scholarly journals Evaluation of Some Food Products Produced in Azerbaijan According to the Species Composition and Ecological-Trophic Relations of Fungal Biota

2021 ◽  
Vol 14 (1) ◽  
pp. 147-151
Author(s):  
Bakshaliyeva K.F
2021 ◽  
pp. 12-14
Author(s):  
Николай Анатольевич Жижин

Идентификация пищевого сырья, применяемого для производства продуктов питания, является важным аспектом безопасности здоровья человека. Развитие аллергических реакций, непереносимость отдельных компонентов пищи и т. д. являются поводом для вынесения информации о составе пищевой продукции на этикеточную надпись. Также к важным факторам оценки продуктов питания можно отнести и видовую «чистоту». Этот показатель необходимо учитывать не только в качестве выявления фальсификации продукции более дешевым сырьем, но и для безопасности конечного потребителя. Для идентификации видового состава молока и молочной продукции достаточно успешно используется метод полимеразной цепной реакции. Развитие этого метода привело к появлению различных подходов его использования. Одним из них является метод мультиплексной полимеразной реакции, который позволяет одновременно проводить процесс амплификации различных последовательностей ДНК. Что позволяет использовать данный метод для одновременного определения двух и более видов сельскохозяйственных животных в течение проведения одного ПЦР-анализа. В данной работе показаны возможности применения мультиплексной ПЦР для идентификации молока и молочной продукции. Показано, что в течение одного анализа определяются специфические праймеры, характерные для трех видов животных: коровы, овцы и козы. Применяемая методика также была использована на молочной продукции, прошедшей термическую обработку, в результате чего установлена возможность использования мультиплексной ПЦР для анализа такой продукции. Предел обнаружения при проведении ПЦР-анализа составил 0,1 %. The identification of food raw materials used for food production is an important aspect of human health safety. Development of allergic reactions, intolerance to certain food components, etc. are the reason for placing information on the composition of food products on the label inscription. Species «purity» can also be attributed to the important factors in assessing food products. This indicator must be taken into account not only as a detection of product counterfeiting with cheaper raw materials, but also for the safety of the end consumer. To identify the species composition of milk and dairy products, the method of polymerase chain reaction is quite successfully used. The development of this method has led to the emergence of various approaches to its use. One of which is the multiplex polymerase reaction method, which allows simultaneous amplification of various DNA sequences. That allows you to use this method for the simultaneous determination of two or more species of farm animals during one PCR analysis. In this work, the possibilities of using multiplex PCR for the identification of milk and dairy products were shown. It was shown that during one analysis, specific primers characteristic of three species of animals: cow, sheep and goat are determined. The applied technique was also used on heat-treated dairy products, as a result of which the possibility of using multiplex PCR for the analysis of such products was established. The detection limit for PCR analysis was 0.1 %.


2020 ◽  
pp. 64-70
Author(s):  
Mariya Y. Medvedevskikh ◽  
Anna S. Sergeeva

The article raises the problem of ensuring metrological traceability of the measurement results of indicators of quality and nutritional value for food products and food raw materials: water (moisture), nitrogen (protein, crude protein), fat, ash and carbohydrates. The problem under consideration can be solved by applying reference materials of food composition, traceable to state primary measurement standards GET 173-2017 and GET 176-2019 and primary reference measurement procedures (PRMP), for attestation of measurement procedures and accuracy checking of measurement results. The article discusses the results of the PRMP development of mass fraction of fat, ash and carbohydrates in food products and food raw materials, as well as mass fraction of crude fat (oil content) in oil crops seeds and products based on them. The paper also presents metrological characteristics of reference materials of composition of dry dairy products, grain-milk dry porridges for nutrition of babies, grain dry porridges for nutrition of babies, egg powder, freeze-dried meat products, animal feed. The results of the work allow for building a chain of metrological traceability from GET 173-2017, GET 176-2019 and PRMP to routine measurement procedures, thereby ensuring the uniformity of measurements of nutritional value of food products.


2020 ◽  
Vol 29 (7) ◽  
pp. 48-50
Author(s):  
A.A. Bubnova ◽  
Keyword(s):  

2020 ◽  
pp. 587-611 ◽  
Author(s):  
Elena Viganò ◽  
Federico Gori ◽  
Antonella Amicucci

The central role of quality agri-food production in the promotion of a given territory is actually widely recognized by both the economic and marketing literature and the stakeholders involved in the enhancement process of rural systems. On this basis, this work analyzes one of the finest Italian agri-food products: the truffle. This work tries to point out the main problems characterizing the current regulatory framework, the trade and the production of the Italian truffle sector, emphasizing their causes, consequences and possible solutions.


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