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            <front>

                <journal-meta>
                                                                <journal-id>van vet j</journal-id>
            <journal-title-group>
                                                                                    <journal-title>Van Veterinary Journal</journal-title>
            </journal-title-group>
                            <issn pub-type="ppub">2149-3359</issn>
                                        <issn pub-type="epub">2149-8644</issn>
                                                                                            <publisher>
                    <publisher-name>Van Yüzüncü Yıl Üniversitesi</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id pub-id-type="doi">10.36483/vanvetj.1178127</article-id>
                                                                <article-categories>
                                            <subj-group  xml:lang="en">
                                                            <subject>Veterinary Surgery</subject>
                                                    </subj-group>
                                            <subj-group  xml:lang="tr">
                                                            <subject>Veteriner Cerrahi</subject>
                                                    </subj-group>
                                    </article-categories>
                                                                                                                                                        <title-group>
                                                                                                                        <trans-title-group xml:lang="en">
                                    <trans-title>Investigation of Functional Properties and Bacterial Viability of Probiotic Yogurt Produced with Lactobacillus acidophilus LA-5 in Long-term (12 Weeks) Storage</trans-title>
                                </trans-title-group>
                                                                                                                                                                                                <article-title>Lactobacillus acidophilus LA-5 ile Üretilen Probiyotik Yoğurdun Fonksiyonel Özelliği ve Bakteri Canlılığının Uzun Süreli (12 Hafta) Depolamada İncelenmesi</article-title>
                                                                                                    </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0003-2162-2418</contrib-id>
                                                                <name>
                                    <surname>Yalçın</surname>
                                    <given-names>Halil</given-names>
                                </name>
                                                                    <aff>BURDUR MEHMET AKİF ERSOY ÜNİVERSİTESİ</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0001-6662-1721</contrib-id>
                                                                <name>
                                    <surname>Polat</surname>
                                    <given-names>Zübeyde</given-names>
                                </name>
                                                                    <aff>BURDUR MEHMET AKİF ERSOY ÜNİVERSİTESİ</aff>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20230319">
                    <day>03</day>
                    <month>19</month>
                    <year>2023</year>
                </pub-date>
                                        <volume>34</volume>
                                        <issue>1</issue>
                                        <fpage>1</fpage>
                                        <lpage>6</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20220921">
                        <day>09</day>
                        <month>21</month>
                        <year>2022</year>
                    </date>
                                                    <date date-type="accepted" iso-8601-date="20221221">
                        <day>12</day>
                        <month>21</month>
                        <year>2022</year>
                    </date>
                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 1990, Van Veterinary Journal</copyright-statement>
                    <copyright-year>1990</copyright-year>
                    <copyright-holder>Van Veterinary Journal</copyright-holder>
                </permissions>
            
                                                                                                <trans-abstract xml:lang="en">
                            <p>In this study, probiotic yogurt was produced by using the cultures used in commercial yogurt production and Lactobacillus acidophilus LA-5 culture together. Culture viability/storage stability and bacteria with some hygiene criteria were investigated in the yoghurt produced for 12 weeks (+4 ºC). The production was performed in triplicate, the analyzes were performed in dublicate, and the results were evaluated statistically. According to the research results, Lactobacillus delbrueckii subsp. bulgaricus level was determined as 7.59 log cfu/g on the 1st day of storage and 3.69 log cfu/g on the last day of storage. At the same time intervals, the number of Streptococcus thermophilus, L. acidophilus and total aerobic mesophyll bacteria were determined as 8.69-8.13, 7.43-3.8 and 7.86/4.50 log cfu/g, respectively. No coliform bacteria were detected in the probiotic yoghurt produced. However, yeast-mold was determined as 3.35 log cfu/g in the 3rd week analysis. The yeast-mold level was determined to be 5 log cfu/g) until the 5th week despite the changes in some microbiological quality criteria (yeast-mold, total aerobic mesophyll bacteria). By optimizing the storage conditions, culture combinations and adding prebiotics, fermented milk products can become more functional and provide a long-term therapeutic effect. It is considered that the data obtained from the study will contribute to prebiotic/probiotic research and new probiotic product development.</p></trans-abstract>
                                                                                                                                    <abstract><p>Bu araştırmada ticari yoğurt üretiminde kullanılan kültürler ve Lactobacillus acidophilus LA-5 kültürünün birlikte kullanılması ile probiyotik yoğurt üretilmiştir. Üretilen yoğurtta 12 hafta boyunca (+4 ºC) kültür canlılığı/depolama stabilitesi ve bazı hijyen kriteri olan bakteriler araştırılmıştır. Üretim üç paralelli, analizler ise iki tekerrürlü olarak yapılmış, elde edilen sonuçlar istatistiksel olarak değerlendirilmiştir. Araştırma sonuçlarına göre Lactobacillus delbrueckii subsp. bulgaricus düzeyi depolamanın 1. gününde 7.59 log kob/g, son depolama gününde ise 3.69 log kob/g olarak belirlenmiştir. Aynı zaman dilimlerinde Streptococcus thermophilus, L. acidophilus ve toplam aerobik mezofil bakteri sayısı sırasıyla 8.69-8.13, 7.43-3.8 ve 7.86/4.50 log kob/g düzeyinde tespit edilmiştir. Üretilen probiyotik yoğurtta koliform grubu bakteri saptanmamıştır. Bununla birlikte 3. hafta analizlerinde maya-küf 3.35 log kob/g olarak tespit edilmiştir. 7. haftadan itibaren maya-küf düzeyinin 5 log kob/g) korumuştur. Fermente süt ürünlerinin depolama şartlarının, kültür kombinasyonlarının optimize edilmesi ve prebiyotik ilavesi ile daha fonksiyonel bir hale gelerek uzun süreli terapötik etki sağlayabilir. Çalışmada elde edilen verilerin yapılacak prebiyotik/probiyotik araştırmalarına ve yeni probiyotik ürün geliştirmeye katkı sağlayacağı değerlendirilmektedir.</p></abstract>
                                                            
            
                                                                                        <kwd-group>
                                                    <kwd>Gıda</kwd>
                                                    <kwd>  Mikrobiyel kalite</kwd>
                                                    <kwd>  Probiyotik</kwd>
                                                    <kwd>  Raf ömrü</kwd>
                                                    <kwd>  Yoğurt</kwd>
                                            </kwd-group>
                            
                                                <kwd-group xml:lang="en">
                                                    <kwd>Food</kwd>
                                                    <kwd>  Microbial quality</kwd>
                                                    <kwd>  Probiotic</kwd>
                                                    <kwd>  Shelf life</kwd>
                                                    <kwd>  Yogurt</kwd>
                                            </kwd-group>
                                                                                                                                    <funding-group specific-use="FundRef">
                    <award-group>
                                                    <funding-source>
                                <named-content content-type="funder_name">Bu araştırma için herhangi bir kurumdan kaynak sağlanmamıştır.</named-content>
                            </funding-source>
                                                                            <award-id>Çalışma herhangi bir proje kapsamında yapılmamıştır.</award-id>
                                            </award-group>
                </funding-group>
                                </article-meta>
    </front>
    <back>
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