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            <front>

                <journal-meta>
                                                                <journal-id>makufebed</journal-id>
            <journal-title-group>
                                                                                    <journal-title>Mehmet Akif Ersoy Üniversitesi Fen Bilimleri Enstitüsü Dergisi</journal-title>
            </journal-title-group>
                                        <issn pub-type="epub">1309-2243</issn>
                                                                                            <publisher>
                    <publisher-name>Burdur Mehmet Akif Ersoy University</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id pub-id-type="doi">10.29048/makufebed.354022</article-id>
                                                                <article-categories>
                                            <subj-group  xml:lang="en">
                                                            <subject>Engineering</subject>
                                                    </subj-group>
                                            <subj-group  xml:lang="tr">
                                                            <subject>Mühendislik</subject>
                                                    </subj-group>
                                    </article-categories>
                                                                                                                                                        <title-group>
                                                                                                                        <article-title>Yoğurt Örneklerinden İzole Edilmiş Laktik Asit Bakterilerinin Moleküler Yöntemlerle Tanımlanması ve Ekzopolisakkarit Üretimlerinin Belirlenmesi</article-title>
                                                                                                                                                                                                <trans-title-group xml:lang="en">
                                    <trans-title>Molecular Identification of Lactic Acid BacteriaI Solated from Yoghurt Samples and Determination of Exopolysaccharide Production Properties</trans-title>
                                </trans-title-group>
                                                                                                    </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                <name>
                                    <surname>Demir</surname>
                                    <given-names>Ebru</given-names>
                                </name>
                                                                    <aff>Mehmet Akif Ersoy Üniversitesi, Fen Bilimleri Enstitüsü, Gıda Mühendisliği Anabilim Dalı, Burdur, Türkiye</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                <name>
                                    <surname>Kaygusuz</surname>
                                    <given-names>Evrim</given-names>
                                </name>
                                                                    <aff>Sedaca Mutfak Sanatları, Menemen, İzmir</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                <name>
                                    <surname>Başyiğit Kılıç</surname>
                                    <given-names>Gülden</given-names>
                                </name>
                                                                    <aff>MEHMET AKİF ERSOY ÜNİVERSİTESİ, MÜHENDİSLİK-MİMARLIK FAKÜLTESİ, GIDA MÜHENDİSLİĞİ BÖLÜMÜ</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                <name>
                                    <surname>Yüce</surname>
                                    <given-names>Sedef</given-names>
                                </name>
                                                                    <aff>Mehmet Akif Ersoy Üniversitesi, Fen Bilimleri Enstitüsü, Gıda Mühendisliği Anabilim Dalı, Burdur, Türkiye</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                <name>
                                    <surname>Soyuçok</surname>
                                    <given-names>Ali</given-names>
                                </name>
                                                                    <aff>Süleyman Demirel Üniversitesi, Fen Bilimleri Enstitüsü, Gıda Mühendisliği Anabilim Dalı, Burdur</aff>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20171213">
                    <day>12</day>
                    <month>13</month>
                    <year>2017</year>
                </pub-date>
                                        <volume>8</volume>
                                        <issue>Ek (Suppl.) 1</issue>
                                        <fpage>262</fpage>
                                        <lpage>267</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20171116">
                        <day>11</day>
                        <month>16</month>
                        <year>2017</year>
                    </date>
                                                    <date date-type="accepted" iso-8601-date="20171210">
                        <day>12</day>
                        <month>10</month>
                        <year>2017</year>
                    </date>
                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 2010, The Journal of Graduate School of Natural and Applied Sciences of Mehmet Akif Ersoy University</copyright-statement>
                    <copyright-year>2010</copyright-year>
                    <copyright-holder>The Journal of Graduate School of Natural and Applied Sciences of Mehmet Akif Ersoy University</copyright-holder>
                </permissions>
            
