scholarly journals Produção e caracterização de adsorventes derivados de lodo biológico industrial / Production and characterization of adsorbents derived from industrial biological sludge

2021 ◽  
Vol 7 (6) ◽  
pp. 57081-57092
Author(s):  
Tatiana Yuri Ramos Oda ◽  
Ana Augusta Passos Rezende ◽  
Rita de Cássia Superbi De Sousa ◽  
Charles Luís Da Silva
Foods ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1772
Author(s):  
Paula Pereira ◽  
Carla Palma ◽  
Cíntia Ferreira-Pêgo ◽  
Olga Amaral ◽  
Anabela Amaral ◽  
...  

The industrial production of wine generates annually tons of waste that can and must be properly reused to reduce its polluting load ad increase the availability of passive ingredients to be used in human nutrition. Grape pomace, a by-product of winemaking, beyond being of nutritional value is a bioactive source with high potential value and benefits for human health. Having as main goal the preliminary perception of the potential use of this by-product, the aim of this study was the characterization of eight different grape pomaces. In this sense, ash content, relative ash, moisture, pH, microorganisms, metals (Al, Cd, Cr, Cu, Fe, Hg, Li, Mn, Ni, Pb, and Zn), and semi-metal (As) were reported. The parameter that limits the daily amount ingested of this product is its arsenic content, a non-essential element that belongs to the group of semi-metal. Considering the obtained results and in the light of the restrictions imposed through the legislation in regulations set by the European Commission, the inclusion of grape pomace in the industrial production of foodstuffs could be a step towards the future of human nutrition and health.


2018 ◽  
Vol 925 ◽  
pp. 342-349 ◽  
Author(s):  
Riccardo Donnini ◽  
Franco Zanardi ◽  
Federico Vettore ◽  
Giuliano Angella

Dislocation-density-related equations were proved to be promising tools to correlate tensile plastic behaviour and microstructure in ductile irons (DIs), revealing distinct relationships between equation parameters and microstructure features in austempered ductile irons (ADI) and isothermed ductile irons (IDI). These equations resulted to be successful also in the characterization of the austempering process through the plastic behaviour analysis of tensile tests of an ADI 1050 that was quenched at different times during austempering. The equation parameters could indeed be correlated to the time window for the best ausferrite, and could predict the precipitation of the deleterious ε' carbides for long austempering times. In the present work the results of the tensile plastic behaviour analysis of different DIs through dislocation-density-related equations are reported. The aim of the analysis was to test the capability of these equations to assess the microstructure quality of DIs and support their industrial production.


2011 ◽  
Vol 396-398 ◽  
pp. 1115-1118 ◽  
Author(s):  
Yue Lin Zhu ◽  
Ji Ne Wang ◽  
Chang Jian Xiong

A three-step route was used in the study to synthesize the Iso E Super®. Firstly, acetaldehyde was reacted with butanone to obtain 3-methyl-3pentene-2-one, which, in turn, was reacted with myrcene to form a subsitiuted acyl cyclohexene. Finally, the so called Diels-Alder adduct was cyclized. The structure of the products was confirmed by NMR, IR, GC-MS and Roman analysis. The method used has the advantages of readily availability of starting materials, mild reaction conditions, convenient manipulation and moderately high yields, so it has a promising prospect in industrial production


2013 ◽  
Vol 117 ◽  
pp. 225-230 ◽  
Author(s):  
Xiaohui Tang ◽  
Laurent A. Francis ◽  
Longfei Gong ◽  
Fengzhen Wang ◽  
Jean-Pierre Raskin ◽  
...  

2016 ◽  
Vol 26 (4) ◽  
pp. 1-4 ◽  
Author(s):  
Yu. Karasev ◽  
A. Malchenkov ◽  
P. Lukyanov ◽  
M. Polikarpova ◽  
V. Pantsyrny ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jinzhu Zhang ◽  
Minghai Tang ◽  
Yujie Chen ◽  
Dan Ke ◽  
Jie Zhou ◽  
...  

AbstractSteviol glycosides are the intensely sweet components of extracts from Stevia rebaudiana. These molecules comprise an invariant steviol aglycone decorated with variable glycans and could widely serve as a low-calorie sweetener. However, the most desirable steviol glycosides Reb D and Reb M, devoid of unpleasant aftertaste, are naturally produced only in trace amounts due to low levels of specific β (1–2) glucosylation in Stevia. Here, we report the biochemical and structural characterization of OsUGT91C1, a glycosyltransferase from Oryza sativa, which is efficient at catalyzing β (1–2) glucosylation. The enzyme’s ability to bind steviol glycoside substrate in three modes underlies its flexibility to catalyze β (1–2) glucosylation in two distinct orientations as well as β (1–6) glucosylation. Guided by the structural insights, we engineer this enzyme to enhance the desirable β (1–2) glucosylation, eliminate β (1–6) glucosylation, and obtain a promising catalyst for the industrial production of naturally rare but palatable steviol glycosides.


Author(s):  
Matej Menčík ◽  
Richard Kuracina ◽  
Zuzana Szabová ◽  
Karol Balog

Abstract The aim of this paper is to approximate danger of dust clouds normally occur by determining their explosion characteristics. Nowadays, dusty environment is phenomenon in the industry. In general, about 70% of dust produced is explosive. Dust reduction in companies is the main purpose of the national and European legislative. Early identification and characterization of dust in companies may reduce the risk of explosion. It could be used to identify hazards in industrial production where an explosive dust is produced. For this purpose several standards for identification and characterization of explosion characteristics of industrial dust are being used.


RSC Advances ◽  
2019 ◽  
Vol 9 (41) ◽  
pp. 23856-23863
Author(s):  
Shuhong Mao ◽  
Yanna Liu ◽  
Juanjuan Yang ◽  
Xiaoyu Ma ◽  
Fang Zeng ◽  
...  

Fructosyltransferases have been used in the industrial production of fructooligosaccharides (FOS).


Author(s):  
Wenlin Chen ◽  
Hui Ding ◽  
Jianshu Yu ◽  
Ying Zhang ◽  
Xuejiao Sun ◽  
...  

Driven by the emerging development of transparent and flexible electronics, colorless polyimide (CPI) has been attracting much attention in recent years. As a key component for next generation electronics, CPI film will be well focused both on research and commercialization. In this chapter, we would like to provide a review and outlook to the field for the reference of scientists, engineers, and entrepreneurs. Topics being addressed are formulation/design, synthesis of the resin, fabrication, and characterization of the CPI films, as well as trends of the film application for the next generation of electronics. Attention will also be given to the current stage of manufacturing of CPI monomers and resin, industrial production of CPI films, etc.


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