Biofuels, Bioproducts and Biorefining最新文献

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Valorization of coffee silverskin by cascade extraction of valuable biomolecules: preparation of eco‐friendly composites as the ultimate step 通过级联萃取有价值的生物大分子实现咖啡银皮的增值：制备生态友好型复合材料的最终步骤

Biofuels, Bioproducts and Biorefining Pub Date : 2024-02-05 DOI: 10.1002/bbb.2587

Stefano Bianchi, M. Vannini, Laura Sisti, Paola Marchese, Norma Mallegni, Óscar Rodríguez, Stéphan Kohnen, J. Tchoumtchoua, Patrizia Cinelli, A. Celli

{"title":"Valorization of coffee silverskin by cascade extraction of valuable biomolecules: preparation of eco‐friendly composites as the ultimate step","authors":"Stefano Bianchi, M. Vannini, Laura Sisti, Paola Marchese, Norma Mallegni, Óscar Rodríguez, Stéphan Kohnen, J. Tchoumtchoua, Patrizia Cinelli, A. Celli","doi":"10.1002/bbb.2587","DOIUrl":"https://doi.org/10.1002/bbb.2587","url":null,"abstract":"This study presents a multidisciplinary approach for dealing with the environmental problems related to agro‐industrial coffee residues. The exploitation of these residues allows biomolecules to be obtained from renewable sources and enables the preparation of CO2‐neutral biocomposites, with the advantages of reducing fossil depletion, avoiding climate‐altering emissions, and limiting plastic pollution. Coffee silverskin (CSS), a by‐product deriving from coffee bean roasting, was subjected to different eco‐friendly extraction processes, such as ultrasound‐assisted, CO2‐supercritical, and water‐subcritical extractions to recover caffeine, phytosterols, and polyphenols. The residues remaining after the extractions were further valorized as fillers into biocomposites based on poly(1,4‐butylene succinate) (PBS). Biocomposites (filler content up to 30 wt%) were prepared by melt mixing, and they were characterized in terms of their thermal, mechanical, and morphological performance. The effect of the presence of residues derived from different extraction procedures on the resulting properties of biocomposites was assessed and discussed, and the ultrasound‐assisted treatment was found to leave the CSS residue as the most compatible with the PBS matrix. The results of this study indicate that the proposed bio‐refinery could successfully and fully valorize the CSS agro‐industrial residues, even in its ultimate step, producing biocomposites characterized by low economic and environmental impact; these new materials will be a possible bio‐alternative to the traditional polymers commonly used by the packaging industry.","PeriodicalId":505516,"journal":{"name":"Biofuels, Bioproducts and Biorefining","volume":"6 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139802876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biochar‐based catalysts derived from biomass waste: production, characterization, and application for liquid biofuel synthesis 从生物质废弃物中提取的生物炭催化剂：生产、表征及在液体生物燃料合成中的应用

Biofuels, Bioproducts and Biorefining Pub Date : 2024-02-01 DOI: 10.1002/bbb.2593

Van Nhanh Nguyen, Prabhakar Sharma, L. Rowiński, Huu Cuong Le, Duc Trong Nguyen Le, Sameh M. Osman, Huu Son Le, Thanh Hai Truong, Phuoc Quy Phong Nguyen, Dao Nam Cao

引用次数: 0

Application of Trametes pubescens for dye removal and biological pretreatment of sugarcane bagasse 应用竹节虫去除甘蔗渣中的染料并对其进行生物预处理

Biofuels, Bioproducts and Biorefining Pub Date : 2024-02-01 DOI: 10.1002/bbb.2591

Mustansir Abbas, Uroosa Ejaz, Muhammad Sohail, Abdullah K. Alanazi

{"title":"Application of Trametes pubescens for dye removal and biological pretreatment of sugarcane bagasse","authors":"Mustansir Abbas, Uroosa Ejaz, Muhammad Sohail, Abdullah K. Alanazi","doi":"10.1002/bbb.2591","DOIUrl":"https://doi.org/10.1002/bbb.2591","url":null,"abstract":"Sugarcane bagasse (SB) is an abundantly available agrowaste that is used extensively as a substrate for the production of different industrial enzymes. It is a renewable resource, rich in fermentable sugars. However, the presence of lignin makes it difficult for microbes to degrade it and so it is difficult to utilize it. Keeping in mind the role of white rot fungi in lignin degradation, Trametes pubescens MB89 was used in this study for the delignification of SB with the simultaneous production of laccase. The fungus was also used for the degradation of malachite green dye. A Box–Behnken design (BBD) was used to optimize variables affecting solid state fermentation of SB for laccase production. The leftover SB after fermentation was used for cellulase production by the thermophilic bacterium Neobacillus sedimentimangrovi UE25. The BBD depicted optimized conditions as 60% moisture, particle size 100 μ, 10 days’ incubation period, 450 μM CuSO4, and a temperature of 30 °C. The laccase titers of 1271 IU mL−1 were obtained under optimized conditions. Neobacillus sedimentimangrovi UE25 produced 4.574 IU mL−1 of endoglucanase and 1.812 IU mL−1 of β‐glucosidase by utilizing fungal pretreated SB. Scanning electron microscopy and Fourier transform infrared spectroscopy confirmed the impact of fungal cultivation on SB. Pores were observed after microbial pretreatment and there were changes in the morphological characteristics such as the pith and fiber of SB. To test the ability of laccase to break down aromatic dyes, we grew the fungus T. pubescens MB89 in a nutrient‐rich medium supplemented with malachite green dye. The fungus was able to remove 73.68% of the malachite green dye from the medium in 24 h. This shows that T. pubescens MB89 has a range of potential applications for environmental and industrial purposes.","PeriodicalId":505516,"journal":{"name":"Biofuels, Bioproducts and Biorefining","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139882809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0