PubAg

Main content area

You searched for: Subject "sugars" Remove constraint Subject: "sugars"
Start Over

Search

24,594  Search Results

« Previous | 1 - 20 of 24,594 |
Number of results to display per page

Search Results

1. Partition efficiencies of three different coiled columns for the coil satellite centrifuge at higher rotation speed combinations

Author:
Shinomiya, Kazufusa; Zaima, Kazumasa; Yasue, Miho; Honda, Rika; Sakuma, Yoshiyuki; Harikai, Naoki; Tokura, Koji; Ito, Yoichiro
Source:
Journal of chromatography 2019 v.1596 pp. 134-141
ISSN:
0021-9673
Subject:
sugars,   etc   ; chromatography; satellites; solvents;     Show all 4 Subjects
Abstract:
... The partition efficiencies of three different coiled columns, conventional multilayer coiled column, eccentric coiled column and toroidal coiled column, were evaluated by the separation of 4-methylumbelliferyl sugar derivatives using the coil satellite centrifuge (CSC) with an organic-aqueous two-phase solvent system composed of ethyl acetate/1-butanol/water. The CSC apparatus was reinforced the p ...
DOI:
10.1016/j.chroma.2019.03.010

2. Stereoselective synthesis of substituted 1,2-annulated sugars by domino double-Michael addition reaction

Author:
Parasuraman, Kadigachalam; Chennaiah, Ande; Dubbu, Sateesh; Ibrahim Sheriff, A.K.; Vankar, Yashwant D.
Source:
Carbohydrate research 2019 v.477 pp. 26-31
ISSN:
0008-6215
Subject:
sugars,   etc   ; stereoselective synthesis; stereoselectivity;     Show all 3 Subjects
Abstract:
... A simple, highly stereoselective one-pot methodology for the synthesis of novel 1,2-annulated sugars comprising of oxa-oxa and oxa-carbasugar fused skeletons from 2-nitrogalactal and a sugar-derived enone, obtained from 2-formylgalactal, promoted by KOtBu and CH3ONa respectively is described. Both processes rely on a domino double-Michael addition reaction resulting in the formation of three stere ...
DOI:
10.1016/j.carres.2019.03.007

3. Proposal of operating best practices that contribute to the technical efficiency in Brazilian sugar and ethanol mills

Author:
Duarte, Alexandre; Salgado Jr, Alexandre Pereira; Lemos, Stella Vannucci; de Souza Jr, Marco Antonio Alves; Antunes, Fernanda de Almeida
Source:
Journal of cleaner production 2019 v.214 pp. 173-184
ISSN:
0959-6526
Subject:
cane sugar; sugars,   etc   ; case studies; crushing; ethanol; ethanol production; interviews;     Show all 7 Subjects
Abstract:
... Technical efficiency is one of the main performance indicators in a sugar and ethanol mill, and it can be indicated by the percentage of cane sugar recovered and transformed into sugar, ethanol, and other products. Thus, given the sector's current crisis, to increase competition and optimize the performance, productive units need to improve their efficiency in relation to the use of inputs. Theref ...
DOI:
10.1016/j.jclepro.2018.12.204

4. Hybrid modeling based on mechanistic and data-driven approaches for cane sugar crystallization

Author:
Meng, Yanmei; Yu, Shuangshuang; Zhang, Jinlai; Qin, Johnny; Dong, Zhen; Lu, Guancheng; Pang, Haifeng
Source:
Journal of food engineering 2019 v.257 pp. 44-55
ISSN:
0260-8774
Subject:
cane sugar,   etc   ; crystallization; mechanistic models;     Show all 3 Subjects
Abstract:
... Cane sugar crystallization is a non-linear and non-stationary process. Some key parameters which significantly affect the process and the quality of the product such as crystal content and main crystal size distribution parameters (average size and coefficient of variation) still cannot be directly measured online by existing sensors. In this research, we developed a hybrid model which is combinat ...
DOI:
10.1016/j.jfoodeng.2019.03.026

5. Heterogeneous copper-catalyzed direct reduction of C-glycosidic enones to saturated alcohols in water

Author:
Petitjean, L.; de Winter, T. M.; Petrovic, P. V.; Coish, P.; Hitce, J.; Moreau, M.; Bordier, T.; Erythropel, H. C.; Anastas, P. T.
Source:
Green chemistry 2019 v.21 no.2 pp. 238-244
ISSN:
1463-9270
Subject:
sugars,   etc   ; catalysts; copper; green chemistry;     Show all 4 Subjects
Abstract:
... We report a novel method for the reduction of α,β-unsaturated enones to the corresponding fully saturated alcohols in a single procedure. Remarkably, the method employs a heterogeneous copper catalyst in water and only requires resin-treatment for isolation of C-glycosidic alcohols as pure, diastereomeric mixtures. Our methodology was applied to the reduction of aromatic and aliphatic enones which ...
DOI:
10.1039/c8gc02815j

