Article
Agricultural Engineering
Yuwei Zhang, Zhaoxian Xu, Minrui Lu, Xingwang Ma, Sitong Chen, Yanchen Wang, Wenyuan Shen, Pingping Li, Mingjie Jin
Summary: A lignocellulosic biomass-based lactic acid biorefinery system was developed in this study, which involved chemical pretreatment and densification of the biomass. The system successfully increased lactic acid titers, enabling efficient scale production of cellulose-based lactic acid.
BIORESOURCE TECHNOLOGY
(2023)
Article
Food Science & Technology
Wenhui Fu, Chenglong Liu, Xiao Meng, Sha Tao, Wentong Xue
Summary: This study found that co-culturing yeast can accelerate protein degradation and significantly reduce allergen content in dough. RNA sequencing analysis showed that the presence of yeast can promote protein metabolism in Pediococcus acidilactici XZ31 for a certain period of time. These results suggest the potential use of multi-strain leavening agents for producing hypoallergenic wheat products.
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Joana Campos, Jie Bao, Gunnar Liden
Summary: This study demonstrates that two modified strains efficiently utilize high mannose content in softwood hydrolysate to produce high-purity L and D-lactic acid. Despite lower mannose utilization rates compared to glucose, this research provides important insights for future production of chiral lactic acid from lignocellulosic feedstocks.
JOURNAL OF BIOTECHNOLOGY
(2021)
Article
Microbiology
Young-Ran Song, Chan-Mi Lee, Seon-Hye Lee, Sang-Ho Baik
Summary: PA-M76 demonstrated strong probiotic properties with high tolerance in GIT environments, broad antimicrobial activity, and effective immune response elicitation. Lactic acid fermentation of BRE by PA-M76 resulted in increased antioxidant activity, while not significantly affecting total anthocyanin and flavonoid content.
Article
Biotechnology & Applied Microbiology
Yixin Zhang, Musen Wang, Samaila Usman, Fuhou Li, Jie Bai, Jiayao Zhang, Xusheng Guo
Summary: Pediococcus acidilactici and an exogenous fibrolytic enzyme were used to improve the fermentation quality and lignocellulose conversion of Caragana korshinskii silage. The addition of P. acidilactici and Acremonium cellulase (PA + AC) resulted in the highest lactic and acetic acids, lowest non-protein nitrogen and ammonia nitrogen levels. The bacterial community in all silages was dominated by P. acidilactici, and the addition of P. acidilactici led to a simpler network of bacterial interaction and lower bacterial diversity. PA treatment exhibited lower structural carbohydrates degradation but performed better in lignocellulose conversion during enzymatic saccharification. These findings suggest that pretreating C. korshinskii with PA can improve its silage quality and make it a potential feedstock for bio-product and biofuel production.
MICROBIAL BIOTECHNOLOGY
(2023)
Article
Food Science & Technology
Do-Yeong Kim, Jinseon Kim, Ji Hyeon Kim, Wang June Kim
Summary: The study found that the indigenous bacteriocin-producing Pediococcus acidilactici HWO1 can be used in malt production to preserve lactic acid bacteria and improve the characteristics of malt.
Article
Agricultural Engineering
Zhongyang Qiu, Xushen Han, Jianlong He, Yanan Jiang, Guangli Wang, Zejia Wang, Xiaoyan Liu, Jun Xia, Ning Xu, Aiyong He, Hanqi Gu, Jiaxing Xu
Summary: Inhibitor tolerance remains a challenge for lactic acid bacteria in lignocellulose biorefinery. This study obtained an engineered strain with high tolerance through long-term adaptive evolution and successfully achieved simultaneous saccharification and fermentation in one step.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
X. Zhang, X. S. Guo, F. H. Li, S. Usman, Y. X. Zhang, Z. T. Ding
Summary: This study screened lactic acid bacteria strains with high-antioxidant activity and applied them to alfalfa silage. The results showed that these strains improved fermentation, reduced ammonia nitrogen concentration, decreased the loss of antioxidants, and increased total antioxidant capacity and polyunsaturated fatty acid content. Among them, strain AS21 exhibited the best performance.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2022)
Article
Food Science & Technology
Jose David Garcia-Lopez, Claudia Teso-Perez, Antonio Manuel Martin-Platero, Juan Manuel Peralta-Sanchez, Juristo Fonolla-Joya, Manuel Martinez-Bueno, Alberto Banos
Summary: This study investigated the biodiversity of antagonistic LAB strains from Andalusian traditional sausages and identified Pediococcus acidilactici ST6 as a producer of Pediocin-PA and Lactiplantibacillus paraplantarum BPF2 as a producer of Leucocin K. These strains could be potentially used in the food industry as starters or protective cultures.
