desenvolvimento de salgadinhos com teores reduzidos de gordura saturada e de ácidos graxos trans development of snacks with reduced saturated and trans fatty acids contents

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ID: 235931
2005
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Abstract
A gordura vegetal hidrogenada, veículo convencional para aromatização de salgadinhos, foi substituída parcial ou totalmente por óleo de canola, gerando um novo salgadinho com 73,8% de redução da gordura saturada em relação aos salgadinhos disponíveis no mercado e eliminação dos ácidos graxos trans. Foi avaliado o impacto desta substituição sobre as características sensoriais do produto. Ao se substituir totalmente a gordura, a alteração de cor, medida pela variação da somatória dos atributos de cor deltaE, foi de 2,04. A substituição da gordura em até 50% não alterou a textura significativamente (p<0,05); entretanto, quando esta substituição foi igual ou superior a 75% houve diferença em relação à amostra padrão. Foi percebida alteração de textura pelos provadores quando a amostra padrão (22% gordura) foi confrontada com a amostra aromatizada com 22% de óleo. A amostra padrão apresentou maior aceitabilidade sensorial. Pelos resultados, concluiu-se que as características sensoriais do produto são fracamente afetadas pela substituição da gordura vegetal hidrogenada pelo óleo de canola. Abordagens como esta podem ser utilizadas em escala industrial, gerando produtos diferenciados e contribuindo para diminuição da ingestão dos ácidos graxos saturados e ácidos graxos trans.
The hydrogenated vegetable fat normally used as a vehicle for flavoring snacks, has been partially or totally replaced by rapeseed oil, resulting in a new snack with 73,8% less saturated fat than regular snacks. This new product doesn't have any trans fatty acids in its composition. The impact of this replacement in sensorial characteristics of this product has been analyzed. In the sample where the fat had been totally replaced the color change was deltaE=2.04. It has been also noticed that replacement up to 50% did not cause any significant changes on texture (p<0.05). However, when this replacement is over 75%, a texture difference was observed as compared to the standard sample. In the sensorial analysis, the standard sample (22% fat) was compared to the one flavored with 22% rapeseed oil, and the difference in texture was noticed, with the sample flavored with vegetable fat presenting better sensory acceptance. Based on our results, we concluded that the sensorial characteristics of this product were not affected practically after the replacement of regular fat by rapeseed oil, making approaches like this viable to be used on an industrial scale with the purpose to help reducing the intake of saturated and trans fatty acids by the population.
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capriles2005fooddesenvolvimento Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Vanessa D. Capriles;José A.G. Arêas
Journal software - practice and experience
Year 2005
DOI
10.1590/S0101-20612005000200031
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612005000200031
Keywords
snacks foods and food supplytechnology (general)

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