Article
Agricultural Engineering
Hongqiong Zhang, Rui Zhang, Yunong Song, Xinying Miu, Quanguo Zhang, Jingbo Qu, Yong Sun
Summary: This study investigated the effects of using urea combined with steam explosion on the enzymatic hydrolysis and ethanol production of corn stover. The results showed that optimal conditions for ethanol production were 4.87% urea addition and 1.22 MPa steam pressure. The addition of urea and steam explosion significantly increased the reducing sugar yield and degradation rates of cellulose, hemicellulose, and lignin.
BIORESOURCE TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Wan Sun, Xuezhi Li, Jian Zhao, Yuqi Qin
Summary: This study focused on the fractionation of corn stover using different pretreatment strategies to enhance enzymatic digestibility and cellulosic ethanol production. The combined dilute acid and alkaline sodium sulfite pretreatment effectively separated cellulose, hemicellulose, and lignin from corn stover. The results provided valuable insights for the biorefinery of corn stover.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agricultural Engineering
Alonso G. Hernandez-Mendoza, Sergio Saldana-Trinidad, Sergio Martinez-Hernandez, Bianca Y. Perez-Sarinana, Magdiel Lainez
Summary: The study demonstrated the production of bioethanol from cocoa pod husk through optimized alkaline pretreatment and enzymatic hydrolysis processes. The optimal alkaline pretreatment condition was found to be 5% NaOH for 30 minutes at 120 degrees Celsius, while optimal enzymatic hydrolysis conditions were 10 FPU g(-1) substrate and 10% solid loading.
BIOMASS & BIOENERGY
(2021)
Article
Agricultural Engineering
Fanyang Meng, Jing Fan, Fei Cui, Haiyan Yang, Zhengjun Shi, Dawei Wang, Jing Yang
Summary: This study proposed an innovative and efficient pre-treatment method using peroxy-citric acid (HPCA) to enhance enzymatic hydrolysis and bio-ethanol production of bamboo residues. HPCA-treated bamboo residues showed significantly higher enzymatic saccharification yield compared with citric acid (CA) pretreated residues. The removal of lignin and xylan was also effectively achieved by HPCA. Ethanol recovery of 17.18 g/L was achieved. This work provides a reference for mild biomass pretreatment using organic peracids.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Physical
Marta Babicka, Magdalena Wozniak, Kinga Szentner, Monika Bartkowiak, Barbara Peplinska, Krzysztof Dwiecki, Slawomir Borysiak, Izabela Ratajczak
Summary: This study focused on the production of nanocellulose using hydrolysis with ionic liquids, resulting in nanocellulose with regular and spherical structures with diameters of 30-40 nm. The nanocellulose exhibited lower crystallinity and thermal stability compared to materials obtained through enzymatic hydrolysis. The choice of ionic liquid also had an impact on the particle size and structure of the nanocellulose.
Article
Energy & Fuels
Debapriya Sarkar, Sushant Prajapati, Kasturi Poddar, Angana Sarkar
Summary: This study evaluates the potential of banana peel as a substrate for ethanol production and investigates a single-step ethanol production process without any pretreatment. It is found that banana peel has the potential for ethanol production and high temperature and pH support higher ethanol production.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Review
Energy & Fuels
Xiaolin Li, Yan Shi, Weiwei Kong, Jiping Wei, Wenjun Song, Suying Wang
Summary: Lignocellulosic biomass is a promising renewable energy source, and biological pretreatment methods have advantages in improving enzymatic hydrolysis efficiency. However, the time-consuming and low efficiency of biological pretreatment still limit its large-scale application.
Article
Green & Sustainable Science & Technology
Olugbenga Abiola Fakayode, Nelson Dzidzorgbe Kwaku Akpabli-Tsigbe, Hafida Wahia, Shanshan Tu, Manni Ren, Cunshan Zhou, Haile Ma
Summary: The study demonstrates that the combined ultrasonication and deep eutectic solvent (DES) pretreatment, along with enzymatic hydrolysis and fermentation, is an efficient approach for bio-ethanol production from watermelon rind biomass. This integrated bioprocess improves fermentation efficiency and increases bio-ethanol yield through effective delignification, solubilization, and hydrolysis of cellulose and hemicellulose in the biomass.
