Avaliação dos compostos bioativos presentes no resíduo de goiaba vermelha (Psidium guajava L.) desidratada

RESUMO O Brasil possui grandes industrias processadoras de goiaba (Psidium guajava L.), as quais geram volumes consideraveis de residuos agroindustriais. Dessa forma, o objetivo desse trabalho foi avaliar o teor bioativo desse residuo, atraves da determinacao do teor de compostos fenolicos totais (metodo de Folin-Ciocalteu), acido ascorbico (titulometrico), carotenoides (metodo espectrofotometrico) e atividade antioxidante (radical DPPH). A secagem foi conduzida em secador convectivo a temperatura de 70 o C e velocidade do ar 5 m/s. Foram observados valores expressivos de acido ascorbico (47,58 mg/100 g) e carotenoides (262,01 μg/100 g) no residuo seco. O material tambem apresentou quantidade relevante de compostos fenolicos (133,73 mg GAE/100 g) e boa atividade antioxidante (9,06 μmol TE/g). Os resultados mostram a presenca de importantes fitoquimicos no residuo desidratado da goiaba vermelha, sendo ele um potencial ingrediente para a industria de alimentos.

• Publication year

  2014

• Venue

  Unknown venue

• Publication date

  2014-09-26

• Fields of study

  Not labeled

• Identifiers
  DOI 10.5151/CHEMENG-COBEQ2014-2060-16058-170849
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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