Yazar "Akyol, Ethem" seçeneğine göre listele

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  • [ N/A ]
    Öğe
    AC-2306327-0000001 Heavy Metals, Trace Elements and Biochemical Composition of Different Honey Produce in Turkey
    (Asian Journal Of Chemistry, 2009) Sahinler, Nuray; Gul, Azlz; Akyol, Ethem; Oksuz, Abdullah
    In this work, the biochemical composition, trace elements and heavy metal contents of honey samples, which were collected from different regions and different botanical origin in Turkey were evaluated. The average content of minerals, moisture, acidity, hydroxymethylfurfural, diastase, invert sugar, pH, sucrose, electrical conductivity and heavy metal contents were determined, The biochemical composition of different botanical originated honeys were determined within the limits of Turkish Standard Institution (TSE), CODEX and EU standards. Level of invert sugar in cotton honey and sucrose level in sunflower honey weren't found agree with TSE and EU standards. In addition to biochemical compositions, the presence of Al, Ba, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb and Zn were determined agree with ICP AES, The highest value of Cr, Cu, K, Mn, Na and Al, contents were found in pine honeydew honey with a levels of 0.50, 2.14, 1931, 1.46, 285, 7.49 mg kg(-1), respectively. The highest level of Cd, Co, Mg, Ni and Pb (0.32, 0.22, 103, 0.64, 1.29 mg kg) were found in cotton honey. The highest level of Ba and Zn were determined in multifloral honey with a level of 1.47 ppm and 3.29 ppm, respectively. K, Na and Mg were the major macro elements in all honey samples. This study showed that the source of nectar and ecological regions have an important effect on the biochemical compositions, trace elements and heavy metals contents of honey.
  • [ N/A ]
    Öğe
    Determiming the Performances of Honeybees, Pure Bred Caucasian, Anatolian and Their Reciprocal Crosses under Nomad Beekeeping Conditions
    (Medwell Online, 2009) Yeninar, Halil; Akyol, Ethem; Sahinler, Nuray
    This study was carried out to determine the brood production, development of adult worker bee population and honey yield of pure bred Caucasian (Apis mellifera Caucasica) (C (female male)), Anatolian (A (female male) (Apis mellifera anatoliaca) honeybees and their reciprocal crosses (C (male) x A (female) and A (female) x C (male)) under nomad beekeeping conditions in Central and South-East Anatolia with coastal side of East Mediterranean region of Turkey. All Queens were reared in same apiary, with same methods and at the same time. All of them were instrumentally inseminated. Average number of frames, covered with bees, of 10 measuring times between 25th April and 31st October, in C (female male), A (female male), C (female) x A (male) and A (female) x C (male) genotypes were found to be 11.6 +/- 0.4, 17.2 +/- 0.9, 11.5 +/- 0.5 and 17.8 +/- 1.0 number/colony and the brood areas 3754.2 +/- 340.8, 5425.1 +/- 416.9, 3742.6 +/- 323.8 and 5194.8 +/- 428.7 cm(2) colony(-1) were found, respectively. The total average honey yields for 4 groups were found as 36.3 +/- 3.5; 43.9 +/- 4.1; 33.1 +/- 3.5 and 55.3 +/- 4.5 kg colony(-1), respectively in 3 different ecological regions. There were found significant differences (p<0.01) among the groups with respect to on frames covered with bees, brood area and the honey yields. There were calculated high and significant (p<0.01) correlations (r = 0.85, r = 0.82) between frames covered with bees, brood areas and honey yield.
  • Küçük Resim
    Öğe
    The effects of additive feeding and feed additives before wintering on honey bee colony performances, wintering abilities and survival rates at the East Mediterranean region
    (2006) Akyol, Ethem; Yeninar, Halil; Sahinler, Nuray; Guler, Ahmet
    In this study; the effects of additive feeding with vitamin, fumagillin and pollen supplement on survival rates, wintering abilities, amount of adult bees and brood production were examined at subtropical temperate region before wintering. The wintering ability, survival rates, adult bees and brood areas were positively affected by feeding and feed additives. The lowest values of research components were observed on unfed control groups colonies. © 2006 Asian Network for Scientific Information.