Bioplastics made from protein sources such as albumin and whey have shown significant antibacterial properties, findings that could eventually lead to their use in plastics used in medical applications such as wound healing dressings, sutures, catheter tubes and drug delivery, according to a recent study by the University of Georgia College of Family and Consumer Sciences. The bioplastic materials could also be used for food packaging. Researchers tested three non traditional bioplastic materials-albumin, whey and soy proteins-as alternatives to conventional petroleum-based plastics that pose risks of contamination. In particular, albumin, a protein found in egg whites, demonstrated tremendous antibacterial properties when blended with a traditional plasticizer such as glycerol. "It was found that it had complete inhibition, as in no bacteria would grow on the plastic once applied," said Alex Jones, a doctoral student in the department of textiles, merchandising and interiors. "The bacteria wouldn't be able to live on it." The study appears in the online version of the Journal of Applied Polymer Science. One of the researchers' aims is to find ways to reduce the amount of petroleum used in traditional plastic production; another is to find a fully biodegradable bioplastic. The albumin-glycerol blended bioplastic met both standards, Jones said. "If you put it in a landfill, this being pure protein, it will break down," he said. "If you put it in soil for a month-at most two months-these plastics will disappear." The next step in the research involves a deeper analysis of the albumin-based bioplastic's potential for use in the biomedical and food packaging fields. As noted in the study, 4.5 hospital admissions out of every 100 in the U.S. in 2002 resulted in a hospital-acquired infection. In addition to the risk of contamination in hospitals, food contamination as a result of traditional plastics is a notable risk. Researchers are encouraged by the antimicrobial properties of albumin-based bioplastics that could potentially reduce these risks through drug elution-loading the bioplastic with either drugs or food preservatives that can kill bacteria or prevent it from spreading. Study co-authors are Suraj Sharma in the department of textiles, merchandising and interiors and Abhyuday Mandal in the department of statistics, who aided in the statistical analysis and discussion. One of the researchers' aims is to find ways to reduce the amount of petroleum used in traditional plastic production; another is to find a fully biodegradable bioplastic. The albumin-glycerol blended bioplastic met both standards, Jones said. "If you put it in a landfill, this being pure protein, it will break down," he said. "If you put it in soil for a month-at most two months-these plastics will disappear." The next step in the research involves a deeper analysis of the albumin-based bioplastic's potential for use in the biomedical and food packaging fields. Researchers are encouraged by the antimicrobial properties of albumin-based bioplastics that could potentially reduce the risk of food contamination by loading bioplastics with drugs and food preservatives that can kill bacteria or prevent it from spreading. |
13-Feb-24
Greetings I would like to learn more about this technology please. I have an invention idea in which I am looking for something much like what you are speaking of. Please contact me at either of the above sources if you would be willing to answer a few questions for me. Thank you so much for your time and your continued efforts in this field. Sincerely, JoeAnna Malone
14-Jul-19
This is air pollution - basically off gassing toxic chemicals. In the same way previously air fresheners did NOT neutralise smells but added to pollution of IAQ (indoor air quality) Thanks to chemicals like Dichlorobenzene, I now have organ damage, fragrance allergies etc.... so I suggest you run spectrum analysis to see exactly what is in the air and being given off by this.