Four oat β -glucan enriched hydrocolloids (Nutrim10, C-Trim20, C-Trim30, C-Trim50), oat bran concentrate (OBC), and β -Glucan95 were investigated for antioxidant and pasting properties. C-Trim30 had the highest soluble phenolic content, followed by C-Trim20. The trend of antioxidant activity was similar with that of phenolic contents. The phenolic content of the extracts increased with increasing temperatures. The highest content of soluble phenolic compounds was found at temperatures up to 100℃ for most samples regardless of solvent. Water extracts had significantly higher phenolic contents than extracts from 50% ethanol at 100℃ for all samples with the exception of C-Trim30. However, the effect of temperature and solvent concentrations was not as apparent for antioxidant activity as that observed for phenolic content. In general, the differences in three different solvents were not as apparent. Significantly higher water holding capacities were found for C-Trim30 and C-Trim50 than the other samples while β -Glucan 95 had substantially the highest paste viscosity followed by C-Trim50 and C-Trim30.
C.-Y. Chen, P. E. Milbury, H.-K. Kwak, F. W. Collins, P. Samuel and J. B. Blumberg, “Avenanthramides and Phenolic Acids from Oats Are Bioavailable and Act Synergistically with Vitamin C to Enhance Hamster and Human LDL Resistance to Oxidation,” Journal of Nutrition, Vol. 134, No. 6, 2004, pp. 1459-1466.
A. Berg, D. K?nig, P. Deibert, D. Grathwohl, A. Berg, M. W. Baumstark and I. W. Franz, “Effect of an Oat Bran Enriched Diet on the Atherogenic Lipid Profile in Patients with an Increased Coronary Heart Disease Risk,” Annals of Nutrition and Metabolism, Vol. 47, No. 6, 2003, pp. 306-311. doi:10.1159/000072404
N. Tapola, H. Karvonen, L. Niskanen, M. Mikola and E. Sarkkinen, “Glycemic Responses of Oat Bran Products in Type 2 Diabetic Patients,” Nutrition, Metabolism & Cardiovascular Diseases, Vol. 15, No. 4, 2005, pp. 255-261. doi:10.1016/j.numecd.2004.09.003
J. He, R. H. Streiffer, P. Muntner, M. A. Krousel-Wood, and P. K. Whelton, “Effect of Dietary Fiber Intake on Blood Pressure: A Randomized, Double-Blind, Placebo-Controlled Trial,” Journal of Hypertension, Vol. 22, No. 1, 2004, pp. 73-80. doi:10.1097/00004872-200401000-00015
K. K. A. Adom and R. H. Liu, “Antioxidant Activity of Grains,” Journal of Agriculture and Food Chemistry, Vol. 50, No. 21, 2002, pp. 6182-6187. doi:10.1021/jf0205099
Z. Zduńczyk, M. Flis, H. Zieliński, M. Wróblewska, Z. Antoszkiewicz and J. Ju?kiewicz, “In Vitro Antioxidant Activities of Barley, Husked Oat, Naked Oat, Triticale, and Buckwheat Wastes and Their Influence on the Growth and Biomarkers of Antioxidant Status in Rats,” Journal of Agricultural and Food Chemistry, Vol. 54, 2006, pp. 4168-4175. doi:10.1021/jf060224m
T. Madhujith and F. Shahidi, “Antioxidative and Antiproliferative Properties of Selected Barley (Hordeum vulgare L.) Cultivars and Their Potential for Inhibition of Low-Density Lipoprotein (LDL) Cholesterol Oxidation,” Journal of Agricutlural and Food Chemistry, Vol. 55, 2007, pp. 5018-5024. doi:10.1021/jf070072a
G. E. Inglett, “Soluble Hydrocolloid Food Additives and Method of Making,” US Patent 6,060,519, 2000.
C. F. Klopfenstein, “The Role of Cereal Beta-Glucans in Nutrition and Health,” Cereal Food Worlds, Vol. 33, 1988, pp. 865-869.
