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Alice Ferreira, Paula Marques, Belina Ribeiro, Paula Assemany, Henrique Vieira de Mendonça, Ana Barata, Ana Cristina Oliveira, Alberto Reis, Helena M Pinheiro, Luisa Gouveia
The ability of microalgae to grow in nutrient-rich environments and to accumulate nutrients from wastewaters (WW) makes them attractive for the sustainable and low-cost treatment of WW. The valuable biomass produced can be further used for the generation of bioenergy, animal feed, fertilizers, and biopolymers, among others. In this study, Scenedesmus obliquus was able to remove nutrients from different wastewaters (poultry, swine and cattle breeding, brewery and dairy industries, and urban) with removal ranges of 95-100% for nitrogen, 63-99% for phosphorus and 48-70% for chemical oxygen demand...
February 20, 2018: Environmental Research
Marion E Fraunhofer, Frank Jakob, Rudi F Vogel
We wanted to identify key factors influencing the extent of β-glucan production by Lactobacillus brevis TMW 1.2112, which has been isolated from viscous, spoiled beer and which could contribute to viscosity increases of spoiled beverages via exopolysaccharide (EPS) production. In this way, we analyzed the influence of different initial pH values and carbohydrate sources on growth of and slime/β-glucan formation by this strain. In a screening of 48 carbohydrates, 14 fermentable sugars which enabled growth were identified...
February 13, 2018: Current Microbiology
Haifeng Lu, Shan Dong, Guangming Zhang, Ting Han, Yuanhui Zhang, Baoming Li
Photosynthetic bacteria (PSB) wastewater treatment technology can simultaneously realize wastewater purification and biomass production. The produced biomass contains high value-added products, which can be used in medical and agricultural industry. However, because of the small size and high electronegativity, PSB are hard to be collected from wastewater, which hampers the commercialization of PSB-based industrial processes. Auto-flocculation is a low cost, energy saving, non-toxic biomass collection method for microbiology...
February 9, 2018: Environmental Technology
Chojniak Joanna, Libera Marcin, Król Ewa, Płaza Grażyna
The present study focused on the evaluation of a nonspecific synergistic effect of biogenic silver nanoparticles (AgNPs) in combination with biosurfactants against environmental bacteria and fungi. The AgNPs were synthesized in the culture supernatants of the biosurfactant producer Bacillus subtilis grown in brewery effluent, molasses or Luria-Bertani media. Antibacterial activities were tested against Gram-positive and Gram-negative bacteria, while the antifungal activity was tested against phytopathogens...
February 6, 2018: Ecotoxicology
Vishal Kumar, Arun Kumar Dangi, Pratyoosh Shukla
Xylanases are one of the important hydrolytic enzymes which hydrolyze the β-1, 4 xylosidic linkage of the backbone of the xylan polymeric chain which consists of xylose subunits. Xylanases are mainly found in plant cell walls and are produced by several kinds of microorganisms such as fungi, bacteria, yeast, and some protozoans. The fungi are considered as most potent xylanase producers than that of yeast and bacteria. There is a broad series of industrial applications for the thermostable xylanase as an industrial enzyme...
January 29, 2018: Molecular Biotechnology
Rupa Salian, Suhas Wani, Ramamohan Reddy, Mukund Patil
Brewing industry releases large quantities of wastewater after product generation. Brewery wastewater contains organic compounds which are biodegradable in nature. These biodegradable wastes can be recycled and reused and hence considered as suitable products for agriculture. But before using wastewater for agriculture, it is better to evaluate the phytotoxic effects of wastewater on crops. Hence, the main objective of this study is to evaluate the effects of brewery effluent on seed germination and growth parameters of selected crop species like chickpea (Cicer arietinum), maize (Zea mays), and pigeon pea (Cajanus cajan)...
January 17, 2018: Environmental Science and Pollution Research International
Tingting Liu, Fei Luo, Zhenyao Wang, Yuqin Li
Brewery effluent (BE) as an appreciable and sustainable resource presented new possibilities in low-cost algal biomass production, whereas the relatively low essential macronutrients hindered extensive applications as growth medium for microalgae cultivation. The objective of this study was to investigate the feasibility of an integrated treatment strategy initiated by BE coupling phytohormones in augmenting biomass and lipid accumulation in Coccomyxa subellipsoidea. Results revealed that BE coupling synthetic 1-naphthaleneacetic acid (NAA) accomplished the favorable lipid productivity of 481...
