INTERACTION BETWEEN WHEY PROTEIN NANOPARTICLES AND FATTY ACIDS
Poster Aug 18, 2014
Hassan, Z.M.R*, Awad R. A.*, El-Sayed, M. M. **, Mevat I. Foda**, Otzen, D.*** and Heba H. Salama**
The cytotoxicity of formulated nanoparticle complexes of different fatty acids (oleic, eliedic, Cis-vaccenic, Trans-vaccenic, and linolenic acids) in the presence or absence of whey protein isolate (WPI) was investigated in this study. Nanoparticle complexes formed with WPI was examined for surface tension, circular dichroism (CD), turbidity, isothermal titration calorimetry (ITC) and Cytotoxic activity. Surface tension values were decreased with adding fatty acid to WPI. Cis-fatty acids such as oleic, cis-vaccenic and linolenic caused higher decrease in the surface tension of WPI nanoparticles than that of trans-fatty acids (eledic and trans-vaccenic acids). The tertiary structure of WPI was lost and changed from fold to unfold after binding with fatty acids. The changes in WPI structure would be correlated to exhibit a cytotoxic activity to tumor cells. The turbidity values for nanocomplexes of WPI/fatty acids were lower confirming higher ability in binding fatty acids. All nano complexes formed of WPI/fatty acids exhibited a cytotoxic ability as a lysis in erythrocytes. Nanocomplexes can be formed from WPI with good cytotoxic effect to tumer cells using cis-vaccenic and linolenic fatty acids comparable to oleic acid. It was a new interesting observation being that the nanocomplexes formed of WPI with fatty acids has a comparable cytotoxcisty to that of α-LA and β-lg and can be used in tumor therapy.
Keywords: Nanoparticles; Whey protein isolate; Fatty acids; Surface tension; Circular dichroism; Turbidity; Cytotoxicity.
Identifying Non-Intentionally Added Substances (NIAS) in Food Contact MaterialsPoster
Concern about the safety of food products has increased dramatically with intentionally and non-intentionally added substances (NIAS) used in packaging being of particular interest. APGC and high resolution MS together with a workflow driven process was used to identify unknown compounds in packaging.READ MORE
Human exposure to cyanotoxins: Exploring in vitro detoxification using atmospheric cold plasma treatment to protect human healthPoster
Recently, there have been increases in freshwater harmful algal blooms. There is therefore a need to try and effectively detoxify drinking water contaminated with cyanotoxins to safeguard human health by use of new and novel techniques.READ MORE
From Farm to Landfill: Results of a Campus-Community Awareness Event to Promote Sustainable Food SystemsPoster
In April 2017, a campus-community event (N=42 participants) was held to promote sustainable food systems by educating participants about concepts ranging from food production to nutrition and food waste management. This poster discusses the resulting increased awareness and knowledge of a our local food system among participants, which can be fostered through educational events that combine opportunities for research, teaching, and practice.READ MORE