Yazar "Bozan, Berrin" için Kimya Mühendisliği Bölümü listeleme
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Accelerated Solvent Extraction of Flavan-3-OL Derivatives from Grape Seeds
Bozan, Berrin; Altınay, R. Çiğdem (Karger, 2014)Accelerated Solvent Extraction of flavan-3-ols from grape seed was carried out to determine the effect of extraction conditions (solvent type, temperature, extraction time, particle size, and cycle number) at the constant ... -
Antioxidant activity and phenolic composition of sumac (Rhus coriaria L.) extracts
Koşar, M.; Bozan, Berrin; Temelli, F.; Başer, K. Hüsnü Can (Elsevier Sci LTD, 2007)Antioxidant activity and phenolic compounds of sumac extracts were investigated. Sumac was extracted in methanol and subjected to solvent-solvent partitioning to yield two fractions as ethyl acetate and aqueous. Methanol ... -
Antioxidant and free radical scavenging activities of Rhus coriaria and Cinnamomum cassia extracts
Bozan, Berrin; Koşar, Müberra; Tunalıer, Z; Öztürk, N; Başer, K. Hüsnü Can (Akademiai Kiado, 2003)Antioxidant and free radical scavenging activities of the extracts of sumac (Rhus coriaria) fruits and cassia. (Cinnamomum cassia) cortex were studied. Plant samples were extracted with methanol:water (80:20) and an aliquot ... -
Antioxidants from laurel (Laurus nobilis L.) berries: influence of extraction procedure on yield and antioxidant activity of extracts
Bozan, Berrin; Karakaplan, U. (Akademiai Kiado, 2007)The antioxidant activities of laurel (Laurus nobilis L.) berries extracts were evaluated using a DPPH assay, a beta-carotene/linoleic acid assay and the Rancimat method. Pericarp and kernel of berries were extracted by ... -
Chemical composition and oxidative stability of flax, safflower and poppy seed and seed oils
Bozan, Berrin; Temelli, Feral (Elsevier Sci LTD, 2008)Three seeds of Turkish origin, flax, poppy and safflower were analyzed for their proximate, fatty acids, tocols (tocopherols and tocotrienols) and total phenolic composition, and oxidative stability of their oil. The major ... -
Comparison of Dilute Acid and Alkali Catalysed Liquid Hot Water Pretreatment of Hazelnut Shells for Enzymatic Hydrolysis
Hoşgün, Emir Zafer; Bozan, Berrin (Eta-Florence Renewable Energies, 2015)The efficiency of alkali and acid pretreatment of hazelnut shells for increasing enzymatic saccharification of cellulose has been evaluated. Hazelnut shells were pretreated with 1% of sulphuric acid, and 2.25 % sodium ... -
Comparison of High Temperature Alkali and Acid Pretreatment for the Enzymatic Saccharification of Poppy Stalks
Hoşgün, Emir Zafer; Bozan, Berrin (Aidic Servizi Srl, 2014)In this study, the effect of dilute alkali (NaOH) and dilute acid (H2SO4) concentrations on the enzymatic digestibility, and sugar recovery from poppy stalks at the pretreatment temperature of 120 degrees C, and pretreatment ... -
Düşük sıcaklık düşük zaman alkali ön işlemlerinin fındık kabuğunun bileşimi ve enzimatik hidrolizi üzerine etkisinin incelenmesi
Hoşgün, Zafer Emin; Bozan, Berrin (2017)Bu çalışmada, fındık kabuklarından enzimatik hidroliz ile glikoz üretimi için, düşük sıcaklık kısa zaman alkali ön işlemi uygulanmıştır. Çalışılan alkaliler içinde enzimatik hidroliz verimi ve lignin giderimi açısında ... -
Effect of Temperature and Time on the Steam Pretreatment of Hazelnut Shells for the Enzymatic Saccharification
Hoşgün, Emir Zafer; Bozan, Berrin (Aidic Servizi Srl, 2014)Saturated steam pretreatment of hazelnut shells was studied for fermentable sugars after enzymatic hydrolysis. The elevation of temperature (from 160 to 200 degrees C) and time (0-30 min) of steam pretreatment were ... -
Ethanol production from hazelnut shells through enzymatic saccharification and fermentation by low-temperature alkali pretreatment
Hoşgün, Emir Zafer; Berikten, Derya; Kıvanç, Merih; Bozan, Berrin (Elsevier Sci LTD, 2017)Low-temperature sodium hydroxide (NaOH) pretreatment, enzymatic saccharification and ethanol fermentation were evaluated for hazelnut shell cellulose to fermentable sugars and ethanol. Maximum glucose recovery (48.33 g/100 ... -
Extraction of poppy seed oil using supercritical CO2
Bozan, Berrin; Temelli, Feral (Inst Food Technologists, 2003)Extraction of poppy seed oil with supercritical carbon dioxide (SC-CO2) was performed and the effect of extraction conditions on oil solubility and yield as well as oil composition was evaluated. Within the temperature (50 ... -
The influence of pectolytic enzyme addition and prefermentative mash heating during the winemaking process on the phenolic composition of Okuzgozu red wine
Borazan, Alev Akpınar; Bozan, Berrin (Elsevier Sci LTD, 2013)The effects of pectolytic enzyme addition and mash heating prior to fermentation on the phenolic component of Okuzgozu red wine during the winemaking and ageing processes were investigated. In general, the highest concentration ... -
Investigation of the effect of low temperature low time alkali pretreatment on hazelnut shells composition and enzymatic hydrolysis
Hoşgün, Emin Zafer; Bozan, Berrin (Gazi University, Fac Engineering Architecture, 2017)In this study, effect of low temperature-short time alkali pretreatment of hazelnut shells on glucose recovery after enzymatic hydrolysis was investigated. NaOH pretreatment was found to give the highest glucose recovery. ... -
The nanobiocomposites synthesis from biomass and its characterization
This study was conducted to evaluate the suitability of using hexagonal boron nitride (hBN) as reinforcement in natural fibres obtained from hazelnut shell (F) and poppy straw (H). Raw materials were treated with alkali ... -
Optimization of Alkaline Pretreatment for Enzymatic Saccharification of Poppy Stalks
Uzunlu, Nuray; Hoşgün, Emir Zafer; Bozan, Berrin (North Carolina State University Dept Wood & Paper Sci, 2014)Response surface methodology (RSM) was employed to optimize dilute alkaline pretreatment conditions for the maximum glucose yield of poppy stalk, with respect to NaOH concentration (1.0 to 3.5%, w/v), pretreatment temperature ... -
Optimization of Hydrothermal Pretreatment Parameters for Glucose and Xylose Recovery From Poppy Stalks
Hoşgün, Emir Zafer; Bozan, Berrin (Eta-Florence Renewable Energies, 2015)Response surface methodology (RSM) was employed to optimize hydrothermal pretreatment conditions for glucose and xylose recovery from poppy stalk, with respect to temperature (120-200oC), solid to liquid ratio (0.05-0.20) ... -
Study of polyphenol content in the seeds of red grape (Vitis vinifera L.) varieties cultivated in Turkey and their antiradical activity
Bozan, Berrin; Tosun, göksel; Özcan, Derya (Elsevier Sci LTD, 2008)The polyphenolic content and antioxidant capacity in the seeds of 11 red grape varieties (five international and six native) widely cultivated in Turkey were investigated. Total phenolic, total flavanol and total polymeric ...