scholarly journals The Use of Nanominerals in Animal Nutrition as a Way to Improve the Composition and Quality of Animal Products

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Damian Konkol ◽  
Konrad Wojnarowski

The demand for protein of animal origin and consumer awareness has been systematically increasing over recent years. This fact obliges breeders to provide animals with the best possible breeding conditions, which will condition the productivity of animals and the quality of products obtained from them. Nowadays, this is especially important because consumers are looking for food that is characterized by prohealth properties, a longer shelf life, and high sensory quality. Good results in improving the composition and quality of products of animal origin bring the use of nanominerals in animal nutrition. The purpose of this work was to collect and systematize knowledge related to the possibility of improving the composition and quality of animal products using minerals in the form of nanoparticles in animal nutrition.

2016 ◽  
Vol 16 (1) ◽  
pp. 3-31 ◽  
Author(s):  
Robert Gąsior ◽  
Krzysztof Wojtycza

Abstract The aim of this article is to examine how the sense of smell and aroma compounds influence the quality of food of animal origin, and to review gas chromatography-olfactometry methods of volatile substances analysis that can help to promote regional animal products. Smell and smell-inducing compounds play an important role in human life. People have made use of aromatic herbs and spices for ages. The classification of smells was developed by, among others, Aristotle, Linnaeus, Zwaardemaker, as well as Amoore, the creator of the stereochemical theory of olfaction. Smell is also of exceptional importance in a consumer’s evaluation of food quality. Achievements in the area of chromatography, mass spectrometry and olfactometry have contributed to the development of tests for the content of volatile compounds in food materials, e.g. milk, cheese or meat. Analysis of these compounds is more and more often applied to regional products that are commonly characterised by different olfactory properties. The study’s results of raw meat of different animal species show that nutria meat and mutton differ the most from others. Apart from genetic factors, meat composition depends on feeding method, quality and type of fodder, method of cutting, meat seasoning, pH and temperature of processing. Chromatographic and olfactometric tests on animal products, in conjunction with chemometrics, can contribute to the development of reliable characteristics and help to identify the products’ origin. These tests are becoming an inseparable part of the policy of promotion of regional products with specific taste and olfactory properties.


Author(s):  
Silvina Patricia Meriles ◽  
Roxana Piloni ◽  
Georgina Vanesa Cáceres ◽  
María Cecilia Penci ◽  
María Andrea Marín ◽  
...  
Keyword(s):  

2011 ◽  
Vol 393-395 ◽  
pp. 717-723
Author(s):  
Sheng Jun Chen ◽  
Lai Hao Li ◽  
Chang Hu Xue ◽  
Xian Qing Yang ◽  
Yan Yan Wu ◽  
...  

In this study, the pH, total volatile base nitrogen (TVB-N) amounts, total viable counts (TVC) of microbial flora, and the sensory quality of liquid-smoked tilapia fillets were analyzed under different storage conditions. Lengthy storage caused, the smoked flavor to disappear and juice seeped from the samples. Over time, it was found that the pH of the products decreased and then subsequently increased, whilst the amount of TVB-N showed an overall increasing trend. Under all storage conditions tested, the TVC of microbial flora slowly increased, followed by a sharp increase, and then stabilized. These results showed that vacuum-packed products stored at low temperatures were highly stable; hence this storage method can effectively guarantee the quality of liquid-smoked tilapia fillets and the extension of the shelf life.


Author(s):  
Dorota Zielińska ◽  
Beata Bilska ◽  
Katarzyna Marciniak-Łukasiak ◽  
Anna Łepecka ◽  
Monika Trząskowska ◽  
...  

Food labelled with a “best before” date has a long shelf life. This study aimed to examine the respondents’ knowledge and understanding regarding the labelling on food products, as well as to assess the microbiological, physico–chemical and the sensory quality of selected durable food products on and after the date specified by the manufacturer. Two methods were used—a survey and laboratory tests. It was found that the majority of respondents have difficulty distinguishing and understanding the terms on the label and that a significant proportion of the respondents consume food products after the “best before” date. Laboratory tests of milk, pasta, mayonnaise and jam confirmed the microbiological safety of the products even six months after the “best before” date. Other features (texture, colour and sensory quality) slightly changed after one month for milk and mayonnaise (the colour had become more yellow) and after three months for pasta (its hardness had decreased) and jam (it had become browner). The possibility of extending the “best before” dates of selected durable foods could be considered, which could allow such products to legally be handed over to public benefit organisations, thereby reducing food wastage.


