Flour blending based on crude fat is more crucial than ash content in view of prolonged quality assurrance

Li Yun Lin, Chiung Chi Peng, Tsung Han Wu, Tung Hsi Yu, Cheng Chang Chen, Hui Er Wang, Robert Y. Peng

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Conventionally, the ash content has been a quality control index for flour grading and blending. However, commercially, such a criteria is often found unreliable. In the present study, no significant correlation between the ash- and crude fat contents was found. Conversely, significant correlation was identified between the lipoxygenase activity and the crude fat. Furthermore, from the confirmatory experiment using the standardized synthetic formula, significant relationships were found among the crude fat content, the lipid peroxidative enzymes including the lipoxygenase, hydroperoxide lyase and peroxidase, which apparently could account for the progress of flour off-odor. In contrast, only poor correlation was found with the ash content. In addition, the sensory evaluation in parallel also supported such a result. Conclusively, the crude fat content could be a more reliable parameter than ash content to serve as a novel indicator for flour grading and blending.

Original languageEnglish
Pages (from-to)104-126
Number of pages23
JournalJournal of Food Processing and Preservation
Volume34
Issue number1
DOIs
Publication statusPublished - Feb 2010
Externally publishedYes

Fingerprint

Ashes
Flour
Oils and fats
ash content
flour
Fats
lipid content
lipoxygenase
Lipoxygenase
lipids
off odors
lyases
hydroperoxides
quality control
sensory evaluation
peroxidase
Odors
Quality Control
Lipids
Peroxidase

ASJC Scopus subject areas

  • Food Science
  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Flour blending based on crude fat is more crucial than ash content in view of prolonged quality assurrance. / Lin, Li Yun; Peng, Chiung Chi; Wu, Tsung Han; Yu, Tung Hsi; Chen, Cheng Chang; Wang, Hui Er; Peng, Robert Y.

In: Journal of Food Processing and Preservation, Vol. 34, No. 1, 02.2010, p. 104-126.

Research output: Contribution to journalArticle

Lin, Li Yun ; Peng, Chiung Chi ; Wu, Tsung Han ; Yu, Tung Hsi ; Chen, Cheng Chang ; Wang, Hui Er ; Peng, Robert Y. / Flour blending based on crude fat is more crucial than ash content in view of prolonged quality assurrance. In: Journal of Food Processing and Preservation. 2010 ; Vol. 34, No. 1. pp. 104-126.
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