6. Synthesis of het(aryl) imidazole C-nucleoside analogues by CoFe2O4 NPs catalyzed muti-component coupling reaction

Author:
Zhang, Fuyi; Li, Yang; Gao, Fei; liu, Hong; Zhao, Yufen
Source:
Carbohydrate research 2019 v.477 pp. 39-50
ISSN:
0008-6215
Subject:
sugars,   etc   ; aldehydes; alkynes; imidazoles; iodides; oxidation;     Show all 6 Subjects
Abstract:
... A general synthesis of hetaryl and aryl C-4(5) linked imidazole C-nucleoside analogues has been developed by the reaction of sugar alkynes with het(aryl) iodides, KMnO4/TBAB oxidation and CoFe2O4 NPs catalyzed muti-component coupling of the corresponding diketones, NH4OAc and aromatic aldehydes in one-pot. The sugar alkynes include pyranosides and furanosides with acid sensitive protecting groups. ...
DOI:
10.1016/j.carres.2019.03.013

7. 2-Formylpyrrole natural products: origin, structural diversity, bioactivity and synthesis

Author:
Wood, James M.; Furkert, Daniel P.; Brimble, Margaret A.
Source:
Natural product reports 2019 v.36 no.2 pp. 289-306
ISSN:
1460-4752
Subject:
sugars,   etc   ; amines; antioxidant activity; immunostimulants; secondary metabolites;     Show all 5 Subjects
Abstract:
... Covering: up to April 2018 2-Formylpyrroles are ubiquitous in nature, arising from the non-enzymatic Maillard reactions of amines and sugars. Often confused for secondary metabolites, these Maillard products display interesting biological activities including hepatoprotective, immunostimulatory, antiproliferative and antioxidant effects. This review presents all 2-formylpyrrole natural products re ...
DOI:
10.1039/c8np00051d

8. A FRET based ratiometric fluorescent probe for detection of sulfite in food

Author:
Zhang, Gongxiao; Ji, Ruixue; Kong, Xiangyu; Ning, Fujiao; Liu, Aikun; Cui, Jichun; Ge, Yanqing
Source:
RSC advances 2019 v.9 no.2 pp. 1147-1150
ISSN:
2046-2069
Subject:
sugars,   etc   ; benzimidazole; color; fluorescent dyes; sulfites;     Show all 5 Subjects
Abstract:
... A new fluorophore pyrido[1,2-a]benzimidazole based ratiometric fluorescent probe for the selective detection of sulfite ions in water was investigated. It shows large (pseudo) Stokes shifts (260 nm), high FRET efficiency, high selectivity and sensitivity. A distinct color change from red to colorless was observed and importantly, it proves to be a convenient and efficient tool to detect the sulfit ...
DOI:
10.1039/c8ra08967a

9. A stereoselective sequential organocascade and multicomponent approach for the preparation of tetrahydropyridines and chimeric derivatives

Author:
Echemendía, Radell; da Silva, Gustavo P.; Kawamura, Meire Y.; de la Torre, Alexander F.; Corrêa, Arlene G.; Ferreira, Marco A. B.; Rivera, Daniel G.; Paixão, Márcio W.
Source:
Chemical communications 2019 v.55 no.3 pp. 286-289
ISSN:
1364-548X
Subject:
sugars,   etc   ; chemical compounds; chemical reactions; diastereoselectivity; moieties;     Show all 5 Subjects
Abstract:
... A stereoselective multicomponent approach leading to a novel class of pentasubstituted tetrahydropyridines is described. Variation of the components enabled the incorporation of peptide, sugar and steroid moieties to access chimeric derivatives. DFT calculations provide insights about the unprecedented high diastereoselectivity of the MCR. ...
DOI:
10.1039/c8cc06871b

10. Improved biobleaching of mixed hardwood pulp and process optimization using novel GA-ANN and GA-ANFIS hybrid statistical tools

Author:
Kumar, Vishal; Kumar, Ashwani; Chhabra, Deepak; Shukla, Pratyoosh
Source:
Bioresource technology 2019 v.271 pp. 274-282
ISSN:
0960-8524
Subject:
reducing sugars,   etc   ; biobleaching; hardwood; lignin; pulp; xylanases;     Show all 6 Subjects
Abstract:
... The process parameters for xylanase biobleaching of mixed hardwood pulp like, reaction time (6–35 h), pulp consistency (2.5–15%) and xylanase dose (5–35 U) were optimized using OFAT approach and hybrid statistical tools viz. GA-ANN and GA-ANFIS. The biobleaching ability of xylanase in terms of reducing sugar yield increased up to 28.16 mg g−1 (28.05%) than OFAT optimization (21.99 mg g−1 of pulp) ...
DOI:
10.1016/j.biortech.2018.09.115