January 12, 2018: World Journal of Microbiology & Biotechnology
Paula Assemany, Isabel de Paula Marques, Maria Lúcia Calijuri, Teresa Lopes da Silva, Alberto Reis
This study evaluated the operation of a hybrid anaerobic reactor fed with algal biomass cultivated in effluent from the brewery industry. Three stages of operation were distinguished during the 72 days of semi-continuous functioning of the reactor: Stage 1 (S1), in which algal biomass was used as substrate; Stage 2 (S2), in which 10% (v/v) of the algal biomass was substituted by olive mill wastewater (OMW); and Stage 3 (S3), in which algal biomass was heat pre-treated. During S1, a loss of solids was observed, with an increment of organic matter in the outlet...
January 4, 2018: Journal of Environmental Management
Katarzyna Paraszkiewicz, Przemysław Bernat, Anna Kuśmierska, Joanna Chojniak, Grażyna Płaza
The aim of the study was to identify and characterize lipopeptide (LP) biosurfactants produced by two Bacillus subtilis strains (KP7 and I'-1a) grown on various media prepared from renewable natural resources: two different brewery wastewaters (BW#4 and BW#6), 2% beet molasses (M), apple peels extract (APE) supplemented with 0.25% of yeast extract (YE) or 0.25% peptone (P), and similarly supplemented carrot peels extract (CPE). In all used media both strains retained their individual LP production signature characterized by surfactin and iturin overproduction exhibited by KP7 and I'-1a strain, respectively...
December 21, 2017: Journal of Environmental Management
Fan Meng, Anqi Yang, Hangyao Wang, Guangming Zhang, Xuemei Li, Yi Zhang, Zhiguo Zou
In order to achieve simple pollutant removal and simultaneous resource recovery in high-COD-non-toxic wastewater treatment, a one-step photosynthetic bacteria (PSB) method was established using batch study experiment. The effluent COD met the national discharge standard, and biomass with rich protein and high-value substances was efficiently produced. It eliminated the demand of post-treatment for conventional PSB treatment. Results showed that Rhodopseudomonas effectively treated brewery wastewater and achieved biomass proliferation...
December 6, 2017: Bioresource Technology
Jin Young Choi, Kebede Taye Desta, Soo Jung Lee, Yun-Hi Kim, Sung Chul Shin, Gon-Sup Kim, Sung Joong Lee, Jae-Han Shim, Ahmet Hacımüftüo, A M Abd El-Aty
Polyphenols from ethyl acetate extracts from the leaves, stems, and roots of Korean Humulus japonicus were comprehensively profiled using liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS). A total of 36 polyphenols were detected, of which 26 were structurally characterized based on their [M-H]- peak, MS/MS fragmentation pattern, UV-Vis absorption, and published data. Validation data provided satisfactory results for the evaluated parameters. The determination coefficients (R2 ) exceeded or equal to 0...
December 14, 2017: Biomedical Chromatography: BMC
Anastasios Perimenis, Thomas Nicolay, Matthieu Leclercq, Patrick A Gerin
The methanogenic and acidogenic potentials of six different agroindustrial residues, i.e. of fruit pulps and brewery residues, were determined. For all substrates, the methanogenic conversion yield was systematically higher than the acidogenic one in Chemical Oxygen Demand (COD) terms, ranging from 0.46 to 0.87 gCOD_CH4/gCOD_substrate_fed and from 0.24 to 0.56 gCOD_tVFA/gCOD_substrate_fed, respectively. During methanogenic conversion, brewery trub exhibited the highest methane potential (304mlCH4/gCOD_substrate)...
November 24, 2017: Waste Management
Renata Corrêa de Carvalho, Thiago Rocha Dos Santos Mathias, Annibal Duarte Pereira Netto, Flávia Ferreira de Carvalho Marques
The direct and simultaneous determination of cysteine, histidine, phenylalanine, lysine, tryptophan and arginine in brewery worts by capillary zone electrophoresis (CZE) was applied to evaluate the effects of temperature control and protease supplementation during mashing on the changes of these amino acids (AAs) wort composition. A cation exchange resin was used for AAs extraction from wort samples prior to CZE determination. The separation was achieved using a 50 mmol L-1 phosphate buffer at pH 12.5, containing 0...
December 12, 2017: Electrophoresis
E Zinabu, P Kelderman, J van der Kwast, K Irvine
Kombolcha, a city in Ethiopia, exemplifies the challenges and problems of the sub-Saharan countries where industrialization is growing fast but monitoring resources are poor and information on pollution unknown. This study monitored metals Cr, Cu, Zn, and Pb concentrations in five factories' effluents, and in the effluent mixing zones of two rivers receiving discharges during the rainy seasons of 2013 and 2014. The results indicate that median concentrations of Cr in the tannery effluents and Zn in the steel processing effluents were as high as 26,600 and 155,750 µg/L, respectively, much exceeding both the USEPA and Ethiopian emission guidelines...
