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1. Bioelectrofuel Synthesis by Nanoenzymes: Novel Alternatives to Conventional Enzymes

Author:
Singh, Lakhveer; Rana, Supriyanka; Thakur, Sveta; Pant, Deepak
Source:
Trends in biotechnology 2020 v.38 no.5 pp. 469-473
ISSN:
0167-7799
Subject:
microbial growth,   etc   ; active sites; catalysts; electrochemistry; electrodes; enzymes;     Show all 6 Subjects
Abstract:
... Recent bioinspired efforts of designing novel nanoenzyme-based electrocatalysts are driven by the urgency of making bioelectrofuels more affordable and efficient. Unlike natural enzymes, nanoenzyme-modified electrodes with large surface areas enclose numerous biomimicking active sites to facilitate enhanced microbial growth followed by increased reactant-to-bioelectrofuel conversion. ...
DOI:
10.1016/j.tibtech.2019.12.017

2. Recent advances in mitigating membrane biofouling using carbon-based materials

Author:
Wu, Yichao; Xia, Yinfeng; Jing, Xinxin; Cai, Peng; Igalavithana, Avanthi Deshani; Tang, Chuyang; Tsang, Daniel C.W.; Ok, Yong Sik
Source:
Journal of hazardous materials 2020 v.382 pp. 120976
ISSN:
0304-3894
Subject:
microbial growth,   etc   ; biofouling; carbon nanotubes; energy; graphene; permeability;     Show all 6 Subjects
Abstract:
... Biofouling is the Achilles Heel of membrane processes. The accumulation of organic foulants and growth of microorganisms on the membrane surface reduce the permeability, shorten the membrane life, and increase the energy consumption. Advancements in novel carbon-based materials (CBMs) present significant opportunities in mitigating biofouling of membrane processes. This article provides a comprehe ...
DOI:
10.1016/j.jhazmat.2019.120976

3. Microcosm evaluation of bioaugmentation and biostimulation efficacy on diesel‐contaminated soil

Author:
Bosco, Francesca; Casale, Annalisa; Mazzarino, Italo; Godio, Alberto; Ruffino, Barbara; Mollea, Chiara; Chiampo, Fulvia
Source:
Journal of chemical technology and biotechnology 2020 v.95 no.4 pp. 904-912
ISSN:
0268-2575
Subject:
microbial growth,   etc   ; bioaugmentation; biodegradation; biomass; cost effectiveness; diesel fuel; glucose; polluted soils; soil ecology;     Show all 9 Subjects
Abstract:
... BACKGROUND: Diesel oil broad utilization has led to its dispersion in the environment. In this work, biostimulation and biostimulation coupled with autochthonous bioaugmentation were investigated for the bioremediation of soil artificially contaminated with diesel oil. RESULTS: Soil microcosms were prepared and monitored. The most effective strategy and the influence of glucose addition, both in s ...
DOI:
10.1002/jctb.5966

4. Dual Mode Rapid Plasmonic Detections of Chemical Disinfectants (CMIT/MIT) Using Target-Mediated Selective Aggregation of Gold Nanoparticles

Author:
Kang, Tae Ho; Jin, Chang Min; Lee, Seungki; Choi, Inhee
Source:
Analytical chemistry 2020 v.92 no.6 pp. 4201-4208
ISSN:
1520-6882
Subject:
microbial growth,   etc   ; breathing; colorimetry; disinfectants; high-throughput screening methods; humidifiers; ingredients; nanogold; risk; spectroscopy;     Show all 10 Subjects
Abstract:
... Chemical disinfectants such as 5-chloro-2-methylisothiazol-3(2H)-one/2-methyl-4-isothiazolin-3-one (CMIT/MIT) have been widely used in commercial products and humidifiers to prevent the growth of microorganisms. However, as continuous inhalation of CMIT/MIT is a fatal health risk, the concentration of its commercially available form is strictly regulated. Nonetheless, there are limited reports on ...
DOI:
10.1021/acs.analchem.9b04081

