4. Conclusion
With this study, we can conclude that it is possible to produce frozen part-baked pan breads that are well accepted by consumers and with good technological properties with the dietary fibre sources evaluated. As expected, wheat bran was the fibre source that most affected colour parameters (L*, C* and h) and sensory acceptance scores for crumb colour and appearance. Resistant starch and LBG influenced these parameters, but in a more discrete form. However, these two fibre sources did show an effect on moisture retention of re-baked part-baked breads during all the shelf-life period. In relation to conventional breads, it was verified that the freezing, frozen storage and re-baking stages through which part-baked breads went through had some effect on the structure of part-baked breads, and the effect of these processing steps could have been greater than the effect of the different fibre sources for specific volume, texture acceptance and positive pur- chase intention, once these parameters were influenced by fibres in conventional breads but not in re-baked part-baked breads. Fibre also did not influence crust colour acceptance, crust appearance acceptance, aroma acceptance, taste acceptance and hardness obtained in the texture profile analysis (TPA) after one, four and seven days from baking of re-baked part-baked breads. Even though the dietary fibre sources did not interfere with various at- tributes of the sensory evaluation, the part-baked breads produced presented a good structure and a positive acceptance for all the attributes evaluated. The addition of dietary fibre sources to improve technological and nutritional characteristics of part-baked breads is viable. Apart from this, the combined addition of different types of fibres to reach an adequate dietary fibre content in the product was shown to be beneficial, once it can optimize bread quality characteristics.
4. Conclusion
With this study, we can conclude that it is possible to produce frozen part-baked pan breads that are well accepted by consumers and with good technological properties with the dietary fibre sources evaluated. As expected, wheat bran was the fibre source that most affected colour parameters (L*, C* and h) and sensory acceptance scores for crumb colour and appearance. Resistant starch and LBG influenced these parameters, but in a more discrete form. However, these two fibre sources did show an effect on moisture retention of re-baked part-baked breads during all the shelf-life period. In relation to conventional breads, it was verified that the freezing, frozen storage and re-baking stages through which part-baked breads went through had some effect on the structure of part-baked breads, and the effect of these processing steps could have been greater than the effect of the different fibre sources for specific volume, texture acceptance and positive pur- chase intention, once these parameters were influenced by fibres in conventional breads but not in re-baked part-baked breads. Fibre also did not influence crust colour acceptance, crust appearance acceptance, aroma acceptance, taste acceptance and hardness obtained in the texture profile analysis (TPA) after one, four and seven days from baking of re-baked part-baked breads. Even though the dietary fibre sources did not interfere with various at- tributes of the sensory evaluation, the part-baked breads produced presented a good structure and a positive acceptance for all the attributes evaluated. The addition of dietary fibre sources to improve technological and nutritional characteristics of part-baked breads is viable. Apart from this, the combined addition of different types of fibres to reach an adequate dietary fibre content in the product was shown to be beneficial, once it can optimize bread quality characteristics.
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