polymerguru

Toxicologists have developed a new  biodegradable packaging  that helps cosmetics firms meet customers’ demand for environmentally friendly packaging at Heriot-Watt University. The new packaging solves a conundrum for cosmetics firms that currently sell organic, ‘clean’ products in plastic containers made from fossil fuel products that cannot degrade and will forever remain in landfill. PLA-based New Packaging The new packaging is made from  polylactic acid (PLA) , which can be obtained from renewable resources like corn starch or sugar cane and is compostable and biodegradable. Polylactic acid (PLA) was selected as the plastic for the new packaging, but in order to improve the performance of this plastic, and to increase the shelf life of the cosmetic product, two different materials were incorporated.  Nano clays and rosemary extract were added as the nano clays improve the barrier properties of the product and rosemary extract acts as an antioxidant to ...

European Food Safety Authority (EFSA) has issued an update of the risk assessment of the phthalates DBP, BBP, DEHP, DINP and DIDP for use in food contact materials. EFSA reviewed the safe levels for the five phthalates in plastic FCM and evaluated whether current dietary exposure to them posed a concern for public health. Setting a New Safe Level EFSA experts have now set a new safe level – a group Tolerable Daily Intake (TDI) – for four of the five phthalates (DBP, BBP, DEHP and DINP) of 50 micrograms per kilogram of body weight (µg/kg bw) per day based on their effects on the reproductive system. The TDI is an estimate of the amount of a substance that people can ingest daily during their whole life without any appreciable risk to health. The key effect on which this group-TDI is based is a reduction in testosterone in fetuses. The fifth phthalate in the assessment, DIDP, does not affect testosterone levels in fetuses, therefore we set a separate TDI of 150 µg/kg bw per ...