5. Ultrasound: beneficial biotechnological aspects on microorganisms-mediated processes

Author:
Pagnossa, Jorge Pamplona; Rocchetti, Gabriele; Ribeiro, Ana Cristina; Piccoli, Roberta Hilsdorf; Lucini, Luigi
Source:
Current opinion in food science 2020 v.31 pp. 24-30
ISSN:
2214-7993
Subject:
microbial growth,   etc   ; biotechnology; enzyme activity; fermentation; food processing; foods; heat treatment; monitoring; spoilage; ultrasonics;     Show all 10 Subjects
Abstract:
... Ultrasound has been employed in a wide range of processes as related to biotechnology, fermentation and food processing. In this regard, the use of ultrasound represents an emerging technology able to minimize processing and positively impact on both microbial safety and quality of different food products. According to the frequency and intensity used, ultrasound has been proposed for monitoring f ...
DOI:
10.1016/j.cofs.2019.10.006

6. Characterization of biofilm distribution in hollow fiber membranes using Compressed Sensing Magnetic Resonance Imaging

Author:
Simkins, J.W.; Schuhmann, S.; Guthausen, G.; Heijnen, M.; Codd, S.L.; Seymour, J.D.
Source:
Journal of membrane science 2020 v.594 pp. 117437
ISSN:
0376-7388
Subject:
microbial growth,   etc   ; artificial membranes; biofilm; biofouling; image analysis; magnetic resonance imaging; permeability; ultrafiltration;     Show all 8 Subjects
Abstract:
... Biofilm formation during ultrafiltration membrane operation was investigated by Compressed Sensing Magnetic Resonance Imaging (MRI), with tryptic soy broth included in the feed stream to stimulate microbial growth. Biofilm development was visualized as growing layer characterized by reduced T₁ relaxation time, and its progression as monitored by MRI was compared with classical integral filtration ...
DOI:
10.1016/j.memsci.2019.117437

7. Thrombolitic clots dominated by filamentous cyanobacteria and crusts of radio-fibrous calcite in the Furongian Changshan Formation, North China

Author:
Mei, Mingxiang; Latif, Khalid; Mei, Chaojia; Gao, Jinhan; Meng, Qingfen
Source:
Sedimentary geology 2020 v.395 pp. 105540
ISSN:
0037-0738
Subject:
microbial growth,   etc   ; Cyanobacteria; biofilm; calcification; calcite; carbonates; dolomite; fossils; photosynthesis; polymers; pyrite; China;     Show all 12 Subjects
Abstract:
... As a variety of non-laminated microbial carbonate or calcified microbialite, thrombolites commonly comprise diffusely clotted micrites as their basic structural unit. The current study is aimed at discussing the composition and forming mechanism of thrombolitic clots, which most likely represent the product formed by calcification of extracellular polymeric substances. It provides instances of sop ...
DOI:
10.1016/j.sedgeo.2019.105540

8. Development of an easy-to-use colorimetric pH label with starch and carrot anthocyanins for milk shelf life assessment

Author:
Moazami Goodarzi, Mohsen; Moradi, Mehran; Tajik, Hossein; Forough, Mehrdad; Ezati, Parya; Kuswandi, Bambang
Source:
International journal of biological macromolecules 2020 v.153 pp. 240-247
ISSN:
0141-8130
Subject:
microbial growth,   etc   ; acidity; anthocyanins; biopolymers; carrots; colorimetry; freshness; milk; pH; pasteurized milk; shelf life; spoilage; starch; temperature; water solubility;     Show all 15 Subjects
Abstract:
... An intelligent freshness indicator was developed by immobilizing anthocyanins of black carrot (ABC) within the starch matrix (total anthocyanins content of 10 mg/100 mL) to monitor freshness/spoilage of milk. The microstructural, spectral, swelling and solubility properties as well as color stability (as a function of time, temperature and light) of the indicator at different pHs were characterize ...
DOI:
10.1016/j.ijbiomac.2020.03.014

