Effect of roasting on tocopherols of gourd seeds (Cucurbita pepo)

Authors

  • Gemrot François Cirad-Amis, UR N°24 Food quality, TA 40/16, 34398 Montpellier Cedex 5
  • Barouh Nathalie Cirad-Amis, UR N°24 Food quality, TA 40/16, 34398 Montpellier Cedex 5
  • Vieu Jean-Pierre Exploitation agricole Les fleurs de Jaussely
  • Pioch Daniel Cirad-Amis, UR N°24 Food quality, TA 40/16, 34398 Montpellier Cedex 5
  • Montet Didier Cirad-Amis, UR N°24 Food quality, TA 40/16, 34398 Montpellier Cedex 5

DOI:

https://doi.org/10.3989/gya.2006.v57.i4.67

Keywords:

Cucurbita pepo, Gourd, Roasting, Tocopherol, Vitamin E

Abstract


The effect of roasting at high temperatures on the Vitamin E in hulled gourd seeds of Cucurbita pepo was studied. Roasting at 140°C for 5 min induced a swelling of the seed with an increase in volume of 43 %, and a weight loss of 6.5 %.The seed acquired the desired puffed-up appearance. The water activity of raw seeds was 0.544 and decreased during roasting to 0.105. Cucurbita pepo seeds contained 51.0 % fat. Tocopherol content of roasted seeds was 68mg/100g oil and of non roasted seeds was 107mg/100g oil. γ-tocopherol represented 96% of the total tocopherols. Total tocopherol loss during roasting was 36%. β-tocopherol loss was the highest at 50%; for α-tocopherol it was 41% and for γ-tocopherol it was 36%.

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Published

2006-12-31

How to Cite

1.
François G, Nathalie B, Jean-Pierre V, Daniel P, Didier M. Effect of roasting on tocopherols of gourd seeds (Cucurbita pepo). Grasas aceites [Internet]. 2006Dec.31 [cited 2024Feb.28];57(4):409-14. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/67

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