scholarly journals Spelt pasta with inulin as a functional food

2015 ◽  
pp. 37-44
Author(s):  
Jelena Filipovic ◽  
Lato Pezo ◽  
Vladimir Filipovic ◽  
Gordana Ludajic
Keyword(s):  
Nmr Spectroscopy ◽  
Functional Food ◽  
Nmr Spectra ◽  
Mas Nmr ◽  
Raw Material ◽  
Simultaneous Increase ◽  
Nutritional Properties ◽  
Deconvolution Analysis ◽  
Technological Characteristics ◽  
Functional Product

Spelt wheat growing without use of pesticides is a suitable raw material for whole meal products. The aim of this study was to enhance the fiber content in spelt pasta by adding inulin HPX. Inulin HPX replaced the spelt farina in the quantity of 0%, 5%, 10% and 20%, thus contributing to a decrease in the toughness, and improving color of the pasta. The presence of inulin can be clearly distinguished from other polysaccharides components by 13C MAS NMR spectroscopy. A simultaneous increase in the area of the peaks at 81, 74, 64 and 58 ppm, obtained during the deconvolution analysis of the NMR spectra, is directly associated with the increase in the inulin content. Inulin contributes positively to the nutritive and technological characteristics of the pasta. Spelt pasta with 20 % of inulin is a new functional product with modified nutritional properties and with decreased digestible carbohydrates in the amuount of 43.2% and reduced energy of 27.2%.

Ultrafast high-resolution magic-angle-spinning NMR spectroscopy

The Analyst ◽  
2015 ◽  
Vol 140 (12) ◽  
pp. 3942-3946 ◽  
Author(s):  
Marion André ◽  
Martial Piotto ◽  
Stefano Caldarelli ◽  
Jean-Nicolas Dumez
Keyword(s):  
Nmr Spectroscopy ◽  
High Resolution ◽  
Nmr Spectra ◽  
Magic Angle Spinning ◽  
Mas Nmr ◽  
Magic Angle ◽  
Solid Samples ◽  
Semi Solid ◽  
Angle Spinning

The acquisition of ultrafast high-resolution magic-angle spinning (HR-MAS) NMR spectra of semi-solid samples is demonstrated.

Suspension NMR Spectroscopy of Phosphines and Carbonylnickel Complexes Immobilized on Silica

1995 ◽  
Vol 50 (11) ◽  
pp. 1723-1728 ◽  
Author(s):  
K. D. Behringer ◽  
J. Bliimel
Keyword(s):  
Nmr Spectroscopy ◽  
High Resolution ◽  
Nmr Spectra ◽  
Solvent Polarity ◽  
Mas Nmr ◽  
Solvent Viscosity ◽  
Alkyl Chains ◽  
High Resolution Nmr ◽  
Cp Mas Nmr ◽  
Nmr Signals

The 31P suspension NMR spectra o f silica-immobilized bifunctional phosphines and their di- and tricarbonylnickel complexes were recorded using conventional high resolution NMR equipment. The practical advantages of suspension NMR spectroscopy, as compared to 31P CP/MAS NMR spectroscopy, are discussed. General tendencies are demonstrated: The suspension NMR signals become broader with increasing solvent viscosity and decreasing solvent polarity. Phenyl groups as spacers lead to broader resonances than alkyl chains. The linewidths increase in the case of chelation.

Solid-State 29Si VACP/MAS NMR Studies of Silicon-Accumulating Plants: Structural Characterization of Biosilica Deposits

2000 ◽  
Vol 55 (6) ◽  
pp. 459-461 ◽  
Author(s):  
Rüdiger Bertermann ◽  
Reinhold Tacke
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Nmr Spectra ◽  
Mas Nmr ◽  
Typical Pattern ◽  
Nmr Studies ◽  
Polysilicic Acid ◽  
Freeze Dried ◽  
Pattern Characteristic

A series of silicon-accumulating plants [different Equisetum (horse tail) species, Echium vulgare, and Symphytum officinale] were studied by solid-state 29Si NMR experiments. For this purpose, selected parts of these plants were freeze-dried and then investigated by solid-state 29Si VACP/MAS NMR spectroscopy. The 29Si NMR spectra of these plants are quite similar and exhibit the typical pattern characteristic of polysilicic acid (amorphous silica).

scholarly journals Dynamic nuclear polarisation enhanced14N overtone MAS NMR spectroscopy

2014 ◽  
Vol 16 (25) ◽  
pp. 12890-12899 ◽  
Author(s):  
Aaron J. Rossini ◽  
Lyndon Emsley ◽  
Luke A. O'Dell
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Nmr Spectra ◽  
Signal Enhancement ◽  
Mas Nmr ◽  
Natural Abundance ◽  
Dynamic Nuclear Polarisation ◽  
Nuclear Polarisation

Dynamic nuclear polarisation has been used to obtain solid-state14N overtone NMR spectra with signal enhancement levels of over two orders of magnitude, including natural abundance C–N and H–N correlation spectra.

scholarly journals Synthesis of α-Alumina Nano-Onions by Thermal Decomposition of Aluminum Formate

