Determination of the 8th-Grade Secondary School Students’ Awareness of Food Dye with the Use of Spectrophotometer

Öz

In the current study aimed to create awareness of colour dyes found in foods and beverages in secondary school 8th-grade students through an experimental activity designed by the researchers. To this end, the experimental activity developed on the basis of 5E learning model including the use of spectrophotometer allowing the practical analysis of food dye was administered to the participants. This study was designed as a case study, one of the qualitative research methods. As the data collection tool, a semi-structured interview form, administered before and after the activity, was used to determine the participants’ awareness. By making use of science and technology integration through the developed experimental activity, students were enabled to make scientific observations on a problem encountered in their daily life. In the analysis of the data, content and descriptive analyses were used together. It was found that the activity was effective in raising the participating students’ awareness of colour dyes in foods and with the inclusion of spectrophotometer into this process, the students’ interest was aroused. As a result, it can be suggested that with the inclusion of technological tools such as spectrophotometer into teaching-learning process, activities directed to raising students’ awareness of the issues directly related to their health can be enhanced.

Anahtar Kelimeler

• Spectrophotometer,food dyes,experimental activity,5E learning model

Determination of the 8th Grade School Students’ Awareness of Food Dye with the Use of Spectrophotometer

Öz

In the current study aimed to create awareness of color dyes found in foods and beverages on 8^th grade students through an experimental activity designed by the researchers. To this end, the experimental activity developed on the basis of 5E learning model including the use of spectrophotometer allowing the practical analysis of food dye was administered to the participants. This study was designed as a case study, one of the qualitative research methods. As the data collection tool, a semi-structured interview form, administered before and after the activity, was used to determine the participants’ awareness. By making use of science and technology integration through the developed experimental activity, students were enabled to make scientific observations on a problem encountered in their daily life. In the analysis of the data, content and descriptive analyses were used together. It was found that the activity was effective in raising the participating students’ awareness of color dyes in foods and with the inclusion of spectrophotometer into this process, the students’ interest was aroused. As a result, it can be suggested that with the inclusion of technological tools such as spectrophotometer into teaching-learning process, activities directed to raising students’ awareness of the issues directly related to their health can be enhanced.

    

Anahtar Kelimeler

• Spectrophotometer,food dyes,experimental activity,5E learning model,science education

Kaynakça

1. Açışlı, S. & Turgut, Ü. (2011). The examination of the influence of the materials generated in compliance with 5E learning model on physics laboratory applications. International Online Journal of Educational Sciences, 3(2), 562-593.https://doi.org/10.1016/j.sbspro.2011.04.128
2. Aksoy, G., & Gürbüz, F. (2013). An example for the effect of 5E model on the academic achievement of students: in the unit of “force and motion”. Inönü University Journal of the Faculty of Education, 14(2), 1-16.
3. Altıniğde, N. (1999). Comparison between voltammetric and spectrophotometric methods for the determination of food coloring diazocompounds sunset yellow FCF and tartrazin in some candies and synthetic powder form drinks. GIDA, 24 (2), 139-143.
4. Atlı, B. (2010). Food Dyes (Unpublished master dissertation). Namık Kemal University, Tekirdağ.
5. Arslan, Z. K. & Aycan, Ş. (2014). An Example of the use of spectrophotometric method: determining the carmine in various food products. Procedia-Social and Behavioral Sciences, 116, 4622–4625. http://doi.org/10.1016/j.sbspro.2014.01.996
6. Aycan; H. Ş. & Arslan, Z. K. (2017). Effect of instrumental analysis application to academic achievements of pre service science teachers in teaching of adsorption- surface relation. Journal of the Turkish Chemical Society, Section C: Chemical Education, 2(2), 107-126.
7. Bes, M. T., Sancho, J., Peleato, M. L., Medina, M., Gomez-Moreno, C., & Fillat, M. F. (2003). Purification of colored photosynthetic proteins for understanding protein isolation principles. Biochemistry and Molecular Biology Education, 31(2), 119–122. http://doi.org/10.1002/bmb.2003.494031020202
8. Bosma, W. B. (1998). Using chemistry and color to analyze household products: A 10-12 hour laboratory project at the general chemistry level. Journal of Chemical Education, 75(2), 214. http://doi.org/10.1021/ed075p214

