Production of flat bread by continuous extrusion cooking from high α-amylase flours

Pekka Linko (Corresponding Author), Carina Mattson, Yu-Yen Linko, Juhani Antila

Research output: Contribution to journalArticleScientificpeer-review

32 Citations (Scopus)

Abstract

Flat bread was produced by direct continuous extrusion cooking from mixtures (1:1) of wheat and rye flours both of normal (falling number 183) and high (falling number 61) α-amylase activity. A Creusot—Loire BC 45 twin-screw extrusion cooker (with 600 mm screws having 50 mm reverse pitch screw elements next to the die) was employed. Special adjustable rolls were designed and constructed to flatten the crisp-bread after emerging from the die. Raw materials were introduced at total feed rates varying from 300 to 450 g/min at feed moisture contents of 15,17 and 19%. The mass temperature at the die varied from 152 to 166°C, and the product moisture content from 6·2 to 9·9%. The products were tested both by chemical analysis and by sensory evaluation. No significant differences were observed between products obtained from normal and high α-amylase flours, suggesting that high α-amylase activity flours may be used successfully in the continuous production of flat bread by direct extrusion cooking.

Original languageEnglish
Pages (from-to)43 - 51
Number of pages9
JournalJournal of Cereal Science
Volume2
Issue number1
DOIs
Publication statusPublished - 1984
MoE publication typeNot Eligible

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flat breads
Bread
Cooking
Flour
Amylases
screws
amylases
extrusion
Extrusion
falling number
cooking
flour
Moisture
rye flour
cookers
water content
wheat flour
chemical analysis
breads
Triticum

Cite this

Linko, Pekka ; Mattson, Carina ; Linko, Yu-Yen ; Antila, Juhani. / Production of flat bread by continuous extrusion cooking from high α-amylase flours. In: Journal of Cereal Science. 1984 ; Vol. 2, No. 1. pp. 43 - 51.
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Production of flat bread by continuous extrusion cooking from high α-amylase flours. / Linko, Pekka (Corresponding Author); Mattson, Carina; Linko, Yu-Yen; Antila, Juhani.

In: Journal of Cereal Science, Vol. 2, No. 1, 1984, p. 43 - 51.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

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AU - Linko, Pekka

AU - Mattson, Carina

AU - Linko, Yu-Yen

AU - Antila, Juhani

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AB - Flat bread was produced by direct continuous extrusion cooking from mixtures (1:1) of wheat and rye flours both of normal (falling number 183) and high (falling number 61) α-amylase activity. A Creusot—Loire BC 45 twin-screw extrusion cooker (with 600 mm screws having 50 mm reverse pitch screw elements next to the die) was employed. Special adjustable rolls were designed and constructed to flatten the crisp-bread after emerging from the die. Raw materials were introduced at total feed rates varying from 300 to 450 g/min at feed moisture contents of 15,17 and 19%. The mass temperature at the die varied from 152 to 166°C, and the product moisture content from 6·2 to 9·9%. The products were tested both by chemical analysis and by sensory evaluation. No significant differences were observed between products obtained from normal and high α-amylase flours, suggesting that high α-amylase activity flours may be used successfully in the continuous production of flat bread by direct extrusion cooking.

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