china carmoisine titanium dioxide

Titanium dioxide (TiO2) is commonly applied to enhance the white colour and brightness of food products. TiO2 is also used as white pigment in other products such as toothpaste. A small fraction of the pigment is known to be present as nanoparticles (NPs). Recent studies with TiO2 NPs indicate that these particles can have toxic effects. In this paper, we aimed to estimate the oral intake of TiO2 and its NPs from food, food supplements and toothpaste in the Dutch population aged 2 to over 70 years by combining data on food consumption and supplement intake with concentrations of Ti and TiO2 NPs in food products and supplements. For children aged 2-6 years, additional intake via ingestion of toothpaste was estimated. The mean long-term intake to TiO2 ranges from 0.06 mg/kg bw/day in elderly (70+), 0.17 mg/kg bw/day for 7-69-year-old people, to 0.67 mg/kg bw/day in children (2-6 year old). The estimated mean intake of TiO2 NPs ranges from 0.19 μg/kg bw/day in elderly, 0.55 μg/kg bw/day for 7-69-year-old people, to 2.16 μg/kg bw/day in young children. Ninety-fifth percentile (P95) values are 0.74, 1.61 and 4.16 μg/kg bw/day, respectively. The products contributing most to the TiO2 intake are toothpaste (in young children only), candy, coffee creamer, fine bakery wares and sauces. In a separate publication, the results are used to evaluate whether the presence of TiO2 NPs in these products can pose a human health risk.

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  • Door track rollers are an essential component of any sliding door system. These small wheels are responsible for helping the door glide smoothly along the track, making it easy to open and close the door with minimal effort.
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  • Step-by-Step Guide to Adjusting Rollers


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  • Temper
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  • 6061&6063-T5, T6
  • The top-hung opening window provides hinges on both the left and right sides of the frame, with the window handle at the bottom and opening outwards. This window suits more modern styles of aluminium windows as well as window designs with larger glass panels and fewer dividing mullions and transoms. 

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  • >0.7mm
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  • One of the key advantages of wheel sliding door rollers is their low maintenance requirement. Unlike traditional hinged doors, they do not put stress on hinges or require regular oiling. However, periodic cleaning and inspection are recommended to ensure optimal performance and longevity However, periodic cleaning and inspection are recommended to ensure optimal performance and longevity However, periodic cleaning and inspection are recommended to ensure optimal performance and longevity However, periodic cleaning and inspection are recommended to ensure optimal performance and longevitywheel sliding door roller. In case of wear and tear, replacement is straightforward, thanks to the modular design of the roller system.