Abstract:
A composition comprising at least one purified pep- tide or proteinis disclosed. The at least one pep- tide or protein comprises at least one amino acid stretchhaving the sequence QQPFP. The use, a method for purifying the same and a method for quantifying the amount of gluten present in a food sampleare also disclosed.
Abstract:
No processo de fabricação do açúcar, as enzimas alfa-amilases de termoestabilidade intermediária podem resistir aos tratamentos térmicos empregados e continuarem ativas nas etapas posteriores do processo, acarretando em defeitos no produto final e prejuízos económicos. Para evitar tal tipo de problema, é proposto um método de detecção de atividade residual de alfa-amilase nas amostras de açúcar, baseado na viscosidade da amostra através do tempo de queda ("Falling Number"). O método se baseia no método original do "Falling Number", utilizado para medir atividade diastática em farinhas de trigo, e consiste nas seguintes etapas sequenciais: a. preparar uma amostra líquida do açúcar ou intermediários em teste na concentração de 50 a 600 g/L e com teor de sólidos solúveis variando de 5 a 60° Brix; b. adicionar a amostra liquida de açúcar ou intermediários obtida na etapa (a) em um recipiente contendo uma ou mais fonte de amido, com 1,5 g a 10 g de amido, podendo adicionar cálcio bivalente na concentração de 30 a 100 ppm em relação ao teor de amido; c. homogeneizar a solução obtida na etapa (b); d. aquecer a solução obtida na etapa (c) a temperatura de 60°C a 100° C, ao mesmo tempo em que dita solução é agitada com uma haste até sua gelatinização, que a viscosidade obtida varia entre 400 e 600 cP; e. soltar a haste no início do recipiente; f. verificar o tempo de queda da haste na solução gelificada, ao longo do comprimento total do recipiente; g. comparar o tempo de queda obtido na etapa (f) com o tempo de queda de uma amostra de açúcar sem alfa-amilase (amostra controle).
Abstract:
The present invention relates to a method and an arrangement for measuring the smoothness of grains. In one embodiment, the arrangement includes a channel for supplying grains, especially rice grains, an obstacle arranged at the channel to slow down grains falling on the obstacle, so that the flow of grains forms a heap on the obstacle and an image capturing device placed facing the obstacle. The image capturing device is arranged to capture an image of the heap, where the area under the curve of the captured heap image indicates the degree of smoothness of the grains or the course of the curve of the captured heap image indicates the degree of smoothness of the grains.
Abstract:
The present invention relates to a method and an arrangement for measuring the gloss of grains, in particular rice grains. In one embodiment, the method includes emitting a light beam to the surface of a grain by means of a light emitting device (13), aligning a light sensing device (11) in a sensing position in relation to the light emitting device (13) sensing the light beam of the light emitting device (13) reflected by the surface of the grains in direction of the light sensing device (11), capturing a photometric image of the surface of the grains by means of the light sensing device (11) sensing the reflected light beam, assigning an intensity value to a plurality of image elements of the captured photometric image, wherein the photometric image is composed of the plurality of image elements, quantifying the reflected light beam in predefined ranges of intensities by means of a processing unit, cumulating, for each of the predefined ranges, the number of image elements having an intensity values, within a certain range to density value and assigning to each of the ranges the corresponding density value, capturing a spread value for the density values of the predefined ranges by means of the processing unit, wherein the spread value is captured by measuring the deviation of the density values of the predefined ranges and assigning a quality surface measuring parameter to the captured photometric image, wherein the surface measuring parameter is a measure the spread value.
Abstract:
The present disclosure provides methods for determining the film forming potential of food products. In a general embodiment, a method for determining the film forming potential of a food product is provided and includes providing a temperature- control device having a processor and a computer readable medium storing instructions which, when executed, cause the processor to cycle an interior temperature of the temperature-control device between different temperatures in a predetermined amount of time. The methods further include placing a packaged food product in the temperature-control device, and causing the processor to execute the stored instructions.
