Bio-straw resource recycling systems: Agricultural productivity and green development

Li, Dongxue; Wang, Yiliu; Lu, Dianjun; Chen, Xiaoqin; Cui, Zhenling; Chen, Xinping; Lu, Jianwei; Nie, Jun; Wang, Huoyan; Zhang, Jianmin

doi:10.1016/j.resconrec.2022.106844

Cited by 13 publications

(5 citation statements)

References 49 publications

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“…Recognized as a vital renewable energy source, straw has garnered considerable attention both from agricultural perspectives and in terms of environmental emissions 3 – 6 . Recycling straw is perceived as a proficient resource management strategy in agriculture, boasting potential benefits such as enhanced soil quality and increased crop yield 7 , 8 . Conversely, the practice of open straw burning poses a grave threat by emitting particulates and gaseous pollutants that can create haze and pollute the air, a pressing issue particularly in developing nations 9 – 11 .…”

Section: Background and Summarymentioning

confidence: 99%

Up-bottom assessments of nutrient supply and gaseous pollutant from Chinese wheat straw field management

Li,

Gu,

Chen

et al. 2024

Sci Data

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To achieve resource efficiency, and carbon neutrality, it is vital to evaluate nutrient supply and gaseous pollutant emissions associated with field management of bio-straw resources. Previous straw yield estimates have typically relied on a constant grain-to-straw yield ratio without accounting for grain yield levels in a given region. Addressing this high-resolution data gap, our study introduces a novel empirical model for quantifying grain-to-straw yield, which has been used to gauge wheat straw field management practices at the city level during 2011–2015. Utilizing both statistical review and GIS-based methods, average nitrogen (N), phosphorus (P), and potassium (K) supplies from straw field management stood at 1510, 1229, and 61700 tons, respectively. Average emissions of PM2.5, SO2, NOx, NH3, CH4, and CO2 due to straw burning were 367, 41, 160, 18, 165, and 70,644 tons, respectively. We also reported uncertainty from Monte Carlo model as the 5th-95th percentiles of estimated nutrient supply and gaseous pollutant. These insights will provide foundational support for the sustainable and environmentally friendly management of wheat straw in China.

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Section: Background and Summarymentioning

confidence: 99%

Up-bottom assessments of nutrient supply and gaseous pollutant from Chinese wheat straw field management

Li,

Gu,

Chen

et al. 2024

Sci Data

Self Cite

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“…As a renewable biomass resource, Straw holds significant quantities and serves various purposes [ 1 ]. The issue of straw utilization has garnered public attention in recent years, as its proper usage is closely linked to environmental factors such as air quality, global nitrogen and carbon cycles, agricultural productivity, and sustainable development [ 2 ]. The comprehensive utilization of straw encompasses several aspects, including fertilizer utilization [ 3 , 4 ], fuel utilization [ 5 , 6 ], substrate utilization [ 7 , 8 ], feed utilization [ 9 , 10 ], and raw material utilization [ [11] , [12] , [13] ].…”

Section: Introductionmentioning

confidence: 99%

Understanding the drying mechanism of straw substrate culture block: Physicochemical properties, pore structure, and drying optimization

Cheng,

Liu,

Sun

et al. 2024

Heliyon

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“…Most of it is either left on the ground or burned on site, which has several ecological, health, and environmental consequences [ 1 , 2 ]. Moreover, straw burning culminates in the accumulation of atmospheric contaminants, such as carbon monoxide, carbon dioxide, volatile organic compounds, oxides of sulphur and, polycyclic aromatic hydrocarbons which deteriorates the air quality and crop yield further [ 3 ]. Hence, there is an urgent need to develop large-scale conversion technologies to valorize RS for the development of commercially relevant value-added products such as xylitol.…”

Section: Introductionmentioning

confidence: 99%

Bioprocess optimization for enhanced xylitol synthesis by new isolate Meyerozyma caribbica CP02 using rice straw

Singh,

Arya,

Krishania

2024

Biotechnol Biofuels

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The present work models the fermentation process parameters of the newly isolated, Meyerozyma caribbica CP02 for enhanced xylitol production and its fermentability study on rice straw hydrolysate. The study examined the impact of each of the process variables by one variable at a time optimization followed by statistical validation. Temperature of 32 °C, pH of 3.5, agitation of 200 rpm, 1.5% (v/v) inoculum, 80 gL−1 initial xylose was optimized. Subsequently, a sequential two-stage agitation approach was adopted for fermentation. At these optimized conditions, xylitol yield of 0.77 gg−1 and 0.64 gg−1 was achieved using media containing commercial and rice straw derived xylose, respectively. For scale up, in 3L batch bioreactor, the highest xylitol yield (0.63 gg−1) was attained at 72 h with rice straw hydrolysate media containing initial xylose (59.48 ± 0.82 gL−1) along with inhibitors (1.55 ± 0.10 gL−1 aliphatic acids, 0.0.048 ± 0.11 gL−1 furans, 0.64 ± 0.23 gL−1 total phenols). The results imply that even under circumstances characterized by an acidic pH and elevated initial xylose level, M. caribbica CP02, as an isolate, displays robustness and shows favorable fermentability of rice straw hydrolysate. Therefore, isolate CP02 has potential to be used in bio-refineries for high yield xylitol production with minimal hydrolysate processing requirements. Graphical Abstract

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Bio-straw resource recycling systems: Agricultural productivity and green development

Cited by 13 publications

References 49 publications

Up-bottom assessments of nutrient supply and gaseous pollutant from Chinese wheat straw field management

Up-bottom assessments of nutrient supply and gaseous pollutant from Chinese wheat straw field management

Understanding the drying mechanism of straw substrate culture block: Physicochemical properties, pore structure, and drying optimization

Bioprocess optimization for enhanced xylitol synthesis by new isolate Meyerozyma caribbica CP02 using rice straw

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