Article
Agricultural Engineering
Ankita Juneja, Bert Noordam, Herman Pel, Rahul Basu, Maaike Appeldoorn, Vijay Singh
Summary: Optimized two-stage pretreatment conditions convert corn fiber into fermentable sugars with high yields of glucose, xylose, and arabinose after hydrolysis. Using engineered yeast for SSF results in higher ethanol concentrations, while also increasing the protein content in the residual solid.
BIORESOURCE TECHNOLOGY
(2021)
Article
Energy & Fuels
Sara Diaz, Zaida Ortega, Antonio N. Benitez, Maria D. Marrero, Florbela Carvalheiro, Luis C. Duarte, Leonidas Matsakas, Eleni Krikigianni, Ulrika Rova, Paul Christakopoulos, Maria C. Fernandes
Summary: The study found that hydrothermally pre-treated BPP is a good candidate for oligosaccharides production, while the addition of pectinase and endo-glucanase did not improve enzymatic hydrolysis performance.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Chemistry, Physical
Jinling Cai, Yu Wang, Jie Liu, Xinzhi Zhang, Fengmei Li
Summary: This study uses NaOH/urea and electrohydrolysis pretreatment to enhance the disruption of rice straw and the production of biofuels and chemicals. The pretreatment methods effectively disrupt the lignin structure and increase the cellulose crystallinity of rice straw. The hydrolysis of the pretreated rice straw produces a higher amount of reducing sugars and an increased yield of hydrogen.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Agricultural Engineering
Shereena P. Joy, Chandraraj Krishnan
Summary: The study demonstrates that pretreatment with ammoniacal glycerol can significantly improve saccharification efficiency and ethanol yield from sorghum biomass, benefiting both biodiesel and bioethanol industries.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Agricultural Engineering
Qianqian Yang, Lei Zhang, Zhina Lian, Junhua Zhang
Summary: In this study, lactic acid was used for XOS production from corncob, achieving a XOS yield of 69.9%. Additionally, cellulase hydrolysis of corncob residue resulted in 95.6% glucose and 54.0% xylose. Bacillus subtilis YS01 was successfully cultured using the cellulase hydrolysate, with a viable count of 6.4x10(8) CFU/mL and glucose and xylose utilization rates of 99.0% and 89.8%, respectively.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Romina Avila, Elvira Carrero, Teresa Vicent, Paqui Blanquez
Summary: Integration of microalgae-based systems with conventional wastewater treatment plants offers an effective alternative for waste stream management. Alkaline and enzymatic pretreatments were assessed for a microalgal culture mainly consisting of Chlorella sp. and Scenedesmus sp. cultivated in industrial winery wastewater. Enzyme pretreatments with cocktails B and C at 1% dose improved methane production during anaerobic digestion, showing potential for a waste recycled bio-circular economy.
Article
Agricultural Engineering
Hong Liu, Zhiping Zhang, Chaoyang Lu, Jian Wang, Kaixin Wang, Siyi Guo, Quanguo Zhang
Summary: The method of enzymatic hydrolysis after alkaline pretreatment significantly improves the production efficiency of biohydrogen from microalgae biomass, providing scientific reference for the development of efficient and low-cost biohydrogen production technology.
BIORESOURCE TECHNOLOGY
(2022)
Article
Food Science & Technology
Anna Maria Polania Rivera, Cristina Ramirez Toro, Liliana Londono, German Bolivar, Juan Alberto Ascacio, Cristobal Noe Aguilar
Summary: The effects of temperature, moisture content, and pH on the release of bioactive compounds with antioxidant capacity during solid-state fermentation of MD2 pineapple peel with Rhizopus oryzae (MUCL 28168) were evaluated. The results showed that temperature had a significant effect on total phenolic content and DPPH antioxidant activity, while pH had a significant effect on ABTS radical elimination activity.
JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
(2023)
Article
Energy & Fuels
Gilver Rosero-Chasoy, Rosa M. Rodriguez-Jasso, Cristobal N. Aguilar, German Buitron, Isaac Chairez, Hector A. Ruiz
Summary: This study investigates the growth and production of carbohydrates, proteins, lipids, and chlorophyll in Spirulina platensis using synthetic wastewater. A mixture experimental design based on carbon-nitrogen-phosphorus (C:N:P) ratio was employed. Scale-up in microalgal biomass growth was conducted in a tubular column photobioreactor. The activation energy and kinetic growth analysis of Spirulina platensis biomass were determined, with a focus on carbohydrate concentration.
Article
Pharmacology & Pharmacy
Cristian Torres-Leon, Fernanda Rebolledo Ramirez, Jorge A. Aguirre-Joya, Agustina Ramirez-Moreno, Monica L. Chavez-Gonzalez, David R. Aguillon-Gutierrez, Luis Camacho-Guerra, Nathiely Ramirez-Guzman, Salvador Hernandez Velez, Cristobal N. Aguilar
Summary: This study is the first record of medicinal plants in the southwest arid zone of Coahuila state. Data on 77 species of medicinal plants were collected through a questionnaire survey of 122 residents. The study revealed that the residents in this area possess rich ethnomedicinal knowledge and actively use medicinal plants for treating various diseases. Further phytochemical research is needed to confirm the therapeutic potential and safety of the identified plants.
SAUDI PHARMACEUTICAL JOURNAL
(2023)
Article
Nutrition & Dietetics
Jorge Eduardo Angulo Lopez, Adriana Carolina Flores Gallegos, Rosa Maria Rodriguez Jasso, Cristobal Noe Aguilar Gonzalez, Liliana Serna Cock
Summary: This study aimed to improve the nutritional quality of cereal bars by incorporating ingredients such as soybean sprouts and fruit by-products. The selected formulation had high protein content (13.6g/100g p.s.) and crude fiber content (13.1g/100g p.s.), as well as good protein digestibility (69%) and functional properties such as swelling and water retention capacity. The cereal bar showed potential prebiotic effects and ACE-I inhibitory activity.
ARCHIVOS LATINOAMERICANOS DE NUTRICION
(2023)
Article
Food Science & Technology
Sarah L. Paz-Arteaga, Juan A. Ascacio-Valdes, Cristobal N. Aguilar, Edith Cadena-Chamorro, Liliana Serna-Cock, Miguel A. Aguilar-Gonzalez, Nathiely Ramirez-Guzman, Cristian Torres-Leon
Summary: The use of Aspergillus niger GH1 for solid-state fermentation of pineapple peel and core was studied to generate value-added bioproducts. The results showed an increase in free phenols and antioxidant activity during the fermentation process. In addition, enzyme activities and the presence of phenolic acids were also enhanced. The findings provide insights into the chemical compounds produced by A. niger with potential industrial applications.
INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES
(2023)
Article
Energy & Fuels
Salvador A. Saldana-Mendoza, Arturo S. Palacios-Ponce, Hector A. Ruiz, Juan A. Ascacio-Valdes, Cristobal N. Aguilar
Summary: Revalorization of green tea residues (GTR) was achieved through solid-state fermentation (SSF) using Aspergillus niger 28A for cellulase production. An exploratory study demonstrated the high titers of endocellulases (EC), beta-glucosidases (BG), and total cellulase activity (FPUase) produced by A. niger 28A. Optimal operational conditions were determined for each enzyme activity, and after partial purification, BG reached a specific activity of 496.90 +/- 75.04 IU/mg. Green tea residues prove to be a suitable biomass and substrate for cellulase production, offering a way for revalorization and the generation of high-value enzymes.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Food Science & Technology
Pedro Aguilar-Zarate, Gerardo Gutierrez-Sanchez, Mariela R. Michel, Carl W. Bergmann, Jose J. Buenrostro-Figueroa, Juan A. Ascacio-Valdes, Juan C. Contreras-Esquivel, Cristobal N. Aguilar
Summary: This study purifies an enzyme capable of degrading punicalagin. The enzyme is produced by Aspergillus niger GH1 through solid-state fermentation, induced by ellagitannins as the sole carbon source. Purification steps include lyophilization, desalting, anionic exchange, and gel filtration chromatography. The enzyme's kinetic constants were calculated using punicalagin, methyl gallate, and sugar beet arabinans.
