Rheological Properties of Five Plant Gums
- 1 College of Food Science and Engineering, Ocean University of China, Qingdao, China
- 2 College of Food Science and Engineering, Ocean University of China, Qingdao, China
- 3 College of Food Science and Engineering, Ocean University of China, Qingdao, China
- 4 College of Food Science and Engineering, Ocean University of China, Qingdao, China
- 5 College of Food Science and Engineering, Ocean University of China, Qingdao, China
- 6 College of Food Science and Engineering, Ocean University of China, Qingdao, China
- 7 College of Food Science and Engineering, Ocean University of China, Qingdao, China
Abstract
The rheological properties of five gum solutions (Gum Shiraz, Karaya Gum, Ghatti Gum, Arabic Gum and Gum Tragacanth) have been examined. The five mucilage solutions exhibited non-Newtonian, shear-thinning with thixotropy at higher concentrations (0.5% - 1%, m/v). According to the change of viscosity with increasing temperature, all five gums could be defined as three types: gum tragacanth and gum shiraz have a good temperature stability; karaya gum is affected by temperature obviously; the remaining two gums have a general stability. The viscosity of mucilage solutions (Arabic Gum, Ghatti Gum and Karaya Gum) had an apparent dependence on temperature. The parameter n of Shiraz Gum is the minimum, which means it has the best flow properties. The flow activation energy of karaya gum is 2.683 kcal which is the highest than other gums so that it has a great influence on temperature. The gum solutions’ viscosity had different sensitive degree over tested pH range (pH 2 - 10). Shiraz gum and arabic gum possessed better acid-proof and alkali-proof respectively. The addition of salts (NaCl and CaCl 2 ) led to the reduction of viscosity, which was more sensitive to Ca 2+ than to Na<sup>+</sup>. Both storage modulus G’ and loss modulus G” of all five gums had a dependence on temperature and frequency. These results are potentially useful for the application in the field of food processing.
- Verbeken, D., Dierckx, S. and Dewettinck, K. (2003) Exudate Gums: Occurrence, Production, and Applications. Applied Microbiology and Biotechnology, 63, 10-21. https://doi.org/10.1007/s00253-003-1354-z
- Delgobo, C.L., Gorin, P.A.J., Tischer, C.A. and Iacomini, M. (1999) The Free Reducing Oligosaccharides of Angico Branco (Anadenanthera colubrina) Gum Exudate: An Aid for Structural Assignments in the Heteropolysaccharide. Carbohydrate Research, 320, 167-175. https://doi.org/10.1016/S0008-6215(99)00159-7
- Maurer-Menestrina, J., Sassaki, G.L., Simas, F.F., Gorin, P.A.J. and Jacomini, M. (2003) Structure of a Highly Substituted b-Xylan of the Gum Exudate of the Palm Livistona chinensis (Chinese Fan). Carbohydrate Research, 338, 1843-1850. https://doi.org/10.1016/S0008-6215(03)00276-3
- Delgobo, C.L., Gorin, P.A.J., Jones, C. and Iacomini, M. (1998) Gum Heteropolysaccharide and Free Reducing Mono- and Oligosaccharides of Anadenanthera colubrina. Phytochemistry, 47, 1207-1214. https://doi.org/10.1016/S0031-9422(97)00776-0
- Jones, J.K.N. and Smith, F. (1949) Plant Gums and Mucilages. In: Pigman, W.W. and Wolfrom, M.L., Eds., Advances in Carbohydrate Chemistry, Vol. 4, Academic Press, New York, 243-291. https://doi.org/10.1016/S0096-5332(08)60051-X
- Rinaudo, M. (2001). Relation between the Molecular Structure of Some Polysaccharides and Original Properties in Sol and Gel States. Food Hydrocolloids, 15, 433-440. https://doi.org/10.1016/S0268-005X(01)00041-8
- Li, X.B., Fang, Y.P., Al-Assaf, S., Phillips, G.O., Nishinari, K. and Zhang, H.B. (2009) Rheological Study of Gum Arabic Solutions: Interpretation Based on Molecular Self-Association. Food Hydrocolloids, 23, 2394-2402. https://doi.org/10.1016/j.foodhyd.2009.06.018
- Chauhan, G., Pillai, P. and Ojha, K. (2017) Rheological Studies of Gum Tragacanth as a Prospective Candidate for Hydraulic Fracturing. Materials Today, 4, 9413-9417. https://doi.org/10.1016/j.matpr.2017.06.195
- Higiro, J., Herald, T., Alavi, S. and Bean, S. (2007) Rheological Study of Xanthan and Locust Bean Gum Interaction in Dilute Solution: Effect of Salt. Food Research International, 40, 435-447. https://doi.org/10.1016/j.foodres.2006.02.002
- Lai, L., Tung, J. and Lin, P. (2000) Solution Properties of Hsian-Tsao (Mesona Procumbens Hemsl) Leaf Gum. Food Hydrocolloids, 14, 287-294. https://doi.org/10.1016/S0268-005X(99)00069-7
- Razmkhah, S., Razavi, S.M.A. and Mohammadifar, M.A. (2017) Dilute Solution, Flow Behavior Thixotropy and Viscoelastic Characterization of Cress Seed (Lepidium sativum) Gum Fractions. Food Hydrocolloids, 63, 404-413. https://doi.org/10.1016/j.foodhyd.2016.09.030