9. A review of wine fermentation process modeling

Author:
Miller, Konrad V.; Block, David E.
Source:
Journal of food engineering 2020 v.273 pp. 109783
ISSN:
0260-8774
Subject:
microbial growth,   etc   ; ethanol; fermentation; fermenters; genome; heat transfer; mixing; physical models; red wines; spatial variation; temperature; winemaking; yeasts;     Show all 13 Subjects
Abstract:
... In this work, we review attempts to quantify and model the wine fermentation process. The first part of this review examines yeast fermentation kinetics, from early models of microbial growth to modern genome scale metabolic models. The second part of this review covers physical models of wine fermentors: heat transfer in fermentors, natural convective mixing during fermentation, studies of temper ...
DOI:
10.1016/j.jfoodeng.2019.109783

10. One-step steam pyrolysis for the production of mesoporous biochar from oil palm frond to effectively remove phenol in facultatively treated palm oil mill effluent

Author:
Lawal, Abubakar Abdullahi; Hassan, Mohd Ali; Ahmad Farid, Mohamed Abdillah; Yasim-Anuar, Tengku Arisyah Tengku; Mohd Yusoff, Mohd Zulkhairi; Zakaria, Mohd Rafein; Roslan, Ahmad Muhaimin; Mokhtar, Mohd Noriznan; Shirai, Yoshihito
Source:
Environmental technology & innovation 2020 v.18 pp. 100730
ISSN:
2352-1864
Subject:
microbial growth,   etc   ; Elaeis guineensis; adsorbents; adsorption; biochar; nanopores; nitrogen; oil mill effluents; phenol; porous media; pyrolysis; steam; surface area;     Show all 13 Subjects
Abstract:
... Conventional aerobic treatment of facultatively treated palm oil mill effluent (POME) containing phenolic compounds such as phenol, encounters difficulty because of microbial inhibition. In this study, adsorption of phenol in facultatively treated POME was proposed as a solution for mitigating the inhibition. Low-cost biochars produced from oil palm frond using nitrogen or steam pyrolysis at 600 ° ...
DOI:
10.1016/j.eti.2020.100730

11. Poly(L-lactide)-Degrading Enzyme Production by Laceyella sacchari LP175 Under Solid State Fermentation Using Low Cost Agricultural Crops and Its Hydrolysis of Poly(L-lactide) Film

Author:
Lomthong, Thanasak; Yoksan, Rangrong; Lumyong, Saisamorn; Kitpreechavanich, Vichien
Source:
Waste and biomass valorization 2020 v.11 no.5 pp. 1961-1970
ISSN:
1877-2641
Subject:
microbial growth,   etc   ; biodegradation; bioplastics; bioreactors; cassava; corn cobs; enzymes; hydrolysis; nutrients; peptones; polylactic acid; solid state fermentation; soybean meal; wastes;     Show all 14 Subjects
Abstract:
... PURPOSE: The aim of this study was to investigate the enhancement of poly(L-lactide) (PLLA)-degrading enzyme production by Laceyella sacchari LP175 under solid state fermentation (SSF) using low-cost agricultural crops as substrates and its hydrolysis of poly(L-lactide) film. METHODS: Cassava chip, soybean meal and corncob were used to investigate the enzyme production using a statistical mixture ...
DOI:
10.1007/s12649-018-0519-z

12. Synthesis of metallic copper modified g-C3N4 by molecular self-assembly structure and its combined catalytic performance with activated sludge

Author:
Hou, Feng; Liu, Jianan; Zhang, Yanhong; Zhao, Chen; Xiao, Xudong; Zou, Jinlong; Li, Qi; Hu, Shan; Wang, Hong; Jiang, Baojiang
Source:
Journal of hazardous materials 2020 v.388 pp. 121754
ISSN:
0304-3894
Subject:
microbial growth,   etc   ; activated sludge; active sites; biocompatibility; carbon nitride; copper; enzyme activity; enzymes; lighting; nitrobenzenes; photocatalysis; pollutants; polymerization; temperature;     Show all 14 Subjects
Abstract:
... Copper modified carbon nitride (CuCN) was prepared by a hydrothermal self-assembly reaction and following high temperature thermal polymerization process. Finally, the sample exhibits uniform one-dimensional tubular structure. Interestingly, the separation efficiency of electron-hole pair is improved, and more catalytic active sites are exposed due to the special hollow structure. Meanwhile, the p ...
DOI:
10.1016/j.jhazmat.2019.121754

