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Deniz Çekmecelioğlu
E-mail
denizc@metu.edu.tr
Department
Department of Food Engineering
ORCID
0000-0002-0537-9860
Scopus Author ID
8257317300
Web of Science Researcher ID
ABA-3180-2020
Publications
Theses Advised
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Projects
Disruption of Lipomyces starkeyi cells grown in hydrolyzed cheese-whey by high pressure homogenization for enhancing lipid extraction
Batıgün, Ayşe Alara; Alpas, Hami; Çekmecelioğlu, Deniz (2025-01-01)
Lipids of microbial sources can be used for various purposes, such as enrichment of edible oils. In this study, L. starkeyi was grown in enzymatically hydrolyzed cheese whey medium and disrupted by the high-pressure homoge...
Comparison of common carbon sources with unhydrolyzed, dilute acid and steam hydrolyzed distillers’ dried grains with solubles for lignocellulolytic enzyme productions by fungal strains
Iram, Attia; Çekmecelioğlu, Deniz; Demirci, Ali (2023-05-15)
Distillers’ dried grains with solubles (DDGS) are the byproduct of first-generation bioethanol production. DDGS has a high fiber content, which can be used for hydrolytic enzyme production after pretreatment by physical or...
Monitoring and modelling of moisture content with nuclear magnetic resonance (NMR)
Selçuk, Burak; Öztop, Halil Mecit; Çekmecelioğlu, Deniz (2023-01-01)
This study aims to evaluate the variation of the moisture content and drying rate over time, temperature, and position by NMR techniques. Chickpea puree was selected for drying, and the drying experiments were performed at...
Integrating 1G with 2G Bioethanol Production by Using Distillers’ Dried Grains with Solubles (DDGS) as the Feedstock for Lignocellulolytic Enzyme Production
Iram, Attia; Çekmecelioğlu, Deniz; Demirci, Ali (2022-12-01)
First-generation (1G) bioethanol is one of the most used liquid biofuels in the transport industry. It is generated by using sugar- or starch-based feedstocks, while second-generation (2G) bioethanol is generated by using ...
Design and simulation of heat exchangers for the food industry
Tonyalı Karslı, Gökcem; Çekmecelioğlu, Deniz (Elsevier Science, Oxford/Amsterdam , 2022-11-01)
Optimization of the fermentation parameters to maximize the production of cellulases and xylanases using DDGS as the main feedstock in stirred tank bioreactors
Iram, Attia; Çekmecelioğlu, Deniz; Demirci, Ali (2022-10-01)
© 2022 Elsevier LtdLignocellulolytic enzymes such as cellulase and xylanases are needed on the industrial scales for low-cost production of biofuels and the other value-added products from lignocellulosic biomass such as d...
High hydrostatic pressure-assisted extraction of lipids from Lipomyces starkeyi biomass
Tuhanioglu, Arda; Alpas, Hami; Çekmecelioğlu, Deniz (2022-10-01)
The purpose of this study is to evaluate the effect of high hydrostatic pressure (HHP) as a novel approach for yeast cell disruption and lipid extraction from Lipomyces starkeyi DSM 70295 grown in glucose medium (40 g/L an...
Formulation of apple pomace, orange peel, and hazelnut shell mix for co-production of bacterial pectinase and cellulase enzymes by mixture design method
Ozzeybek, Mehlika; Çekmecelioğlu, Deniz (2022-02-01)
The cost of enzyme is high due to mostly pure carbon and nitrogen sources. Thus, there is a still need for exploring alternative feedstock to enhance enzyme production and reduce the cost. In this study, proportions of app...
The effect of Dilution, Aeration, and Agitation on Fungal Cellulase and Xylanase Production by DDGS-based Fermentation Media in Stirred Tank Bioreactors
Iram, Attia; Çekmecelioğlu, Deniz; Demirci, Ali (2022-01-01)
Fungal cellulases and xylanases are commonly used for biological pretreatment of lignocellulosic biomass into simple sugars, which can then be converted into many value-added products including bioethanol. However, these e...
Optimization of the fermentation parameters to maximize the production of cellulases and xylanases using DDGS as the main feedstock in stirred tank bioreactors
Iram, Attia; Çekmecelioğlu, Deniz; Demirci, Ali (2022-01-01)
Lignocellulolytic enzymes such as cellulases and xylanases are needed on the industrial scales for low cost production of biofuels and the other value-added products from lignocellulosic biomass such as distillers' dried g...
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