Rice wastes for green production and sustainable nanomaterials: An overview

AboDalam, Hussien; Devra, Vijay; Ahmed, Farah K.; Li, Bin; Abd‐Elsalam, Kamel A.

doi:10.1016/b978-0-12-823575-1.00009-3

Cited by 10 publications

(4 citation statements)

References 84 publications

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“…Although the elemental composition of the biomixtures was not determined, the differences among their C/N ratios are exclusively related to the lignocellulosic substrate (as the proportion and origin of soil and compost is the same). Given that the C/N for CF (~83) is much higher than those for RH (~23) and CH (~30) ( Shemekite et al, 2014 ; AboDalam et al, 2022 ), the CF-biomixture has a higher C/N value. The biomixtures with high C/N ratios are known to favor the activity of white rot fungi and their enzymatic machinery, which may enhance the oxidation of organic micropollutants ( Yang et al, 2013 ); this observation might at least partially explain the best pesticide removal observed in this matrix.…”

Section: Resultsmentioning

confidence: 99%

Biological treatment of pesticide-containing wastewater from coffee crops: selection and optimization of a biomixture and biobed design

Oviedo-Matamoros,

Pérez-Villanueva,

Masís-Mora

et al. 2024

Front. Microbiol.

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The biopurification systems (BPS) or biobeds are employed for the treatment of pesticide-containing wastewater of agricultural origin. The use of these devices for pesticide removal requires the proper optimization of the composition of biomixtures (BPS active matrix) according to the target pesticides applied on a specific crop and the available materials used in their elaboration. This work aims to design a biomixture for the simultaneous treatment of several pesticides applied in coffee crops, according to local practices in Costa Rica. Three biomixtures containing either coffee husk, coconut fiber or rice husk (as the lignocellulosic substrate) were applied for the removal of 12 pesticides. The profiles of pesticide elimination and the mineralization of radiolabeled chlorpyrifos (14C-chlorpyrifos) revealed that the best performance was achieved with the coconut fiber biomixture, even though similar detoxification patterns were determined in every biomixture (according to immobilization in Daphnia magna and germination tests in Lactuca sativa). The optimization of this biomixture’s composition by means of a central composite design permitted the definition of two optimal compositions (compost:soil:coconut fiber, % v/v) that maximized pesticide removal: i. 29:7.3:63.7 and ii. 11:7.3:81.7. The validation of these optimized compositions also included the use of an alternative soil from another coffee farm and resulted in overall DT50 values of 7.8–9.0 d for the pesticide mixture. Considering the removal kinetics in the optimized biomixture, a 1 m3 BPS prototype was dimensioned to be eventually used in local coffee farms. This work provides relevant information for the design and implementation of BPS at on-farm conditions for the treatment of pesticide-containing wastewater of a major crop.

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Section: Resultsmentioning

confidence: 99%

Biological treatment of pesticide-containing wastewater from coffee crops: selection and optimization of a biomixture and biobed design

Oviedo-Matamoros,

Pérez-Villanueva,

Masís-Mora

et al. 2024

Front. Microbiol.

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“…Cerium oxide NPs have been reported to enhance the photosynthetic efficiency of plants by reducing the accumulation of reactive oxygen species under stress conditions [ 99 , 100 ]. Moreover, AboDalam et al have described that the pre-germinated wheat seeds, soaked in a solution containing multiwall carbon nanotubes (MWCNTs), have accelerated root development and increased vegetative biomass [ 101 ]. The treatment of soybean seeds with NPs of TiO 2 and SiO 2 increased nitrate reductase activity, which stimulates seed germination; however, combined application of both NMs was more beneficial [ 102 ].…”

Section: Mechanism Underlying Nano-enabled Sustainable Crop Productionmentioning

confidence: 99%

Nanobiotechnology to advance stress resilience in plants: Current opportunities and challenges

Ijaz

Khan

Noman

et al. 2023

Materials Today Bio

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“…From the XRD spectra, it is evident that the crystallinity changed in the substrate after pretreatment. One of the most significant factors that affect the hydrolysis of enzymes in lignocellulosic biomass is the crystallinity of the RS (AboDalam et al, 2022). After the pretreatment conditions were applied, the crystallite size increased, that is, it was 3.07 nm, whereas the crystallite size was only 2.71 nm in the native RS.…”

Section: Xrd Analysis Phase Identificationmentioning

confidence: 99%

“…China alone produces 400 million tonnes of straw that could, in fact, be used as a replacement for 200 million tonnes of coal (Hassan et al, 2021). A recent study unveiled annual RS production of 370-520 million tonnes worldwide, 330-470 million tonnes in Asia, and 100-140 million tonnes in Southeast Asia (Ren et al, 2019;Van Hung et al, 2020;AboDalam et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Bioethanol production from alkali-pretreated rice straw: effects on fermentation yield, structural characterization, and ethanol analysis

Ningthoujam,

Jangid,

Yadav

et al. 2023

Front. Bioeng. Biotechnol.

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Current ethanol production technology has a dire need for efficient conversion of lignocellulosic biomass to fermentable sugars. The conversion requires pretreatment of the biomass, one of the most expensive steps, and thus it is quite necessary to identify the most cost-effective and high-efficiency conversion method. In this study, rice straw (RS) biomass was pretreated using 4% NaOH alkali, soaked for 4 h, and autoclaved for 30 min. The structural and morphological changes were examined using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM) analysis in both native and alkali-treated RS. The FTIR analysis revealed that native RS contains a considerable amount of lignin that was removed after the pretreatment process. The XRD pattern of the RS revealed an increasing crystallite size of the pretreated lignocellulosic biomass. The study of SEM clearly showed the distorted structure and surface porosity after the pretreatment process. Enzymatic hydrolysis efficiency was checked by comparing the commercial enzymes and microbial hydrolysis extracted from a fungal isolate. The best-reducing sugar yield obtained was 0.62 g/L, achieved at optimized conditions from the commercial enzymes. Fermentation efficiency was checked using the yeast isolate Saccharomyces cerevisiae in both the native and pretreated substrate, and the highest ethanol concentration (21.45%) was achieved using 20% w/v biomass loading, enzyme loading (2:1:1), and fermentation for a week at 30°C and pH 4.5. This concentration was higher than that of the untreated RS (3.67%). The ethanol thus produced was further checked for analysis by the 1H and 13C nuclear magnetic resonance (NMR) methods.

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Rice wastes for green production and sustainable nanomaterials: An overview

Cited by 10 publications

References 84 publications

Biological treatment of pesticide-containing wastewater from coffee crops: selection and optimization of a biomixture and biobed design

Biological treatment of pesticide-containing wastewater from coffee crops: selection and optimization of a biomixture and biobed design

Nanobiotechnology to advance stress resilience in plants: Current opportunities and challenges

Bioethanol production from alkali-pretreated rice straw: effects on fermentation yield, structural characterization, and ethanol analysis

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