13. Distinct patterns of microbial metabolic fingerprints in sows and their offspring: a pilot study

Author:
Grześkowiak, Łukasz; Teske, Jasmin; Zentek, Jürgen; Vahjen, Wilfried
Source:
Archives of microbiology 2020 v.202 no.3 pp. 511-517
ISSN:
0302-8933
Subject:
microbial growth,   etc   ; carbohydrates; digesta; hindgut; intestines; lactation; metabolism; microbial communities; microorganisms; perinatal period; piglets; pregnancy; progeny; sows; suckling; weaning;     Show all 16 Subjects
Abstract:
... Microbial metabolism and growth in the intestinal tract depend on the composition of substrates present in the digesta and their ability to be metabolised by the microorganisms. The aim of this pilot study was to characterise potential hindgut microbial activity during perinatal period in sows and their offspring. Rectal samples from three sows (1–3 weeks before and after birth) and three of their ...
DOI:
10.1007/s00203-019-01766-1

14. Is EU regulation on the use of antioxidants in meat preparation and in meat products still cutting edge?

Author:
Cenci-Goga, Beniamino T.; Karama, Musafiri; Hadjichralambous, Chrystalleni; Sechi, Paola; Grispoldi, Luca
Source:
European food research & technology 2020 v.246 no.4 pp. 661-668
ISSN:
1438-2377
Subject:
microbial growth,   etc   ; European Union; antioxidants; business enterprises; color; food additives; food law; food safety; meat; nutrient content; odors;     Show all 11 Subjects
Abstract:
... The use of antioxidants in meat preparation and meat products is highly debated. Regulations define the use of antioxidants mostly in terms of the age-old subdivision between meat preparations and meat products. Best practices are not well represented in regulations. Antioxidants for foodstuffs during processing or before packing protect colour, aroma and nutrient content. As regards food safety r ...
DOI:
10.1007/s00217-020-03433-y

15. Renewable methanol and formate as microbial feedstocks

Author:
Cotton, Charles AR; Claassens, Nico J; Benito-Vaquerizo, Sara; Bar-Even, Arren
Source:
Current opinion in biotechnology 2020 v.62 pp. 168-180
ISSN:
0958-1669
Subject:
microbial growth,   etc   ; acetogens; bioprocessing; carbon; carbon dioxide; carbon monoxide; feedstocks; formates; hydrogen; methanol; renewable energy sources; toxicity;     Show all 12 Subjects
Abstract:
... Methanol and formate are attractive microbial feedstocks as they can be sustainably produced from CO₂ and renewable energy, are completely miscible, and are easy to store and transport. Here, we provide a biochemical perspective on microbial growth and bioproduction using these compounds. We show that anaerobic growth of acetogens on methanol and formate is more efficient than on H₂/CO₂ or CO. We ...
DOI:
10.1016/j.copbio.2019.10.002

16. Distinct regulation of microbial processes in the immobilization of labile carbon in different soils

Author:
Wang, Xinxin; Zhang, Wei; Zhou, Feng; Liu, Yan; He, Hongbo; Zhang, Xudong
Source:
Soil biology & biochemistry 2020 v.142 pp. 107723
ISSN:
0038-0717
Subject:
microbial growth,   etc   ; Mollisols; Ultisols; amino sugars; carbon sequestration; glucose; isotope labeling; labile carbon; mortality; phospholipid fatty acids; stable isotopes; starvation;     Show all 12 Subjects
Abstract:
... A process-based understanding of soil carbon (C) sequestration and stabilization has not been precisely characterized due to the lacking of linkage between microbial proliferation and mortality. In this study, stable isotope probing of phospholipid fatty acids and amino sugars were used to determine the microbial responses and microbial residue retention in two soils (Mollisol and Ultisol) with ¹³ ...
DOI:
10.1016/j.soilbio.2020.107723

