Effect on Physicochemical and Sensory Attributes of Bread Substituted with Different Levels of Matured Soursop (Anona muricata) Flour

Authors: Mardiana Ahamad Zabidi, Akmalluddin Md. Yunus

Abstract:

Soursop (Anona muricata) is one of the underutilized tropical fruits containing nutrients, particularly dietary fibre and antioxidant properties that are beneficial to human health. This objective of this study is to investigate the feasibility of matured soursop pulp flour (SPF) to be substituted with high-protein wheat flour in bread. Bread formulation was substituted with different levels of SPF (0%, 5%, 10% and 15%). The effect on physicochemical properties and sensory attributes were evaluated. Higher substitution level of SPF resulted in significantly higher (p<0.05) fibre, protein and ash content, while fat and carbohydrate content reduced significantly (p<0.05). FESEM showed that the bread crumb surface of control and 5% SPF appeared to distribute evenly and coalesced by thin gluten film. However, higher SPF substitution level in bread formulation exhibited a deleterious effect by formation of discontinuous gluten network. For texture profile analysis, 5% SPF bread resulted in the lowest value of hardness. The score of sensory evaluation showed that 5% SPF bread received good acceptability and is comparable with control bread.

Keywords: Bread, Physicochemical properties, Scanning electron microscopy (SEM), Sensory attributes, Soursop pulp flour.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1094008

References:

[1] I. B. Enweani, J. Obroku, T. Enahoro, and C.Omoifo (2004). The biochemical analysis of soursop (Annona muricata L.) and sweetsop (A. squamosa L.) and their potential use as oral rehydration therapy. Journal of Food, Agriculture & Environment, 2, 39−43.
[2] L. H. McKee and T. A. Latner (2000). Underuitilized sources of dietary fiber : A review. Plant Foods for Human Nutrition, 55, 285-304.
[3] C. La Vecchia, A. Altieri and A. Tavani (2001). Vegetables, fruit, antioxidants and cancer: a review of Italian studies. European Journal of Nutrition 40, 261–627.
[4] J. Telis-Romero, C.I. Beristain, A.L..Gabas and V.R.N. Telis (2007). Effect of apparent viscosity on the pressure drop during fluidized bed drying of soursop pulp. Chemical Engineering and Processing 46, 684–694.
[5] A. Umme, S.S. Bambang, Y. Salmah, B. Jamilah (2001). Effect of pasteurisation on sensory quality of natural soursop puree under different storage conditions. Food Chem. 75:293- 301.
[6] J. Lv, L. Yu, Y. Lu, Y. Niu, L. Liu, J. Costa, L. L. Yu (2012). Phytochemical compositions, and antioxidant properties, and antiproliferative activities of wheat flour. Food Chemistry, 135, 325-331.
[7] S. Dhingra and S. Jood (2001). Organoleptic and nutritional evaluation of wheat breads supplemented with soybean and barley flour. Food Chemistry, 77: 479-488.
[8] T. A. Shittu, A. O. Raji, and L. O. Sanni (2007). Bread from composite cassava-wheat flour: I. Effect of baking time and temperature on some physical properties of bread loaf. Food Research International, 40: 280-290.
[9] A. Sangnark, and A. Noomhorm, (2004). Chemical, physical and baking properties of dietary fibre prepared from rice straw. Food Research International, 37: 66-74.
[10] P. M. Clifton, M. Noakes, D. Sullivan, N. Erichsen, D. Ross, G. Annison (2004). Cholesterol lowering effects of plant sterol esters in milk, yoghurt, bread and cereal. European Journal of Clinical Nutrition, 58, 503-509.
[11] L. C. de Conto, R. S. P. Oliveira, L. G. P. Martin, Y. K. Chang, C. J. Steel (2012). Effects of the addition of microencapsulated omega-3 and rosemary extract on the technological and sensory quality of white pan bread. LWT, 45, 103-109.
[12] S.Jensen, H. Ostdal, , L. H. Skibstedt, A. K. Thybo (2011). Antioxidants and shelf life of whole wheat bread. Journal of Cereal Science, 53, 291-297.
[13] AACC (2000). Approved Methods of the American Association of Cereal Chemists. Inc. (10th ed.). St. Paul, Minnesota.
[14] V. Tulyathan, K. Tanuwong, P. Songjinda, and N. Jaiboon, (2002). Some physicochemical properties of jackfruit (Artocarpus heterophyllus Lam.) seed flour and starch. Science Asia, 28: 37- 41
[15] J. Wang, C. M. Rosell, and C. B. de Barber (2002). Effect of the addition of different fibres on whet dough performance and bread quality. Food Chemistry, 79: 221-226.
[16] K. Thorvaldsson, and C. Skjöldebrand, (1998). Water diffusion in bread during baking. Lebensmittel Wissenchaft und Technologie, 31, 658–663.
[17] B. Brito, M. Rodrı´guez, I.Samaniego, M. I. Jaramillo, F. Vaillant, (2006). Characterising polysaccharides in cherimoya (Annona cherimola Mill.) pure´e and their enzymatic liquefaction. Eur Food Res Technol.
[18] E. Juarez-Garcia, E. Agama-Acevedo, S. G. Sáyago-Ayerdi, S. L Rodriguez-Ambriz, (2006). Composition, digestibility and application in breadmaking of banana flour. Plant Foods for Human Nutrition, 61, 131-137.
[19] A. O. M. Taha, (2000). The role of sorghum flour starches (amylose/amylopectin) in composite bread quality. M.Sc. Thesis, University of Khartoum, Sudan.
[20] P.V. Hung, T. Maeda, N. Morita (2007). Dough properties and breadmaking quality of flours with whole waxy wheat flour substitution. Food Research International 40, 273-279.