Applied Environmental Biotechnology

Extensive aeration is required for constructed wetlands (CWs) since dissolved oxygen is essential in nutrients and pathogen removal. On the other hand, plants typically used in CWs can release oxygen into the system, lowering the need for external aeration. Hence, this study tried to uncover the oxygenation rate of three species of plants in the CWs system with limited oxygen and their capability to treat wastewater. Canna sp., Heliconia sp.,and Typha sp. were used and compared to uptake nutrients and reduce coliform numbers in domestic wastewater using sub-surface CWs in low levels of initial oxygen. In the meantime, oxygen release from the plant root was monitored in real-time using an IoT-based module. On the detention time of 24 hours, CWs planted with Typha sp. were able to reduce 61% NH4+ and 71% PO43−.The system was also able to remove coliform with a magnitude of 1.39 log units. In addition, Typha sp. was observed to generate a higher oxygenation rate to the CWs system compared to the other two plants at 0.175%/h, on average. These observations suggested that Typha sp. had the best prospect to be used in a sub-surface CWs system with the least external aeration needed.

Ridwan Muhamad Rifai

Anie Yulistyorini

Jenvia Rista Pratiwi

Muhammad Aris Ichwanto

Identifying prospective water plants for reducing nutrients and total coliform in sub-surface constructed wetlands with limited oxygen

识别有限氧气条件下地下人工湿地中减少营养物质和总大肠菌群的潜在水处理厂

Biosurfactants produced by native microorganisms have excellent surface activity and ideal environmental compatibility, and the mining of the biosurfactant-producing strains has become a key focus in the field of applied and environmental biotechnology. In this paper, we report a new lipopeptide-producing strain isolated from the production water of Daqing oilfield in China and identified as Bacillus Subtilis R1-2 based on 16S rRNA gene sequence analyses. A combination of ESI-MS and FT-IR analyses revealed that the strain R1-2 produced the surfactin family containing four members of the C12-surfactin, C13-surfactin, C14-surfactin and C15-surfactin, which is a representative family of the lipopeptide biosurfactants. The lipopeptide biosurfactant produced by the strain R1-2 exhibits excellent surface activity and good thermal stability over a temperature range between 20°C and 100°C and pH range between 3 and 14, and has a strong salt tolerance to NaCl concentration up to 140 g/L. In addition, the lipopeptide biosurfactant demonstrates significant properties in changing the contact angles of oil reservoir core slices from 86.2° to 39.0° and the wettability from strong oil-wet to strong water-wet, and therefore, resulted in a good oil removing ability with an efficiency of 64.84%, suggesting that the lipopeptide-producing strain R1-2 is promising in applications in environmental bioremediation and enhanced oil recovery.

Gui-Na Qi

Guo-Jun Li

Lei Zhou

Lian-He Wu

Yi-Fan Liu

Jin-Feng Liu

Hong-Ze Gang

Shi-Zhong Yang

Bo-Zhong Mu

Characterization and performance of a new lipopeptide biosurfactant producing strain Bacillus Subtilis R1-2

一种新型脂肽生物表面活性剂产生菌枯草芽孢杆菌R1-2的特性与性能

Mycotoxins contaminations in feedstuffs are one of the principal concerns worldwide nowadays, related to the fact that they may evoke health problems in animals and consequently in humans. Biodetoxification of mycotoxins by application of beneficial microorganisms (lactic acid bacteria or yeasts) is one of the well-known, relatively low-cost, easy, efficient, safe, and green approaches for the reduction of mycotoxins presence in feeds. The use of beneficial microorganisms as feed additives to remove mycotoxins is widely practiced in the industrial production of animal feed. In this overview, we aim to summarize the great potential of beneficial microorganisms as bio-detoxificant, including a summary of various reported detoxification activities of lactic acid bacteria or yeasts against mycotoxins with relevance for feedstuff. The principal focus is the detoxification of mycotoxins in livestock, poultry, and aquatic feed using beneficial microorganisms. The mechanisms of the detoxification process and effective factors in this process are also covered. This review article could be useful for biotechnologists, investigators, and animal feed manufacturers who have challenges regarding the existence of mycotoxins in feed, and help them to find the best method for feed bio-decontamination.

