Article
Biology
Saniya Aktayeva, Kairat Baltin, Assel Kiribayeva, Zhiger Akishev, Dmitriy Silayev, Yerlan Ramankulov, Bekbolat Khassenov
Summary: This study described the keratinolytic properties of a strain of Bacillus isolated from sites of feather waste accumulation. The strain, Bacillus sp. A5.3, secretes serine proteases that are alkaline enzymes with wide substrate specificity and high thermal stability. It effectively hydrolyzes feathers and can be used in feather-processing technologies and as a source of proteases and keratinases.
Article
Biotechnology & Applied Microbiology
Yitayal Addis Alemayehu, Seyoum Leta Asfaw, Tadesse Alemu Terfie
Summary: This study examines the effects of human urine and coffee processing wastewater on coffee pulp composting. The results show that supplementing with urine and wastewater can improve the decomposition of coffee pulp and increase the quality and productivity of the compost.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Biotechnology & Applied Microbiology
Ying Zhang, Jingmin Hu, Qing Zhang, Dongbo Cai, Shouwen Chen, Yonghong Wang
Summary: In this study, optimal culture conditions for the production of alkaline protease by recombinant Bacillus licheniformis were determined using single-factor experiments and response surface methodology (RSM). The highest enzyme activity achieved was 15,435.1 U/mL, which was increased by 82% compared to the initial fermentation medium. Further optimization of the culture medium led to an enzyme activity of 39,233.6 U/mL. This study provides important insights for large-scale production of alkaline protease.
BIORESOURCES AND BIOPROCESSING
(2023)
Article
Food Science & Technology
Joel Ching Jue Wong, Elexson Nillian
Summary: This study investigated the impacts of optimization of microwave-assisted extraction (MAE) on the extraction of bioactive compounds from Sarawak Liberica sp. coffee pulp. The findings revealed the optimal extraction conditions and showed that MAE outperformed conventional maceration extraction in terms of extraction efficiency. The study contributes to the development of functional products using coffee waste and helps reduce environmental pollution.
FOOD SCIENCE & NUTRITION
(2023)
Article
Biotechnology & Applied Microbiology
Devi Jayakumar, Sunish Kadayil Sachith, Vinod Kumar Nathan, Kalappurakkal Saidu Muhammed Rishad
Summary: This study isolated a bacterium with high alkaline protease activity and optimized its production conditions using Response Surface Methodology. The obtained alkaline protease showed stability and high stain removal efficiency under different conditions, making it suitable for detergent formulations.
BIOTECHNOLOGY LETTERS
(2021)
Article
Multidisciplinary Sciences
Zahoor Khan, Maryam Shafique, Nusrat Jabeen, Sehar Afshan Naz, Kousar Yasmeen, Uroosa Ejaz, Muhammad Sohail
Summary: This study investigated the potential of an alkaline serine protease from Bacillus subtilis as a bating agent in leather processing. The enzyme showed promising results in terms of increasing production and improving the quality of leather, while also being environmentally friendly. These findings provide a strong basis for the use of this protease as an efficient alternative in the leather tanneries.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2023)
Article
Food Science & Technology
J. A. Serna-Jimenez, L. S. Torres-Valenzuela, A. Sanin Villarreal, C. Roldan, M. A. Martin, J. A. Siles, A. F. Chica
Summary: Two methods of extracting caffeine and total polyphenols from coffee pulp waste were evaluated. The ultrasound-assisted extraction (USAE) method showed higher extraction performance and lower energy requirement, making it a promising alternative for extracting biocompounds from coffee pulp waste.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Ming-Yan Shen, Zong-Hao Huang, Yu-Ting Kuo, Jie Hsu, Han-Wen Yang, Chi-Yen Peng, Chen-Yeon Chu
Summary: This study investigated the hydrolysis and anaerobic biogas production processes. Subcritical water hydrolysis and chemical pretreatments were found to enhance hydrolysis efficiency and bioenergy conversion.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Ming-Yan Shen, Zong-Hao Huang, Yu-Ting Kuo, Jie Hsu, Han-Wen Yang, Chi-Yen Peng, Chen-Yeon Chu
Summary: This study investigated two steps of hydrolysis and anaerobic biogas production processes. Subcritical water hydrolysis and chemical pre-treatments were found to greatly enhance hydrolysis efficiency. The optimal biomethane yield was achieved through co-digestion of acid hydrolysate with pulp wastewater.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Plant Sciences
Alefsi David Sanchez-Reinoso, Edgar Alvaro Avila-Pedraza, Leonardo Lombardini, Hermann Restrepo-Diaz
Summary: A field experiment was conducted to investigate the effects of applying Biochar (BC) combined with chemical fertilization (CF) on coffee trees. The results showed that applying 8 or 16 t ha(-1) of BC reduced soil bulk density and increased soil aggregation status. The application of 16 t ha(-1) BC decreased exchangeable acidity by 60% and increased soil pH and organic carbon content. In both years, combining BC with 66% CF significantly increased soil respiration.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Biotechnology & Applied Microbiology
Pankaj Parab, Rakhee Khandeparker
Summary: The study demonstrates the significant potential of a xylanolytic enzyme consortium for environmentally friendly bio-bleaching of pulp, with particular effectiveness on hardwood and bagasse pulp while reducing hypochlorite consumption during chlorine treatment.
