The impact of dehydration process on antinutrients and protein digestibility of some legume flours

Dehydrated foods are specially designed for patients with mastication or/and deglutition problems. This study has assessed the effects of soaking, cooking and industrial dehydration treatments on antinutrient factors and also on protein digestibility in legume flours (chickpea, lentil and bean). A general decline of phytic acid was observed during dehydration, being the most accentuated in case of lentil (44%), followed by white beans and pink-mottled cream beans. Beans were the legumes that showed the highest levels of enzyme inhibitors and lectins, however processing such as cooking and dehydration significantly reduced (p < 0.05) their levels further to negligible concentrations. The dehydration did not cause further effects than ordinary cooking in reduction of the concentration of polyphenolic compounds of flours. However, a higher increase of in vitro protein digestibility (IVPD) was produced by dehydration in all legumes from 12% to 15%. Thus, dehydrated legume flours could be considered ready-to-use for special meals to specific populations.

[1]  J. Prakash,et al.  Nutritional quality of microwave-cooked and pressure-cooked legumes , 2004, International journal of food sciences and nutrition.

[2]  I. Liener,et al.  evaluation of natural vs. synthetic substrates for measuring the antitryptic activity of soybean samples , 1969 .

[3]  G. Grant,et al.  Biological effects and survival of trypsin inhibitors and the agglutinin from soybean in the small intestine of the rat , 1995 .

[4]  V. Cheynier,et al.  Interaction of grape seed procyanidins with various proteins in relation to wine fining , 1991 .

[5]  C. Cuadrado,et al.  The mode of action of ANFs on the gastrointestinal tract and its microflora. , 2004 .

[6]  T. Hernández,et al.  Occurrence of phenolic compounds in the seed coat and the cotyledon of peas (Pisum sativum L.) , 2004 .

[7]  J. D'mello,et al.  Toxic substances in crop plants , 1991 .

[8]  A. C. V. Eijnsbergen.  Statistical methods for food and agriculture, F.E. Bender, L.W. Douglass, A. Kramer. Food Products Press, Ames, Iowa, USA (1989), 345, ISBN: 1-56022-000-7 , 1997 .

[9]  M. Martín-Cabrejas,et al.  Effect of industrial dehydration on the soluble carbohydrates and dietary fiber fractions in legumes. , 2006, Journal of agricultural and food chemistry.

[10]  G. Sarwar,et al.  In vitro assay for protein digestibility: interlaboratory study. , 1990, Journal - Association of Official Analytical Chemists.

[11]  R. Alonso,et al.  Effects of extrusion and traditional processing methods on antinutrients and in vitro digestibility of protein and starch in faba and kidney beans , 2000 .

[12]  B. Swanson,et al.  Protein Digestibility of Selected Legumes Treated with Ultrasound and High Hydrostatic Pressure During Soaking , 2007 .

[13]  A. Clemente,et al.  Effect of cooking on protein quality of chickpea (Cicer arietinum) seeds , 1998 .

[14]  B. Lönnerdal.  Phytic acid-trace element (Zn, Cu, Mn) interactions , 2002 .

[15]  G. Grant,et al.  Nutritional evaluation of soya beans (glycine max): Nitrogen balance and fractionation studies , 1986 .

[16]  Gustavo V. Barbosa-Cánovas,et al.  Advances in dehydration of foods , 2001 .

[17]  M. Duranti,et al.  Legume seeds: protein content and nutritional value , 1997 .

[18]  Z. Rehman,et al.  Thermal heat processing effects on antinutrients, protein and starch digestibility of food legumes , 2005 .

[19]  B. Bartolomé,et al.  Changes in phenolic compounds in lentils (Lens culinaris) during germination and fermentation , 1997 .

[20]  H. Swaisgood,et al.  Protein digestibility: in vitro methods of assessment. , 1991, Advances in food and nutrition research.

[21]  A. Clemente,et al.  Recovery at the terminal ileum of some legume non-nutritional factors in cannulated pigs , 2006 .

[22]  R. Habiba,et al.  Effect of soaking and extrusion conditions on antinutrients and protein digestibility of legume seeds. , 2003 .

[23]  H Boeing,et al.  Validation of a self-administered food-frequency questionnaire administered in the European Prospective Investigation into Cancer and Nutrition (EPIC) Study: comparison of energy, protein, and macronutrient intakes estimated with the doubly labeled water, urinary nitrogen, and repeated 24-h dietary , 1999, The American journal of clinical nutrition.

[24]  M. Muzquiz,et al.  Influence of malting on selected components of soya bean, black bean, chickpea and barley , 1999 .

[25]  José Miguel Aguilera,et al.  Food dehydration and product structure , 2003 .

[26]  Steve L. Taylor,et al.  Advances in Food and Nutrition Research , 2003 .

[27]  J. Frías,et al.  Natural fermentation of lentils , 1995, Zeitschrift fur Lebensmittel-Untersuchung und -Forschung.

[28]  Liliana Jiménez,et al.  Polyphenols: food sources and bioavailability. , 2004, The American journal of clinical nutrition.

[29]  A. G. Cooper,et al.  ON THE HETEROGENEITY OF THREE-TIMES-CRYSTALLIZED ALPHA-CHYMOTRYPSIN. , 1964, Biochemistry.

[30]  D. Barrett,et al.  Comparison of the total phenolic and ascorbic acid content of freeze-dried and air-dried marionberry, strawberry, and corn grown using conventional, organic, and sustainable agricultural practices. , 2003, Journal of agricultural and food chemistry.

[31]  J. Lehrfeld.  HPLC Separation and Quantitation of Phytic Acid and Some Inositol Phosphates in Foods: Problems and Solutions , 1994 .

[32]  F. Lajolo,et al.  In vitro digestibility of albumin proteins from Phaseolus vulgaris L. effect of chemical modification , 1996 .

[33]  M. Muzquiz,et al.  Determination of phytate and lower inositol phosphates in Spanish legumes by HPLC methodology , 1995 .

[34]  C. W. Beninger,et al.  Flavonoid Composition of Three Genotypes of Dry Bean (Phaseolus vulgaris) Differing in Seedcoat Color , 1999 .

[35]  V. L. Singleton,et al.  Colorimetry of Total Phenolics with Phosphomolybdic-Phosphotungstic Acid Reagents , 1965, American Journal of Enology and Viticulture.

[36]  M. Mota,et al.  Novel foods and food ingredients: what is the mission of scientists and technologists? , 2000 .

[37]  G. Fahey,et al.  Chemical components with health implications in wild and cultivated Mexican common bean seeds (Phaseolus vulgaris L.). , 2006, Journal of agricultural and food chemistry.

[38]  B. Chauhan,et al.  Antinutrients and protein digestibility (in vitro) of mungbean as affected by domestic processing and cooking , 1989 .

[39]  W. E. Hillis,et al.  The phenolic constituents of Prunus domestica. I.—The quantitative analysis of phenolic constituents , 1959 .

[40]  M. Muzquiz,et al.  Technical and biotechnological modifications of antinutritional factors in legume and oilseeds. , 2004 .

[41]  M. Messina.  Legumes and soybeans: overview of their nutritional profiles and health effects. , 1999, The American journal of clinical nutrition.