Neutral initial pH enhances the formation of humic acid by inhibiting the growth of Lactobacillus in food waste composting
文献类型： 外文期刊
作者： Xu, Min 1 ; Wei, Yuquan 2 ; Chen, Yunfeng 1 ; Zhou, Haibin 4 ; Ma, Shuangshuang 4 ; Zhan, Yabin 1 ;
作者机构： 1.Hubei Acad Agr Sci, Inst Plant Protect & Soil Fertilizer, Key Lab Fertilizat Agr Wastes, Minist Agr & Rural Affairs, Wuhan 430064, Hubei, Peoples R China
2.China Agr Univ, Coll Resources & Environm Sci, Beijing Key Lab Biodivers & Organ Farming, Beijing 100193, Peoples R China
3.Suzhou China Agr Univ, Organ Recycling Inst, Suzhou 215128, Peoples R China
4.Minist Agr & Rural Affairs, Key Lab Technol & Models Cycl Utilizat Agr Resourc, Beijing 100125, Peoples R China
关键词： Food waste; Lactobacillus; PH adjustment; Humic acid; Microbial network
期刊名称：ENVIRONMENTAL TECHNOLOGY & INNOVATION （ 影响因子：7.1； 五年影响因子：7.1 ）
ISSN： 2352-1864
年卷期： 2025 年 39 卷
页码：
收录情况： SCI
摘要： Composting was the main way to treat food waste and achieve its resource utilization, but the fermentation of food waste could easily produce acid, which affects the microbial community of composting. As of now, the impact of this process on humification was still unclear. This study investigated the effects of initial pH on humic acid formation during food waste (FW) composting, as well as the microbial regulatory mechanisms under pH conditions of 5.0, 6.0 and 7.0. Our study investigated that adjusting the initial pH to 6.6, especially in 7.0, promoted total organic carbon degradation and compost maturation, as indicated by germination index and decreased electrical conductivity. However, higher pH levels also increased total nitrogen loss. Adjusting the pH to 6.0 or 7.0 facilitated the conversion of reducing sugars, amino acids and polyphenols into humic acid and promoted the formation of complex HA components. Our results also indicated that pH regulation inhibited Lactobacillus growth, reshaped bacterial composition, influenced amino acid and polyphenol dynamics, and ultimately enhanced humic acid formation in initial pH of 6.0, especially in initial pH 7.0. From a cost perspective, it was recommended to adjust the initial pH of food waste to 6.0 for composting.
- 相关文献
作者其他论文 更多>>
-
Oviposition-deterrent activity of p-methyl benzaldehyde and 2-hydroxy-5-methoxybenzaldehyde from the extract of Periplocae cortex for the control of Spodoptera frugiperda
作者：Xu, Min;Lu, Chenyan;Wan, Peng;Yin, Haichen;Wang, Ling;Xu, Dong;Xu, Min;Lu, Chenyan;Chen, Lizhen;Liang, Gemei
关键词：botanical pesticides; secondary metabolites;
Spodoptera frugiperda ;Periplocae cortex ; electroantennogram; olfactory response -
Digital mapping of soil organic matter using a particle swarm optimization algorithm and machine learning algorithms
作者：Zhao, Yue;Luo, Zhijun;Zhao, Yue;Zhang, Zhi;Chen, Yunfeng;Hu, Cheng
关键词：Particle swarm optimization algorithm; Machine learning algorithms; Digital soil mapping; Soil organic matter
-
Silica nanoparticles enhanced seed germination and seedling growth of drought-stressed wheat by modulating antioxidant enzymes and mitigating lipid peroxidation
作者：Li, Keke;Li, Yiting;Yin, Xiaohui;Yuan, Yi;Yin, Junliang;Zhu, Yongxing;Chen, Yunfeng
关键词：
-
Spodoptera frugiperda Uses Specific Volatiles to Assess Maize Development for Optimal Offspring Survival
作者：Li, Hanbing;Wan, Peng;Xu, Dong;Cong, Shengbo;Xu, Min;Yin, Haichen;Li, Hanbing;Zhu, Zhihui
关键词：(+)-camphor; growth stage; host recognition mechanism; maize; p-xylene;
Spodoptera frugiperda -
Comparison of phosphorus transformation and microbial functional potential in aerobic and facultative composting of livestock and poultry manure
作者：Ma, Hongfang;Liu, Wenzu;Li, Jun;Wei, Yuquan;Tang, Kaiyan;Zhang, Yifan;Li, Ji;Ma, Hongfang;Li, Jun;Wei, Yuquan;Tang, Kaiyan;Li, Ji;Zhan, Yabin;Wei, Zimin
关键词：Phosphorus fractions; Aerobic composting; Facultative composting; Functional genes; Microbial community
-
Straw Addition Enhances Crop Yield, Soil Aggregation, and Soil Microorganisms in a 14-Year Wheat-Rice Rotation System in Central China
作者：Liu, Bo;Yang, Li;Chen, Yunfeng;Fan, Xianpeng;Zhang, Zhiyi;Duan, Xiaoli;Wu, Maoqian;Xia, Xiange;Xia, Hao;Jiang, Chaoqiang;Jiang, Cuncang;Riaz, Muhammad
关键词：straw application; chemical fertilizer; soil fertility soil aggregate; microbial community
-
Mutation in PgABCC2 confers low-level resistance to Cry1Ac in pink bollworm
作者：Wang, Ling;Xu, Dong;Cong, Shengbo;Wan, Peng;Xu, Min;He, Lu;Liu, Kaiyu;Wei, Wei;Wan, Peng
关键词：Bacillus thuringiensis; pink bollworm; Cry1Ac; ABCC2; resistance mechanism
