学校餐的餐盘上有什么:专注于动物性和植物性蛋白质食品。

IF 2 4区 医学 Q3 NUTRITION & DIETETICS
Nutrition Research and Practice Pub Date : 2023-10-01 Epub Date: 2023-08-25 DOI:10.4162/nrp.2023.17.5.1028
So-Young Kim, Meeyoung Kim
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引用次数: 0

摘要

背景/目的:本研究旨在分析韩国学校餐作为一种可持续工具的潜力,通过关注动物性和植物性蛋白质食品来减少碳排放。材料/方法:采用分层比例分配法,在全国11082所学校中选择536所,其中幼儿园21所,小学287所,中学120所,高中108所。共收集了连续5天(2021年6月21日至25日)提供的2680份餐食。我们分析了每顿蛋白质食品(动物性与植物性)的平均供应量,然后通过应用转换系数计算了每顿碳排放当量的估计平均量。采用t检验和方差分析进行统计分析(α=0.05)。结果:动物蛋白食品每餐的平均食用量为12.5g,约为植物蛋白食品3.8g的3倍(P<0.001);肉类组的平均摄入量最高,为17.0g,其次是鸡蛋组(9.6g)、鱼类组(7.6g)和豆类和坚果组(3.8g)(P<0.05)。具体而言,猪肉(25.1g)排名第一,其次是家禽(19.6g)和加工肉制品(18.0g)。动物蛋白食品每餐的碳排放当量估计平均为80.1克二氧化碳当量,约为植物蛋白食品(2.6克二氧化碳当量)的31倍(P<0.001);肉类组的平均二氧化碳含量最高,为120.3克,其次是鱼类组(44.5克二氧化碳)、鸡蛋组(25.9克二氧化碳)和豆类和坚果组(2.6克二氧化碳)(P<0.05)。具体而言,加工肉制品(270.8克二氧化碳)排名第一,其次是猪肉(91.7克二氧化碳),以及加工鱼制品(86.6克二氧化碳)。结论:研究结果表明,采用植物替代品的学校膳食可能是改善碳足迹的可持续工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

What is on plates for school meals: focusing on animal- vs. plant-based protein foods.

What is on plates for school meals: focusing on animal- vs. plant-based protein foods.

What is on plates for school meals: focusing on animal- vs. plant-based protein foods.

What is on plates for school meals: focusing on animal- vs. plant-based protein foods.

Background/objectives: This study aimed to analyze the potential of school meals in South Korea as a sustainable tool to reduce carbon emissions by focusing on animal- vs. plant-based protein foods.

Materials/methods: By using a stratified proportional allocation method, 536 out of the 11,082 schools nationwide were selected including 21 kindergartens, 287 elementary-, 120 middle- and 108 high schools. A total of 2,680 meals served for 5 consecutive days (June 21-25, 2021) were collected. We analyzed the average serving amounts of protein foods (animal- vs. plant-based) per meal and then, calculated the estimated average amounts of carbon emission equivalents per meal by applying the conversion coefficients. The t-test and analysis of variance were used for statistical analyses (α = 0.05).

Results: The average serving amount of animal-based protein foods per meal was 12.5 g, which was approximately 3 times higher than that of plant-based ones (3.8 g) (P < 0.001); the Meat-group had the highest average amount of 17.0 g, followed by Egg-group (9.6 g), Fish-group (7.6 g), and Beans-and-Nuts-group (3.8 g) (P < 0.05). Specifically, pork (25.1 g) was ranked first, followed by poultry (19.6 g), processed meat products (18.0 g). The estimated average amount of carbon emission equivalents of animal-based protein foods per meal was 80.1 g CO2e, which was approximately 31 times higher than that of plant-based ones (2.6 g CO2e) (P < 0.001); the Meat-group had the highest average amount of 120.3 g CO2e, followed by Fish-group (44.5 g CO2e), Egg-group (25.9 g CO2e), and Beans-and-Nuts-group (2.6 g CO2e) (P < 0.05). Specifically, processed meat products (270.8 g CO2e) were ranked first, followed by pork (91.7 g CO2e), and processed fish products (86.6 g CO2e).

Conclusions: The results implied that school meals with plant-based alternatives could be a sustainable tool to improve carbon footprint.

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来源期刊
Nutrition Research and Practice
Nutrition Research and Practice NUTRITION & DIETETICS-
CiteScore
3.50
自引率
4.20%
发文量
62
审稿时长
6-12 weeks
期刊介绍: Nutrition Research and Practice (NRP) is an official journal, jointly published by the Korean Nutrition Society and the Korean Society of Community Nutrition since 2007. The journal had been published quarterly at the initial stage and has been published bimonthly since 2010. NRP aims to stimulate research and practice across diverse areas of human nutrition. The Journal publishes peer-reviewed original manuscripts on nutrition biochemistry and metabolism, community nutrition, nutrition and disease management, nutritional epidemiology, nutrition education, foodservice management in the following categories: Original Research Articles, Notes, Communications, and Reviews. Reviews will be received by the invitation of the editors only. Statements made and opinions expressed in the manuscripts published in this Journal represent the views of authors and do not necessarily reflect the opinion of the Societies.
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