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The Technion (Israel Institute of Technology) Tests – Bio Fresh
The Technion Institute for Research and Development
July 25, 2002
Packaging Laboratory
Grofit Plastics
M.P. Eilot 88825
Fax: 086357723
Dear Sir,
RE: Bio Fresh Film designed for coming into contact with food, manufactured by “Grofit” – Testing in accordance with FDA regulations
Description of the Samples: Bio fresh film manufactured by “Grofit”. The samples were selected and brought to the packaging laboratory by the client.
Objective of the Tests: To see if the plastic films are suitable for coming into contact with food and comply with the Code of Federal Regulations, FDA 21.
Methodology of the Testing:
The tests were conducted in accordance with the Code of Federal Regulations 21 and 177.1520: Olefin Polymers.
The following tests were conducted:
- The maximum extractable fraction: a sample that had previously been weighed was heated to a temperature of 50ºC, cooled and the filtrate dissipated. The remains were weighed and calculated as the measure of the segment that can be utilized by dissolving.
- The maximum dissolvable fraction: the polymer was completely dissolved at a temperature of 120ºC. The solution was left to cool without stirring and as a result, the non-dissolvable part sank and was filtered out. The total of the solid content was set as the measure of the dissolved segment.
Results:
The results relate solely to the tested samples.
The results reported are the average of at least repetitions of each test.
The maximum extractable fraction* heated to 50ºC:
Tested: 1.8
Permissible: 5.5
The maximum dissolvable fraction*
Tested: 3.5
Permissible: 11.3
*expressed as a percentage of the polymer weight
Based on the above test results, the bio fresh plastic film “can be safely used as an item or as a component of item intended to come into contact with food, except for items used for packaging and/or containing food while cooking”.
Sincerely,
Nechama Pas
Prof. A. Miltz
Packaging Engineer
Laboratory Director |
