کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5132851 1492059 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of chemical composition and baking on in vitro digestibility of proteins in breads made from selected gluten-containing and gluten-free flours
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Effects of chemical composition and baking on in vitro digestibility of proteins in breads made from selected gluten-containing and gluten-free flours
چکیده انگلیسی


- Protein-standardized digestibility of breads prepared from selected cereal and pseudo-cereal flours were compared.
- Digestibility generally increased during proofing and decreased during baking.
- Higher protein digestibility correlated with non-fibre carbohydrate to protein ratio.
- Lower protein digestibility correlated with fibre and phytochemical flour contents.

Breads prepared from cereal grains are a dietary staple, providing a significant proportion of daily energy, but not necessarily of dietary protein. However, good digestibility of proteins in bread is important to avoid potential immunogenic effects of undigested peptides, including for those gluten-intolerant. Four gluten-containing (white wheat, wholemeal wheat, spelt and rye) and four gluten-free (chick pea, lupin, buckwheat, amaranth) flours were used to make yeast-leavened breads standardized for protein. In vitro gastro-intestinal digestion of pre-mixes, doughs and breads baked for 20 and 35 min was conducted followed by correlation analysis between fitted parameters of digestion profiles, chemical composition (protein, non-fibre carbohydrates, fibre, ash and total polyphenolics) and amino acid profiles. The results indicated that digestibility generally increased during proofing and decreased during baking. Relatively higher protein digestibility was correlated with ratio of non-fibre carbohydrate to protein and lower digestibility with increasing contents of fibre and total polyphenolics in pre-mixes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 233, 15 October 2017, Pages 514-524
نویسندگان
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