D. M. Peterson, C. L. Emmons and A. H. Hibbs, “Phenolic Antioxidants and Antioxidant Activity in Pearling Fractions of Oat Groats,” Journal of Cereal Science, Vol. 33, No. 1, 2001, pp. 97-103. doi:10.1006/jcrs.2000.0347
L. Liu, L. Zubik, F. W. Collins, M. Marko and M. Meydani, “The Antiatherogenic Potential of Oat Phenolic Compounds,” Atherosclerosis, Vol. 175, No. 1, 2004, pp. 39-49. doi:10.1016/j.atherosclerosis.2004.01.044
S. Sayar, J.-L. Jannink and P. J. White, “In Vitro Bile Acid Binding Activity within Flour Fractions from Oat Lines with Typical and High β-Glucan Amounts,” Journal of Agricultural and Food Chemistry, Vol. 54, 2006, pp. 5142-5148. doi:10.1021/jf060384y
D. G. Stevenson, G. E. Inglett, D. Chen, A. Biswas, F. J. Eller and R. L. Evangelista, “Phenolic Content and Antioxidant Capacity of Supercritical Carbon Dioxide-Treated and Air-Classified Oat Bran Concentrate Microwave-Irradiated in Water or Ethanol at Varying Temperatures,” Food Chemistry, Vol. 108 , 2008, pp. 23-30. doi:10.1016/j.foodchem.2007.08.060
L. Brindzová, M. Mikulá?ová, M. Takácsová, S. Mo?ovská and A. Opattová, “Evaluation of the Mutagenicity and Antimutagenicity of Extracts from Oat, Buckwheat and Wheat Bran in the Salmonella/Microsome Assay,” Journal of Food Composition and Analysis, Vol. 22, No. 1, 2009, pp. 87-90. doi:10.1016/j.jfca.2008.07.009
R. H. Auerbach and D. A. Gray, “Oat Antioxidant Extraction and Measurement—Towards a Commercial Process,” Journal of the Science of Food and Agriculture, Vol. 79, 1999, pp. 385-389. doi:10.1002/(SICI)1097-0010(19990301)79:3 3.0.CO;2-L
K. J. Duve and P. J. White, “Extraction and Identification of Antioxidants in Oats,” Journal of the American Oil Chemist’s Society, Vol. 68, No. 6, 1991, pp. 365-370. doi:10.1007/BF02663751
K. Zhou and L. Yu, “Effects of Extraction Solvent on Wheat Bran Antioxidant Activity Estimation,” Lebensmittel-Wissenschaft und-Technologie, Vol. 37, 2004, pp. 717-721.
H. Zieliński and H. Koz?owska, “Antioxidant Activity and Total Phenolics in Selected Cereal Grains and Their Different Morphological Fractions,” Journal of Agricultural and Food Chemistry, Vol. 48, No. 6, 2000, pp. 2008-2016. doi:10.1021/jf990619o
M. Bonoli, V. Verardo, E. Marconi and M. F. Caboni, “Antioxidant Phenols in Barley (Hordeum vulagare L.) Flour: Comparative Spectrophotometric Study among Extraction Methods of Free and Bound Phenolic Compounds,” Journal of Agricultural and Food Chemistry, Vol. 52, 2004, pp. 5195-5200. doi:10.1021/jf040075c
T. Madhujith, M. Izydorczyk and F. Shahidi, “Antioxidant Properties of Pearled Barley Fractions,” Journal of Agricultural and Food Chemistry, Vol. 54, 2006, pp. 3283-3289. doi:10.1021/jf0527504
S. Maneepun, T. Boonpunt and G. E. Inglett, “Sensory and Nutritional Evaluation of Co-Processed Nutrim OB and Soy Flour in Thai Dishes,” 216th ACS National Meeting, AGFD-099, Boston, 1998, p.31.
K. Warner and G. E. Inglett, “Flavor and Texture Characteristics of Foods Containing Nutrim Oat Bran Hydrocolloid,” 216th ACS National Meeting, AGFD-97, Boston, 1998, p. 31.
