistance. The strains were also tested for their exopolysaccharide production and total cholesterol assimilation properties. EPS production was observed at rations between 11.9 to 1.1 mg/L, and total cholesterol assimilation percentages ranged from 60.71 to 16.71. There was no relevance between cholesterol assimilation ability and their EPS production.

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Gıda-Cover
  • ISSN: 1300-3070
  • Yayın Aralığı: Yılda 6 Sayı
  • Başlangıç: 1976
  • Yayıncı: Prof. Dr. İbrahim ÇAKIR
Sayıdaki Diğer Makaleler

ANADOLU MANDASI SÜTLERİNDE BAZI KALICI ORGANİK KLORLU KİRLETİCİLERİN BİYOİZLENMESİ

Enes ATMACA

TOPRAĞA GÖMEREK VEYA BUZDOLABI KOŞULLARINDA OLGUNLAŞTIRMANIN SİVAS KÜP PEYNİRİNİN ÖZELLİKLERİ ÜZERİNE ETKİSİ

Dilsat BULUT ERGİN, Nurcan KOCA

ET VE ET ÜRÜNLERİNDE MİKROBİYAL DEKONTAMİNASYON İÇİN BAZI ISIL OLMAYAN TEKNOLOJİLERİN KULLANIMI

Damla BİLECEN ŞEN, Birol KILIÇ, Ebru DEMİR, Gülden BAŞYİĞİT KILIÇ

YÜKSEK BASINÇ UYGULANMIŞ ETLE HAZIRLANAN ÇİĞ KÖFTELERİN BAZI FİZİKOKİMYASAL VE MİKROBİYOLOJİK KALİTE PARAMETRELERİNİN DEĞERLENDİRİLMESİ

Sinan UZUNLU

FARKLI KAYNAKLARDAN İZOLE EDİLMİŞ LAKTİK ASİT BAKTERİLERİNİN EKZOPOLİSAKKARİT ÜRETİMİ VE KOLESTEROL ASİMİLASYON YETENEKLERİNİN BELİRLENMESİ

Duygu ALP, Hakan KULEAŞAN

FARKLI MİKRODALGA GÜÇLERİNİN KÖPÜK KURUTMA YÖNTEMİ İLE KURUTULMUŞ YUMURTA BEYAZI TOZLARININ KURUMA KİNETİĞİ VE TOZ ÜRÜN ÖZELLİKLERİ ÜZERİNE ETKİSİ

Gülşah ÇALIŞKAN KOÇ, Burcu ÇABUK

LİMON (Citrus limon) VE ACI PORTAKAL (Citrus aurantium) UÇUCU YAĞLARININ 4±1°C’DE MUHAFAZA EDİLEN GÖKKUŞAĞI ALABALIKLARININ (Oncorhynchus mykiss) MİKROBİYOLOJİK KALİTESİ ÜZERİNE ETKİLERİ

Emine ÖZPOLAT

NAR KABUĞUNDAN ANTİMİKROBİYAL VE ANTİOKSİDAN AKTİVİTEYE SAHİP FENOLİK BİLEŞİKLERİN EKSTRAKSİYON KOŞULLARININ OPTİMİZASYONU

Tuğba DEMİR, Özlem AKPINAR, Haki KARA, Hüseyin GÜNGÖR

BAZI TATLANDIRICI VE ŞEKERLERİN ZAYIFLATILMIŞ TOPLAM YANSIMA-FOURIER DÖNÜŞÜMLÜ KIZILÖTESİ (ATR-FTIR), YAKIN KIZILÖTESİ (NIR) VE RAMAN SPEKTROSKOPİSİ İLE HIZLI TANIMLANMASI

Burcu GUVEN, Serap DURAKLİ-VELİOGLU, İsmail Hakki BOYACİ

DEPO BAĞIL NEMİ VE SICAKLIĞININ SARAY HELVASININ KALİTESİNE ETKİLERİ

Meral KILIÇ AKYILMAZ, Özer ATIL, Zehra GÜLSÜNOĞLU