11. Study on the sugar content of blue-veined “Gorgonzola” PDO cheese

Author:
Monti, Lucia; Pelizzola, Valeria; Povolo, Milena; Fontana, Stefano; Contarini, Giovanna
Source:
International dairy journal 2019 v.95 pp. 1-5
ISSN:
0958-6946
Subject:
sugar alcohols; sugar content,   etc   ; cheese ripening; cheeses; chromatography; galactose; glucose; lactose; lactose free diet; metabolism; microorganisms;     Show all 11 Subjects
Abstract:
... A chromatographic method, HPAEC-PAD, was applied to 49 samples of Gorgonzola PDO cheese to quantify residual sugars. Very low levels were detected in both sweet and piquant categories: values were, respectively, 1.24 ± 1.30 and 0.69 ± 0.11 mg 100 g−1 for lactose, 1.21 ± 0.60 and 2.07 ± 1.77 mg 100 g−1 for galactose and 5.41 ± 4.58 and 4.46 ± 4.09 mg 100 g−1 for glucose. Analysis of cores, taken fr ...
DOI:
10.1016/j.idairyj.2019.03.009

12. Distribution of heating surface areas in sugar juice evaporation process for maximum energy efficiency

Author:
Chantasiriwan, Somchart
Source:
Journal of food process engineering 2019 v.42 no.3 pp. e12998
ISSN:
0145-8876
Subject:
raw sugar; sugars,   etc   ; energy efficiency; evaporation; mathematical models; molasses; steam; thermal energy; water content;     Show all 9 Subjects
Abstract:
... The conversion of diluted sugar juice into raw sugar and molasses requires thermal energy for evaporating the water content in sugar juice. The supply of thermal energy is saturated steam at around 200 kPa. The efficiency of energy use by the process is determined from the amount of saturated steam to process a given amount of sugar juice. It depends on heating surfaces of the juice heater and the ...
DOI:
10.1111/jfpe.12998

13. Constraints in Sugar Production and Utilization of New Improved Varieties in Enhancing Sugar Productivity in Yunnan Province, P. R. China

Author:
Chen, Xuekuan; Zhao, Peifang
Source:
Sugar tech 2019 v.21 no.1 pp. 55-61
ISSN:
0972-1525
Subject:
sugar industry; sugars,   etc   ; cash crops; economic sustainability; high-yielding varieties; sugarcane; China;     Show all 7 Subjects
Abstract:
... Sugarcane is a main cash crop in Yunnan Province, and nearly 10% populations of this area are involved in sugarcane cultivation and the industry. However, sugarcane and sugar industry are being confronted with serious challenges in China due to various reasons. Competition and comparing benefits with other crops, high cost, new and high yielding varieties, better technologies and management practi ...
DOI:
10.1007/s12355-018-0627-x

14. Effect of Silicon and Nitrogen on Diatraea tabernella Dyar in Sugarcane in Panama

Author:
Atencio, Randy; Goebel, François-Régis; Guerra, Abby
Source:
Sugar tech 2019 v.21 no.1 pp. 113-121
ISSN:
0972-1525
Subject:
sugar content; sugars,   etc   ; Diatraea; Pyralidae; agronomic traits; biomass; boring insects; internodes; nitrogen; silicon; sugarcane; Panama;     Show all 12 Subjects
Abstract:
... The main pest of sugarcane in Panama is the stem borer, Diatraea tabernella Dyar (Lepidoptera: Pyralidae) which can cause significant losses in cane biomass and sugar. The objective of this study was to determine the influence of two silicon- and nitrogen-based products applied at two rates on borer infestation. To compare the effect of these two amendments, a completely randomized block design wa ...
DOI:
10.1007/s12355-018-0634-y

15. Improvement on bioprocess economics for 2,3-butanediol production from very high polarity cane sugar via optimisation of bioreactor operation

Author:
Maina, Sofia; Stylianou, Eleni; Vogiatzi, Effrosyni; Vlysidis, Anestis; Mallouchos, Athanasios; Nychas, George-John E.; de Castro, Aline Machado; Dheskali, Endrit; Kookos, Ioannis K.; Koutinas, Apostolis
Source:
Bioresource technology 2019 v.274 pp. 343-352
ISSN:
0960-8524
Subject:
cane sugar; sugars,   etc   ; Enterobacter; bioprocessing; bioreactors; byproducts; experimental design; fermentation; market prices; pH; sugarcane; temperature;     Show all 12 Subjects
Abstract:
... This study focuses on the optimisation of 2,3-butanediol (BDO) production in fed-batch cultures carried out with the bacterial strain Enterobacter ludwigii using very high polarity (VHP) sugar from sugarcane mills. Various kLa values were evaluated using either complex or synthetic fermentation media demonstrating that the latter enhance BDO production efficiency with low by-product formation. The ...
DOI:
10.1016/j.biortech.2018.11.001