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Nadia Vargas-Martínez ◽  
Álvaro de Jesús Ruíz-Baltazar ◽  
Nahúm A. Medellín-Castillo ◽  
Simón Yobanny Reyes-López
Keyword(s):  
Thermal Decomposition ◽  
Nmr Spectroscopy ◽  
Specific Surface ◽  
Surface Area ◽  
Nmr Spectra ◽  
Mas Nmr ◽  
Hrtem Image ◽  
Sem Images ◽  
Coordination Numbers ◽  
Aluminum Ions

A simplified route to prepare α-Al2O3 nano-onions and alumina powders with an excellent surface area through the thermal decomposition of aluminum formate (Al(O2CH)3) precursor is proposed. The calcined powders were characterized by infrared and 13C MAS NMR spectroscopy. Coordination numbers and chemical interactions were determined by 27Al MAS NMR spectroscopy. The 27Al MAS NMR spectra showed the presence of η-Al2O3 at 1000°C, and the transformation to α-Al2O3 at 1100°C. The spectral data also showed that while the precursor contained 6-coordinated aluminum ions, four-, five-, and six-coordinated aluminum species were present after calcination at 400°C. SEM images and BET measurements of α-Al2O3 revealed aggregated particles with a specific surface area of 118 m2/g. A nano-onion structure of α-Al2O3 was evident from the HRTEM image.

Quantitative and structure analysis of pectin in tobacco by13C CP/MAS NMR spectroscopy

2014 ◽  
Vol 6 (16) ◽  
pp. 6407-6413 ◽  
Author(s):  
Xiaolan Zhu ◽  
Baizhan Liu ◽  
Saijing Zheng ◽  
Yun Gao
Keyword(s):  
Nmr Spectroscopy ◽  
Structure Analysis ◽  
Nmr Spectra ◽  
Mas Nmr ◽  
New Method ◽  
Optimal Conditions ◽  
Cp Mas Nmr

A new method utilizing13C CP/MAS NMR spectra was developed for the simultaneous quantitative and structure analysis of pectin in tobacco. The method was employed to measure pectin after the extraction of tobacco samples with acid under optimal conditions (pH 2.0 for 1.5 h at 85 °C).

scholarly journals Quality of spelt pasta enriched with eggs and identification of eggs using 13C MAS NMR spectroscopy

2015 ◽  
Vol 69 (1) ◽  
pp. 59-65 ◽  
Author(s):  
Jelena Filipovic ◽  
Zoran Miladinovic ◽  
Lato Pezo ◽  
Nada Filipovic ◽  
Vladimir Filipovic ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Mas Nmr ◽  
Simultaneous Increase ◽  
Positive Contribution ◽  
13C Mas Nmr ◽  
Score Analysis ◽  
Coefficients Of Variation ◽  
Pertinent Data ◽  
Quantity Control ◽  
Post Hoc

This paper deals with the characteristics of spelt pasta enriched with eggs. Eggs were added to spelt farina in the quantity of 0, 124 or 248 g/kg (equivalent to 0, 3 or 6 eggs, respectively). Post-hoc Tukey?s HSD test at 95% confidence limit showed significant differences between various samples. Relatively low coefficients of variation have been obtained for each applied assay (1.25-12.42%), which confirmed the high accuracy measurements and statistically significant results. Standard score analysis is applied for accessing the contribution of eggs content to spelt pasta quality. Maximum scores regarding quality (0.89) and chemical characteristics (0.70), have been obtained for 6 eggs spelt pasta formulation. It is also shown that the presence of eggs in pasta can be clearly confirmed by 13C MAS NMR spectroscopy. Simultaneous increase in area of peak positioned at 29.5 and 176 ppm is directly associated with the increase in the content of added eggs in the corresponding samples. Pertinent data point at positive contribution of eggs to the spelt pasta and also that NMR spectrum can be used in the egg quantity control.

Investigation of Phosphorus Site Condensation in CaHPO4 by Analysis of 31P MAS-NMR Tensor and X-Ray Powder Patterns

2006 ◽  
Vol 61 (7-8) ◽  
pp. 375-382 ◽  
Author(s):  
Faouzi Hlel ◽  
Saber Kamoun ◽  
Kamel Guidara
Keyword(s):  
Nmr Spectroscopy ◽  
Nmr Spectra ◽  
Room Temperature ◽  
Chemical Shifts ◽  
Mas Nmr ◽  
Slow Evaporation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Annealing Temperatures ◽  
31P Mas Nmr

CaHPO4 was obtained by slow evaporation at room temperature. Seven samples, obtained at different annealing temperatures, were characterized by X-ray diffraction and 31P MAS-NMR spectroscopy. All NMR spectra were analyzed using a DMFIT program. At room temperature, the observed 31P NMR chemical shifts for the title compound were −1.59, −0.36 and 1.26 ppm with the relative intensities 39%, 10% and 51%, revealing the presence of three non-equivalent phosphorus sites in the structure. The investigation of the NMR tensor shift of all spectra shows that the abounding HPO2−4 anion was progressively transformed into P2O4−7 when the temperature increased

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