Effect of temperature, pH and bacteriocins on the viability of selected food pathogens in food systems during high hydrostatic pressure (HHP) processing

Alpas, Hami


Effects of dynamic loading on neocartilage formation
Çiçek Rezaeitabar, Gülçin; Tezcaner, Ayşen; Altunbaş, Korhan; Department of Biomedical Engineering (2022-8-09)
Cartilage tissue engineering has gained attention to meet the increasing demand for articular cartilage treatment in ageing populations. In this study, a visible light crosslinkable Methacrylated Glycol Chitosan (MeGC)-Fibrinogen (Fib) hydrogel system which can potentially be used in cartilage tissue engineering applications was developed. Incorporation of Fib into MeGC hydrogel structure decreased the swelling, led to increase in stability and improved the mechanical properties of hydrogels. Besides Fib ad...
Effect of soil and substructure properties on live-load distribution in integral abutment bridges
Dicleli, Murat (American Society of Civil Engineers (ASCE), 2008-09-01)
This study is aimed at investigating the effect of soil-structure interaction and substructure properties at the abutments on the distribution of live-load effects in integral abutment bridge (IAB) components. For this purpose, numerous 3D and corresponding 2D structural models of typical IABs are built and analyzed under AASHTO live-load. In the analyses, the effect of various geotechnical and substructure properties such as foundation soil stiffness, considering and neglecting the effect of backfill, back...
Effect of high hydrostatic pressure (HHP) in physicochemical and textural properties of starch
Okur, İlhami; Alpas, Hami; Department of Food Engineering (2018)
Starch is the major polysaccharide consumed by human being. It is not classified as a dietary fiber as it is digestible by the enzymes present in the saliva and small intestines. However, it could become possible to modify the starch with thermal and non-thermal techniques. High Hydrostatic Pressure (HHP) is a cold pasteurization technique that has increased application in the food industry with minimum effect on the nutritional quality of the products. It is hypothesized that the use of HHP could be a modi...
Effect of ground motion selection on seismic response of buildings
Karakütük, Özge; Yakut, Ahmet; Department of Civil Engineering (2015)
In this study, effects of ground motion selection and scaling procedure given in different earthquake design codes were investigated. To observe differences between the scaling procedures defined in various seismic design codes, these procedures are applied employing the response spectra defined in these specifications. Four reinforced concrete moment resisting frame buildings were used in the analyses. These buildings have 3, 4, 6 and 8 stories. This way, effects of scaling on low-rise and mid-rise buildin...
Effect of double growth factor release on cartilage tissue engineering
Ertan, Ayse Burcu; Yilgor, Pinar; Bayyurt, Banu; Calikoglu, Ayse Ceren; Kaspar, Cigdem; Kök, Fatma Neşe; KÖSE, GAMZE; Hasırcı, Vasıf Nejat (2013-02-01)
The effects of double release of insulin-like growth factor I (IGF-I) and growth factor 1 (TGF1) from nanoparticles on the growth of bone marrow mesenchymal stem cells and their differentiation into cartilage cells were studied on PLGA scaffolds. The release was achieved by using nanoparticles of poly(lactic acid-co-glycolic acid) (PLGA) and poly(N-isopropylacrylamide) (PNIPAM) carrying IGF-I and TGF1, respectively. On tissue culture polystyrene (TCPS), TGF-1 released from PNIPAM nanoparticles was found to ...
Citation Formats
H. Alpas, “Effect of temperature, pH and bacteriocins on the viability of selected food pathogens in food systems during high hydrostatic pressure (HHP) processing,” Ph.D. - Doctoral Program, Middle East Technical University, 2000.