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Biodegradable polymers have a long history, and since many are natural products, the precise timeline of their discovery and use cannot be accurately traced. One of the first medicinal uses of a biodegradable polymer was the catgut suture , which dates back to at least 100 AD. [ 4 ]
Biodegradable additives can convert the plastic degradation process to one of biodegradation. Instead of being degraded simply by environmental factors, such as sunlight (photo-oxidation) or heat (thermal degradation), biodegradable additives allow polymers to be degraded by microorganisms and bacteria through direct or indirect attack.
By definition, biodegradable materials are formed or organic compounds which can thus be broken down by living organisms, such as bacteria, fungi, or water molds, and reabsorbed by the natural environment. [13] Whether a material is biodegradable is determined by its chemical structure, not the origin of the material from which it is made. [14]
Use of renewable, biodegradable and compostable materials – when appropriate and do not cause contamination of the recycling stream [23] [24] [25] Avoid the use of materials toxic to humans or the environment; Effects on atmosphere/climate – ozone layer, greenhouse gases (carbon dioxide and methane), volatile organic compounds, etc.
Parchment paper is considered to be a “brown” or carbon-rich ingredient and it should be layered with plenty of “green” or nitrogen-rich materials, like kitchen scraps. For faster ...
All materials are inherently biodegradable, whether it takes a few weeks or a million years to break down into organic matter and mineralize. [48] Therefore, products that are classified as “biodegradable” but whose time and environmental constraints are not explicitly stated are misinforming consumers and lack transparency. [44]
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