Alaleh Zoghi

Svetoslav Dimitrov Todorov

Kianoush Khosravi-Darani

Bio-detoxification of mycotoxin-contaminated feedstuffs: Using lactic acid bacteria and yeast

霉菌毒素污染饲料的生物脱毒：利用乳酸菌和酵母

Pesticides have considerably increased agricultural output, but their overuse presents serious threats to human health, food safety, and the environment. Alarmingly, only around 1% of pesticides used reach their intended pests, with the remainder polluting soil, water, and air. This causes broad environmental contamination and negative consequences on non-target animals, including people. Top pesticide-consuming countries, including China, the United States, and Brazil, confront considerable issues due to residual pesticide buildup. Recent biotechnology developments provide intriguing pesticide mitigation strategies. Engineered Escherichia coli (E. coli) strains have developed as very efficient bioremediation agents. These genetically engineered microbes are intended to convert hazardous chemicals into harmless metabolites. E. coli strains are tailored for increased expression of pesticide-degrading genes using modern genetic and metabolic engineering, dramatically enhancing their ability to break down hazardous chemicals. Studies have shown that modified E. coli may degrade persistent pesticides such as Paraoxon and p-nitrophenol (PNP), turning them to harmless molecules. These bacteria may reach great densities, making them ideal for large-scale detoxifying operations. Furthermore, recombinant DNA technology enables the development of E. coli strains with several copies of degradation genes, which improves their bioremediation capacities. Despite these advances, obstacles persist, including biosafety issues and the need for regulatory supervision. Ongoing research is critical for addressing these concerns and developing safer, more sustainable agriculture techniques. Engineered E. coli strains represent a substantial advancement in pesticide mitigation, providing a feasible approach for reducing environmental pollution and protecting human health.

Anju Ishwarya R

Kamaraj M

Aravind J

Recent advancements in pesticide mitigation using engineered Escherichia coli strains

利用工程化大肠杆菌菌株进行农药缓解的最新进展

In the context of advancing "green" development and global environmental standards, there is a pressing need to focus on biological methods of wastewater treatment in Kazakhstan, particularly concerning oil pollution. This study aims to develop an optimal technological model to minimise destructive pollution of wastewater by oil products using algae and aquatic plants on the example of artificial bioponds within the Ozen field owned by "Ozenmunaigas" JSC in the Mangistau region. Through a comprehensive set of scientific methods including induction and deduction, abstraction, system analysis, synthesis, concretisation, formalisation, and generalisation, the study assesses the ecological state of water resources, identifies pollution dynamics, and evaluates the impact of algae and aquatic plants on oil-contaminated effluents. The research culminates in the development of an effective biotreatment technology to mitigate the negative effects of wastewater on water quality and enhance Kazakhstan's overall environmental landscape. Furthermore, the study explores innovative technological and management approaches to reduce pollutant concentrations, emphasizing the importance of ecosystem-based solutions and modern bio-treatment technologies. The findings hold practical significance for modernizing water treatment system, informing future preventive measures for water resource protection, and promoting the adoption of biological treatment as a viable alternative to traditional methods.

Zhanat Bukharbayeva

Bolatkhan Zayadan

Gulzira Yernazarova

Lyailya Anuarova

Nurken Aimukhanov

Assiya Maimatayeva

Development of Technology for Biological Treatment of Wastewater Contaminated with Oil and Oil Products Using Aquatic Plants and Algae

利用水生植物和藻类处理含油和油类污染物的废水技术的发展

ISSN	2382-6436, 2424-9092
h-index	11

涉及主题	生物化学有机化学地质学生态学遗传学生物化学物理古生物学工程类细菌基因材料科学环境科学环境化学量子力学微生物学植物医学冶金计算机科学
出版信息	出版商: Urban Development Scientific Publishing Pte. Ltd.，出版周期: ，期刊类型: journal，开源期刊: 否
基本数据	创刊年份: 2016，原创研究文献占比: 0.00%，自引率:N.A.， Gold OA占比: 0.00%

Applied Environmental Biotechnology

期刊引文格式

有 1 位以上作者的期刊

有 2 位作者的期刊

有 3 位作者的期刊

有 5 位以上作者的期刊

书籍引用格式

学位论文引用格式

网页引用格式

专利引用格式

手工熬夜修改参考文献？研飞自动匹配期刊，一键轻松成稿，支持 Word/WPS

投稿经验分享

Identifying prospective water plants for reducing nutrients and total coliform in sub-surface constructed wetlands with limited oxygen

Characterization and performance of a new lipopeptide biosurfactant producing strain Bacillus Subtilis R1-2

Bio-detoxification of mycotoxin-contaminated feedstuffs: Using lactic acid bacteria and yeast

Recent advancements in pesticide mitigation using engineered Escherichia coli strains

Development of Technology for Biological Treatment of Wastewater Contaminated with Oil and Oil Products Using Aquatic Plants and Algae

Identifying prospective water plants for reducing nutrients and total coliform in sub-surface constructed wetlands with limited oxygen

Characterization and performance of a new lipopeptide biosurfactant producing strain Bacillus Subtilis R1-2

Bio-detoxification of mycotoxin-contaminated feedstuffs: Using lactic acid bacteria and yeast

Recent advancements in pesticide mitigation using engineered Escherichia coli strains

Development of Technology for Biological Treatment of Wastewater Contaminated with Oil and Oil Products Using Aquatic Plants and Algae