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30 Newest Publications about the topic food analytics

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Soluble Dietary Fiber Fractions in Wheat Bran and Their Interactions with Wheat Gluten Have Impacts on Dough Properties

14-Nov-2016 | Qian Li; Rui Liu; Tao Wu; Man Wang; Min Zhang, Journal of Agricultural and Food Chemistry, 2016

Six soluble dietary fiber (SDF) fractions were prepared via stepwise ethanol precipitation from natural and fermented wheat bran. The chemical composition, molecular weight distribution, and glycosidic linkage and substitution pattern of each SDF fraction were elucidated by sugar analysis, ...

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New Acylated Flavonol Glycosides and a Phenolic Profile of Pritzelago alpina, a Forgotten Edible Alpine Plant

16-Feb-2016 | Elisabetta Corradi, Maria De Mieri, Larissa Cadisch, Christian Abbet, Matthias Hamburger, Olivier Potterat, Chemistry & Biodiversity, 2016

Abstract Thirteen acylated flavonoid glycosides, 1–13, including eleven new congeners, 3–13, were isolated from the aerial parts of Pritzelago alpina (Brassicaceae) by a combination of column chromatography on Sephadex LH‐20, and preparative and semi‐preparative HPLC. The structures were ...

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Direct Analysis of Free and Sulfite-Bound Carbonyl Compounds in Wine by Two-Dimensional Quantitative Proton and Carbon Nuclear Magnetic Resonance Spectroscopy

23-Oct-2015 | Maria Nikolantonaki; Prokopios Magiatis; Andrew L. Waterhouse, Analytical Chemistry, 2015

Recent developments that have accelerated 2D NMR methods and improved quantitation have made these methods accessible analytical procedures, and the large signal dispersion allows for the analysis of complex samples. Few natural samples are as complex as wine, so the application to challenges in ...

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Molecules, Vol. 20, Pages 4162-4179: Chemical Constituents and Structural Characterization of Polysaccharides from Four Typical Bamboo Species Leaves

05-Mar-2015 | Wang, Cheng-Zhang ; Zhang, Hong-Yu ; Li, Wen-Jun ; Ye, Jian-Zhong, Molecules, 2015

In order to find bamboo leaves with high contents of bioactive polysaccharides, 32 samples were chosen to analyze their polysaccharide content by GC and sulfuric acid-anthrone colorimetric assays. Purified polysaccharides (BLPS) were separated from the four varieties P. nigra (Lodd.) Munro (PN), ...

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Rapid screening for anthocyanins in cane sugars using ESR spectroscopy

21-Sep-2014 | Author(s): Kheamrutai Thamaphat , Bernard A. Goodman , Pichet Limsuwan , Siwaporn Meejoo Smith, Food Chemistry, 2014

Publication date: 15 March 2015 Source:Food Chemistry, Volume 171 Author(s): Kheamrutai Thamaphat , Bernard A. Goodman , Pichet Limsuwan , Siwaporn Meejoo Smith Anthocyanin, which is soluble in water and released into sugar steam during extraction, was investigated in this study. The ...

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Targeted and Nontargeted Wine Analysis by 1H NMR Spectroscopy Combined with Multivariate Statistical Analysis. Differentiation of Important Parameters: Grape Variety, Geographical Origin, Year of Vintage

29-May-2013 | Rolf Godelmann; Fang Fang; Eberhard Humpfer; Birk Schütz; Melanie Bansbach; Hartmut Schäfer; Manfred Spraul, Journal of Agricultural and Food Chemistry, 2013

The authenticity, the grape variety, the geographical origin, and the year of vintage of wines produced in Germany were investigated by 1H NMR spectroscopy in combination with several steps of multivariate data analysis including principal component analysis (PCA), linear discrimination analysis ...

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Assessment of DFG-S19 method for the determination of common endocrine disruptor pesticides in wine samples with an estimation of the uncertainty of the analytical results

26-Nov-2012 | Füsun Okçu Pelit, Hasan Ertaş, Işıl Seyrani, F. Nil Ertaş, Food Chemistry, 2012

A gas chromatographic method for the determination of endocrine disruptor pesticides (Chlorpyrifos, Penconazole, Procymidone, Iprodione, Bromopropylate and Lambda-Cyhalothrin) in wine samples is described. A general DFG-S19 method for residual pesticide determination in all kind of food stuff was ...

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Comparison of different methods to quantify fat classes in bakery products

08-Oct-2012 | Jae-Min Shin, Young-Ok Hwang, Ock-Ju Tu, Han-Bin Jo, Jung-Hun Kim, Young-Zoo Chae, Kyung-Hun Rhu, Seung-Kook Park, Food Chemistry, 2012

The definition of fat differs in different countries; thus whether fat is listed on food labels depends on the country. Some countries list crude fat content in the ‘Fat’ section on the food label, whereas other countries list total fat. In this study, three methods were used for determining fat ...

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Non-volatile organic analysis of uranium ore concentrates

09-Aug-2012 | A. K. Kennedy, D. A. Bostick, C. R. Hexel, R. R. Smith, J. M. Giaquinto, Journal of Radioanalytical and Nuclear Chemistry, 2012

In support of nuclear safeguards and non-proliferation efforts, Oak Ridge National Laboratory is responsible for characterizing uranium ore concentrate (UOC) samples obtained from two ore mining and milling sites. A sorptive extraction method has been developed for analysis of non-volatile ...

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Hydrolyzable tannin analysis in food

30-Jul-2012 | Panagiotis Arapitsas, Food Chemistry, 2012

The discovery of plant polyphenols in food is perhaps one of the biggest breakthroughs in modern food science. Plant polyphenols are known for their role in food quality and safety, since they contribute significantly to taste, flavour, colour, stability etc., while they are increasingly ...

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