Browsing by Author "Eren Karahan, Leyla"

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COMPOSITE EDIBLE FILMS AND THEIR FEATURES
(4 th International Conference on Engineerg and Natural Science, 2-6 May 2018, Abstract Book, 2018) Çelikel Güngör, Aslı; Akın, Mutlu Buket; Akın, Musa Serdar; Göncü, Büşra; Eren Karahan, Leyla
Edible films are materials that are not synthetic and can be consumed with food, coated with various methods on the surface of the product in order to protect the food, extend the shelf life and provide functional properties. Composition of edible films consists of a combination of one or more substances such as carbohydrate, fat, protein and plasticizer. Nutritional values of foods are supported with edible film coating, especially with the films made of proteins. The antimicrobial and antioxidant substances added to edible films avoid the growth of microorganisms on the food surface and prolong the shelflife of the foods. It is desired that edible films should be as odorless, tasteless, colorless, transparent, clear as possible, durable and flexible as well as in compliance with the foodstuff in order to avoid the adverse effects during consumption. In addition, edible films are able to meet the different functional needs (moisture barrier, gas barrier, water and lipid solubility, color and appearance, mechanical properties, etc.) of the product to which they are applied. In recent years, the use of edible composite films containing more than one component has become widespread, in contrast to the onecomponent edible films desired for edible film production. In this study, researches on edible composite films and their properties have been reviewed.
DETERMINATION OF QUALITY PROPERTIES OF TRADITIONAL ADIYAMAN CHEESE PRODUCED FROM SHEEP MILK
(Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi, 2022) Çelikel Güngör, Aslı; Çelikel Güngör, Aslı; Akın, Musa Serdar; Akın. Mutlu Buket; Gözde Ceylan, Huriye
In this study, 60 fresh Adıyaman cheeses produced from sheep's milk by traditional method in Adıyaman were collected in April, May, June and July. Physicochemical, textural and microbiological properties of cheese samples were examined. Physicochemical and textural properties of Adıyaman cheeses showed a wide distribution in generally. Dry matter, fat, fat in dry matter, protein, protein in dry matter, hardness, gumminess, cohesiveness and L* values were 47.49±2.35%, 22.05±2.20%, 19.81±2.85%, 41.75±5.82%, 6047.83±5968.86 g, 5018.91±5151.70, 0.83±0.04, 88.37±2.35 respectively and the difference between these values of the samples belonging to different months were found significant (p<0.05). The presence of yeast-mold, Staphylococcus aureus, coagulase positive Staphylococcus aureus (53.33%) and Escherichia coli (50%) were determined in Adıyaman cheese, while the presence of Brucella spp., Salmonella spp., and Listeria monocytogenes were not determined.
DETERMINATION OF VIABLE BACTERIAL COUNTS AND ACETALDEHYDE CONTENTS IN BIOYOGURT PRODUCED BY USING LACTOBACILLUS ACIDOPHILUS AND LACTOBACILLUS CASEI AT DIFFERENT INOCULUM RATES
(4 th International Conference on Engineerg and Natural Science, 2-6 May 2018, Abstract Book, 2018) Çelikel Güngör, Aslı; Göncü, Büşra; Çelikel, Aslı; Eren Karahan, Leyla; Akın, Mutlu Buket
Due to their attributed health benefits, probiotic bacteria (such as L. acidophilus and/or Bifidobacteria) have been increasingly included in yogurts and fermented milks during the past three decades. The addition of probiotic bacteria is made not only because of certain claimed health-promoting effects in the intestinal tract but also because of the sensory aspects as well as the expanding variety of products that can be formulated with them. In this study, the effects of different inoculum rates of Lactobacillus acidophilus and Lactobacillus casei of using in the production of bio-yogurt on the viable bacterial counts and acetaldehyde contents were determined during storage.For this purpose, different inoculum rates (1%, 2% and 3%) of both probiotic bacteria were tested. So, suitable inoculum rate were detected for production of bio-yogurt, which has enough probiotic bacterial content for supplying desirable aromatic effect and also the therapeutic minimum (106-107 cfu g-1). In addition to, the effects of inulin (at a rate of 1%) were searched for encouraging of probiotic bacterial development and quality of bio-yogurt. According to the results, the effects of inoculum rate of probiotic bacteria, storage period and addition of inulin were significant on the physicochemical, microbilogolic and sensory properties of bio-yogurt (p<0.01).