BIOPROCESS AND BIOSYSTEMS ENGINEERING
(2021)
Article
Microbiology
Martin Szotkowski, Jiri Holub, Samuel Simansky, Klara Hubacova, Dagmar Hladka, Andrea Nemcova, Ivana Marova
Summary: The transition from a linear model of economics to circular economics aims to reduce waste production. Research has shown that incorporating spent coffee grounds and waste fat/oil materials in waste substrates can enhance growth and production of beneficial metabolites by some Sporidiobolus yeasts.
Article
Chemistry, Physical
Hong-Ming Chen, Woon-Ming Lau, Dan Zhou
Summary: This study utilized activated carbon prepared from waste coffee as a low-cost adsorbent to remove Rhodamine B from aqueous solution. The waste coffee-derived activated carbon showed a layered and ordered hexagonal structure with a wrinkled and rough surface. It had a high specific surface area, appropriate pore distribution, and desired surface functional groups, which enhanced its adsorption properties.
Article
Food Science & Technology
Anurak Muangsanguan, Pichchapa Linsaenkart, Tanakarn Chaitep, Jiraporn Sangta, Sarana Rose Sommano, Korawan Sringarm, Chaiwat Arjin, Pornchai Rachtanapun, Kittisak Jantanasakulwong, Yuthana Phimolsiripol, Juan M. Castagnini, Warintorn Ruksiriwanich
Summary: This study utilized supercritical fluid extraction to obtain six coffee pulp extracts, with the SFE-4 extract showing the highest phenolic, flavonoid, and caffeine contents. This extract enhanced migration and cell proliferation in human hair follicle dermal papilla cells, and also exhibited scavenging effects on radicals and stimulation on certain genes, potentially aiding in hair loss prevention and promoting hair growth pathways.
Article
Multidisciplinary Sciences
Kasilingam Nagajothi, A. G. Murugesan
Summary: This study evaluates the potential of using groundnut shell hydrolysate as a feedstock for PHB biosynthesis by Azotobacter chroococcum MTCC 3853 under SMF conditions. Various treatments and hydrolysis methods were tested, resulting in significant sugar reduction and improved PHB yield. Optimization using the RSM-CCD method led to the highest PHB production and biomass, demonstrating the efficiency of this approach in utilizing agricultural waste and reducing production costs.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Analytical
Kandasamy Selvam
Summary: This article introduces a method of using agricultural waste to produce activated carbon for the purification of textile effluent. Activated carbon has the advantages of low cost, high efficiency, and environmental friendliness, making it a potential solution for effluent treatment.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Environmental Sciences
Gadissa Tokuma Gindaba, Hundessa Dessalegn Demsash, Mani Jayakumar
Summary: In this study, a novel surface-modified, wheat straw-supported magnetite nanoparticles were synthesized through a green synthesis method. The adsorption of mercury ions from aqueous solutions was investigated, and the optimum adsorption conditions and removal efficiency were determined. The results showed that the synthesized nano-adsorbent had excellent adsorption capability and potential application for Hg(II) removal from aqueous environments.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Review
Environmental Sciences
Sengani Manimegalai, Sundaram Vickram, Santhana Raj Deena, Karunakaran Rohini, Sundaram Thanigaivel, S. Manikandan, R. Subbaiya, N. Karmegam, Woong Kim, M. Govarthanan
Summary: This review discusses the current problems and future challenges in water treatments, focusing on integrated and single-treatment technologies for various drinking water resources. The treatment systems can remediate contaminants such as inorganic non-metallic matter, heavy metals, natural organic matter, endocrine-disrupting chemicals, disinfection by-products, and microbiological pollutants. The advancements in antibacterial and adsorption capabilities of carbon-based nanomaterials provide new options for excluding contaminants from drinking water. The review also addresses the barriers to using nanoparticles in long-term water treatment.
