Article
Chemistry, Multidisciplinary
Marcos Valenzuela-Ortega, Jack T. Suitor, Mirren F. M. White, Trevor Hinchcliffe, Stephen Wallace
Summary: In this study, the researchers developed a new method to convert PET plastic waste into adipic acid using genetic engineering. By optimizing gene expression and enzyme activity, as well as immobilizing cells, they achieved efficient conversion. This research has the potential to reduce reliance on fossil resources and promote the reuse of waste materials.
ACS CENTRAL SCIENCE
(2023)
Article
Energy & Fuels
Yang Chen, Yanan Yin, Jianlong Wang
Summary: The study found that pretreating Laminaria japonica with gamma irradiation can enhance hydrogen production by dark fermentation. Irradiation at 10-30 kGy effectively breaks down the seaweed's structure and increases the concentration of organic compounds, but doses above 30 kGy may have a negative impact on hydrogen production efficiency.
Article
Endocrinology & Metabolism
Antonio Valle, Zamira Soto, Howbeer Muhamadali, Katherine A. Hollywood, Yun Xu, Jonathan R. Lloyd, Royston Goodacre, Domingo Cantero, Gema Cabrera, Jorge Bolivar
Summary: This study investigates the effect of blocking the pentose phosphate pathway (PPP) or activating the glyoxylate shunt on succinate production. Metabolite analysis reveals that releasing these restrictions through genetic manipulation can increase succinate yield.
Article
Biotechnology & Applied Microbiology
Yujia Jiang, Runze Pan, Yuxuan Tao, Wenlong Xiao, Wankui Jiang, Fengxue Xin, Wenming Zhang, Min Jiang
Summary: This study attempted to improve the environmental tolerance of E. coli for carboxylic acid production through biological membrane engineering. By introducing whiB and cti genes, the engineered E. coli achieved a higher SA production of 80.0 g/L in a 5-L fermenter, which was 37.0% higher than the control group. Further incorporation of fabA and fabB genes enhanced the strain's survival rate and metabolic performance under harsh environments, resulting in a SA production of 29.9 g/L with a yield of 0.79 g/g under low pH conditions in the fermenter. Membrane engineering proved to be an effective strategy in improving strain robustness and facilitating large-scale carboxylic acid production.
BIOCHEMICAL ENGINEERING JOURNAL
(2023)
Article
Food Science & Technology
Fang Fang, Chuqiao Xiao, Chu Wan, Yaqian Li, Xingyu Lu, Ying Lin, Jie Gao
Summary: Our study found that dietary mannogluconic acid (MA) and fucogalactan sulfate (FS) from Laminaria japonica have distinct structure characteristics and potential hypolipidemic effects. The results showed that FS was more effective than MA in reducing body weight and serum cholesterol levels, mitigating hepatic fat accumulation, and promoting antioxidant enzyme activity. Furthermore, FS also had a positive impact on gut microbiota and metabolism, increasing the abundance of beneficial bacteria and short chain fatty acids.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Agricultural Engineering
Zhi-Peng Wang, Pei-Kang Wang, Yan Ma, Jia-Xue Lin, Cheng-Long Wang, Yu-Xiang Zhao, Xin-Yue Zhang, Bei-Chen Huang, Shou-Geng Zhao, Lei Gao, Jing Jiang, Hai-Ying Wang, Wei Chen
Summary: The study demonstrated that the addition of Laminaria japonica hydrolysate (LPH) is a feasible and efficient strategy to promote fucoxanthin accumulation. In the LPH group, both fucoxanthin content and biomass were significantly increased.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agriculture, Multidisciplinary
Xue-Ying Li, Yu-Jing Wang, Shun Chen, Li-Hua Pan, Qiang-Ming Li, Jian-Ping Luo, Xue-Qiang Zha
Summary: The present study demonstrated that LJP61A significantly reduced the lesion burden in atherosclerotic mice and alleviated lipid deposition in Ox-LDL-stimulated macrophages. Moreover, LJP61A enhanced autophagy-mediated macrophage polarization, leading to reduced inflammation and atherosclerosis.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Energy & Fuels
Panwana Khunnonkwao, Chutchawan Phosiran, Sokra In, Sokha Kory, Kaemwich Jantama
Summary: This study demonstrates the potential of using empty oil-palm fruit bunch (EFB) as an alternative lignocellulose for bio-succinate production. By thermochemical pretreatment and detoxification, high concentrations and yields of bio-succinate from EFB were achieved. The developed fermentation process, without the supplementation of rich nutrients, may provide an economically feasible option for industrial succinate production.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Review
Biotechnology & Applied Microbiology
Yan-Hui Bi, Zhi Li, Zhi-Gang Zhou
Summary: Saccharina japonica, an economically and ecologically important brown alga, had hindered its karyotype analysis due to the small and similar metaphase chromosomes. However, the combination of DNA-intercalating dye 4 ', 6-Diamidino-2-phenylindole (DAPI) and fluorescence in situ hybridization (FISH) technique had progressively promoted its karyotype analysis in recent years. Various molecular markers, such as rDNAs, sex-linked markers, telomeric repeated sequences, and SSRs, were used in the karyotyping of S. japonica using FISH and other techniques. Additionally, attempts were made to use immunocytochemistry with kinetochore protein for more accurate chromosome analysis.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Food Science & Technology
Qiulin Yue, Zhongjian Wang, Fupeng Yu, Xueyang Tang, Le Su, Song Zhang, Xin Sun, Kunlun Li, Chen Zhao, Lin Zhao
Summary: This study found that fermentation by adding Saccharomyces cerevisiae and Lactiplantibacillus to Laminaria japonica significantly improved its nutritional and medicinal value, and altered its metabolite profiles.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Review
Chemistry, Applied
Hai-Yang Li, Yan-Ling Yi, Sheng Guo, Fang Zhang, Hui Yan, Zhi-Lai Zhan, Yue Zhu, Jin-Ao Duan
Summary: This review provides a comprehensive summary of the extraction, purification, structural characterization, and biological activities of Laminaria japonica polysaccharides, offering valuable insights for further research, production, and application in functional foods and therapeutic agents.