Article
Biotechnology & Applied Microbiology
Jose C. De Leon-Medina, Jose J. Buenrostro-Figueroa, Leonardo Sepulveda, Cristobal N. Aguilar, J. A. Ascacio-Valdes
Summary: The aim of this study was to extract ellagitannins from rambutan peel and identify the enzymes involved in their biodegradation through solid-state fermentation (SSF).
FOOD AND BIOPRODUCTS PROCESSING
(2023)
Review
Biotechnology & Applied Microbiology
Salvador A. Saldana-Mendoza, Sandra Pacios-Michelena, Arturo S. Palacios-Ponce, Monica L. Chavez-Gonzalez, Cristobal N. Aguilar
Summary: Currently, the agricultural sector is facing severe problems due to the food and economic losses caused by the attack of phytopathogens. Conventional crop protection techniques using synthetic pesticides have become inconvenient due to their negative effects on health, environment, and the development of resistance. Using biocontrol agents like Trichoderma provides a safe alternative to synthetic pesticides and offers beneficial aspects to crop development and bioremedial effects in pesticide-contaminated fields. This article also explains the production of spore-based biopesticides through fermentation processes and formulation development.
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2023)
Article
Microbiology
Mariana Delgado-Garcia, Osvaldo Gomez-Secundino, Jorge A. Rodriguez, Juan Carlos Mateos-Diaz, Marcelo Muller-Santos, Cristobal N. Aguilar, Rosa Maria Camacho-Ruiz
Summary: This study aims to characterize bacterioruberin and its isomers, explore their antioxidant activity, and evaluate their MMP-9 inhibition activity in extracts from Natronoccoccus sp. TC6 and Halorubrum tebenquichense SU10.
Article
Food Science & Technology
Anna Maria Polania, Cristina Ramirez, Liliana Londono, German Bolivar, Cristobal Noe Aguilar
Summary: In this study, phenolic compounds from pineapple by-products were extracted using solid-state fermentation and ultrasound, and then encapsulated using ionotropic gelation. The resulting microencapsulates showed suitable moisture content, solubility, and wettability, as well as high total phenolic content, antioxidant capacity, and bioactive compound content. Therefore, this research is of great importance for the development of functional foods.
Review
Biotechnology & Applied Microbiology
Soubhagya Tripathy, Deepak Kumar Verma, Alok Kumar Gupta, Prem Prakash Srivastav, Ami R. Patel, Monica L. Chavez Gonzalez, Gemilang Lara Utama, Cristobal Noe Aguilar
Summary: This review investigates the impact of encapsulation on biofunctional components (BFCs) in food and explores the application of nanoencapsulation techniques to preserve and enhance the functional attributes of naturally present food BFCs in the food industry.
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
(2023)
Article
Engineering, Environmental
Rosa M. Shiva, Rosa M. Rodriguez-Jasso, Iosvany Lopez-Sandin, Miguel A. Aguilar, Claudia M. Lopez-Badillo, Hector A. Ruiz
Summary: Enzymatic saccharification of pretreated lignocellulosic biomass is crucial in biochemical biorefineries. To make the process economically feasible, it needs to be operated at high solids loadings, above 15% (w/v) biomass concentration. However, as the solids loading increases, the viscosity of the biomass slurry becomes high, which hampers the mass transfer and mixing, limiting the addition of more solids.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Biotechnology & Applied Microbiology
Daniela Iga-Buitron, Edgar Torres-Maravilla, Luis G. Bermudez-Humaran, Juan A. Ascacio-Valdes, Raul Rodriguez-Herrera, Cristobal N. Aguilar, Adriana C. Flores-Gallegos
Summary: Lactic acid bacteria can enhance the nutritional content of vegetables and have positive effects on human diet and colorectal cancer prevention. In this study, different fermentation methods were used to process broccoli, and the potential of fermented broccoli in CRC chemoprevention was evaluated using in vitro cellular models. The results showed that fermented broccoli extracts had increased antioxidant activity and inhibited the proliferation of cancer cell lines in a concentration-dependent manner. The findings also indicated that fermented broccoli could have anti-inflammatory effects.
FERMENTATION-BASEL
(2023)