16. The Development of World Sugar Prices

Author:
Maitah, Mansoor; Smutka, Luboš
Source:
Sugar tech 2019 v.21 no.1 pp. 1-8
ISSN:
0972-1525
Subject:
raw sugar; sugars,   etc   ; biofuels; capital; commodity markets; economic crises; economic incentives; globalization; market prices;     Show all 9 Subjects
Abstract:
... The globalization of the world economy is a phenomenon that has historical roots that began in the early 1970s, when the Bretton Woods and the Smithsonian agreements were created. This resulted in freely floating exchange rates and the gradual deregulation of financial markets. In addition, this increased market accessibility for individual and institutional speculators. By increasing market price ...
DOI:
10.1007/s12355-018-0618-y

17. Quantitative Trait Locus (QTL) Mapping of Sugar Yield-Related Traits in Sugar Beet (Beta vulgaris L.)

Author:
Wang, Maoqian; Xu, Yuhui; Wang, Weicheng; Wu, Zedong; Xing, Wang; Zhang, Hanguo
Source:
Sugar tech 2019 v.21 no.1 pp. 135-144
ISSN:
0972-1525
Subject:
sugar beet; sugar content; sugars,   etc   ; Beta vulgaris; diploidy; genes; genetic distance; linkage groups; marker-assisted selection; molecular cloning; normal distribution; parents; phenotypic variation; quantitative trait loci; China;     Show all 15 Subjects
Abstract:
... Quantitative trait locus (QTL) mapping of sugar yield-related traits can promote the discovery of new sugar yield-related genes. Subsequently, marker-assisted selection (MAS) can be used to breed new high-yield sugar beet varieties. In this study, we observed the F₁ population (219 individuals) from a cross of 3a (high-yield, low-sugar, diploid, monogerm, sterile line) and 3b (low-yield, high-suga ...
DOI:
10.1007/s12355-018-0632-0

18. Rhenium-catalyzed deoxydehydration of renewable triols derived from sugars

Author:
Wozniak, Bartosz; Li, Yuehui; Tin, Sergey; de Vries, Johannes G.
Source:
Green chemistry 2018 v.20 no.19 pp. 4433-4437
ISSN:
1463-9270
Subject:
sugars,   etc   ; green chemistry; rhenium;     Show all 3 Subjects
Abstract:
... An efficient method for the catalytic deoxydehydration of renewable triols, including those obtained from 5-HMF, is described. The corresponding unsaturated alcohols were obtained in good yields using simple rhenium(vii)oxide under neat conditions and ambient atmosphere at 165 °C. ...
DOI:
10.1039/c8gc02387e

19. Agroindustrial best practices that contribute to technical efficiency in Brazilian sugar and ethanol production mills

Author:
Lemos, Stella Vannucci; Salgado, Alexandre Pereira; Duarte, Alexandre; de Souza, Marco Antonio Alves; de Almeida Antunes, Fernanda
Source:
Energy 2019 v.177 pp. 397-411
ISSN:
0360-5442
Subject:
sugars,   etc   ; ethanol; ethanol production; milling; models; regression analysis; sugarcane;     Show all 7 Subjects
Abstract:
... The agricultural and industrial indicators that contribute to the efficiency of sugarcane mills were investigated in this study. A two-stage Data Envelopment Analysiswith output approach was applied to 271 mills for the data from the 2006/2007 season to the 2015/2016 season. The first stage consisted of the elaboration of two efficiency models using the total milling yield of the crop (t) and the ...
DOI:
10.1016/j.energy.2019.04.053

20. Effects on the color, taste, and anthocyanins stability of blueberry wine by different contents of mannoprotein

Author:
Sun, Xiyun; Yan, Zhicheng; zhu, Tong; Zhu, Jinyan; Wang, Yuehua; Li, Bin; Meng, Xianjun
Source:
Food chemistry 2019 v.279 pp. 63-69
ISSN:
0308-8146
Subject:
sugars,   etc   ; alcohols; anthocyanins; blueberries; color; fruit wines; nutrition; taste; winemaking;     Show all 9 Subjects
Abstract:
... Blueberry wine is a new fruit wine with good taste and rich nutrition, but color change and anthocyanins (ACNs) content readily decrease during the production process. The effects of different content (0.2 g/L, 0.25 g/L, and 0.3 g/L) of mannoprotein (MP) on the blueberry wine were investigated in this study. The result showed that MP treatment inhibited the decrease in ACN content, reduced the con ...
DOI:
10.1016/j.foodchem.2018.11.139