Article
Energy & Fuels
Do-Hyung Kim, Beom-Jung Kang, Sang-Hyoun Kim, Jeong-Hoon Park, Jeong-Jun Yoon
Summary: Adding magnetite (Fe3O4) can reduce the by-products generated from acid hydrolysis of biomass and enhance hydrogen production. This study extracted sugars from Gelidium amansii through acid hydrolysis and evaluated hydrogen production with magnetite supplementation. The addition of magnetite at a concentration of 1.3 g/L or lower increased hydrogen production by 11.4% on average, especially for the main by-product, 5-hydroxymethylfurfural (5-HMF). This strategy could optimize biohydrogen production using Gelidium amansii and reduce detoxification costs.
Article
Biochemistry & Molecular Biology
Yushi Chen, Qishen Wang, Haitao Luo, Shanggui Deng, Yongqi Tian, Shaoyun Wang
Summary: The ethanol extract of Gelidium amansii (GAM) is found to have strong antioxidant and anti-aging effects, prolonging the lifespan in high-fat male flies. GAM regulates protein and oxidative stress-related metabolites to alleviate aging caused by oxidative stress.
Article
Agricultural Engineering
Wei Xie, Zhiqian Zhang, Shengkai Bai, Yi-Rui Wu
Summary: By constructing a new strain and optimizing the process, the conversion of agar into butanol was successfully achieved, overcoming the lack of algal hydrolases in solventogenic clostridia and increasing the butanol production.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Hao Luo, Zi-Jun Zhao, Rong Huang, Zhao-Bao Wang, Jian-Qun Lin, Lin-Xu Chen
Summary: Efficient biodiesel production from biomass is crucial for the transition to green energy. This study proposes a strategy to solve the temperature incongruity in biodiesel production by developing thermotolerant yeast strains. Through adaptive laboratory evolution and plasma mutagenesis, a thermotolerant strain capable of growing at high temperatures was obtained. Selecting high lipid content cells resulted in increased lipid accumulation capacity. The use of this strain in simultaneous saccharification fermentation of pretreated corn stover at elevated temperatures yielded high lipid generation efficiency. This study provides a new method and strain for high thermotolerance and high biodiesel-production yeasts.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Energy & Fuels
Jyosthna K. Goli, Bee Hameeda
Summary: The study successfully utilized Typha latifolia as substrate for xylitol and bioethanol production through chemical pretreatment and enzymatic hydrolysis.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Biotechnology & Applied Microbiology
Lihua Zhang, Zhen Chen, Junhua Wang, Wei Shen, Qi Li, Xianzhong Chen
Summary: Through a combination of metabolic engineering and process optimization, a uracil-deficient Candida tropicalis strain was successfully engineered to enhance xylitol production from xylose mother liquor (XML). The study provided a convenient method to transform the industrial by-product XML into the useful material xylitol.
MICROBIAL CELL FACTORIES
(2021)
Article
Biochemistry & Molecular Biology
Junxing Qu, Zhiheng Sun, Chen Peng, Daoqian Li, Wenyue Yan, Zhen Xu, Yayi Hou, Sunan Shen, Ping Chen, Tingting Wang
Summary: Candida tropicalis has been found to promote chemotherapy resistance in colon cancer by producing lactate and inhibiting the expression of MLH1, providing a new insight into improving the efficacy of colorectal cancer chemotherapy.
INTERNATIONAL JOURNAL OF BIOLOGICAL SCIENCES
(2021)
Article
Environmental Sciences
Yumeng Wang, Bingwen Xu, Shuxiang Ning, Shengnan Shi, Liang Tan
Summary: The study systematically characterized the osmo-tolerant yeast Candida tropicalis A1, which could decolorize various azo dyes under high-salinity conditions. By applying a static magnetic field (SMF), the dye-decolorization efficiency and osmo-tolerance of the yeast were significantly improved. The transcriptomic analysis revealed that certain genes were up-regulated by SMF, leading to enhanced dye biodegradation efficiency and osmo-tolerance of the yeast A1.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Agricultural Engineering
Sundeep Kaur, Payal Guleria, Arushdeep Sidana, Sudesh Kumar Yadav
Summary: Dilute nitric acid was used to fractionate hemicellulosic component of rice straw for efficient recovery of xylose and subsequent xylitol production.
