Comparison of the Effectiveness of Different Traditional Soaking Processes on the in Vitro Digestibility of Taro (Colocasia esculenta L. SCHOTT) Flour

DOI: 10.4236/fns.2014.53032   PDF   HTML   XML   3,229 Downloads   4,810 Views   Citations

Abstract

A traditional process used by farmers in Chad consists in soaking slices of taro (Colocasia esculenta L. SCHOTT) in tamarind infusion, or in corn solution or in water over a 24-hour period to reduce the acridity of taro and facilitate cooking. The aim of this study was to assess the effect of traditional soaking on the in vitro digestibility of taro flour using or not using an α-amylase enzyme. The digestion without the enzyme has shown that the soaking processes improve the digestibility of taro flour (from 39.30% for the control sample to 75.11% (after tamarind infusion) and 78.67% (treatment with water) after 24 hours of soaking). Soaking over a 6-hour period and preferentially in tamarind infusion or in corn solution obtains highly digestible flour (around 95% of digestibility rate after 3 hours of enzymatic digestion).

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I. Soudy, L. Oliveira, N. Nzouzi, M. Godefroy, I. Arada, O. Atteib, D. Alhadj, A. Idriss, B. Eto and D. Grancher, "Comparison of the Effectiveness of Different Traditional Soaking Processes on the in Vitro Digestibility of Taro (Colocasia esculenta L. SCHOTT) Flour," Food and Nutrition Sciences, Vol. 5 No. 3, 2014, pp. 258-263. doi: 10.4236/fns.2014.53032.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] Jane, L. Shen, J. Chen, S. Lim, T. Kasemsuwan and W. K. Nip, “Physical and Chemical Studies of Taro Starches and Flours,” Cereal Chemistry, Vol. 69, No. 5, 1992, pp. 528-535.
[2] I. C. Onwueme, “Tropical Root and Tuber Crops: Production, Perspectives and Future Prospects,” FAO, Rome, 1994, 228p.
[3] FAO, “Racines, Tubercules, Plantains et Bananes dans la Nutrition humaine,” Alimentation et Nutrition, FAO, Rome, 1991, 200p.
[4] A. Bell, O. Mueck and B. Schuler, “Les richesses du sol: les Plantes à Racines et Tubercules en Afrique: Une Contribution au Développement des Technologies de Récolte et d’après—Récolte,” Ed. Deutsche Stiftung fuer Internationale Entwicklung, Feldafing, 2000, 237p.
[5] I. D. Soudy, D. Grancher, P. Delatour and B. Facho, “Mode de Culture et Techniques Traditionnelles de Transformation et de Conservation Post Récolte du Taro (Colocasia esculenta L. SCHOTT) au Tchad,” Les Annales de l’Université de N’Djaména, Série C, Vol. 3, 2008, pp. 71-85.
[6] I. D. Soudy, P. Delatour and D. Grancher, “Effects of Traditional Soaking on the Nutritional Profile of Taro Flour (Colocasia esculenta L. Schott) Produced in Chad,” Revue de Médecine Vétérinaire, Vol. 161, No. 1, 2010, pp. 37-42.
[7] D. Martinez Bou, “Tamarind Characteristics,” 2011.
http://www.botanical-online.com/english/tamarind.htm
[8] J. Adrian, J. Potus and R. Frangne, “La Science Alimentaire de A à Z,” 2nd Editipn, Ed Lavoisier: Technique et Documentation, Paris, 1995, 477p.
[9] INRA, “Alimentation des Bovins, Ovins et Caprins,” Ed. INRA, Paris, 1978, pp. 23-45.
[10] Y. N. Njintang, “Studies on the Production of Taro (Colocasia esculenta L. Schott) Flour for Use in the Preparation of Achu,” Ph.D. Thesis, University of Ngaoundéré— Cameroon, Department of Food Sciences and Nutrition, National School of Agro-Industrial Sciences (ENSAI), 2003.
[11] J. C. Favier, “Etude de la Digestibilité ‘in Vitro’ de l’amidon de Diverses Plantes Alimentaires du Sud-Cameroun, Influence des Transformations Technologiques sur l’Amidon de Manioc,” Centre ORSTOM de Yaoundé, Cameroon, 1969, pp. 9-14.
[12] A. E. Elkhalifa, B. Schiffer and R. Bernhard, “Effect of Fermentation on the Starch Digestibility, Resistant Starch and Some Physicochemical Properties of Sorghum Flour,” Food/Nahrung, Vol. 48, No. 2, 2004, pp. 91-94.
http://dx.doi.org/10.1002/food.200300322
[13] E. S. Admassu and S. R. Kumar, “Influence of Natural and Controlled Fermentations on α-Galactosides, Antinutrients and Protein Digestibility of Beans (Phaseolus vulgaris L.),” International Journal of Food Science and Technology, Vol. 43, No. 4, 2008, pp. 658-665.
http://dx.doi.org/10.1111/j.1365-2621.2006.01506.x
[14] A. A. M. Nour, M. A. I. Ahmad, E. E. Babiker and A. E. A. Yagoub, “Investigations on Winter Season Sudanese Sorghum Cultivars: Effect of Sprouting on the Nutritional Value,” International Journal of Food Science & Technology, Vol. 45, No. 5, 2010, pp. 884-890.
[15] Y. Luo, W. Xie and Q. Cui, “Effects of Phytase, Cellulase and Dehulling Treatments on Zinc in Vitro Solubility in Faba Bean (Vicia faba L.) Flour and Seed Fractions,” International Journal of Food Science & Technology, Vol. 45, No. 2, 2010, pp. 358-364.
http://dx.doi.org/10.1111/j.1365-2621.2009.02152.x
[16] D. Zhang, W. W. Collins and M. Andrade, “Estimation of Genetic Variance of Starch Digestibility in Sweetpotato,” Horticultural Science, Vol. 30, No. 2, 1995, pp. 348-349.
[17] L. Huijun, R. Lawrence and C. Harold, “Physical Properties and Enzymatic Digestibility of Acetylated ae, wx, and Normal Maize Starch,” Carbohydrate Polymers, Vol. 34, No. 4, 1997, pp. 283-289.
[18] L. N. Panlasigui, L. U. Thompson, B. O. Juliano, C. M. Perez, S. H. Yiu and G. R. Greenberg, “Rice Varieties with Similar Amylose Content Differ in Starch Digestibility and Glycemic Response in Humans,” The American Journal of Clinical Nutrition, Vol. 54, No. 5, 1991, pp. 871-877.
[19] K. H. Steinkraus, “Handbook of Indigenous Fermented Foods,” 2nd Edition, Marcel Dekker Inc., New York, 1996, 40p.
[20] K. Madhuri and S. Pratima, “Effect of Processing on in Vitro Carbohydrates Digestibility of Cereals and Legums,” Journal of Food Science and Technology-Mysore, Vol. 33, No. 6, 1996, pp. 493-497.

  
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