Review
Environmental Sciences
Sundaram Thanigaivel, Sundaram Vickram, Nibedita Dey, Palanivelu Jeyanthi, Ramasamy Subbaiya, Woong Kim, Muthusamy Govarthanan, Natchimuthu Karmegam
Summary: Anthropogenic toxins are discharged into the environment and distributed through various environmental matrices. Trace contaminant detection and analysis has advanced, and it is apparent that a wide range of pollutants can accumulate in the tissues of aquatic organisms, despite limited research on invertebrate exposure and accumulation.
Article
Microbiology
Senbagam Duraisamy, Aswathy Sathyan, Senthilkumar Balakrishnan, Prabhu Subramani, Chidhambaram Prahalathan, Anbarasu Kumarasamy
Summary: This study aims to explore novel lactic acid bacteria (LAB) from breast-fed infants' faeces and characterize their antimicrobial compound, bacteriocin. The LAB strain Lacticaseibacillus paracasei F9-02 showed strong antimicrobial activity against clinical pathogens. The purified bacteriocin exhibited stability under various conditions and had antimicrobial activity against multiple bacteria. This study provides valuable insights into the therapeutic potential of L. paracasei F9-02 bacteriocin.
ENVIRONMENTAL MICROBIOLOGY
(2023)
Review
Environmental Sciences
Sonam Tripathi, Diane Purchase, Muthusamy Govarthanan, Ram Chandra, Sangeeta Yadav
Summary: Quorum sensing is a bacterial system that allows cells to communicate with each other, and it is linked to cell density in the microbiome. Understanding the role of quorum sensing and developing novel approaches to control it is essential in preventing microbial pathogenesis. This review provides the latest knowledge on the relationship between quorum sensing and pathogenicity and explores the potential of quorum quenching as a control mechanism.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Environmental Sciences
Nagaraja Geetha, Channarayapatna Ramesh Sunilkumar, Gurulingaiah Bhavya, Boregowda Nandini, Padukana Abhijith, Praveen Satapute, Hunthrike Shekar Shetty, Muthusamy Govarthanan, Sudisha Jogaiah
Summary: The fungal symbiosis with plant root system is recognized as a way to enhance plant growth and defense against various stress conditions. The excessive use of chemical fertilizers has led to soil contamination. Using microbial consortium such as plant growth promoting fungi (PGPFs) is gaining importance worldwide. PGPFs exhibit multiple activities through promoting plant growth, inducing resistance, combating diseases, and detoxifying toxic chemicals. The key to these properties is the secretion of biomolecules by the fungi. This review focuses on the role of PGPFs in inducing systemic resistance and detoxifying heavy metals. Understanding the mechanism of PGPFs can contribute to developing sustainable agriculture by alleviating heavy metal stress in plants and soil.
ENVIRONMENTAL RESEARCH
(2023)
Review
Environmental Sciences
S. Chozhavendhan, G. Karthigadevi, B. Bharathiraja, R. Praveen Kumar, Lata Deso Abo, S. Venkatesa Prabhu, Ramalingam Balachandar, Mani Jayakumar
Summary: This review critically analyzes the biorefinery approaches on anaerobic digestion (AD) process for the production of biogas and digestate, and their direct and indirect utilization. Upgrading or transforming digestate into high valued products can enrich soil nutrients and ensure a safe environment.
ENVIRONMENTAL RESEARCH
(2023)
Article
Energy & Fuels
Fekadu Ashine, Zebene Kiflie, Sundramurthy Venkatesa Prabhu, Belachew Zegale Tizazu, Venkatramanan Varadharajan, Manivasagan Rajasimman, Sang-Woo Joo, Yasser Vasseghian, Mani Jayakumar
Summary: The present study optimized the process of biodiesel production from Argemone mexicana oil using calcium oxide as a catalyst derived from chicken eggshells. The catalyst was characterized and the parameters were optimized through response surface methodology, resulting in a high yield of biodiesel. Non-statistical techniques were used to analyze the optimal values, and the obtained biodiesel was characterized using spectroscopic techniques.