9. Büyükdere, Y. & Ayaz, A. (2016). Healt aspects of colorants used in food: Attention-deficit hyperactivity disorder.Journal of Nutrition and Dietetics, 44 (2), 169-177. ISSN 1300-3089
10. Büyüköztürk, Ş., Kılıç-Çakmak, E., Erkan-Akgün, Ö., Karadeniz, Ş. & Demirel, F. (2010). Scientific research methods. Ankara: Pegem Academy. ISBN 978-9944-919-28-9
11. Carraher, J. M., Curry, S. M., & Tessonnier, J. P. (2015). Kinetics, reaction orders, rate laws, and their relation to mechanisms: a hands-on introduction for high school students using portable spectrophotometry. Journal of Chemical Education, 93(1), 172-174.
12. Çetin-Dindar, A. & Geban, Ö. (2017). Conceptual understanding of acids and bases concepts and motivation to learn chemistry. The Journal of Educational Research, 110(1), 85-97, Doi: 10.1080/00220671.2015.1039422
13. Dooling, K., Bodenstedt, K. & Page, M. F. Z. (2013). A caffeinated boost on UV spectrophotometry: A lab for high school chemistry or an introductory university chemistry course. Journal of Chemical Education, 90(7), 914–917. https://doi.org/10.1021/ed300654u
14. Ergin, Ö., Şahin-Pekmez, E. & Öngel-Erdal, S. (2012). Kuramdan uygulamaya deney yoluyla fen öğretimi. İzmir: Dinazor Yayınevi.
15. Fialho, D. B., Rocha, J. B. T., & Mello, C. (1999). An introductory student-centered class to teach concepts related to spectrophotometry in a biochemistry practical laboratory course. Biochemical Education, 27(4), 217–220. http://doi.org/10.1016/S0307-4412(99)00050-3
16. Galloway, K. R., Bretz, S. L. & Novak, M. (2014). Paper chromatography and UV–Vis spectroscopy to characterize anthocyanins and investigate antioxidant properties in the organic teaching laboratory. Journal of Chemical Education, 92(1), 183–188. https://doi.org/10.1021/ed400520n
17. Gavaravarapu, S. R. M., Vemula, S. R., Rao, P., Mendu, V. V. R., & Polasa, K. (2009). Focus group studies on food safety knowledge, perceptions, and practices of school-going adolescent girls in south India. Journal of Nutrition Education and Behavior, 41(5), 340–346. https://doi.org/10.1016/j.jneb.2008.12.003
18. Granger, J. N. (2004). Introducing spectrophotometry in grades 6-12 using a college-based spectrophotometer loan program. Spectroscopy Letters, 37(2), 159–171. http://doi.org/10.1081/SL-120030851
19. Hirca, N. (2013). Using an animated case scenario based on constructivist 5E model to enhance pre-service teachers' awareness of electrical safety. Educational Sciences: Theory and Practice, 13(2), 1325-1334.
20. Jain, A. & Mathur, P. (2014). Intake of processed foods and selected food additives among adolescents (13-19 year olds) of Delhi, India. Asian Journal of Multidisciplinary Studies, 22(2): 64-77. ISSN 2321-8819
21. Karasar, N. (2013). Scientific research methods. Ankara: Nobel. ISBN 978-605-5426-58-3
22. Kılıç-Alpat, S., Özbayrak-Azman, Ö. & Alpat, Ş. (2018). Effect of project based learning on academic achievement of chemistry teacher candidates in the application of spectroscopic analysis method. Trakya University Journal of Education Faculty, 8(2), 214-240. Doi: 10.24315/trkefd.312906
23. Küçük, H. (2011). The knowledge level competences of science preservice teachers in spectrophotometry and vitamin C, and their views intended to the usage of spectrophotometers in education. Education Sciences. Retrieved from http://dergipark.ulakbim.gov.tr/nwsaedu/article/view/5000063221
24. Köseoğlu, F. & Tümay, H. (2015). Constructivism and new teaching methods in science education. Ankara: Palme Publishing. ISBN 978-605-355-319-9
