Research and Innovation in Food Science and Technology

The Effect of Acetylation and Cross-linking on the Physicochemical, Functional and Structural Properties of Iranian Pea Starch (Jam variety)

Document Type : Original Paper

Authors

1 Graduated Master Student, Food Science and Technology, Islamic Azad University, Branch of Sharekord, Shahrekord, Iran

2 PhD Student of Food Science and Technology, Sari Agriculture Sciences and Natural Resources University, Sari, Iran

3 Assistant Professor of Food Science and Technology, Islamic Azad University, Branch of Sharekord, Shahrekord, Iran

Abstract

Pea starch is a by-product of protein extraction of pea processing. Pea starch is used in industrial applications, but due to the poor functional properties are not used in the food industry. Strach properties can be improved or modified with different methods. The aim of this study was to evaluate the effectt of to modification mehods at two levels 0.05% and 0.07% and acetylation at two levels 6% and 8% on physicochemical, structural and rheological properties of pea starch (Jam variety). The amylose content of native starch was 48.59±0.41 that increased with acytylation reaction but cross-linking reduced this value. Acetylation and substitution degree increased with increasing acetylation degree. Swelling power of cross-linked starch decreased significantly with increasing cross-linking level; but this parameter for acetylated samples were not significantly increased (P>0.05). Syneresis of acetylated starch pastes redced compared to native one; but cross-linking process increased this value compared with native starch. 8% acetylated pea starch with 36.0±1.5 percent significantly had minimum syneresis than other starch samples during storage. In addition, modification of structure of chemically modified pea starch was confirmed by FT-IR. Thermal properties of starches showed that the gelatinization enthalpy of acetylated and cross-linked starch decreased and increased, respectively. Due to the changes of various characteristics of pea starch after chemical modification, the starch samples are expected to have a different functionality compared with native starch.

Keywords

AOAC. 2003. Official methods of analysis. (17 ed.). Washington DC: Association of Official Analytical Chemists, USA.
Bello-Pérez, L.A., Contreras-Ramos, S.M., Jìmenez-Aparicio, A., & Paredes-López, O. 1999. Acetylation and characterization of banana (Musa paradisiaca) starch. Acta cientifica venezolana, 51:143-149.
Carmona-Garcia, R., Sanchez-Rivera, M.M., Méndez-Montealvo, G., Garza-Montoya, B.,  & Bello-Pérez, L.A. 2009. Effect of the cross-linked reagent type on some morphological, physicochemical and functional characteristics of banana starch (musa paradisiaca). Carbohydrate Polymers,76(1):117-122.
Chi, H., Xu, K., Wu, X., Chen, Q., Xue, D., Song C., Zhang, W., & Wang, P. 2008. Effect of acetylation on the properties of corn starch. Food Chemistry, 106(3):923-928.
Fang, J., Fowler, P., Sayers, C., & Williams, P. 2004, The chemical modification of starches under aqueous reaction conditions. Carbohydrate Polymers, 55(3):283-289.
Gonzalez, Z., & Perez, E. 2002. Effect of acetylation on some properties of rice starch. Starch-Starke, 54:148-154.
Haghparast, R., & Moradi, N. 2012. Report of the National Iranian Pea Council, Importance of Pea Production and Trade. Iranian Agricultural Statistics. [In Persian]
Jayakody, L., Lan, H., Hoover, R., Chang, P., Liu, Q., & Donner, E. 2007. Composition, molecular structure, and physicochemical properties of starches from two grass pea (lathyrus sativus L.) cultivars grown in canada. Food Chemistry, 105(1):116-125.
Jyothi, A.N., Moorthy, S.N., & Rajasekharan, K.N. 2006. effect of cross‐linking with epichlorohydrin on the properties of cassava (manihot esculenta crantz) starch. Starch‐Stärke, 58(6):292-299.
Kaur, L., Singh, J., & Singh, N. 2006. Effect of cross‐linking on some properties of potato (Solanum tuberosum L.) starches. Journal of the Science of Food and Agriculture, 86(12):1945-1954.
Li, W., Xiao, X., Guo, S., Ouyang, S., Luo, Q., Zheng, J., & Zhang, G. 2014. Proximate composition of triangular pea, white pea, spotted colored pea, and small white kidney bean and their starch properties. Food and Bioprocess Technology,7(4):1078-1087.
Lim, W., Liang, Y., Seib, P., & Rao, C. 1992. Isolation ofoat starch from oat flour. Cereal Chemistry, 69(3):233-236.
Mirmoghtadaie, L., Kadivar, M., & Shahedi, M. 2009. Effects of cross-linking and acetylation on oat starch properties. Food Chemistry, 116(3):709-713.
Namazi, H. 2008. Starch and Applications. Iranian Polymer Association Press, Tehran. [In Persian]
Nara, S., & Tsu, T.K. 1983. Studies on the relationship between water-saturated state and crystallinity by the diffraction method for moistened potato starch. Starch-Stärke, 25(12):407-410.
Ratnayake, W., Hoover, R., Shahidi, F., Perera, C., & Jane, J. 2001. Composition, molecular structure, and physicochemical properties of starches from four field pea (pisum sativum L.) cultivars. Food Chemistry, 74(2):189-202.
Ratnayake, W.S. 2004. Composition, Structure, and Physicochemical Properties of Field Pea (Pisum Sativum L.) Starch, MSc thesis, 2004, Canada.
Ratnayake, W.S., Hoover, R., & Warkentin, T. 2002. Pea starch: composition, structure and properties- a review. Starch-Stärke, 54(6):217-234.
Singh, J., Kaur, L., & Singh, N. 2004. Effect of acetylation on some properties of corn and potato starches. Starch‐Stärke, 56(12):586-601.
Sodhi, N.S., & Singh, N. 2005. Characteristics of acetylated starches prepared using starches separated from different rice cultivars. Journal of Food Engineering, 70(1):117-127.
Vasanthan, T., & Hoover, R. 1992. Effect of defatting on starch structure and physicochemical properties. Food Chemistry, 45(5):337-347.
Yoo, S.-H., & Jane, J.-l. 2002. Structural and physical characteristics of waxy and other wheat starches. Carbohydrate Polymers, 49(3):297-305.
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Research and Innovation in Food Science and Technology
Volume 6, Issue 4
February 2018
Pages 389-402
  • Receive Date: 10 April 2017
  • Revise Date: 02 October 2017
  • Accept Date: 08 October 2017