Quality assessment of gluten-free crackers based on buckwheat flour

被引:81
|
作者
Sedej, Ivana [1 ]
Sakac, Marijana [1 ]
Mandic, Anamarija [1 ]
Misan, Aleksandra [1 ]
Pestoric, Mladenka [1 ]
Simurina, Olivera [1 ]
Canadanovic-Brunet, Jasna [2 ]
机构
[1] Univ Novi Sad, Inst Food Technol Novi Sad, Novi Sad 21000, Serbia
[2] Univ Novi Sad, Fac Technol, Novi Sad 21000, Serbia
关键词
Buckwheat; Crackers; Gluten-free; Phenolics; Tocopherols; DPPH; BRAN; COMMON; RUTIN;
D O I
10.1016/j.lwt.2010.11.010
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Formulation and characterization of new products - gluten-free crackers based on two types of buckwheat flour (refined and wholegrain) are presented in this study. Their proximate composition, content of main antioxidant compounds (polyphenols and tocopherols), antioxidant activity (radical scavenging activity on 1,1-diphenyl-2-picrylhydrazyl radicals - DPPH center dot) and sensory quality were analyzed and compared with those of wheat crackers made from refined and wholegrain wheat flours. Protocatechuic acid and ferulic acid were quantified in buckwheat and wheat crackers, while two flavonoids, rutin and quercetin, were quantified only in buckwheat crackers. Content of total phenolics and tocopherols was significantly higher (P < 0.05) in buckwheat crackers in comparison to wheat crackers. Tocopherols in crackers were present in the following order: alpha- >> gamma- > delta-tocopherol. Buckwheat crackers exhibited significantly higher (P < 0.05) radical scavenging activity on DPPH center dot according to their IC50 values. No significant differences were observed in sensory quality of wholegrain buckwheat crackers in comparison to wheat ones. Crackers made from buckwheat flours can broaden the utilization of buckwheat, increase supply of gluten-free products on the market and may be regarded as health-promoting functional foods, especially for celiac disease patients. (c) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:694 / 699
页数:6
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