Article
Food Science & Technology
Tram Anh Ngoc Le, Jaslyn Jie Lin Lee, Wei Ning Chen
Summary: Despite the challenges of resource cost and production efficiency, this study successfully used jackfruit seed starch (JFSS) to enhance lactic acid production efficiency through co-fermentation of L. plantarum and B. subtilis. The JFSS contained high amounts of resistant starch and amylose, and the co-fermentation stimulated the growth of L. plantarum without significant by-product output. This research contributes to improving lactic acid production efficiency and exploring the interaction between L. plantarum and B. subtilis.
JOURNAL OF FUNCTIONAL FOODS
(2023)
Article
Food Science & Technology
Anshula Sharma, Masafumi Noda, Masanori Sugiyama, Baljinder Kaur, Ajaz Ahmad
Summary: Metabolic engineering was utilized to improve the efficiency of microbial strains for high-level fermentative production of L-alanine. A synthetic alaD gene was successfully cloned and expressed in a recombinant P. acidilactici BD16 strain, resulting in a significant increase in L-alanine production. The developed bioprocess showed promise as a potential alternative to chemical-based commercial synthesis of L-alanine for industrial applications.
Article
Food Science & Technology
Ana Teresa Noguerol, Marta Igual, M. Jesus Pagan
Summary: This research aimed to obtain an antimicrobial powder from by-products of lactic acid bacteria and tested for its physicochemical properties and antimicrobial activity. The study found that microbial stabilisation and spray-drying are better techniques to obtain a more stable powder with higher productivity.
Article
Biochemistry & Molecular Biology
Shumao Cui, Jie Jiang, Bowen Li, R. Paul Ross, Catherine Stanton, Jianxin Zhao, Hao Zhang, Bo Yang, Wei Chen
Summary: This study investigated the effects of short-term administration of different genotypes of P. pentosaceus on physiological characteristics, inflammation, and intestinal microecology in mice. Results showed that various strains of P. pentosaceus had different effects on gut microbiota and inflammation, with some strains being harmful while others beneficial. The presence of different genotypes of bacteriocin may explain the variations among strains, providing theoretical support for further exploring the probiotic effects of P. pentosaceus.
Article
Biotechnology & Applied Microbiology
Zhao Yan, Mingxing Chen, Jia Jia, Jie Bao
Summary: This study aimed to enhance the acid tolerance of an engineered Pediococcus acidilactici strain using metabolic modification and adaptive evolution approaches. While overexpression of certain genes did not show significant improvement, low pH adaptive evolution resulted in clear enhancement. However, further decrease in pH led to a dramatic reduction in L-lactic acid generation.
FERMENTATION-BASEL
(2022)
Article
Biotechnology & Applied Microbiology
Yaqin Sun, Xiaoying Li, Lida Wu, Yi Li, Fan Li, Zhilong Xiu, Yi Tong
Summary: The study demonstrates the potential of a thermophilic microbial consortium DUT50 for improving corn stover utilization and achieving high bioconversion efficiency in lactic acid production. The consortium shows resistance to inhibitors from lignocellulose pretreatment and efficiently metabolizes both hexose and pentose sugars without carbon catabolite repression effect, leading to successful production of lactic acid from non-detoxified acid-pretreated corn stover via simultaneous saccharification and co-fermentation process.
BIOTECHNOLOGY FOR BIOFUELS
(2021)
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)