Muhammad MUJTABA, Murat KAYA, Talip CETER

DIFFERENTIATION OF THERMAL PROPERTIES OF POLLENS ON GENUS LEVEL

Öz This study was carried out to explain the thermal properties of pollen grains for three different genera. It was also aimed to determine how thermal properties are differed in pollen grains belong to different genera. The pollen genera Salix, Betula and Fraxinus were chosen. The observed results showed that pollen grains of different genus exhibits an important difference in their thermal stabilities. The thermograms of species belonging to Fraxinus genus revealed a five-staged thermal degradations while species from Salix and Betula genus revealed a fourstaged thermal degradations. As is know very well, pollen grains are diamond of plant word and they have many applications in cosmetic, pharmacy, food and medical industry. The findings of the current study will be helpful for the future applications of pollen as a material in different fields

Anahtar Kelimeler:

Thermal stability, pollen, genus level, Salix, Betula, Fraxinus

PDF

___

[1] E. Katifori, S. Alben, E. Cerda, D.R. Nelson, J. Dumais, Foldable structures and the natural design of pollen grains. Proceedings of the National Academy of Sciences, 107/17, (2010) 7635–7639.

[2] T. Ceter, N.M. Pınar, H. Inceer, S. Hayırlıoglu Ayaz, A.E. Yaprak, The Comparative pollen morphology of genera Matricaria L. and Tripleurospemum Sch. Bip. (Asteraceae) in Turkey. Plant Systematics and Evolution, 299(5), (2013) 959-977

[3] T. Ceter, M. Ekici, N.M. Pınar, F. Ozbek, Pollen morphology of Astragalus L. section Hololeuce Bunge (Fabaceae) in Turkey. Acta Botanica Gallica, 160(1), (2013) 43-52.

[4] R.G. Stanley, H.F. Linskens, Pollen: biology biochemistry management. Springer Science & Business Media, (2012).

[5] T.D. Quilichini, E. Grienenberger, C.J. Douglas, The biosynthesis, composition and assembly of the outer pollen wall: A tough case to crack. Phytochemistry, 1/113, (2015) 170-182.

[6] M. Mujtaba, I. Sargin, L. Akyuz, T. Ceter, M. Kaya, Newly isolated sporopollenin microcages from Platanus orientalis pollens as a vehicle for controlled drug delivery. Materials Science and Engineering: C, 77, (2017) 263-270.

[7] M. Kaya, L. Akyuz, I. Sargin, M. Mujtaba, A. M. Salaberria, J. Labidi, Y.S. Cakmak, B. Koc, T. Baran, T. Ceter, Incorporation of sporopollenin enhances acid–base durability, hydrophobicity, and mechanical, antifungal and antioxidant properties of chitosan films. Journal of industrial and engineering chemistry, 47, (2017) 236-245.

[8] Y. Wang, L. Shang, G. Chen, C. Shao, Y. Liu, P. Lu, F. Rong, Y. Zhao, Polleninspired microparticles with strong adhesion for drug delivery. Applied Materials Today, 13, (2018) 303-309.

[9] R. B. Prime, H. E. Bair, S. Vyazovkin, P. K. Gallagher, A. Riga Thermogravimetric analysis (TGA), Thermal analysis of polymers: Fundamentals and applications, 1, (2009) 241-317.

[10] H. H. Horowitz, G. Metzger, A new analysis of thermogravimetric traces, Analytical Chemistry, 35(10), (1963) 1464-1468.

[11] J. Golebiewski, A. Galeski, Thermal stability of nanoclay polypropylene composites by simultaneous DSC and TGA. Composites Science and Technology, 67/15-16, (2007) 3442-3447.

[12] S. Y. Lee, D. J. Mohan, I. A. Kang, G. H. Doh, S. Lee, S. O. Han, Nanocellulose reinforced PVA composite films: effects of acid treatment and filler loading. Fibers and Polymers, 10(1), (2009) 77-82.

[13] S. Renneckar, A. G. Zink‐Sharp, T. C. Ward, W. G. Glasser, Compositional analysis of thermoplastic wood composites by TGA. Journal of applied polymer science, 93(3), (2004) 1484-1492.

[14] R. C. Mackenzie, Nomenclature in thermal analysis, part IV. Thermochimica acta, 28(1), (1979) 1-6.

[15] I. Sargın, G. Arslan, Chitosan/sporopollenin microcapsules: Preparation, characterisation and application in heavy metal removal. International journal of biological macromolecules, 75, (2015) 230-238.

[16] Y. Motomura, T. Watanabe, A. S. Kiyoshi, Studies on honey and pollen vi. On the sugar composition of several kinds of pollen, Tohoku journal of agricultural research, 13(3), (1962) 237-244.

[17] R. Pini, G. Furlanetto, L. Castellano, F. Saliu, A. Rizzi, A. Tramelli, Effects of stepped-combustion on fresh pollen grains: Morphoscopic, thermogravimetric, and chemical proxies for the interpretation of archeological charred assemblages. Review of Palaeobotany and Palynology, 259, (2018) 142-158.