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The Addition of Opuntia ficus-indica Ethanolic Extract to a Skimmed Milk-Based Extender Impacts Ram Sperm Quality
Allai, Larbi; Druart, Xavier; Terzioğlu, Pınar; Louanjli, Noureddine; Nasser, Boubker; Öztürk, Mehmet; El Amiri, Bouchara (PMC, 2023)Recently, researchers have focused on the use of natural antioxidants to improve semen quality as a key element for successful artificial insemination. In this context, the first aim of this study was to determine the ... -
Anatoluin A and B isolated from medicinal Tricholoma anatolicum are new cytotoxic ergostanoids against the most common cancers
Kaplaner, Erhan; Öztürk, Mehmet; Duru, Mehmet Emin; Aydoğmuş Öztürk, Fatma (Taylor and Francis Ltd., 2022)Tricholoma anatolicum is an edible mushroom from the matsutake group growing under Cedar trees. Bioactivity-guided fractionation of Tricholoma anatolicum afforded two new (1 and 2), three known ergosterols (3–6), and four ... -
Anticancer and apoptotic effects of a polysaccharide extract isolated from Lactarius chrysorrheus Fr. in HepG2 and PANC-1 cell lines
Mutlu, Doğukan; Çakır, Cansel; Öztürk, Mehmet; Arslan, Şevki (Institut za Bioloska Istrazivanja, 2023)Mushrooms are widely used in many cultures for nutritional and health benefits. The Lactarius species is found in the Aegean region of Turkey. Lactarius chrysorrheus Fr. is a wild mushroom that contains a milky juice. In ... -
Antioxidant and anticholinesterase active constituents from Micromeria cilicica by radical-scavenging activity-guided fractionation
Öztürk, Mehmet; Kolak, Ufuk; Topçu, Gülaçtı; Öksüz, Sevil; Choudhary, M. Iqbal (Elsevier Sci Ltd, 2011)From the acetone extract of Micromeria cilicica, two new (1 and 2) and five known (3-7) compounds were obtained through radical-scavenging activity guided isolation. Structures of the compounds were identified as piperitone ... -
Antioxidant and Anticholinesterase Activity Evaluation of ent-Kaurane Diterpenoids from Sideritis arguta
Ertaş, Abdülselam; Öztürk, Mehmet; Boğa, Mehmet; Topçu, Gülaçtı (Amer Chemical Soc, 2009)The petroleum ether and acetone extracts of the aerial parts of Sideritis arguta afforded two new and six known diterpenoids with the ent-kaurane skeleton. The structures of the new diterpenoids were determined as ent-7 ... -
Antioxidant and antidiabetic activities of hexane extract of Genista januensis var. lydia
Çakır, C.; Orak H.H.; Argon M.; Çalışkan H.; Öztürk, Mehmet (Bulgarska Akademiya na Naukite, 2022)The genus Genista L. (Fabaceae) has been of interest for human beings since ancient times with its cosmopolitan distribution. Since α-amylase and α-glucosidase are the chief enzymes of diabetes mellitus, this study aims ... -
Antioxidant, anticholinesterase activities and polyphenolic constituents of cones of algerian fir (Abies numidica) by LC-ESI-MS/MS with chemometric approach
Mokaddem-Daroui, Habiba; Mostefa, Maya Belhadj; Aydoğmuş Öztürk, Fatma; Erol, Ebru; Öztürk, Mehmet; Ertaş, Abdulselam; Duru, Mehmet Emin; Kabouche, Ahmed; Kabouche, Zahia (Marmara Üniversitesi, 2021)The fractions (Fr.1-5) of the hydromethanolic extract of Abies numidica cones were studied for their polyphenol constituents, antioxidant, and anticholinesterase activities. The beta-carotene-linoleic acid, cupric reducing ... -
Antioxidant, anticholinesterase and antibacterial activities of Stachys guyoniana and Mentha aquatica
Ferhat, Maria; Erol, Ebru; Beladjila, Khadidja Aya; Çetintaş, Yunus; Duru, Mehmet Emin; Öztürk, Mehmet; Kabouche, Zahia (Taylor & Francis Ltd, 2017)Context: Stachys guyoniana Noe ex. Batt. and Mentha aquatica L. are two Algerian Lamiaceae used in folk medicine. Objective: To investigate their antioxidant, anticholinesterase and antibacterial activities. Material and ... -
Application of Box-Behnken design for modeling of lead adsorption onto unmodified and NaCl-modified zeolite NaA obtained from biosilica
Terzioğlu, Pınar; Yücel, Sevil; Öztürk, Mehmet (Iwa Publishing, 2017)The main objective of the present study was to optimize lead adsorption onto zeolite NaA. For this purpose, to synthesize zeolite NaA under hydrothermal conditions, local wheat husk was precleaned with chemical treatment ... -
Assessment of physicochemical parameters, bioactive compounds, biological activities, and nutritional value of the most two commercialized pollen types of date palm (Phoenix dactylifera L.) in Morocco
Salhi, Saad; Chentouf, Mouad; Harrak, Hasnaâ; Öztürk, Mehmet; Çam, Dilaycan; Çakır, Cansel (SAGE Publications Inc., 2023)The pollen of date palm (Phoenix dactylifera L.) is known for its nutritional value and implications as a health-promoting component. Due to its low cost, date palm pollen crushed with its spadix is more widely commercialized ... -