Review
Energy & Fuels
Nibedita Dey, Sundaram Vickram, S. Thanigaivel, S. Manikandan, R. Subbaiya, Natchimuthu Karmegam, Woong Kim, Muthusamy Govarthanan
Summary: Traditional fossil fuels have numerous harmful effects on humans and the environment. Fuel derived from microalgae is a healthier and more eco-friendly alternative due to its lower sulfur content. Nanoparticles can be used in conjunction with microalgae to improve fuel quality by affecting algal biomass and lipid composition. The cultivation mode, harvesting technique, and extraction procedure used will determine the quality and cost of the fuel. Nanoparticles can address nutritional deficiencies in growing microalgae and promote rapid nutrient absorption and lipid accumulation. Different nanoparticles have been found to have varying effects on microalgae growth and biomass quality. This review highlights the potential application of nanomaterials in enhancing microalgal growth and lipid accumulation, thereby improving the quality of the fuel produced by these strains.
Review
Environmental Sciences
Manish Kumar, Shashank Shekhar, Rakesh Kumar, Pawan Kumar, Muthusamy Govarthanan, Tushara Chaminda
Summary: This article summarizes the formation of various disinfection by-products (DBPs) during wastewater treatment and their treatment methods, discusses permissible limits and concentrations of DBPs in water systems globally, and their consequences on humans. It also critically reviews various remediation approaches and highlights the need for further advancements in detection and removal of hazardous DBPs before commercial-scale implementation.
ENVIRONMENTAL POLLUTION
(2023)
Review
Biochemistry & Molecular Biology
T. Angelin Swetha, V. Ananthi, Abhispa Bora, Nallathambi Sengottuvelan, Kumar Ponnuchamy, Govarthanan Muthusamy, A. Arun
Summary: Due to its low carbon footprint and environmental friendliness, polylactic acid (PLA) is widely produced as a bioplastic. To increase its usage, it needs to be produced at the lowest cost possible, utilizing food wastes rich in carbohydrates as raw materials. Efficient manufacturing methods and necessary separation processes with low production costs are crucial for meeting the growing demand for PLA.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Infectious Diseases
Arockia Doss Susai Backiam, Senbagam Duraisamy, Palaniyandi Karuppaiya, Senthilkumar Balakrishnan, Balaji Chandrasekaran, Anbarasu Kumarasamy, Amutha Raju
Summary: This study investigated the prevalence of multi-drug resistance and virulence factors among enterococcal isolates from different clinical specimens. The majority of the isolates were identified as Enterococcus faecalis and Enterococcus faecium. High-level resistance to benzylpenicillin and vancomycin was observed. The study also revealed the presence of multi-drug resistance among vancomycin-resistant enterococcal strains. The virulence factors associated with vancomycin resistance were determined.
Review
Environmental Sciences
Narendhar Chandrasekar, Alexander Pinky Steffi, Balaji Ramachandran, Michael Taeyoung Hwang, Vahid Faramarzi, Muthusamy Govarthanan
Summary: In recent years, there has been a growing interest in MXenes, which are newly proliferating two-dimensional materials. The synthesis of MXenes for biosensing systems has attracted attention due to their advantages and applications. The accurate discrimination of nucleotide mismatches is crucial for diagnosing and treating diseases, and several detection methods, particularly Electrochemical-luminescence (ECL) ones, have been investigated for this purpose.
ENVIRONMENTAL RESEARCH
(2023)
Review
Green & Sustainable Science & Technology
Sivasubramanian Manikandan, Radhakrishnan Yedhu Krishnan, Sundaram Vickram, Ramasamy Subbaiya, Woong Kim, Muthusamy Govarthanan, Natchimuthu Karmegam
Summary: Biogas is becoming an attractive renewable energy option due to its low pollution and cost compared to traditional fuels. Nanoparticles are receiving increasing attention as a way to enhance the efficiency of biogas processes. This review examines the potential use of nanoparticles in improving biogas yields and discusses the impact of immobilized nanoparticles on biogas production.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