25. Lema, M. A., Aljinovic, E. M. & Lozano, M. E. (2002). Using a homemade spectrophotometer in teaching biosciences. Biochemistry and Molecular Biology Education, 30(2), 106–110. http://doi.org/10.1002/bmb.2002.494030020032
26. Lok, K. Y. W., Chung, Y. W., Benzie, I. F. F. & Woo, J. (2011). Synthetic colorings of some snack foods consumed by primary school children aged 8–9 years in Hong Kong. Food Additives & Contaminants: Part B, 4(3), 162–167. http://doi.org/10.1080/19393210.2011.585246
27. Ministry of National Education MoNE. The science course teaching program (6th, 7th, and 8th years), Retrieved from, http://mufredat.meb.gov.tr (2018a).
28. Munmai, A., Ruenwongsa, P., Panijpan, B., Barman, N., Magee, P. A. & Somsook, E. (2011). Using principles of subtractive colors to teach color of pigments: A 5e learning cycle lesson for pre-service elementary teachers. International Journal of Learning, 18(1), 203–218.Doi: 10.18848/1447-9494/CGP/v18i01/47440
29. Öncül, Ö. (2009). Detection of mutagenic potentials of some food dyes and their effects on -Galactosidase (Unpublished doctoral dissertation). Gazi University, Ankara.
30. Öztürk, N. (2013). The effect of activities based on 5E learning model in the titled light and sound at the sixth grade and technology lesson on learning outcomes,(Unpublished doctoral dissertation). Gazi University, Ankara.
31. Patton, M. Q. (1987). How to use qualitative methods in evaluation. Newbury, CA: Sage
32. Rosa, C. H., Antelo, F. & Rosa, G. R. (2018). Kinetics of thermal‐degradation of betanins: A teaching mini‐project for undergraduates employing the red beet. Journal of Food Science Education, 17(4), 104-110.https://doi.org/10.1111/1541-4329.12147
33. Sertkaya, Ö.F. (2018). The effect of 5E model supported by algodoo software in the simple machine unit of 8th grade science lesson, (Unpublished master dissertation), Fırat University, Elazığ.
34. Sharma, R. K., Gulati, S. & Mehta, S. (2012). Preparation of gold nanoparticles using tea: A green chemistry experiment. Journal of Chemical Education, 89(10), 1316–1318. https://doi.org/10.1021/ed2002175
35. Sigmann, S. B., & Wheeler, D. E. (2004). The quantitative determination of food dyes in powdered drink mixes. A high school or general science experiment. Journal of Chemical Education, 81(10), 1475.
36. Şahin, Ç., & Çepni, S. (2012). Effectiveness of instruction based on the 5E teaching model on students’ conceptual understanding about gas pressure, Necatibey Faculty of Education Electronic Journal of Science and Mathematics Education, 6(1), 220-264.
37. Şen, S., Aksoy, H. & Yılmaz, S. (2017). Genotoxic, carcinogenic potential of food additives and their other effects on human health. Journal of Human Sciences, 14(4), 3093-3108.Doi: 10.14687/jhs.v14i4.4700
38. Turgut, Ü., & Gürbüz, F. (2011). Effects of teaching with 5E model on students' behaviors and their conceptual changes about the subject of heat and temperature. International Online Journal of Educational Sciences, 3(2), 679-706.
39. Wilder, M. & Shuttleworth, P. (2005). Cell inquiry: A 5E learning cycle lesson. Science Activities Classroom Projects and Curriculum Ideas, 41 (4), 37-43. Doi: 10.3200/SATS.41.4.37-43
40. Yıldırım, A. & Şimşek, H. (2013). Qualitative research methods in the social sciences. Ankara: Seçkin Publishing. ISBN 978-975-02-2603-8
41. Zengin, E. (2016). The effects of teaching with the 5E learning model on the academic success of middle school, 8th grades in the subject of cell divisions, (Unpublished master dissertation), Atatürk University, Erzurum.