STEM与日常科技·英语30篇（5）
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Bio-Derived Plastics That Compost in Your Backyard
源自生物的塑料，可在后院堆肥
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Most ‘bioplastics’ break down only in industrial facilities at 60°C—leaving backyard compost bins unchanged.大多数‘生物塑料’仅能在60°C的工业设施中降解，家庭堆肥箱无法分解。
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New polymers made from fermented corn starch and plant oils now decompose fully at ambient temperatures.新型聚合物由发酵玉米淀粉和植物油制成，可在常温下完全分解。
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Enzymes in soil microbes recognize their chemical structure and dismantle them into water, CO₂, and humus.土壤微生物中的酶能识别其化学结构，并将其分解为水、二氧化碳和腐殖质。
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Certified home-compostable bags and food containers vanish in 45–90 days under typical garden conditions.经认证的家庭可堆肥袋和食品容器，在典型花园条件下45至90天内即可消失。
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They leave no microplastics, toxins, or residue—unlike conventional plastics that persist for centuries.它们不残留微塑料、毒素或任何残渣，而传统塑料可存留数百年。
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Farmers use these films to mulch crops, then till them directly into soil as organic fertilizer.农民用这类地膜覆盖作物，之后直接翻入土壤作为有机肥料。
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Retailers report 30% fewer customer complaints after switching checkout bags to this type.零售商将收银袋换成此类产品后，顾客投诉减少30%。
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Production uses 40% less fossil fuel than petroleum-based plastics—and captures CO₂ during plant growth.其生产比石油基塑料少消耗40%化石燃料，且植物生长过程吸收二氧化碳。
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Standards like TÜV Austria OK Compost HOME ensure authenticity, preventing greenwashing claims.TÜV奥地利OK Compost HOME等标准确保真实性，防止‘漂绿’宣传。
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This is circular design in action: grown from plants, used once, returned safely to earth.这是循环设计的实践：源自植物，单次使用，安全回归大地。