BIOMASS & BIOENERGY
(2022)
Article
Biochemistry & Molecular Biology
Harsh Vardhan, Soumya Sasamal, Kaustubha Mohanty
Summary: This research described an environment-friendly technique of xylitol production from areca nut hemicellulosic hydrolysate, using an adapted strain of Candida tropicalis. Lime and acid pretreatment were conducted to enhance the activity of xylanase enzymes and improve the efficiency of enzymatic hydrolysis. Fermentation of xylose-rich hemicellulose hydrolysate with Candida tropicalis resulted in the production of xylitol, with about 85% pure xylitol crystals obtained through purification and crystallization.
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Carlos Domingo-Felez, Katarzyna Jankowska, Ioannis V. Skiadas, John M. Woodley, Manuel Pinelo
Summary: Continuous glucose fermentation with ultrasonic sedimentation of yeast cells achieves higher bioethanol production rates. The efficiency of the ultrasonic system for cell separation was predicted and validated. The results showed that ultrasonic sedimentation improves cell retention and ethanol production efficiency.
FOOD AND BIOPRODUCTS PROCESSING
(2023)
Article
Biotechnology & Applied Microbiology
Camila S. Varize, Augusto Bucker, Lucas D. Lopes, Renata M. Christofoleti-Furlan, Mariane S. Raposo, Luiz C. Basso, Boris U. Stambuk
Summary: The stress caused by ethanol on Saccharomyces cerevisiae cells is a limiting factor in industrial fuel ethanol production. This study focuses on the effects of genetic modifications on ethanol tolerance in an industrial yeast strain. The results show that one modification method improves fermentation performance under industrial conditions, leading to increased production of industrial fuel ethanol.
FERMENTATION-BASEL
(2022)
Article
Immunology
Pornpimol Phuengmaung, Wimonrat Panpetch, Uthaibhorn Singkham-In, Tanittha Chatsuwan, Chintana Chirathaworn, Asada Leelahavanichkul
Summary: SE > CT biofilms prominently induced biofilm matrix, fungemia, macrophage responses, and sepsis severity, whereas the microbial burdens were lower than in the single-organism biofilms. All biofilms were attenuated by l-cysteine.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2021)
Article
Engineering, Chemical
Darne Germano Almeida, Rita de Cassia Freire Soares da Silva, Hugo Morais Meira, Pedro Pinto Ferreira Brasileiro, Elias Jose Silva, Juliana Moura Luna, Raquel Diniz Rufino, Leonie Asfora Sarubbo
Summary: The biosurfactant produced from Candida tropicalis UCP0996 in a low cost-medium was found to effectively remove and degrade oil contaminants, showing great potential for commercial application in oil spill bioremediation.
Article
Energy & Fuels
Koudkeo Phommachan, Chansom Keo-oudone, Mochamad Nurcholis, Nookhao Vongvilaisak, Mingkhuan Chanhming, Vanhnavong Savanhnaly, Somchanh Bounphanmy, Minenosuke Matsutani, Tomoyuki Kosaka, Savitree Limtong, Mamoru Yamada
Summary: The thermotolerant yeast Candida tropicalis X-17, adapted through repetitive long-term cultivation at increasing temperatures and high glucose concentration, showed improved fermentation ability and tolerance to ethanol, furfural, and hydroxymethylfurfural. Transcriptome analysis revealed up-regulation of genes related to glucose transport, stress response, and cell wall proteins. These findings suggest that the up-regulation of these genes contributes to the improved phenotype of the adapted strain.