scholarly journals Food Security in the Region: Statistical Analysis, Modelling and Forecasting

Author(s):  
В.В. Жолудева

Проведён статистический анализ потребления основных продуктов питания населением Ярославской области за период с 2007 г. по 2018 г. Оценка потребления продуктов питания рассмотрена на основе описательных показателей статистики. Удовлетворение потребности в основных продуктах питания оценивалось путём сопоставления фактического потребления и рациональной нормы по каждой группе продуктов. Для оценки влияния факторных показателей на динамику душевого потребления основных продуктов питания было проведено моделирование с применением корреляционно-регрессионного анализа, были построены три модели: двухфакторная модель потребления молока и молочных продуктов, многофакторная модель потребления картофеля и однофакторная модель потребления фруктов. Оценка качества построенных моделей была оценена с помощью F-критерия Фишера, а для оценки статистической значимости параметров моделей был применён t-критерий Стьюдента. Во всех моделях наблюдаемое значение критерия меньше фактического значения критерия, то есть гипотезы о значимости моделей принимаются с вероятностью ошибки 0,05. В исследовании проведено моделирование и прогнозирование основных критериальных показателей продовольственной безопасности по Ярославской области. Для этого были построены трендовые модели, адекватность которых осуществлялась на основе критерия Дарбина-Уотсона, а проверка на точность с помощью следующих статистических показателей: средней ошибки аппроксимации и средней квадратической ошибки. Для двух продуктов питания – картофель и овощи оптимальной является экспоненциальная модель, для остальных продуктов (фрукты и ягоды, мясо и мясопродукты, молоко и молочные продукты, а также яйца) лучшим для прогнозирования является параболический тренд. Выбранные модели позволяют описать закономерности развития анализируемого явления наиболее адекватно и точно. A statistical analysis of the consumption of basic food products by the population of the Yaroslavl region for the period from 2007 to 2018 was carried out. The assessment of food consumption was considered on the basis of descriptive indicators of statistics. Satisfaction of need for basic food products was assessed by comparing the actual consumption and the rational norm for each group of products. To assess the effect of factor indicators on the dynamics of per capita consumption of basic food products modeling was carried out using correlation-regression analysis, three models were built: a two-factor model of milk and dairy products consumption, a multifactor model of potatoes and a one-factor model of fruit consumption. The assessment of the quality of the constructed models was evaluated using the Fisher F-test, and the Student t-test was applied to assess the statistical significance of the model parameters. In all models, the observed test value is less than the actual test value, that is, hypotheses about the significance of models are accepted with an error probability of 0.05. Modeling and forecasting of the main criterion indicators of food security in the Yaroslavl region were carried out in the research. Trend models were built accomplish this, the efficacy of which was carried out on the basis of the Durbin-Watson model and precision test using the following statistical indicators: mean approximation error and mean quadratic error. For two food products – potatoes and vegetables, the optimal is the exponential model, for other products (fruits and berries, meat and meat products, milk and dairy products, as well as eggs) the parabolic trend is the best for forecasting. The selected models allow you to describe the patterns of development of the analyzed phenomenon most adequately and accurately.

2018 ◽  
Vol 10 (2) ◽  
pp. 21-23
Author(s):  
Maria Adelina Constantinescu ◽  
Mihaela Adriana Tiţa ◽  
Ovidiu Tiţa ◽  
Cristina Bătuşaru ◽  
Cristina Popovici

Abstract Milk and dairy products are some of the most popular and consumed food products. They can be eaten from an early age and bring a significant nutritional contribution to the health of the consumer. The main objective of this study was to identify socio-economic and demographic factors that influence consumer preferences for dairy products. The study was conducted using a questionnaire and targeted two types of dairy products: packaged dairy products and unpackaged dairy products.


2017 ◽  
Vol 17 (3) ◽  
pp. 121-131
Author(s):  
V. A. Bazhanov ◽  
◽  
M. G. Mkrtchyan ◽  
A. K. Voytov ◽  
◽  
...  

Author(s):  
Laura Catalina Timiras

Awareness is a prerequisite in the development of successful brands; in this paper are highlighted, for certain categories of common food products, brands enjoying the highest spontaneous awareness among young people. On the basis of this work are some of the results of a direct research conducted on a sample of 100 students, aged between 18 and 30 years. Common foods are intended for current consumption, serving to meet the dietary needs of consumers. Thus, we studied certain categories of food products with characteristics which make them fall within the common products category: milk and dairy products, meat and cooked meat (except fish), fish and eggs, canned meat (including pate), canned vegetables, bakery, milling products, pasta, breakfast cereals, sugar, eggs, nuts and seeds, oil, margarine. The conducted research has an exploratory character.


Subject China's food supply and demand. Significance China faces two food-security challenges. The first is poverty, which leaves almost one-tenth of the population still undernourished. The second is wealth, which is producing a large and growing population of increasingly affluent people demanding a more varied, protein-rich and toxin-free diet, and in many cases acquiring bad dietary habits that cause health problems. Impacts China will import more food, and acquire more farmland overseas. Direct consumption of rice and wheat will steadily decline while demand for non-staples rises, especially milk and dairy products. Sharply rising demand for meat is likely to be tempered by a government initiative to reduce meat consumption. Domestic food production will remain dominated by grain, especially cereals (rice, wheat and corn) and soya. The main burden on producers will be to provide grain for indirect purposes, above all, to supply feed for livestock.


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 %.


1910 ◽  
Vol 10 (7-8) ◽  
pp. 161-198
Author(s):  
K. M. Bykov

In a number of food products, cow's milk occupies an outstanding place. It contains various necessary principles for the nutrition of the human body in the proper proportion, namely, for 100 parts in round numbers, there are: 87 water. Fat 4. fat 4. carbohydrates 4. salts 1.


Author(s):  
Özge Can Niyaz ◽  
İsmail Hakkı İnan ◽  
Duygu Aktürk

The aim of this study is to evaluate the thought of food security provided in dairy products and the determinants in terms of manufacturers in South Marmara Region in Turkey. The primary data obtained from 70 dairy manufacturers were analysed by Factor Analysis and Logistic Regression Analysis. According to this, price fluctuation and increase in the distance from the place where the milk is provided, reasons such as corporatization are factors that cause the lack of food security in dairy products. On the contrary, the likelihood of providing food security in dairy products increases with the increase in financial sustainability, food safety, quantity of milk and dairy products, the ability to produce and store, the number of employees, the degree of milk use.


Author(s):  
T. V. Kurmakaeva ◽  
A. Y. Kozak ◽  
I. D. Seregin ◽  
A. B. Southkin

The order of organization and holding of food fairs, veterinary and sanitary requirements for the sale of food products at the fairs and the features of their veterinary and sanitary examination are considered. Control studies of selected samples of meat of different species of animals, meat products, milk and dairy products, fish and fish products, honey and plant products, as well as feed for non-productive animals that were received at the fair for sale.


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