Foods ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1001
Author(s):  
Mirosław Słowiński ◽  
Joanna Miazek ◽  
Marta Chmiel

The aim of this study was to evaluate the quality of model homogenized sterilized canned meat products produced with wheat fiber preparations (WF 200 R or WF 600 R) with different fiber lengths used in the amount of 3% or 6% by weight of the batter. Basic chemical composition (water, protein, fat, collagen and salt content), pH level, water activity, thermal drip, CIEL*a*b* color components, texture parameters (TPA, shear force) and sensory quality were determined. The addition of 3% or 6% of wheat fiber preparations did not affect the basic chemical composition, water activity and pH of products. The 6% addition of both fiber preparations caused lightening of the color of the meat blocks. Products with the addition of both wheat fiber preparations were characterized by significantly (p ≤ 0.05) higher hardness than the control product. Sensory quality of products, except tastiness, with the addition of wheat fiber preparations did not differ from the control product. There was no significant effect of wheat fiber length on the quality of meat blocks. Both lightening the color of canned meat blocks produced with the addition of wheat fiber preparation, as well as increasing their hardness, is desirable and contributes to increasing the quality of products.


2014 ◽  
Vol 1051 ◽  
pp. 378-382
Author(s):  
Wei Qing Lan ◽  
Jing Xie ◽  
Feng Zhu ◽  
Rui Qi Zhu

The effects of modified atmosphere packaging (MAP: 80%CO2/20%O2) and chitosan (CS: 10.0g/L) on the shelf-life of pomfret (Pampus argenteus) fillets during chilled storage were studied. Quality assessment was based on biochemical (total viable counts (TVC), total volatile base nitrogen (TVB-N), tri-methylamine (TMA-N), K-value, pH value) and sensory analysis indices determination. The results showed that MAP and CS could keep the sensory quality of Pampus argenteus, delay its deteriorating speeds and slow down the increase of K-value effectively. Compared with the control samples, the shelf-life of pomfret samples in MAP and CS stored at 4±1°C were 10, 12d respectively.


