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Gluten-free baked foods with extended shelf-life.

ABSTRACT: The objective of this study was to develop a formulation that can retard staling/retrogradation of cheese breads without compromising their texture and expansion properties. During baking the dough expands and becomes soft, with lower density. Binary mixtures of cassava starch (Native?+?Oxidized) and with guar gum (Oxidized?+?Guar Gum) as well as a ternary mixture (Native?+?Oxidized?+?Guar Gum) were prepared. The mixtures were analyzed for freeze-thaw stability, expansion, pasting, thermal structural and retrogradation properties. The results were compared with those of sour cassava starch (polvilho azedo-PA), native cassava starch (N) and oxidized cassava starch (O). Moreover, cheese breads were prepared with these mixtures and evaluated during storage. The ternary mixture N?+?O?+?GG showed superior freeze-thaw stability (syneresis of 4.9, 7.8 and 11.0% in 1st, 2nd and 3rd cycles, respectively); the low retrogradation of this sample was confirmed both by DSC and FTIR analyses. The sample N?+?O?+?GG had a high expansion (>?10 mL/g) and the cheese breads developed with this mixture had a slower staling. Our results confirmed that the mixture N?+?O?+?GG can improve formulations of gluten-free baked foods.

SUBMITTER: Granza AG

PROVIDER: S-EPMC6046030 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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Gluten-free baked foods with extended shelf-life.

Granza Andressa Gabardo AG Hornung Polyanna Silveira PS Zielinski Acacio Antonio Ferreira AAF Nogueira Alessandro A Schnitzler Egon E Demiate Ivo Mottin IM

Journal of food science and technology 20180516 8

The objective of this study was to develop a formulation that can retard staling/retrogradation of cheese breads without compromising their texture and expansion properties. During baking the dough expands and becomes soft, with lower density. Binary mixtures of cassava starch (Native + Oxidized) and with guar gum (Oxidized + Guar Gum) as well as a ternary mixture (Native + Oxidized + Guar Gum) were prepared. The mixtures were analyzed for freeze-thaw stability, expansion, pasting, thermal struc ...[more]

PMID: 30065413

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Project description:Notwithstanding a growth in popularity and consumption of gluten-free (GF) food products, there is a lack of substantiated analysis of the nutritional quality compared with their gluten-containing counterparts. To put GF foods into proper perspective both for those who need it (patients with celiac disease) and for those who do not, we provide contemporary data about cost and nutritional quality of GF food products. The objective of this study is to develop a food composition database for seven discretionary food categories of packaged GF products. Nutrient composition, nutritional information and cost of foods from 63 GF and 126 gluten-containing counterparts were systematically obtained from 12 different Austrian supermarkets. The nutrition composition (macro and micronutrients) was analyzed by using two nutrient composition databases in a stepwise approximation process. A total of 63 packaged GF foods were included in the analysis representing a broad spectrum of different GF categories (flour/bake mix, bread and bakery products, pasta and cereal-based food, cereals, cookies and cakes, snacks and convenience food). Our results show that the protein content of GF products is >2 fold lower across 57% of all food categories. In 65% of all GF foods, low sodium content was observed (defined as <120 mg/100 g). Across all GF products, 19% can be classified as source high in fiber (defined as >6g/100 g). On average, GF foods were substantially higher in cost, ranging from +205% (cereals) to +267% (bread and bakery products) compared to similar gluten-containing products. In conclusion, our results indicate that for GF foods no predominant health benefits are indicated; in fact, some critical nutrients must be considered when being on a GF diet. For individuals with celiac disease, the GF database provides a helpful tool to identify the food composition of their medical diet. For healthy consumers, replacing gluten-containing products with GF foods is aligned with substantial cost differences but GF foods do not provide additional health benefits from a nutritional perspective.

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Gluten-free baked foods with extended shelf-life.

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Gluten-free baked foods with extended shelf-life.

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