The extraction of lignocelluloses and silica from rice husk using a single biorefinery process and their characteristics

Nguyễn, Như Gia; Tran, Nhat Thong; Phan, Tan Phat; Nguyen, Anh Thu; Nguyen, My Xuyen T.; Nguyen, Nguyen Ngan; Ko, Young Ho; Nguyen, Dai Hai; Vân, Trần Thị Thanh; Hoang, DongQuy

doi:10.1016/j.jiec.2021.12.032

Cited by 17 publications

(6 citation statements)

References 72 publications

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“…Alcalase treatment led to shifts in peak positions and intensity variations, indicating transitions from β-sheet structures to α-helix or random coil formations, reflecting significant modifications in protein secondary structure (Fathi et al 2021 ; Onsaard et al 2023 ). Consequently, distinctive peaks associated with the C-H out-of-plane bending of aromatic compounds were evident in the 650–900 cm −1 range (Nguyen et al 2022 ). Additionally, C–O stretching, C–C, and C=C stretching vibrations were observed between 950–1100 cm −1 (Nguyen et al 2022 ).…”

Section: Resultsmentioning

confidence: 99%

“…Consequently, distinctive peaks associated with the C-H out-of-plane bending of aromatic compounds were evident in the 650–900 cm −1 range (Nguyen et al 2022 ). Additionally, C–O stretching, C–C, and C=C stretching vibrations were observed between 950–1100 cm −1 (Nguyen et al 2022 ). Moving to the aromatic ring region (1600, 1512, and 1429 cm −1 ), peaks in both samples suggested the presence of aromatic compounds such as phenols and flavonoids (Dwiwibangga et al 2022 ).…”

Section: Resultsmentioning

confidence: 99%

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Impact of Time and Enzyme Concentration on Sangyod Rice Bran Hydrolysate: Phytochemicals, Antioxidants, Amino Acids, and Cytotoxicity

Aenglong,

Woonnoi,

Tanasawet

et al. 2024

Rice

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This study investigated the production of Sangyod rice bran hydrolysate (SYRB) from Sangyod rice, focusing on incubation times (1, 3, and 5 h) and alcalase enzyme concentrations (0, 0.7, and 1% v/v). The results demonstrated a concentration-dependent relationship: higher alcalase concentrations increased hydrolysate yield. Prolonged incubation, especially with alcalase, enhanced substrate breakdown, further increasing hydrolysate production. The degree of hydrolysis, reflecting peptide bond cleavage, depended on both incubation time and enzyme concentration, emphasizing the role of enzyme activity in efficiency. Moreover, color analysis (L*, a*, b*) and color difference (∆E) revealed intricate changes from enzymatic hydrolysis. Proximate composition analysis showed higher protein and lipid content with increased enzyme concentration and longer incubation times, whereas ash content varied with both factors. Hydrolysate powders exhibited higher moisture content than raw rice bran, indicating the impact of the hydrolysis process. The study also explored SYRB's antioxidant properties and cytotoxicity, which were sensitive to incubation time and alcalase concentration. Longer incubation increased DPPH scavenging activity, with the highest efficacy at 3 h. Meanwhile, ABTS scavenging displayed a delicate balance with alcalase concentration. The cytotoxicity study of SYRB revealed that all concentrations of SYRB were non-toxic to C2C12 cells, with cell viability values exceeding 70%.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Impact of Time and Enzyme Concentration on Sangyod Rice Bran Hydrolysate: Phytochemicals, Antioxidants, Amino Acids, and Cytotoxicity

Aenglong,

Woonnoi,

Tanasawet

et al. 2024

Rice

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“…The fabrication of lignin from RH was mentioned in the previous study. , Briefly, the RHs were cleaned with water before being dried at 60 °C to eliminate dirt and other soluble or insoluble impurities. The dry RHs (60 g) were soaked in distilled water for 18 h in a reaction vessel at room temperature.…”

Section: Methodsmentioning

confidence: 99%

Sustainable Lignin-Based Nano Hybrid Biomaterials with High-Performance Antifungal Activity

Vo,

Tran,

Nguyen

et al. 2023

ACS Omega

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Aspergillus flavus (A. flavus) and Aspergillus niger (A. niger) mainly spread through airborne fungal spores. An effective control to impede the dissemination of the spores of Aspergillus in the air affecting the environment and food was carried out. This study focuses on the sustainable rice husk-extracted lignin, nanolignin, lignin/n-lignin capped silver nanoparticles used for fungal growth inhibition. These biomaterials inhibit the growth of fungi by altering the permeability of cell membranes and influencing intracellular biosynthesis. The antifungal indexes for A. flavus and A. niger on day 5 at a concentration of 2000 μg/100 μL are 50.8 and 43.6%, respectively. The results demonstrate that the hybrid biomaterials effectively prevent the growth or generation of fungal spores. The findings of this research hold significant implications for future investigations focused on mitigating the dissemination of Aspergillus during the cultivation of agricultural products or in the process of assuring agricultural product management, such as peanuts and onions.

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“…Calcination with or without chemical pre-treatment (alkaline or acidic, ultrasound) is the most commonly used method for mineral recovery, including silica [212,230], but it is a method that is applied at the end of the biorefinary process. In general, the dry separation consists of calcination that can be used at the end of a biorefinery process, after the separation of lignin, hemicellulose, and cellulose.…”

Section: Dry Separation Processesmentioning

confidence: 99%

Closing the Nutrient Loop—The New Approaches to Recovering Biomass Minerals during the Biorefinery Processes

Constantinescu-Aruxandei

Oancea

2023

IJERPH

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The recovery of plant mineral nutrients from the bio-based value chains is essential for a sustainable, circular bioeconomy, wherein resources are (re)used sustainably. The widest used approach is to recover plant nutrients on the last stage of biomass utilization processes—e.g., from ash, wastewater, or anaerobic digestate. The best approach is to recover mineral nutrients from the initial stages of biomass biorefinery, especially during biomass pre-treatments. Our paper aims to evaluate the nutrient recovery solutions from a trans-sectorial perspective, including biomass processing and the agricultural use of recovered nutrients. Several solutions integrated with the biomass pre-treatment stage, such as leaching/bioleaching, recovery from pre-treatment neoteric solvents, ionic liquids (ILs), and deep eutectic solvents (DESs) or integrated with hydrothermal treatments are discussed. Reducing mineral contents on silicon, phosphorus, and nitrogen biomass before the core biorefinery processes improves processability and yield and reduces corrosion and fouling effects. The recovered minerals are used as bio-based fertilizers or as silica-based plant biostimulants, with economic and environmental benefits.

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The extraction of lignocelluloses and silica from rice husk using a single biorefinery process and their characteristics

Cited by 17 publications

References 72 publications

Impact of Time and Enzyme Concentration on Sangyod Rice Bran Hydrolysate: Phytochemicals, Antioxidants, Amino Acids, and Cytotoxicity

Impact of Time and Enzyme Concentration on Sangyod Rice Bran Hydrolysate: Phytochemicals, Antioxidants, Amino Acids, and Cytotoxicity

Sustainable Lignin-Based Nano Hybrid Biomaterials with High-Performance Antifungal Activity

Closing the Nutrient Loop—The New Approaches to Recovering Biomass Minerals during the Biorefinery Processes

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