Different treatments of pearl millet for cellulose recovery: effects on lignocellulosic composition

Dresch, Aline Perin; Cavali, Matheus; Santos, David Fernando dos; Fogolari, Odinei; Tironi, Siumar Pedro; Pinto, Vânia Zanella; Mibielli, Guilherme Martinez; Bender, João Paulo

doi:10.21203/rs.3.rs-1689771/v1

Cited by 2 publications

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“…They have an abundance of lignocellulosic biomass that can further be used to isolate cellulose, hemicellulose and lignin. Among all millet varieties, pearl, foxtail and barnyard millet have a high amount of crude fiber percentage (Verma et al, 2015;Dresch et al, 2022). The crude fiber analysis conducted showed in Figure 4 there was significantly higher amount in the proso variety (p < 0.05) and there was no significant decrease in the spray-dried powder (p > 0.05).…”

Section: Electrolyte Composition Enzyme Volumementioning

confidence: 95%

Development of millet-acid whey formulations with nutritional, microbiological, and sensory characterization

Malik,

Mustapha,

Krishnaswamy

2023

Front. Sustain. Food Syst.

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IntroductionDisposal of the acid whey waste stream is one of the major challenges faced by the Greek yogurt industry. However, based on its physicochemical characteristics and composition analysis, it has huge potential in the health industry. Likewise, millets are highly nutritive and health benefitting ancient grains. Combining acid whey and millet matrix can help in solving the problem of both food losses and food security. Hence, the objective of the study is to analyze the enhancement or degradation of the nutrition profile when acid whey is combined with millet matrix using spray-drying technology.MethodThe methodology of the study includes composition analysis and functional characterization based on antioxidant properties, microbial analysis, and sensory evaluation.Results and discussionThe results showed that there was enhancement of functional properties of the millet-acid whey formulation matrix specifically in terms of polyphenolic compounds, lactose content, and mineral content. Overall, the study aims to provide an alternative method for the utilization and consumption of acid whey that is currently being mishandled and considered as waste by the Greek yogurt manufacturing companies.

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Section: Electrolyte Composition Enzyme Volumementioning

confidence: 95%

Development of millet-acid whey formulations with nutritional, microbiological, and sensory characterization

Malik,

Mustapha,

Krishnaswamy

2023

Front. Sustain. Food Syst.

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Isolation, characterization and response surface method optimization of cellulose from hybridized agricultural wastes

Rasheed,

Adeleke,

Nzerem

et al. 2024

Sci Rep

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This study explores the utilization of eight readily available agricultural waste varieties in Nigeria—sugarcane bagasse, corn husk, corn cob, wheat husk, melina, acacia, mahogany, and ironwood sawdust—as potential sources of cellulose. Gravimetric analysis was employed to assess the cellulose content of these wastes, following which two selected wastes were combined based on their cellulose content and abundance to serve as the raw material for the extraction process. Response Surface Methodology, including Box-Behnken design, was applied to enhance control over variables, establish an optimal starting point, and determine the most favorable reaction conditions. The cellulose extracted under various conditions was comprehensively examined for content, structure, extent of crystallinity, and morphological properties. Characterization techniques such as X-ray Diffraction, Scanning Electron Microscopy, and Fourier Transform Infrared Spectroscopy were employed for detailed analysis. Compositional analysis revealed sugarcane bagasse and corn cob to possess the highest cellulose content, at 41 ± 0.41% and 40 ± 0.32% respectively, with FTIR analysis confirming relatively low C=C bond intensity in these samples. RSM optimization indicated a potential 46% isolated yield from a hybrid composition of sugarcane bagasse and corn cob at NaOH concentration of 2%, temperature of 45 °C, and 10 ml of 38% H2O2. However, FTIR analyses revealed the persistence of non-cellulosic materials in this sample. Further analysis demonstrated that cellulose isolated at NaOH concentration of 10%, temperature of 70 °C, and 20 ml of 38% H2O2 was of high purity, with a yield of 42%. Numerical optimization within this extraction condition range predicted a yield of 45.6% at NaOH concentration of 5%, temperature of 45 °C, and 20 ml of 38% H2O2. Model validation confirmed an actual yield of 43.9% at this condition, aligning closely with the predicted value. These findings underscore the significant potential of combinning and utilizing agricultural wastes as a valuable source of cellulose, paving the way for sustainable and resource-efficient practices in various industrial applications.

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Different treatments of pearl millet for cellulose recovery: effects on lignocellulosic composition

Cited by 2 publications

References 0 publications

Development of millet-acid whey formulations with nutritional, microbiological, and sensory characterization

Development of millet-acid whey formulations with nutritional, microbiological, and sensory characterization

Isolation, characterization and response surface method optimization of cellulose from hybridized agricultural wastes

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