Applications in Moldova

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    Determination of amino acids in fodders and raw materials using high performance capillary electrophoresys method

    The method enables fast quantitative determination in feeds, mixed fodders, and raw materials of the following amino acids: arginine, lysine, tyrosine, phenylalanine, histidine, leucine and iso-leucine (total), methionine, valine, proline, alanine, glycine, cystine, tryptophan, aspartic and glutamic acids. Since during the sample decomposition asparagine and glutamine are hydrolyzed to aspartic and glutamic acids, respectively, the content of these two acids represents the total content of both the acids and the amides. 

    By Lumex Instruments Group Distributor in Chisinau, MOLDOVA.

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    Determination of fructose, glucose, and saccharose in beverages, fruit and vegetable products, honey, and bioactive food additives

    Introduction

    The technical directives and regulatory requirements specify the total content and relative contents of fructose, glucose and saccharose in juices, nonalcoholic and alcoholic beverages (incl. wines and winemaking materials), fruit and vegetable products, honey, and bioactive food additives. 

    By Lumex Instruments Group Distributor in Chisinau, MOLDOVA.

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    Quality control of grains and grain products

    By Lumex Instruments Group Distributor in Chisinau, MOLDOVA.

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    Determination of amino acids

    The method enables fast quantitative determination in feeds, mixed fodders, and raw materials of the following amino acids: arginine, lysine, tyro sine, phenylalanine, histidine, leucine and iso -leucine (total), methionine, valine, proline, alanine, glycine, cystine, tryptophan, aspartic and glutamic acids.

    Since during the sample decomposition asparagine and glutamine are hydrolyzed to aspartic and glutamic acids, respectively, the content of these two acids represents the total content of both the acids and the amides.

    By Lumex Instruments Group Distributor in Chisinau, MOLDOVA.

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    Determination of whey proteins in milk samples by capillary gel electrophoresis

    One of the tests for authenticity of milk and dairy foods is the qualitative and quantitative composition of whey proteins and their ratio. Caseins dominate in cow’s milk before its processing (about 80% of total protein), whereas caseins are almost absent in the whey composition whose main components are the following:

    • β-lactoglobulins
    • α-lactalbumin
    • bovine serum albumin
    • immunoglobulins
    • lactoferrin and other minor proteins. 

    By Lumex Instruments Group Distributor in Chisinau, MOLDOVA.

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    Determination of caffeine and theobromine in tea, coffee, cocoa, and herbal products

    The determination of caffeine and theobromine content in tea, coffee, cocoa, foodstuffs and in herbal products ensures safety and quality control of the products and identification of adulterants. 

    By Lumex Instruments Group Distributor in Chisinau, MOLDOVA.

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    Quality control of milk products

    In order to maintain high quality of milk products, it is necessary to monitor process quality as rapidly as possible, so that a relevant technological process could be promptly corrected. The most important quality factors of milk products are fat, protein, moisture (total solids), SNF, sugar, salt, lactose and titrated acidity. Commonly, it takes a few hours to make such type of analyses by traditional methods. The use of an InfraLUM® NIR analyzers reduces the analysis time to a couple of minutes.

    By Lumex Instruments Group Distributor in Chisinau, MOLDOVA.

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    Quality control of milk and milk products

    In order to maintain high quality of milk products, it is necessary to monitor process quality as rapidly as possible, so that a relevant technological process could be promptly corrected. The most important quality factors of milk products are fat, protein, moisture (total solids), SNF, sugar, salt, lactose and titrated acidity. Commonly, it takes a few hours to make such type of analyses by traditional methods. The use of an InfraLUM® NIR analyzers reduces the analysis time to a couple of minutes. 

    The method is based on measuring the transmission spectrum of a sample in the near-IR spectral region and subsequent determination of the analyzed parameters/constituents using a calibration model. Transmission measurement provides highest accuracy and reproducibility of the measurements. 

    By Lumex Instruments Group Distributor in Chisinau, MOLDOVA.

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    Determination of tryptophane in fodders and raw materials using high performance capillary electrophoresys method

    The method enables fast quantitative determination of amino acid tryptophane in feeds, mixed fodders, and raw materials. 

    By Lumex Instruments Group Distributor in Chisinau, MOLDOVA.

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    Determination of organic acids in feedstuff, silage, haylage, and fermentates for biogas plants

    To provide the proper conditions for silage or haylage storage in agriculture it is necessary to regularly monitor the formation of certain organic acids in it. For example, the formation of butyric acid can indicate spoiling of material. Formic or propionic acids can be artificially added to increase the nutritional quality. The same materials and some other biodegradable waists (agricultural residues, sewage sludge, etc.) are also used in biogas plants, where the fermentation process must be carefully monitored, in particular, by the determining the certain organic acids. The present method allows determination of some important organic acids like acetic, lactic, butyric, propionic, and formic in feedstuff additives, silage, haylage and in different biodegradable materials of biogas plants. Some other organic acids (oxalic, fumaric, etc.) can be also determined within this method. 

    By Lumex Instruments Group Distributor in Chisinau, MOLDOVA.

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