Stability of vitamin e content of γ-irradiated biscuits
Carregando...
Data
Data de publicação
2007
Autores IPEN
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
É parte de
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 8th/ MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 15th
Exportar
Resumo
The technology of food irradiation is seen by the industry as a means of ensuring food safety, since it exposes
foods to ionizing radiation that kills insects, moulds and bacteria. The need to eliminate bacterial pathogens
from read-to-eat food products must always be balanced with the maintenance of product quality. In addition to
determining the effective ionizing radiation doses required for pathogen elimination the effects of irradiation on
product chemistry, nutritional value and quality must also been determined. Vitamin E (α-tocopherol) is one of
the most potent natural lipophilic antioxidants commonly present in the human diet. As it is considered a free
radical scavenger there is a growing concern that irradiation might reduce the vitamin E content of food
products prepared with ingredients rich in any of the dietary source of the vitamin. This work describes the
effects of ionizing radiation on the vitamin E content of some biscuits commercially found in the market. Three
lots of biscuits were used. Irradiation was performed in a 60Co Gammacell 220 source, dose rate of about
3.5kGy/h at doses of 1kGy and 3kGy. For vitamin E determination samples were saponified with ethanolic
potassium hydroxide in the presence of pyrogallol, and the tocopherols were extracted with petroleum ether. The
absorbance was measured at 520 nm. From the obtained results it is possible to conclude that there was a
notorious stability of the vitamin content of the biscuits submitted to γ-irradiation at the assayed doses.
Como referenciar
TAIPINA, MAGDA S.; MASTRO, NELIDA L. del; LAMARDO, LEDA C.A. Stability of vitamin e content of γ-irradiated biscuits. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 8th/ MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 15th, Sept. 30 - Oct. 5, 2007, Santos, SP. Proceedings... Disponível em: http://repositorio.ipen.br/handle/123456789/15777. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.