17. The emerging role of metallic nanoparticles in food

Author:
dos Santos, Carolina Alves; Ingle, Avinash P.; Rai, Mahendra
Source:
Applied microbiology and biotechnology 2020 v.104 no.6 pp. 2373-2383
ISSN:
0175-7598
Subject:
microbial growth,   etc   ; antimicrobial properties; biopolymers; chemical pollutants; food packaging; food preservation; foods; lifestyle; nanoparticles; pesticides; risk assessment; shelf life;     Show all 12 Subjects
Abstract:
... Nanotechnology is widely used in biomedical applications, engineering sciences, and food technology. The application of nanocompounds play a pivotal role in food protection, preservation, and increasing its shelf life. The changing lifestyle, use of pesticides, and biological and/or chemical contaminants present in food directly affect its quality. Metallic nanoparticles (MNPs) are useful to devel ...
DOI:
10.1007/s00253-020-10372-x

18. Soil Amendments with Lignocellulosic Residues of Biorefinery Processes Affect Soil Organic Matter Accumulation and Microbial Growth

Author:
Savy, Davide; Mercl, Filip; Cozzolino, Vincenza; Spaccini, Riccardo; Cangemi, Silvana; Piccolo, Alessandro
Source:
ACS sustainable chemistry & engineering 2020 v.8 no.8 pp. 3381-3391
ISSN:
2168-0485
Subject:
microbial growth,   etc   ; biorefining; hydrophobicity; lignocellulose; microbial communities; microorganisms; mineralization; soil; soil amendments; soil biota; soil organic matter;     Show all 11 Subjects
Abstract:
... The development of soil microbiota and the chemical composition of soil organic matter (SOM) were studied in a 180 day incubation experiment upon addition of a characterized lignocellulosic biorefinery residue (BYP) at two different rates. The microbial growth was studied by PLFA analysis after 30, 60, and 180 days, while SOM molecular composition was assessed by thermochemolysis at the end of the ...
DOI:
10.1021/acssuschemeng.9b07474

19. Carbon cloth enhances treatment of high-strength brewery wastewater in anaerobic dynamic membrane bioreactors

Author:
Jia, Ruixue; Sun, Dezhi; Dang, Yan; Meier, David; Holmes, Dawn E.; Smith, Jessica A.
Source:
Bioresource technology 2020 v.298 pp. 122547
ISSN:
0960-8524
Subject:
microbial growth,   etc   ; Geobacter; carbon; chemical oxygen demand; electron transfer; electrons; membrane bioreactors; microorganisms; organic matter; polyesters; wastewater; wastewater treatment;     Show all 12 Subjects
Abstract:
... Anaerobic dynamic membrane bioreactors (AnDMBRs) can improve the efficiency of organic matter removal during wastewater treatment at a low cost. However, application of AnDMBRs for treatment of high-strength wastewater is usually unsuccessful. This study investigated whether use of conductive carbon cloth as the supporting material in an AnDMBR permits higher organic loading rates for treatment of ...
DOI:
10.1016/j.biortech.2019.122547

20. Influence of homopolysaccharide‐producing lactic acid bacteria on the spreadability of raw fermented sausages (onion mettwurst)

Author:
Hilbig, Jonas; Hildebrandt, Lisa; Herrmann, Kurt; Weiss, Jochen; Loeffler, Myriam
Source:
Journal of food science 2020 v.85 no.2 pp. 289-297
ISSN:
0022-1147
Subject:
microbial growth,   etc   ; Lactobacillus curvatus; Lactobacillus sakei; fermented sausages; hardness; lactic acid bacteria; mouthfeel; onions; pH; sensory evaluation; taste; texture;     Show all 12 Subjects
Abstract:
... The purpose of the study was to investigate the effect of a reduced pH value (5.1 instead of 5.5 to 5.6) on the properties of highly perishable, spreadable raw fermented sausages (onion mettwurst) with or without the addition of homopolysaccharide (HoPS)‐producing lactic acid bacteria (LAB). Hence, sausages with HoPS‐producing LAB and a pH value of 5.1 were produced and compared to sausages (pH 5. ...
DOI:
10.1111/1750-3841.15010