Bio-transforming Cassava Pulp into Valuable Volatile Fatty Acids as Renewable and Inexpensive Substrates for Biogas and Bioplastic Prospects
Thailand's cassava pulp (CP) waste presents a significant agro-industrial challenge, but it also holds untapped potential for producing valuable volatile fatty acids (VFAs). This study explores an innovative CP waste management approach that leverages microbial fermentation to produce acetic and butyric acids, key components in biogas, bioplastics, and bio-based chemicals. By enriching a microbial consortium with acid-tolerant Clostridium species, the process achieves high VFA yields with low operational costs, reducing greenhouse gas emissions. This method offers a sustainable solution with the potential to generate millions of tons of VFAs annually, supporting a shift toward greener, circular economies.
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- Aug. 16, 2024
Technology Levels in Cassava Cultivation Alter Phytosociology of Weeds
This study evaluated weed phytosociology under different crop management technologies in cassava production in Rio Grande do Sul, Brazil. Three technology levels were compared: low, medium, and high. Weed density and diversity decreased with increasing technology levels. Predominant species belonged to the Poaceae family, with Cyperus genus prominent in Santa Maria. S-metolachlor application at high technology levels reduced weed frequency and diversity compared to non-chemical control levels.
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- March 23, 2024
Effect of Long-Term Cassava Cultivation on the Morphology and Properties of Soils in Lampung, Southern Sumatra, Indonesia
The study investigates the impact of long-term cassava cultivation (> 20 years) on soil morphology and properties in Lampung, South Sumatra, Indonesia, compared to rarely tilled mixed gardens. Cassava cultivation brightened soil color and altered soil structure, reducing water available pores and organic carbon content while lowering soil pH, CEC, and exchangeable bases. However, base saturation remained unaffected despite changes in exchangeable bases
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- March 23, 2024
Cleaner and faster method to detect adulteration in cassava starch using Raman spectroscopy and one-class support vector machine
The study proposes Raman spectroscopy as a rapid, cost-effective method for detecting adulterants in cassava starch, addressing food quality control concerns. It evaluates one-class support vector machine (OC-SVM) and soft independent modelling by class analogy (SIMCA) as data treatment approaches, with OC-SVM demonstrating superior sensitivity, specificity, and accuracy in detecting adulterations.
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- March 23, 2024
Cassava mosaic disease in South and Southeast Asia: current status and prospects
Cassava, vital in Asia, Africa, and South America, faces challenges from Cassava Mosaic Disease (CMD), notably in South and Southeast Asia, where Indian and Sri Lankan cassava mosaic viruses prevail. Phytosanitation, vector control, breeding, and genetic engineering are key management strategies discussed in this review, which also covers disease spread and diagnostic advancements.
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- March 23, 2024
Biogeochemical cycling of zinc in soil-cassava cropping system in Thailand
Inadequate management in continuous plant production may deplete zinc (Zn) in soils, leading to Zn deficiency in staple foods and human malnutrition in underdeveloped countries. This study assessed Zn dynamics in cassava-grown soils in Thailand, revealing low available Zn levels and varied total Zn stocks. Phyllosilicates, organic matter, and iron oxyhydroxides were primary Zn hosts. Most locations experienced net Zn depletion, emphasizing the urgent need for Zn fertilizer and organic manure to sustain long-term crop production.
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- March 23, 2024
Extraction and characterisation of starch from cassava (Manihot esculenta) agro-industrial wastes
This study explores extracting starch from cassava agro-industrial wastes, particularly cassava peel and bagasse, as a non-edible source. A developed extraction method maximized starch yield, with cassava peel starch exhibiting a significantly higher yield compared to bagasse. Characterization through SEM, FTIR, and XRD showed similarities in morphology and crystalline phase with commercial cassava starch. These findings suggest potential applications of cassava peel and bagasse starch as biodegradable food packaging materials.
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- March 23, 2024
Valorization of cassava residues for biogas production in Brazil based on the circular economy: An updated and comprehensive review
Biorefining promotes sustainability by converting organic waste into renewable energy. Anaerobic digestion efficiently manages cassava residues, producing biogas and biofertilizer. Brazil's substantial agricultural productivity and cassava waste offer significant potential for biogas production. This review explores anaerobic digestion's role in cassava residue management, emphasizing biogas generation and scalability.
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- March 23, 2024
Impact of Starch from Cassava Peel on Biogas Produced through the Anaerobic Digestion Process
This study investigates the impact of cassava peel starch on biogas production via anaerobic digestion. Utilizing beating pre-treatment to isolate starch, temperature, volatile solid, and sludge quantity effects were analyzed using Design of Experiments. Results indicate starch has minimal influence on biogas quality, with maximum biogas volume at 3830 cc and CH4 production at 850 cc g−1-VS, suggesting potential energy gains.
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- March 23, 2024
New hydrocyclone design for high starch yield: Effect of cylindrical-conical length proportion on the starch, sulfur and protein separation efficiencies
This research aimed to optimize hydrocyclone design for efficient separation of starch and impurities in cassava starch production. Parameters such as cylindrical-conical length (Lcy/Lco ratio) and underflow-overflow diameter (Du/Do ratio) were adjusted to enhance separation efficiency. The designed hydrocyclone achieved high separation efficiencies for starch, sulfur, and protein, providing improved refining and recovery capabilities in the cassava starch production process.
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- March 23, 2024