The Effect of Gur Gum on the Qualities of Gluten Free Crispy Waffle from Sweet Purple Potato Flour

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Kannika Kunyanee
Panarat Sungin


The objective of this research was improved the qualities of gluten free crispy waffle from purple sweet potato with gur gum. The crispy waffle from purple sweet potato was prepared by purple sweet potato flour, baking powder, eggs and melted butter. There were mixed together until the ingredients was combined. The qualities of waffle were improved with gur gum amount of 0, 0.5 and 1.0 % of purple sweet potato flour. Then, 4 g of the ingredients were added to the crispy waffle maker for 1-1.5 minutes. The results showed that the crispy waffle from sweet purple potato had L*, a* and hue angle were significantly difference (p<0.05). However, b* and chroma were did not significant difference (p≥0.05). The texture showed the increased hardness from 3319.35 N to 4464.59 N. The sensory evaluation showed the crispy waffle from sweet potato with gur gum in amount 0.5% flour had the highest score of overall acceptance was 6.13. The nutrition values of gluten free crispy waffle from sweet potato had the moisture content, protein content, fat, ash, and carbohydrate were 3.05, 7.67, 19.49, 0.87, 68.92 (g/100g), energy and total fiber were 481.77 Kcal/100g and 1.08 (g/100g), respectively.



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Kunyanee, K. . ., & Sungin, P. . . (2020). The Effect of Gur Gum on the Qualities of Gluten Free Crispy Waffle from Sweet Purple Potato Flour. Dusit Thani College Journal, 13(1), 315–329. Retrieved from
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1. Department of Agriculture. (2011). Production statistics 2547-2548. Planning Division. Bangkok.
2. Nithiya, R. (2006). Food Chemistry. 2nd Edition. Bangkok: Publishing Odeon Store.
3. American Association of Cereal Chemist. (AACC). (1990). Approved Methods of the
American Association of Cereal Chemist. Minnesota: American Association of
Cereal Chemist.
4. Association of Official Analytical Chemists (AOAC), 1990, Official Method of Analysis, Association of Official Analytical Chemists, Virginia.
5. Greene, J. L., & Bovell-Benjamin, A. C. (2004). Macroscopic and sensory evaluation of
bread supplemented with sweet-potato flour. Journal of Food Science, 69(4).
6. Kruger, A., Ferrero, C., & Zaritzky, N.E. (2003). Modelling corn starch swelling in batch
system of sucrose and hydrocolloids. Journal of Food Engineering, 58, 125-133.
7. Markakis, P. (1982). Anthocyanin as Food Colors. Academic Press, New York, NY. USA.
8. Natthakarn, N., Sheryl A. B., & Puntarika, R. (2016). The effects of protein isolates and
hydrocolloids complexs on dough rheology, physicochemical properties and
qualities of gluten-free crackers. Food Science & Nutrition. 4(2), 143-155.
9. Nitiya, R. (2006). Food chemistry. 2nd edition. Bangkok: Odian Store.
10. Sabanis, D., D. Lebesi, and C. Tzia. (2009). Effect of dietary fibre enrichment on selected properties of gluten-free bread. Lebensmittel-Wissenschaft and Technology-
Food Science and Technology 42: 1380-1389.
11. Sara–wells. (2559). Homemade Waffle Cones. Available Source: 17, 2016).
12. Srirod K., & Piya, K. (2002). Technology of starch. Bangkok: Odian Store.
13. Sudhakar, V., Singhal, R. S., & Kulkarni, P. R. (1996). Effect of salt on interactions of
starch with guar gum. Food Hydrocolloids, 10(3), 329-334.

14. Pruessner, T. (1998). Detecting Celiac Disease in Your Patients. American Family Physician. Available Source:, (November 17,2016).
15. Yanin, C. (2013). Effect of blanching on properties of purple sweet potato flour for Chinese steamed bread (Mantou) application and quality improvement with alpha-amylase or carboxymethyl cellulose. Master’s degree thesis in food science and technology. Burapha university.
16. Yang, J., & Gadi, R.L. “Effects of Steaming and Dehydration on Anthocyanins, Antioxidant Activity, Total Phenols and Color Characteristics of Purple-Fleshed Sweet Potatoes (Ipomoea batatas).” American Journal of Food Technology. 3,4(2008), 224-234.