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Suspension Fertilizers Based on Waste Organic Matter from Peanut Oil Extraction By-Products

文献类型: 外文期刊

作者: Xiang, Sainan 1 ; Li, Baoshen 2 ; Lyu, Yang 1 ;

作者机构: 1.China Agr Univ, Natl Acad Agr Green Dev, Coll Resources & Environm Sci, State Key Lab Nutrient Use & Management, Beijing 100193, Peoples R China

2.Guangxi Acad Agr Sci Agr Sci, Biotechnol Res Inst, Nanning 530007, Peoples R China

关键词: suspension fertilizer; peanut bran; protein gelation; waste valorization

期刊名称:AGRONOMY-BASEL ( 影响因子:3.4; 五年影响因子:3.8 )

ISSN:

年卷期: 2025 年 15 卷 8 期

页码:

收录情况: SCI

摘要: The use of chemical fertilizers has significantly increased crop yields but has also led to soil problems such as nutrient imbalance and salinization. In response, organic fertilizers have emerged as a crucial component for sustainable agricultural development. This study was designed to develop an easily applicable organic suspension fertilizer using peanut bran, the primary by-product of peanut oil extraction, as the main raw material. Fourier-transform infrared (FTIR) analysis revealed that 80 degrees C is the optimal heating temperature for forming a stable peanut-bran suspension. A comprehensive experimental investigation was conducted to evaluate the effects of different peanut bran addition levels, stabilizers, emulsifiers, and suspending agents on the stability of suspension fertilizers. The results identified the optimal suspension fertilizer formulation as comprising 20% peanut bran, 0.5% sodium bentonite, 0.1% monoglyceride, 0.2% sucrose ester, 0.02% carrageenan, and 0.3% xanthan gum. This formulation ensures good stability and fluidity of the suspension fertilizer while maintaining a low cost of 0.134 USDkg-1. The findings provide a scalable technological framework for valorizing agro-industrial waste into high-performance organic fertilizers.

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