Flavors & Fragrances

Protein Denaturation and Texture Analysis for Chicken
We conducted an overall evaluation of texture in fried chicken heated over different time periods. A DSC was used to measure protein denaturation, and a precision universal testing machine was used to measure the hardness and elasticity.
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Higher Sensitivity Analysis of 2-Methoxy-3-Isobutylpyrazine (MIBP) in Wine Using GC-MS/MS(PCI)
2-Methoxy-3- isobutylpyrazine (MIBP) is an aromatic substance with the fragrance of bell peppers. It is found in sauvignon blanc (a type of grape used for white wine) and cabernet sauvignon (a type of grape used for red wine), and gives the wines a favorable aroma. MIBP, which has a significant impact on the flavor of wine, has an extremely low threshold value in sensory tests, on the order of a few ng/L. Since wine contains many components, concentration and selective separation & detection are essential to analysis.
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Analysis of Aroma Components in Peach Juice by GCMS Using the OPTIC-4 Multimode Inlet and Mono Trap
The OPTIC-4 is a multimode injection system with a thermal desorption function that enables performing thermal desorption by placing an adsorbent in the injection port liner cup. In combination with the new MonoTrap adsorbent, the system enables analyzing aroma components with high sensitivity.
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Analysis of Aroma Compounds in Cheese
Volatile compounds, including aroma compounds, in Parmesan and Blue cheese were analyzed using adsorption and thermal desorption GC/MS (TD-GC/MS). MonoTrap was used as adsorbant. It is a state-of-theart silica monolithic and hybrid adsorbent having a large surface area and properties based on silica, activated carbon (graphite carbon for Mono Trap TD) and the octadecyl functional group. GC-MS equipped with the OPTIC-4 multi-purpose injector was used for thermal desorption. The OPTIC-4 allows direct introduction of desorbed gas into a capillary column without re-adsorption.
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Analysis of Contaminant Adhering to Frozen Pizza
The steady stream of consumer complaints related to foods reflects continuing high concern for food safety. To address these concerns and specific contaminationrelated complaints, it is important to quickly and accurately report the analysis results and clearly elucidate the contamination pathway. Here, using a Fourier transform infrared spectrometer (FTIR) and an energy dispersive X-ray fluorescence spectrometer (EDX), in addition to an electron probe micro analyzer (EPMA), we present the results of analysis of a contaminant adhering to the surface of frozen pizza.
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Simultaneous Analysis of Residual Pesticides in Foods via the QuEChERS Method Utilizing GC-MS/MS
This application demonstrates the simultaneous analysis of residual pesticides in foods using the QuEChERS method.
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Particle Size Distribution Measurement of Powdered Young Leaf Blade of Barley
Powdered barley grass is often used in health food products. At the distribution stage, it is packaged in dry powdered form, but it is normally mixed with water, milk, or other liquids, to form a suspension for actual consumption. In other words, from the time it is shipped until it is consumed, the barley grass exists in a variety of different states. Particle size distribution is a physical property that is dependent on the dispersion status. Given the same sample, measurement results can differ depending on how the particles are dispersed. This article describes the results obtained from measuring the particle size distribution of the same sample in which the particles were dispersed using three different dispersion methods. Note the difference in particle size distributions, depending on the dispersion conditions. Measurements were obtained using a Shimadzu SALD-2300 laser diffraction particle size analyzer.
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LC/MS/MS Analysis of Vitamin D by the Co-Sense for Impurities System
The Co-Sense for Impurities system, as previously described in Application News No. L424, is a complete HPLC configuration that automates the sample pretreatment process in trace level analysis. The earlier article presented an example of high sensitivity detection using analyte extraction and concentration. This system offers analyte concentration and removal of
impurities, and therefore comprises 3 flow lines: one for primary separation, another for concentration, and the third for secondary separation. Since a different mobile Detector B
phase and column can be selected for each flow line, a combination of conditions can be used, including those that are conducive for separation at the primary separation stage and that are appropriate for detection for the secondary separation stage. Here we introduce
an example in which Vitamin D3 capsules were analyzed
by LC/MS/MS using such a method.
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Analysis of 2-Alkylcyclobutanones by GC/MS: Detection of Irradiated Foods
In this Application News, we introduce an example of fat can be extracted (beef, pork, chicken, salmon, and Camembert cheese , etc . )
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Quantitative Analysis of Trans Fatty Acid by FTIR
Here we introduce a quantitative analysis study we conducted for trans fatty acids by the ATR and transmission methods. Measurement was conducted according to the official method<sup>2</sup>) as prescribed by The American Oil Chemists' Society (AOCS). Measurement was also conducted by the transmission method in cases where the trans fatty acid content was assumed to be very low.
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Ultrafast Analysis of Water-Soluble Vitamins
Water‐soluble vitamins such as thiamine (vitamin B1) and riboflavin (vitamin B2) are generally analyzed by reverse‐phase ion‐pair chromatography. This document introduces an example of ultrafastanalysis performed on water‐soluble vitamins by gradient elution using Nexera and a Phenomenex Kinetex C18 column (particle size 2.6µm, a core‐shell column where a 0.35µm porous membrane is combined with a 1.9µm solid core).
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Simultaneous measurement of positive-negative Ions of 30 pesticides for water management using the LCMS-8030 triple quad mass spectrometer.
Japan’s Ministry of Health, Labour and Welfare has designated simultaneous analysis using C18 solid-phase extraction and LC/MS to be the official analytical method for managing targeted pesticides in water (revised on April, 2008). Currently, 31 pesticides are covered. This document describes simultaneous MRM analysis using polarity switching with electrospray ionization (ESI) and LC conditions for 30 of these targeted pesticides (excludes Oxine-Cu). The LCMS-8030 is capable of setting the MRM measurement time of each compound independently. In addition, the polarity switching time is short (15msec), making the LCMS- 8030 suitable for simultaneous analysis of multiple compounds that ionize in both positive and negative modes.
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Fast precursor ion scan and neutral loss measurement of sulfa drugs using the LCMS-8030 Triple Quad Mass Spectrometer
Fast Precursor Ion Scan and Neutral Loss Measurement of Sulfa Drugs Using the LCMS-8030 Triple Quad Mass Spectrometer.
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Analysis of fat soluble vitamins using the LCMS-8030 Triple Quad Mass Spectrometer
Analysis of fat soluble vitamins using the LCMS-8030 Triple Quad Mass Spectrometer. Vitamins include: Vitamin A, Vitamin D2, Vitamin D3, Vitamin K1 and many more.
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Analysis of Food Additives – Food Antioxidants
This Application News introduces the results of analysis of the antioxidants BHA, BHT and TBHQ using a gas chromatograph mass spectrometer (GC/MS). The antioxidants were added to a butter sample, and then extracted using a simple pretreatment process. In this analysis, the backflush technique was employed to prevent high-boiling point substances in the actual sample from being introduced into the detector.
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