S. Lee, G. E. Inglett and C. J. Carriere, “Effect of Nutrim Oat Bran and Flaxseed on Rheological Properties of Cakes,” Cereal Chemistry, Vol. 81, No. 5, 2004, pp. 637-642. doi:10.1094/CCHEM.2004.81.5.637
S. Lee and G. E. Inglett, “Rheological and Physical Evaluation of Jet-Cooked Oat Bran in Low Calorie Cookies,” International Journal of Food Science and Technology, Vol. 41, No. 5, 2006, pp. 553-559. doi:10.1111/j.1365-2621.2005.01105.x
S. Kim, G. E. Inglett and S. X. Liu, “Content and Molecular Weight Distribution of Oat β-Glucan in Oatrim, Nutrim, and C-Trim Products,” Cereal Chemistry, Vol. 85, No. 5, 2008, pp. 701-705. doi:10.1094/CCHEM-85-5-0701
P. S. Thondre, L. Ryan and C. J. K. Henry, “Barley β-Glucan Extracts as Rich Sources of Polyphenols and Antioxidants,” Food Chemistry, Vol. 126, No. 1, 2011, pp. 72-77. doi:10.1016/j.foodchem.2010.10.074
P. Sharma and H. S. Gujral, “Antioxidant and Polyphenol Oxidase Activity of Germinated Barley and Its Milling Fractions,” Food Chemistry, Vol. 120, 2010, pp. 673-678. doi:10.1016/j.foodchem.2009.10.059
A. L. Waterhouse, “Determination of Total Phenolics,” In: R. E. Wrolstad, Ed., Current Protocols in Food Analytical Chemistry, John Wiley & Sons, New York, 2001, pp I.1.1.1-I.1.1.8.
L. Yu and K. Zhou, “Antioxidant Properties of Bran Extracts from Platte Wheat Grown at Different Locations,” Food Chemistry, Vol. 90, 2004, pp. 311-316. doi:10.1016/j.foodchem.2004.04.007
I. S?ensoy, R. T. Rosen, C.-T. Ho and M. V. Karwe, “Effect of Processing on Buckwheat Phenolics and Antioxidant Activity,” Food Chemistry, Vol. 99, No. 2, 2006, pp. 388-393. doi:10.1016/j.foodchem.2005.08.007
B. I. O. Ade-Omowaye, K. A. Taiwo, N. M. Eshtiaghi, A. Angersbach and D. Knorr, “Comparative Evaluation of the Effects of Pulsed Electric Field and Freezing on Cell Membrane Permeabilisation and Mass Transfer during Dehydration of Red Bell Peppers,” Innovative Food Science and Emerging Technologies, Vol. 4, 2003, pp. 177188. doi:10.1016/S1466-8564(03)00020-1
SAS Institute Inc., “The SAS? system for Windows?,” Version 8e, Cary, 1999.
A. Siger, M. Nogala-Kalucka and E. Lampart-Szczapa, “The Content and Antioxidant Activity of Phenolic Compounds in Cold-Pressed Plant Oils,” Journal of Food Lipids, Vol. 15, No. 2, 2008, pp. 137-149. doi:10.1111/j.1745-4522.2007.00107.x
V. G?kmen, A. Serpen and V. Fogliano, “Direct Measurement of the Total Antioxidant Activity of Foods: The ‘QUENCHER’ Approach,” Trends in Food Science and Technology, Vol. 20, No. 6-7, 2009, pp. 278-288.
Y. Xing and P. J. White, “Identification and Function of Antioxidants from Oat Groats and Hulls,” Journal of the American Oil Chemist’s Society, Vol. 74, 1997, pp. 303307. doi:10.1007/s11746-997-0141-x
S. Bryngelsson, L. H. Dimberg and A. Kamal-Eldin, “Effects of Commercial Processing on Levels of Antioxidants in Oats (Avena sativa L.),” Journal of Agricultural and Food Chemistry, Vol. 3, No. 50, 2002, pp. 18901896. doi:10.1021/jf011222z
G. E. Inglett, D. Chen, M. Berhow and S. Lee, “Antioxidant Activity of Commercial Buckwheat Flours and Their Free and Bound Phenolic Composition,” Food Chemistry, Vol. 125, 2010, pp. 923-929. doi:10.1016/j.foodchem.2010.09.076
A. Liazid, M. Palma, J. Brigui and C. G. Barroso, “Investigation on Phenolic Compounds Stability during Microwave-Assisted Extraction,” Journal of Chromatography A, Vol. 1140, No. 1-2, 2007, pp. 29-34.