Author(s):  
Эльза Венеровна Мигранова

Целью данной статьи является рассмотрение отражения в паремическом наследии башкирского народа такой важной составляющей системы жизнеобеспечения, как традиционная пищевая культура, а также прошлых хозяйственных занятий народа. Многие башкирские пословицы дошли до нас из глубокой древности, некоторые появились несколько позднее, иные — даже ближе к нашему времени. В качестве основного источника нами использованы башкирские пословицы в переводе на русский язык из 7-го тома свода «Башкирское народное творчество» (Уфа, 1993); оригиналы пословиц на башкирском языке содержатся в издании «Башkорт халыk ижады» (Уфа, 1980). Значительный вклад в сбор и изучение паремического наследия башкир внесли дореволюционные и советские исследователи башкирского края, а также современные ученые-фольклористы. Среди них особо следует выделить доктора филологических наук Ф. А. Надршину, сфера научных интересов которой, в числе прочих вопросов, касалась и изучения паремического наследия башкирского народа. Из пословиц можно получить представление и о древнейших, допроизводственных видах хозяйственной деятельности башкир (охота, рыболовство, собирательство, в том числе собирательство меда диких пчел — бортничество), и о производящих — скотоводство, птицеводство, земледелие, садоводство и огородничество. Продукты питания, о которых упоминается в башкирских пословицах, можно условно разделить на несколько категорий — это продукты животного происхождения (мясо, молоко, яйца, рыба); растительная пища (крупы, злаки, овощи, дикие коренья и травы); а также мед, специи и т. д. Большое внимание в пословицах уделялось качеству продуктов; в них отображен и порядок приема пищи; гостеприимство народа, традиционные башкирские праздники и обряды, а также пища, приготовляемая к ним; пищевые табу, соблюдение которых было обязательным в башкирском обществе и т. д. Так, например, осуждалось пьянство; водка считалась причиной многих болезней и даже смерти. В народной среде было принято бережное, рачительное отношение к продуктам питания, что также нашло отражение в пословицах и поговорках. В далеком прошлом у башкир, как у многих других язычников, с пищей были связаны определенные культы и поверья. К тому же, сохранившиеся в народной памяти отголоски неурожайных голодных лет, дали значительный материал для появления пословиц о необходимости ценить еду. Исходя из анализа имеющихся материалов, можно еще раз подтвердить, что пословицы — это ценный источник для изучения истории башкирского народа, его духовной и материальной культуры. The purpose of this article is to consider the reflection in the paremic heritage of the Bashkir people of such an important component of the life support system as traditional food culture, as well as the past economic activities of the people. Many Bashkir proverbs originated come down to us from ancient times, some appeared a little later, others-even closer to our time. As the main source, we used Bashkir proverbs translated into Russian from volume 7 of the series “Bashkir folk Art” (Ufa, 1993); The originals of proverbs in the Bashkir language are contained in the publication “Bashkort Halyk Izhady” (Ufa, 1980). A significant contribution to the collection and study of the Bashkir paremic heritage was made by pre-revolutionary and Soviet researchers of the Bashkir territory, as well as modern folklore scientists. Among them, it is particularly necessary to highlight F. A. Nadrshina, whose sphere of scientific interests, among other issues, concerned the study of the paremic heritage of the Bashkir people. The food products mentioned in Bashkir proverbs can be divided into several categories: animal products (meat, milk, eggs); vegetable food (cereals, vegetables, wild roots and herbs); fish, honey, spices, as well as dishes prepared from them. Much attention was paid to the quality of products in the paremias; they also reflect the order of eating; the hospitality of the people, traditional Bashkir holidays and rituals, as well as food prepared for them; food taboos, the observance of which was mandatory in Bashkir society, etc. For example, drunkenness was condemned; vodka was considered the cause of many diseases and even death. Among the people, a careful, prudent attitude to food was promoted, which was also reflected in proverbs and sayings. In the distant past, the Bashkirs, like many other pagans, had certain cults and beliefs associated with food. In addition, the echoes of the lean famine years preserved in the people's memory also provided significant material for the appearance of proverbs about the need to appreciate food. Based on the analysis of the available materials, we can conclude that proverbs are a valuable source for studying the ethnography of Bashkirs, its spiritual and material culture.


2017 ◽  
Vol 119 (10) ◽  
pp. 2161-2171
Author(s):  
Kamolnate Kitsawad ◽  
Blessing Amarachi Joseph ◽  
Tatsawan Tipvarakarnkoon

Purpose The purpose of this paper is to examine the changes in sensory qualities of jaew sauce as heat is applied and to determine its acceptance level among Thai and foreign consumers. Design/methodology/approach Jaew sauce was heated for six hours and samples were collected at 1.5 hours interval. The color of jaew sauce was measured using color spectrophotometer and consumers examined the underlying sensory qualities of jaew sauce using sorting technique. A total of 40 Thai and foreign consumers were asked to sort the commercial and the heated jaew sauce samples according to the similarities and dissimilarities in sensory characteristics and provide descriptions for explanation of each group. A consumer test with 100 Thai and foreign consumers was also conducted to determine the acceptance of jaew sauce. Findings Alterations in the sensory qualities, mainly color, were observed. Prolong heating resulted in darker color. The sorting results showed that Thai and foreign consumers have similar perception of jaew sauce. Similar groupings of jaew sauce was observed, which could be divided into four groups, commercial, 0 hour heating, 1.5 and 3 hours heating, and 4.5 and 6 hours heating. Agreeing results of both Thai and foreign consumers showed that commercial and 0 hour heating samples were most preferred and the acceptance of jaew sauce decreased as it was heated. Originality/value Despite the extensive usage of jaew, very few are available commercially in the market. The fact that Thai and foreign consumers have similar preference infer that jaew sauce has a high potential to be adopted and accepted among foreigners to a large extent if available commercially. This study also provides a basis into further research on an appropriate packaging and shelf-life study of jaew sauce for commercial purposes.


Sign in / Sign up

Export Citation Format

Share Document