                                                                                                <abstract><p>Laktik asit bakterileri (LAB) fermente gıda endüstrisinde önemli birrole sahiptir. Özellikle LAB yoğurt üretimi için önem arz ederler. Yoğurtta LAByapıyı, viskoziteyi ve su tutma kapasitesini geliştirir. Ekzopolisakkarit (EPS)üreten LAB fermente süt ürünlerinin kıvam ve reolojik özelliklerine katkıdabulunduğu için süt ürünleri endüstrisinde önemlidir. Bu çalışmada daha öncedenAkdeniz bölgesindeki ev veya küçük ölçekli işletmelerde geleneksel yöntemlerleüretilmiş kırk adet yoğurt örneğinden izole edilmiş 55 adet laktik asitbakterisinin (LAB) genetik tanımlamaları yapılmıştır. 16S-ITS rRNA geniPolimeraz Zincir Reaksiyonu (PZR) ile çoğaltılmıştır. TaqI ve HaeIII kesim enzimleri çoğaltılmış DNA’nın kesilmesindekullanılmıştır. Tüm bakterilere DNA sekans analizi yapılmış ve elde edilensekanslar BLAST programı kullanılarak Gen Bankasında kayıtlıdizilerle karşılaştırılmıştır. Bakterilerin ekzopolisakkarit (EPS)üretimleri belirlenmiştir. Bakterilerin 16S-ITS RFLP analizi tanı testisonuçlarına göre ise; 6 adet bakteri Lactobacillus delbrueckii subsp. bulgaricus (L. bulgaricus) olarak tanımlanmıştır.Tanı testi sonuçlarına göre; bakterilerin 50 tanesi L. bulgaricus, 2’şer tanesi Lactobacillushelveticus ve Enterococcus faecium, 1 tanesi Pediococcus acidilactici olarak tanımlanmıştır. Bakterilerin EPSüretim miktarları 5,89 ile 134,60 mg/L arasında tespit edilmiştir. Araştırmaneticesinde L. bulgaricus La24B,La38A, La4C, Lj40C, La14A ve Lj38A’nın en iyi EPS üreten suşlar olarak tespitedilmiştir.</p></abstract>
                                                                                                                                    <trans-abstract xml:lang="en">
                            <p>Lactic acid bacteria (LAB) have an important rolein fermented food industry. Especially, LAB is essential for yoghurtproduction. In yoghurt LAB improve structure, viscosity and water holdingcapacity. LAB that produce exopolysaccharides (EPS)s areimportant in the dairy industry because of their contribution to theconsistency and rheology of fermented milk products. In this study, a 55 LAB previously isolated fromforty yoghurt samples produced by traditional methods in homes or small scale dairy plants in Mediterranean region were used for genotypingcharacterization. The 16S-ITS rRNA gene was amplified by Polymerase ChainReaction (PCR). TaqI and HaeIIIrestriction enzymes wereused for restriction digest of the amplified DNA. DNA sequencing was performed to all bacteriaand the sequences obtained were then evaluated in GenBank using BLASTprogramme. EPS production properties of the bacteria were alsoinvestigated. Accordingto 16S-ITS RFLP analyses 6 bacteria were identified as Lactobacillus delbrueckii subsp bulgaricus(L. bulgaricus). According tosequence analyses of the isolates, it was found that the most common LABspecies in yoghurt samples were 50 L.bulgaricus strains, 2 Lactobacillushelveticus strains, 2 Enterococcusfaecium strains, 1 Pediococcusacidilactici strain and 1 Enterococcusfaecium strain were alsoidentified. The amount of EPS in bacteria wasdetermined between 5,89 and 134,60 mg/L. The results showed that L. bulgaricus La24B, La38A, La4C,Lj40C, La14A ve Lj38A were the best EPS-producing strains.</p></trans-abstract>
                                                            
            
                                                            <kwd-group>
                                                    <kwd>Ekzopolisakkarit</kwd>
                                                    <kwd>  16S-ITS rRNA</kwd>
                                                    <kwd>  yoğurt</kwd>
                                                    <kwd>  başlatıcı kültür</kwd>
                                            </kwd-group>
                                                        
                                                                            <kwd-group xml:lang="en">
                                                    <kwd>Exopolysaccharide</kwd>
                                                    <kwd>  16S-ITS rRNA</kwd>
                                                    <kwd>  yoghurt</kwd>
                                                    <kwd>  starterculture</kwd>
                                            </kwd-group>
                                                                                                            </article-meta>
    </front>
    <back>
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