Food Engineering / Gıda Mühendisliği
Permanent URI for this collectionhttps://hdl.handle.net/11147/12
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Conference Object Bioethanol Production From Low Cost Agro-Industrial Waste Products(Elsevier, 2012) Evcan, Ezgi; Tarı, Canan; Özen, BanuIn recent years, the rapid increase in environmental problems, greenhouse gas emissions, fuel prices and the unlimited consumption of limited fossil fuel stocks made people search for some alternative energy sources. Bioethanol is one of the most popular alternative source with its many beneficial features. Besides, bioethanol which will be obtained from low cost raw materials will be more attractive. Bioethanol produced from lignocellulosic biomass sources, such as agricultural residues, offers unique environmental and economic benefits.Article Citation - WoS: 20Citation - Scopus: 20The Development of Lentil Derived Protein-Iron Complexes and Their Effects on Iron Deficiency Anemia in Vitro(Royal Society of Chemistry, 2020) Evcan, Ezgi; Güleç, ŞükrüIron deficiency anemia (IDA) is the most common nutrient-dependent health problem in the world and could be reversed by commercially available iron supplementation. The form of iron supplement is important due to its toxicity on the gastrointestinal system (GI), so the development of new dietary strategies might be important for the prevention of IDA. It has been shown that plant-based proteins bind to iron and might decrease the free form of iron before absorption and increase iron bioavailability. Thus, we aimed to form lentil derived protein-iron complexes and to test the functional properties of hydrolysed protein-iron complexes in anemic Caco-2 cell line. Our main findings were that (i) lentil derived proteins had the capacity to chelate iron minerals and (ii) hydrolysed protein-iron complexes significantly reduced the mRNA levels of iron regulated divalent metal transporter-1 (DMT1), transferrin receptor (TFR), and ankyrin repeat domain 37 (ANKRD37) marker genes that were induced by iron deficiency anemia. The current findings suggest that hydrolysed protein-iron complexes might have functional properties in iron deficiency anemia in vitro. Further in vivo studies are necessary to show lentil derived proteins and iron might be used as supplements or food additives to reduce the risk of iron deficiency anemia.Article Citation - WoS: 52Citation - Scopus: 72Production of Bioethanol From Apple Pomace by Using Cocultures: Conversion of Agro-Industrial Waste To Value Added Product(Elsevier Ltd., 2015) Evcan, Ezgi; Tarı, CananDirect fermentation of cellulosic biomass to bioethanol has been very promising and hence attracted attention in recent years. In this study, bioethanol production from apple pomace hydrolysate (agro-industrial waste product) was investigated by coculturing Trichoderma harzianum, Aspergillus sojae and Saccharomyces cerevisiae using statistical approaches. Screening and optimization experiments were conducted in order to determine the significant factors and their optimum levels for maximum bioethanol production. Inoculation rates, aeration and agitation speed were considered as factor variables and bioethanol production as response variable. Highest bioethanol (EtOH) concentration and ethanol yield on total reducing sugar content (YP/S) were 8.748 g/L and 0.945 g/g, respectively. Optimum conditions were 6% (w/v) inoculation rates of T.harzianum and A.sojae, and 4% (v/v) inoculation rate of S.cerevisiae with vented aeration method and agitation speed of 200 rpm. To best of our knowledge to date, no reports are available in literature regarding the coculturing of T.harzianum, A.sojae and S.cerevisiae for bioethanol production. Therefore, this study will serve as a base line of initial studies in this field. The method can create a renewable alternative feedstock for fossil fuel production and suggest a feasible solution to multiple environmental problems simultaneously creating a sink for waste utilization.