December 9, 2017: Environmental Management
Gabriela Mafra, Anderson Luiz Oenning, Adriana Neves Dias, Josias Merib, Dilma Budziak, Cristian Berto da Silveira, Eduardo Carasek
In this study, a novel apparatus for bar adsorptive microextraction (BAµE) using a voltage regulator was proposed as an alternative tool to improve the analysis throughput. In addition, recycled diatomaceous earth obtained as a brewery residue was employed as a biosorbent coating for the determination of methyl paraben, ethyl paraben, benzophenone and triclocarban in water samples by high-performance liquid chromatography-diode array detection (HPLC-DAD). The use of the extraction devices, comprised of floating adsorptive bars of 7...
February 1, 2018: Talanta
Lucia Gharwalova, Karel Sigler, Jana Dolezalova, Jan Masak, Tomas Rezanka, Irena Kolouchova
Mid-exponential cultures of two traditional biotechnological yeast species, winery Saccharomyces cerevisiae and the less ethanol tolerant bottom-fermenting brewery Saccharomyces pastorianus, were exposed to different concentrations of added ethanol (3, 5 and 8%) The degree of ethanol-induced cell stress was assessed by measuring the cellular activity of superoxide dismutase (SOD), level of lipid peroxidation products, changes in cell lipid content and fatty acid profile. The resveratrol as an antioxidant was found to decrease the ethanol-induced rise of SOD activity and suppress the ethanol-induced decrease in cell lipids...
November 3, 2017: World Journal of Microbiology & Biotechnology
Sampa Maiti, Gorka Gallastegui, Gayatri Suresh, Saurabh Jyoti Sarma, Satinder Kaur Brar, Patrick Drogui, Yann LeBihan, Gerardo Buelna, Mausam Verma, Carlos Ricardo Soccol
Brewery industry liquid waste (BLW), brewery spent grain (BSG), apple pomace solid wastes (APS), apple pomace ultrafiltration sludge (APUS) and starch industry wastewater (SIW) have been considered as substrates to produce biobutanol. Efficiency of hydrolysis techniques tested to produce fermentable sugars depended on nature of agro-industrial wastes and process conditions. Acid-catalysed hydrolysis of BLW and BSG gave a total reducing sugar yield of 0.433 g/g and 0.468 g/g respectively. Reducing sugar yield from microwave assisted hydrothermal method was 0...
October 5, 2017: Bioresource Technology
Hongli Zheng, Mingzhi Liu, Qian Lu, Xiaodan Wu, Yiwei Ma, Yanling Cheng, Min Addy, Yuhuan Liu, Roger Ruan
To improve nutrients removal from wastewaters and enhance algal biomass production, piggery wastewater was mixed with brewery wastewaters. The results showed that it was a promising way to cultivate microalga in piggery and brewery wastewaters by balancing the carbon/nitrogen ratio. The optimal treatment condition for the mixed piggery-brewery wastewater using microalga was piggery wastewater mixed with brewery packaging wastewater by 1:5 at pH 7.0, resulting in carbon/nitrogen ratio of 7.9, with the biomass concentration of 2...
October 16, 2017: Bioresource Technology
David C Pavlacky, Paul M Lukacs, Jennifer A Blakesley, Robert C Skorkowsky, David S Klute, Beth A Hahn, Victoria J Dreitz, T Luke George, David J Hanni
Monitoring is an essential component of wildlife management and conservation. However, the usefulness of monitoring data is often undermined by the lack of 1) coordination across organizations and regions, 2) meaningful management and conservation objectives, and 3) rigorous sampling designs. Although many improvements to avian monitoring have been discussed, the recommendations have been slow to emerge in large-scale programs. We introduce the Integrated Monitoring in Bird Conservation Regions (IMBCR) program designed to overcome the above limitations...
2017: PloS One
Björn Becker, Manfred J Schmitt
The initial discovery of killer toxin-secreting brewery strains of Saccharomyces cerevisiae (S. cerevisiae) in the mid-sixties of the last century marked the beginning of intensive research in the yeast virology field. So far, four different S. cerevisiae killer toxins (K28, K1, K2, and Klus), encoded by cytoplasmic inherited double-stranded RNA viruses (dsRNA) of the Totiviridae family, have been identified. Among these, K28 represents the unique example of a yeast viral killer toxin that enters a sensitive cell by receptor-mediated endocytosis to reach its intracellular target(s)...
October 20, 2017: Toxins
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