Spatially-explicit projection of future microbial protein from lignocellulosic waste
Spatially-explicit projection of future microbial protein from lignocellulosic waste
复制标题
木质纤维素废物中未来微生物蛋白的空间显式预测
DOI:
10.1016/j.crbiot.2022.10.008
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发表时间:
2022
影响因子:
5.6
通讯作者:
Chen L
中科院分区:
文献类型:
--
作者:
Chen L
Plant- and animal-sourced proteins are carbon-intensive and vulnerable to extreme events. This combined with increasing protein demands highlight the challenge on providing sustainable protein derived from alternative sources. Microbial protein derived from microorganisms offers potential solutions. Notably, some microbial strains e.g.Fusarium venenatumcould efficiently convert carbon sources from food-safe agricultural lignocellulosic ‘waste’ (e.g. food crop residues such as wheat straw) to microbial protein.Our study is underpinned by data-driven approach and presents a modelling framework and analyses to predict spatially-explicit yields of staple crop lignocellulosic residues in response to spatial variation and climate change and highlight their potential for microbial protein production. Five food crops residues have been modelled including barley, wheat, maize, sorghum and rice straws worldwide (around 227 countries) to show future potential for microbial protein production. This study predicts crop residue yields using the data set collection and data pre-processing of crop residues and other environmental factors like temperature. Then, global autocorrelation is used to identify crop residues’ worldwide distribution patterns, and local autocorrelation is used to identify hot and cold spots. Feature selection and four models including ordinary least squares (OLS), multilayer perceptron (MLP), lasso regression and spatial error model are applied in prediction. With the updated independent factor ‘future temperature’ obtained from the autoregressive integrated moving average (ARIMA) model, the selected model is used to predict crop residues in 2030, 2040 and visualizations are created to show the projection outcomes. Our quantitative projection suggests that the future lignocellulosic microbial protein supply in different scenarios would sufficiently satisfy the global protein demands considering the average adult daily protein recommendation (50 g protein per capita 70 kg per day).
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