D. P. Makris and J. T. Rossiter, “Heat-Induced, MetalCatalyzed Oxidative Degradation of Quercetin and Rutin (Quercetin 3-O-Rhamnosylglucoside) in Aqueous Model Systems,” Journal of Agricultural and Food Chemistry, Vol. 48, No. 9, 2000, pp. 3830-3838. doi:10.1021/jf0001280
M. Watanabe, Y. Ohshita and T. Tsushida, “Antioxidant Compounds from Buckwheat (Fagopyrum esculentum M?ench) Hulls,” Journal of Agricultural and Food Chemistry, Vol. 45, 1991, pp. 1039-1044. doi:10.1021/jf9605557
G. E. Inglett, D. J. Rose, D. G. Stevenson, D. Chen and A. Biswas, “Total Phenolics and Antioxidant Activity of Water and Ethanolic Extracts from Distillers Dried Grains with Soluble with or without Microwave Irradiation,” Cereal Chemistry, Vol. 86, 2009, pp. 661-664. doi:10.1094/CCHEM-86-6-0661
T. Sun and C. T. Ho, “Antioxidant Activities of Buckwheat Extracts,” Food Chemistry, Vol. 90, No. 4, 2005, pp. 743-749. doi:10.1016/j.foodchem.2004.04.035
S. Guyot, N. Marnet, D. Laraba, P. Sanoner and J.-F. Drilleau, “Reversed-Phase HPLC Following Thiolysis for Quantitative Estimation and Characterization of the Four Main Classes of Phenolic Compounds in Different Tissue Zones of a French Cider Apple Variety (Malus domestica var. Kermerrien),” Journal of Agricultural and Food Chemistry, Vol. 46, No. 5, 1998, pp. 1698-1705. doi:10.1021/jf970832p
P. Jankovska, J. Copikova, A. Sinitsya and M. Novotna, “The Effect of Ferulic Acid on the Structure of Plant Cell Wall and Its Determination,” Czech Journal of Food Science, Vol. 18, 2000, pp. 182-183.
H. D. Shin, S. McClendon, T. Le, F. Taylor and R. R. Chen, “A Complete Enzymatic Recovery of Ferulic Acid from Corn Residues with Extracellular Enzymes from Neosartorya Spinosa NRRL185,” Biotechnology and Bioengineering, Vol. 95, No. 6, 2006, pp. 1108-1115. doi:10.1002/bit.21056
H. Zhao, J. Dong, J. Lu, J. Chen, Y. Li, L. Shan, Y. Lin, W. Fan and G. Gu, “Effects of Extraction Solvent Mixtures on Antioxidant Activity Evaluation and Their Extraction Capacity and Selectivity for Free Phenolic Compounds in Barley (Hordeum vulgare L.),” Journal of Agricultural and Food Chemistry, Vol. 54, No. 19, 2006, pp. 7277-7286. doi:10.1021/jf061087w
H.-M. Lai and H.-H. Cheng, “Properties of Pregelatinized Rice Flour Made by Hot Air or Gum Puffing,” International Journal of Food Science and Technology, Vol. 39, No. 2, 2004, pp. 201-212. doi:10.1046/j.0950-5423.2003.00761.x
M. Guha, S. Zakiuddin and S. Bhattacharya, “Effect of Barrel Temperature and Screw Speed on Rapid Viscoanalyser Pasting Behavior of Rice Extrudate,” International Journal of Food Science & Technology, Vol. 33, 1998, pp. 259-266. doi:10.1046/j.1365-2621.1998.00189.x
D. G. Stevenson, F. J. Eller, M. Radosavljevi?, J. Jane and G. E. Inglett, “Characterisation of Oat Bran Products with and without Supercritical Carbon Dioxide Extraction,” International Journal of Food Science & Technology, Vol. 42, No. 12, 2007, pp. 1489-1496. doi:10.1111/j.1365-2621.2006.01370.x