Web30 nov. 2015 · It’s just the two main sorts of things the product can be. Many people in the UK (my boyfriend and my mum among them), believe that biological washing powders will irritate their skin. But... Web1 A student investigated the effect of two different types of washing powder on stained cloth. One was biological and contained enzymes and detergent. The other was non-biological and contained only detergent. They were provided with: • four pieces of dry cloth that had been stained with the same food • a solution of biological washing ...
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Web17 feb. 2024 · Washing powder type: Biological Fragrance: Lavender and Eucalyptus As you’d expect from Ecover, this product is an eco-friendly choice, being completely … WebThe five classes of enzymes found in laundry detergent include proteases, amylases, lipases, cellulases, and mannanases. They break down proteins (e.g. in blood and egg … croazon banner
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WebBiological washing powder and liquids contain enzymes. These help to break down fat, grease and proteins to get clothes clean. While enzymes are great for getting rid of stains, they can damage wool, silk and other materials. Many people also find that they aggravate eczema and other sensitive skin conditions. Webii) The powder should not be used in boiling water [2 marks] b) Silk is a material made from protein. Explain why the biological washing powder should not be used to wash silk clothes [2 marks] Answer: a) i) - Protease and lipase are enzymes. -They break down stains better than ordinary detergents. - Protease breaks down protein; lipase breaks ... Webbiological washing powder is more effective, at lower temperatures / between 10 °C and 40 °C / 10 °C and 43 °C ; comparative data quote for the difference at a stated … mantelzone