Article
Multidisciplinary Sciences
Justin Y. Lee, Mark P. Styczynski
Summary: Current metabolic modeling tools have limitations and the Linear Kinetics-Dynamic Flux Balance Analysis (LK-DFBA) framework was developed to address these limitations. The framework captures metabolite dynamics and regulation while retaining a linear programming structure. However, different systems require different constraint approaches, and genetic perturbations do not affect the optimal constraint approach.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
Sakuntala Mutyala, Shuwei Li, Himanshu Khandelwal, Da Seul Kong, Jung Rae Kim
Summary: This study found that acetate can be converted to succinate under microaerobic conditions by overexpressing citrate synthase (gltA) in Pseudomonas putida. The gltA-KT strain showed a nearly 50% improvement in succinate production compared to the wild type. Under optimal pH of 7.5, the accumulation of succinate was approximately 400% higher than that of the wild type. Overall, gltA overexpression alone resulted in 9.5% of the maximum theoretical yield in a minimal medium with acetate as the sole carbon source. This highlights the importance of citrate synthase in acetate conversion to succinate by P. putida under microaerobic conditions.
Article
Food Science & Technology
Aijun Tong, Dengwei Wang, Xiaoyan Liu, Zhiqun Li, Runfan Zhao, Bin Liu, Chao Zhao
Summary: This study evaluated the hypoglycemic effects of low molecular weight polysaccharides fractions from Laminaria japonica (LJOO) on mice with T2DM. The results showed that LJOO decreased FBG and insulin concentrations, altered the gut microbiota composition, increased the population of beneficial bacteria, and decreased the population of harmful bacteria. Additionally, LJOO stimulated the growth of SCFA-producing bacteria, resulting in increased SCFAs levels.
Article
Chemistry, Multidisciplinary
Dongsoo Yang, Woo Dae Jang, Sang Yup Lee
Summary: Researchers have successfully biosynthesized carminic acid from glucose in engineered Escherichia coli. Through enzyme screening and optimization, the biosynthesis of carminic acid was achieved.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Engineering, Environmental
Jiemin Zhou, Xuemei Zhou, Yuguang Li, Jianmin Xing
JOURNAL OF HAZARDOUS MATERIALS
(2015)
Article
Multidisciplinary Sciences
Jiemin Zhou, Xuming Bai, Ruilin Zhao
SCIENTIFIC REPORTS
(2017)
Article
Agricultural Engineering
Jie-Min Zhou, Xiang-Yang Ge, Wei-Guo Zhang
BIORESOURCE TECHNOLOGY
(2011)
Article
Agricultural Engineering
Jie-Min Zhou, Zi-Yu Song, Dao-Jiang Yan, Yi-Lan Liu, Mao-Hua Yang, Hong-Bin Cao, Jian-Min Xing
BIORESOURCE TECHNOLOGY
(2014)
Article
Engineering, Environmental
Jie-Min Zhou, Zi-Yu Song, Dao-Jiang Yan, Yi-Lan Liu, Mao-Hua Yang, Hong-Bin Cao, Jian-Min Xing
JOURNAL OF HAZARDOUS MATERIALS
(2014)
Article
Engineering, Environmental
Jiemin Zhou, Jianmin Xing
Summary: Sulfate-reducing bacteria play a crucial role in responding to nitrate stress in saline-alkali environments, with the addition of nitrate activating the denitrification pathway in denitrifying bacteria and relieving nitrate inhibition on SRB.
Article
Immunology
Chunyan Zhang, Zheng Li, Mengyuan Wang, Jiemin Zhou, Wenwen Yu, Huifang Liu, Bingxue Hu, Shifu Wang
Summary: This study evaluated the performance of bronchial brushing mNGS in diagnosing pulmonary infections in children on a large scale. The findings suggest that the extensive application of bronchial brushing mNGS could be expected.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2023)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)