Abstract:
A method and composition for extracting an analyte from a test sample such as grain, so as to determine whether the test sample is contaminated with a toxin. The method is particularly useful for detecting the presence in a batch of grain of a mycotoxin, such as for example aflatoxin, ochratoxin, T2, zearalanone, vomitoxin (deoxynivalenol a/k/a DON), patulin and fumonisin. Extraction is performed with use of a composition that includes a proteinaceous material, such as albumin, as an extraction agent.
Abstract translation:一种用于从诸如谷物的测试样品中提取分析物的方法和组合物,以便确定测试样品是否被毒素污染。 该方法特别可用于检测一批霉菌毒素(例如黄曲霉毒素,赭曲霉毒素,T2,泽西拉酮,呕吐毒素(脱氧雪腐镰刀菌烯醇a / k / a DON),patulin和伏马菌素)的存在。 使用包含蛋白质物质如白蛋白的组合物作为提取剂进行提取。
Abstract:
Die Erfindung betrifft eine Anordnung und ein Verfahren zur kostengünstigen Inline-NIR-Messung, insbesondere zur kostengünstigen Inline-NIR-Messung von Inhaltsstoffen, Qualitätsparametern oder allgemein Produkteigenschaften von Getreidekörnern u. a. und deren Bestandteilen in Produktströmen (3) in Mehl- oder Futtermühlen oder dergleichen. Mit mindestens einer Messsonde (1) werden vorteilhaft an frei fliessendem Produkt (3) in einem Strömungsrohr die Reflexionsspektren aufgenommen und an eine räumlich hiervon getrennt angeordnete Auswertegerät (2) mit integriertem Spektrometer (12) übertragen. Die vom Auswertegerät (2) ermittelten Messwerte werden an eine Steuereinheit (24) oder an ein Leitsystem (22) übertragen und können dort zum Monitoring und/oder Regeln der Prozesse bzw. Anlagen benützt werden. Durch die einfache Produktpräsentation sowie die Mehrfachbenutzung der Auswertegerät können die Kosten pro Messstelle im Vergleich zu bis anhin eingesetzten NIR-Systemen stark gesenkt werden.
Abstract:
A method and apparatus for measuring water absorbance in multi-phase systems are disclosed. The apparatus comprises a container and a mixer for mixing water and a material at a constant rate to form a multi-phase system, such as dough, and a pump for adding water to the container at a constant rate. A source of a range of wavelengths of light energy in the NIR spectrum irradiates the multi-phase system, which reflects the light. A detector uses NIR spectrophotometry to detect the reflected light at a plurality of time points during the mixing to obtain a plurality of reflection spectra. A processor coupled to be in communication with the pump, the source of light energy and the detector plots peak height values of the reflection spectra with respect to time, which are indicative of the water absorption of the multi-phase system over time.
Abstract:
Die Erfindung betrifft ein Verfahren zur Bestimmung der Absorptionsfähigkeit und Knetbarkeit eines in einer Mischkammer befindlichen Mediums A mit einem Medium B, wobei in der Mischkammer mindestens ein oder mehrere Knet/Rührkörper- für die Vermischung des Mediums A mit dem von außen geregelt zugeführten Medium B sorgen, dass dadurch gekennzeichnet ist, das die Zugabe des Medium B automatisch bei einer Winkelstellung α der Knet/Rührkörper zueinander erfolgt, die zuvor für jeweilige Medienpaare empirisch ermittelt wird, derart, dass bei Zugabe von Medium B zu Medium A der Anstieg des auf die Knet/Rührkörper und damit auf den Antrieb derselben wirkenden Drehmoments angenähert linear über die Zeit erfolgt, bis eine homogene Mischung des gesamten Materials vorliegt.
Abstract:
A method of assessing cereal grain for staining comprising subjecting a multiplicity of grain kernels to diffuse lighting, capturing images of each grain kernel and processing each image with masking to exclude the edge portion of the grain and the brush region to determine the indicative portion of the grain and analysing the image thereof to determine whether the extent of colouration and distribution subsists above a threshold value for the grain to be classified as defective in terms of pink stain or blackpoint or field fungi or otherwise whether the grain is sound, taking into account that sound grain may be relatively uniform in colour but may also be mottled, the image data being processed to discriminate against false positives having regard to the spatial distribution of apparent staining and its variability in colour across the germ and body portions of the grain kernel.