Journal of Food Processing & Technology

Protective role of the seaweed Halimeda opuntia extract on cadmium-stressed Eruca sativa

2^nd International Conference on Food Safety and Regulatory Measures

June 06-08, 2016 London,UK

Khalil Mahfouz Saad-Allah and Afaf Atif Nessem

Tanta University, Egypt

Scientific Tracks Abstracts: J Food Process Technol

Abstract:

This study was performed in order to explore the possible role of Halimeda opuntia aqueous extract in amelioration the deleterious effects of cadmium stress on Eruca sativa (rocket) during seedling stage. Seeds of E. sativa were primed with 10% aqueous extract of the chlorophyte H. opuntia or in distilled water for 3 h and sown in clay sandy soil (2:1 w/w). Plants were irrigated with tap water for 14 days then received 20 mM CdCl2 or tap water to the age of 40 days. The results showed that cadmium stress resulted in a significant reduction in water content, photosynthetic pigments, soluble sugars and soluble proteins. However, presoaking in H. opuntia extract exerted positive impact on the previous parameters in case of cadmiumunstressed treatment. Additionally, the interactive combination of cadmium stress and algal extract showed a significant amendment of cadmium stress on water content, photosynthetic pigments, sugars and protein contents. However, cadmium stress caused a significant increment in stress indices represented in proline, phenolic compounds and MDA, while priming in H. opuntia extract relatively declined these indices. Priming in the algal extract prior sowing protected E. sativa seedlings against cadmium-induced toxicity. SDS-PAGE of proteins in leaves showed alternation in protein profile in treated plants represented in appearance and disappearance of specific bands.

Biography :

Khalil Saad-Allah has completed his PhD at the age of 32 years from Tanta University on the response of plants to low doses of gamma irradiation. This thesis was published as a book by Lab Lambert publisher in Germany (ISSN: 978-3-659-77766-0). On January, 2015 he had postdoctoral studies from Bath University, Chemical Engineering Department, on the production of biodiesel from depolymerized lignocellulose. He is a member of Quality Assurance Team at Faculty of Science, Tanta University. He has published more than 15 papers in reputed journals and has been serving as an editorial board member of repute. As well as, he is a reviewer in many scientific journals as Natural Product Research, Environmental Mentoring and Assessment, etc.

Email: khalil.saadallah@science.tanta.edu.eg