GHG comparison of frozen milk concentrate and milk powder

IF 2.7 3区农林科学 Q3 ENGINEERING, CHEMICAL

Journal of Food Process Engineering Pub Date : 2024-08-12 DOI:10.1111/jfpe.14710

Lindsay J. Robertson, J. P. Morel, R. H. Archer, S. J. McLaren

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引用次数: 0

Abstract

Increased awareness by industry of greenhouse gas (GHG) emissions is forcing companies to examine electrical technologies as alternatives to fossil fuel-driven thermal ones. Spray drying of milk is recognized as a high-energy process and is of particular importance to New Zealand. It requires inlet air temperatures higher than most existing electrically-driven heat-pumps can reliably achieve. Already some companies internationally are considering freezing and shipping milk concentrates rather than drying which begs the question as to whether the GHG emissions of frozen concentrate outweigh the GHG avoided by not drying. This research note assesses the relative GHG emissions and indicates a GHG advantage for frozen concentrate shipping.

Practical applications

Increased awareness of the significance of greenhouse gas (GHG) emissions is forcing companies to examine alternatives to fossil fuel-driven thermal technologies. Spray drying of milk is recognized as a high-energy process and is of particular importance to New Zealand. It requires inlet air temperatures higher than most existing electrically-driven heat-pumps can achieve and so commonly requires fossil-fuel use. Already some companies internationally are considering freezing and shipping milk concentrates rather than shipping dried milk. This research note assesses the relative GHG emissions of conventional (fossil-fuelled) processes, and a novel process involving frozen concentrate. The evaluation shows that significant greenhouse gas reduction is possible by shipping frozen concentrate.

查看原文本刊更多论文

冷冻浓缩奶和奶粉的温室气体比较

工业界对温室气体（GHG）排放的认识不断提高，迫使企业研究电气技术，以替代化石燃料驱动的热能技术。牛奶喷雾干燥是公认的高能耗工艺，对新西兰尤为重要。它所需的进风温度高于大多数现有电力驱动热泵所能可靠达到的温度。国际上已经有一些公司在考虑冷冻和运输浓缩牛奶，而不是进行干燥，这就引出了一个问题：冷冻浓缩牛奶的温室气体排放量是否超过不进行干燥所避免的温室气体排放量。本研究报告评估了相对的温室气体排放量，并指出冷冻浓缩奶运输的温室气体优势。实际应用人们对温室气体（GHG）排放重要性的认识不断提高，迫使企业研究化石燃料热能技术的替代品。牛奶喷雾干燥是公认的高能耗工艺，对新西兰尤为重要。它所需的进风温度高于大多数现有电力驱动热泵所能达到的温度，因此通常需要使用化石燃料。国际上已经有一些公司在考虑冷冻和运输浓缩牛奶，而不是运输奶粉。本研究报告评估了传统工艺（化石燃料）和涉及冷冻浓缩物的新型工艺的相对温室气体排放量。评估结果表明，运输冷冻浓缩物可显著减少温室气体排放。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Food Process Engineering 工程技术-工程：化工

CiteScore

5.70

自引率

10.00%

发文量

259

审稿时长

2 months

期刊介绍： This international research journal focuses on the engineering aspects of post-production handling, storage, processing, packaging, and distribution of food. Read by researchers, food and chemical engineers, and industry experts, this is the only international journal specifically devoted to the engineering aspects of food processing. Co-Editors M. Elena Castell-Perez and Rosana Moreira, both of Texas A&M University, welcome papers covering the best original research on applications of engineering principles and concepts to food and food processes.