Bioactive molecules from Algerian propolis with therapeutic potential against the oral pathogen Enterococcus faecalis and Chromobacterium violaceum CV026
Mokrani, Meryem; Zellagui, Amar; Hadjab, Widad; Öztürk, Mehmet; Ceylen, Özgür; Bensouici, Chawki (SciCell s.r.o., 2023)This research aims to analyse the richness of propolis ethanolic extract from Kherrata (EEPKh) in phenolic and flavonoid compounds and its antioxidant effects using different methods. Further investigations were conducted ... -
Biologically active flavonoids from Dodonaea viscosa and their structure-activity relationships
Muhammad, Akhtar; Tel-Çayan, Gülsen; Öztürk, Mehmet; Nadeem, Said; Duru, Mehmet Emin; Anis, Itrat; Shah, Muhammad R. (Elsevier, 2015)Antioxidant and anticholinesterase activities of twelve flavonoids i.e. santin (1), penduletin (2), viscosine (3), 6,7-dimethylkaempferol (4), kaempferol-3- methylether (5), 3,4'-dimethoxy-5,7-dihydroxyflavone (6), ... -
Chemical characterization and nutritional value of Spirulina platensis cultivated in natural conditions of Chichaoua region (Morocco)
Rahim, Abdellatif; Çakır, Cansel; Öztürk, Mehmet; Şahin, Bihter; Soulaimani, Aziz; Sibaoueih, Mounia; Nasser, Boubker; Eddoha, Rabiaa; Essamadi, Abdelkhalid; El Amiri, Bouchra (Elsevier B.V., 2021)The aim of the current study was to characterize the phytochemical, phytopigments, and nutritional value of Spirulina platensis produced in Chichoua region of Morocco. A natural medium based on well water-wood ash is used ... -
Chemical Composition and Antioxidant Activity of Essential Oil from Daucus reboudii Coss., an Endemic Plant of Algeria
Smaili, Tahar; Bendif, Hamdi; Öztürk, Mehmet; Flamini, Guido; Peron, Gregorio (MDPI AG, 2021)Plants of the Daucus genus (Apiaceae) are used worldwide as traditional medicines or culinary ingredients. In this work, in order to explore a new chemotype, the essential oil obtained from the aerial parts of Daucus ... -
Chemical composition of the essential oil and hexane extract of Salvia chionantha and their antioxidant and anticholinesterase activities
Tel, Gülsen; Öztürk, Mehmet; Mehmet, Emin Duru; Harmandar, Mansur; Topcu, Gulacti (Pergamon-Elsevier Science Ltd, 2010)The essential oil and methyl ester of hexane extract of Salvia chionantha Boiss. were analysed by GC and GC-MS. Totally, 54 components were detected in the essential oil and all of them were fully determined. Germacrene D ... -
Chemical constituents and anticholinesterase activity of the essential oil of Algerian Elaeoselinum thapsioides (desf.) maire
Smaili, Tahar; Bendif, Hamdi; Öztürk, Mehmet; Duru, Mehmet Emin; Flamini, Guido; Maggi, Filippo (Taylor and Francis Ltd., 2020)Elaeoselinum thapsioides is an Algerian medicinal plant used in traditional medicine to treat different diseases. The essential oil obtained by hydrodistillation from the aerial parts of Elaeoselinum thapsioides (Desf.) ... -
Chemical constituents of Porodaedalea pini mushroom with cytotoxic, antioxidant and anticholinesterase activities
Deveci, Ebru; Tel-Çayan, Gülsen; Duru, Mehmet Emin; Öztürk, Mehmet (Springer, 2019)Chemical investigation of Porodaedalea pini led to the isolation of campesterol (1), ergosta-7,24(28)-dien-3 beta-ol (2), dioctyl phthalate (3), ergosterol peroxide (4), pinoresinol (5) and 4-(3,4-dihydroxyphenyl)but-3-en-2-one ... -
Chemical fingerprints and bioactivities of 12 Anatolian Achillea L. species by LC-MS/ MS with chemometric approach: novel phytonutrients, natural food preservatives and chlorogenic acid sources
Yılmaz, Mustafa Abdullah; Ertaş, Abdulselam; Yener, İsmail; Türkmenoğlu, Fatma Pınar; Tokul Ölmez, Özge; Öztürk, Mehmet; Çakır, Oğuz; Tarhan, Abbas (Turkiye Klinikleri, 2022)The objective of this study was to evaluate the biological activities and chemical fingerprint profiles of the extracts obtained from twelve Achillea L. species (A. lycaonica, A. biebersteinii (syn: A. arabica), A. kotschyi ... -
Compounds from Sedum caeruleum with antioxidant, anticholinesterase, and antibacterial activities
Bensouici, Chawki; Kabouche, Ahmed; Karioti, Anastasia; Öztürk, Mehmet; Duru, Mehmet Emin; Bilia, Anna Rita; Kabouche, Zahia (Taylor & Francis Ltd, 2016)Context: This is the first study on the phytochemistry, antioxidant, anticholinesterase, and antibacterial activities of Sedum caeruleum L. (Crassulaceae).Objective: The objective of this study is to isolate the secondary ... -
Compounds from the pods of Astragalus armatus with antioxidant, anticholinesterase, antibacterial and phagocytic activities
Labed, Amira; Ferhat, Maria; Labed-Zouad, Ilhem; Kaplaner, Erhan; Zerizer, Sakina; Voutquenne-Nazabadioko, Laurence; Öztürk, Mehmet (Taylor & Francis Ltd, 2016)Context: The phytochemical study and biological activities of Astragalus armatus Willd. subsp. numidicus (Fabaceae) pods, an endemic shrub of Maghreb, are reported. Objective: This study isolates the secondary metabolites ...