从食物废物中生产糖:过程设计和优化,技术经济分析和生命周期评估
Qing Jin1, Zhichao Wang2, Yilin Li3
1Department of Food Science and Technology, Virginia Polytechnic Institute and State University, 1230 Washington St. SW, Blacksburg, VA 24061, USA; School of Food and Agriculture, University of Maine, 5763 Rogers Hall, Room 205, Orono, ME 04469, USA.
Bioresource technology
|May 19, 2025
概括
这项研究优化了一种级联过程,将食物废弃物转化为有价值的糖,为经济和环境带来好处. 从食物废物中回收糖比传统方法便宜,更环保,减少温室气体排放.
科学领域:
- 生物技术和生物经济
- 可持续的资源管理可持续的资源管理
- 食品科学 食品科学 食品科学
背景情况:
- 食物浪费是一个重大的环境挑战,也是一个尚未开发的资源.
- 传统的糖生产依赖于农业原料,面临着土地和水资源的限制.
- 开发替代的,可持续的糖生产来源对于循环生物经济至关重要.
研究的目的:
- 开发和优化一个级联过程,从食物废物中提取各种糖.
- 评估基于食品废弃物的糖生产的经济可行性和环境影响.
- 建立一个可持续的价值化食物浪费的途径.
主要方法:
- 从食物废物中提取糖的级联过程的优化.
- 可溶性糖,粉水解糖和结构性碳水化合物水解糖的量化.
- 经济分析 (最低销售价) 和生命周期评估 (LCA) 用于环境影响评估.
主要成果:
- 优化过程回收了 42.9 公斤的可溶糖 (81.4%的效率), 55.3 公斤的粉衍生糖 (88.5%的效率) 和 18.9 公斤的结构碳水化合物糖 (91.5%的效率) 的每公湿食品废物.
- 最具成本效益的方案 (可溶性糖和粉糖) 的最低售价为358美元/万,低于传统糖价.
- 生命周期评估表明,与传统糖生产相比,温室气体排放显著减少 (-68公斤CO2/MT).
结论:
- 食品废弃物可以通过优化的级联过程有效地转化为各种类型的糖.
- 从食物垃圾中生产糖是经济上具有竞争力和对环境有益的,减少温室气体排放.
- 这种方法为可持续的生物经济实践和食品废弃物利用提供了可行的战略.
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