文章基本信息

标题：Hydroxymethylfurfural content and colour parameters of cookies with defatted wheat germ
本地全文：下载
作者：Marijana Sakač ; Marijana Sakač ; Pavle Jovanov 等
期刊名称：Czech Journal of Food Sciences
印刷版ISSN：1212-1800
电子版ISSN：1805-9317
出版年度：2019
卷号：37
期号：4
页码：285-291
DOI：10.17221/324/2017-CJFS
出版社：Czech Academy of Agricultural Sciences
摘要：Defatted wheat germ was used to substitute wheat flour by 5–15% to produce cookies enriched with protein, fat, sugar and minerals. The effects of different level of substitution of wheat flour by defatted wheat germ and dough moisture content (20–24%) on hydroxymethylfurfural (HMF) formation in cookies were investigated. Colour parameters (L*, a*, and b*) were also measured, total colour difference (ΔE) and browning index (BI) were calculated and their correlations with HMF content were studied. The substitution of wheat flour by defatted wheat germ led to a higher HMF content compared to control cookies (P < 0.05). However, its formation was more strongly influenced by the dough moisture content than by the level of substitution. HMF content is positively correlated to the a* (r = 0.890; P < 0.01), b* (r = 0.605; P < 0.01) and BI (r = 0.710; P < 0.01) values, and negatively correlated to the L* (r = –0.624; P < 0.01). Results of the HMF formation and the correlation between HMF content and colour parameters were confirmed by the PCA analysis..
关键词：browning marker; colour changes; cookies