将全球变暖潜力星 (GWP*) 值应用于AUSNUT 2011-13年食品成分数据库:创建了GWP*-AUSNUT 2011-13年数据库
Elizabeth Neale1, Troy Balvert1, Hannah Crinnion1
1School of Medicine, Health and Indigenous Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia.
Nutrients
|February 13, 2025
概括
一个新的数据库将全球变暖潜在星 (GWP*) 值与澳大利亚食品联系起来,使得饮食模式的气候足迹计算成为可能. 该工具有助于通过饮食改变确定减少排放的策略.
科学领域:
- 环境科学 环境科学
- 食品科学 食品科学 食品科学
- 气候变化研究 气候变化研究
背景情况:
- 全球变暖潜力星 (GWP*) 量化了来自食品的温室气体排放.
- 现有的GWP*数据涵盖232种澳大利亚食品.
- 在AUSNUT 2011-13数据库中包含5740个食品和饮料项目.
研究的目的:
- 通过将GWP*值应用于全面的AUSNUT 2011-13食品成分数据库,开发GWP*-AUSNUT 2011-13数据库.
- 为了能够计算与澳大利亚饮食数据相关的气候足迹.
- 促进对饮食模式对环境影响的评估.
主要方法:
- 对AUSNUT 2011-13数据库中所有5740项目的GWP*值进行系统审查和应用/计算.
- 优先考虑与现有 GWP* 值直接或近似匹配.
- 计算组合食品的GWP*和基于食品组或调整的其他食品的近似值.
主要成果:
- 在AUSNUT 2011-13数据库中的5502种食品中 (95.85%) 成功分配了GWP*值.
- 大多数GWP*值都需要基于多个成分进行计算.
- 平均GWP*值有很大的差异,从"乳制品和肉类替代品"的0.18 ± 0.12公斤CO2e/kg,到"肉类,家禽和猎物产品和菜"的5.63 ± 7.55公斤CO2e/kg.
结论:
- 澳大利亚GWP*-AUSNUT 2011-13数据库提供了一个分析澳大利亚饮食气候足迹的工具.
- 它可以为减少温室气体排放的饮食改变提供信息.
- 需要进一步的研究来扩大GWP*值,并更新数据库以新的食品成分数据.
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