Antioxidants in Olive Oil

Olive oil contains polyphenols, vitamin E, and other natural antioxidants that are the oil’s own natural preservatives. Antioxidants dampen the autogeneration of peroxides, delaying the onset of oxidation and rancidity. As a result, antioxidants increase the oil’s shelf life. Among the antioxidants, there are compounds that have been associated with human health benefits. They absorb free radicals and appear to have a positive impact on cardiovascular and cancer ailments, as attributed to the Mediterranean diet. The main objectives of this chapter were to investigate the phytochemical profile such as phenolic compounds and tocopherols, and in vitro, to study the biological potential (antioxidant capacity) of the olive oil. Furthermore, the relationship and correlations between phytochemical and antioxidant capacity have been highlighted. The investigation of these compounds supported by verifiable evidence may explain their role in the quality and authenticity of olive oil as well as their contribution to human health

Tomato lycopene is a natural antioxidant and can alleviate hypercholesterolemia

Lycopene of tomato wastes was extracted and determination. The level of tomato lycopene was 145.50 ppm. An aliquots of the concentrated tomato lycopene, represent 100, 200, 400 and 800 ppm; grade lycopene (200 ppm) and butylated hydroxyl toluene (BHT, 200 ppm) were investigated by the 1,1- diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging method. These compounds were administered to rats fed on hypercholestrolemic diet daily form 10 weeks by stomach tube. Serum lipid contents (total lipids, total cholesterol, high density lipoprotein cholesterol and low density lipoprotein cholesterol), oxidative biomarkers (glutathione peroxidase and malonaldhyde), the liver (aspartate aminotransferase, alanine aminotransferase and alkaline phosphatase activities) and kidney (uric acid, urea and creatinine) function testes were measured to assess the safety limits of the lycopene in tomato wastes. The data of the aforementioned measurements indicated that the administration oftomato lycopene did not cause any changes in liver and kidney functions. On the contrary, rats fed on hyperchoestrolemic diet induced significant increases in the enzyme activities and the serum levels of total lipids, total cholesterol, low and high density lipoprotein and decreased levels of the glutathione peroxidase and malonaldhyde

Panel 5 Rural Intangible Cultural Heritage

Rural areas is the place where rural intangible heritage is found rich and diverse, whereas vulnerable to fast social, cultural, political and economic transformations, in particular in developing and underdeveloped areas. Although the concept of Intangible Cultural Heritage (ICH) has been established in UNESCO and accepted by many ICH Convention signatories, it has not been consistently adopted and implemented from international level to local level without divergencies. An analysis of rural ICH is to analyse how rural traditional culture, memories and past are used by different stakeholders for current society. (Re)defining rural ICH is a way to both rethink and develop the existing concepts of cultural heritage held by national and institutional discourses. This panel, which investigates three cases in China and Egypt, will provide evidence and theoretical rethought on the making and use of the concept of ICH in developing countries where the tangible heritage discourses have been well established and the intangible heritage discourse is polemical. These three papers will present diverse and emerging uses and discourses of ICH in terms of conservation, exhibition, commodification, education and musealisation from various perspectives. In particular, this panel will address these issues: 1. How is ICH, or intangible heritage, used in rural areas in the fields of heritage tourism, museum, cultural industries, community development and other purposes? 2. How tourists, (non)-local visitors and other stakeholders contribute to the making of ICH through their cultural practices? 3. How can tangible and intangible heritage be understood and managed in an integrated/holistic approach such as the living heritage approach? 4. Are existing tangible-centred mechanism and managerial tools still useful for rural ICH which relates to local community, tangible elements and the landscape? If not, what improvements should be made

Quinoa (Chenopodium Quinoa Willd.) is a highly nutritious source of grains

The main objective of this paper is the chemical evaluation of quinoa seeds (Chenopodium quinoa wild). The chemical composition, mineral content, active compounds (polyphenols, flavonoids, and tocopherols), vitamins, amino acids, and fatty acids of quinoa seeds were estimated. The results indicate that quinoa seeds are rich in minerals, the most important of which are Ca and K. They are also rich in biologically active compounds that play an effective role as antioxidants, the most important of which are phenolic compounds (455 ppm), flavonoids (245 ppm), tocopherols (505 ppm), and finally vitamins (A, C, and D), which are effective in preventing many diseases. The results also showed that quinoa seeds contain essential amino acids, which amount to 35.78 g/100 g, respectively, so it contains high-quality protein.Also, the main essential fatty acid in quinoa seeds is Linoleic (55.00%), which is known as Omega 6, then alpha-linolenic acid (9.49%).Therefore, quinoa seeds have a distinct composition of important nutritional elements and are considered a high-nutrition alternative to grains. Finally, more studies should be conducted on these high nutritional value seeds and they should be included in many products as an alternative to grains

Utilization from leaves of olive and pomegranate as a source of bioactive components

Crude juices of olive and pomegranate leaves were obtained by hydraulic press. The level of polyphenolic compounds in the (olive and pomegranate) juice were510.00 and 722.00ppm. Aliquots of the concentrated olive and pomegranate juice leaves, represent 200, 400, 800 and 1600ppm and butylated hydroxy toluene (BHT, 200ppm) were investigated by Rancimat method at 100ºC and 1, 1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging method. These compounds were administrated to rats daily for 6 weeks by stomach tube. The liver (Aspartate aminotransferase, alanine aminotransferase and alkaline phosphatase activities) and kidney (bilirubin, uric acid and creatinine) function tests and serum contents (total lipids, total cholesterol and low and high-density lipoproteins) were measured to assess the safety limits of the phenolic compounds in the olive and pomegranate juice leaves. The data of the aforementioned measurements indicates that the administration of olive and pomegranate juice leaves did not cause any changes in liver and kidney functions. On the contrary, BHT at 200ppm induced significant increases in the enzyme activities and the serum levels of total lipids, uric acid and creatinine

The impact of visual ergonomic control elements and learning methods on developing website design skills among educational technology students

The main goal of a website\u27s ergonomics is to meet the user\u27s specific needs in the most efficient way, ensuring ease of interaction with the site\u27s content. This includes making text easier to read, making information easier to find, and making actions easier, such as requesting a product or service, Therefore, the current study aimed to study the effect of visual ergonomic control elements and learning methods on developing website design skills among educational technology students, The sample consisted of 60 students in the Department of Educational Technology and Computers at the Faculty of Specific Education, Kafr Elsheikh University, in the e-learning course. The students were divided into four experimental groups of 15 students each, by classifying the students into two categories of learning methods (visual - auditory), and each category of learning methods. Previous learning is divided into two categories according to the use of (visual ergonomic control - traditional learning method) The results of the research found that students with a visual learning style and the use of ergonomic adjustment factors are more effective in enhancing students’ website design skills

Effect of Casting Conditions on the Fracture Strength of Al-5 Mg Alloy Castings

During the transient phase of filling a casting running system, surface turbulence can cause the entrainment of oxide films into the bulk liquid. Previous research has suggested that the entrained oxide film would have a deleterious effect on the reproducibility of the mechanical properties of Al cast alloys. In this work, the Weibull moduli for the ultimate tensile strength (UTS) and % elongation of sand cast bars produced under different casting conditions were compared as indicators of casting reliability which was expected to be a function of the oxide film content. The results showed that the use of a thin runner along with the use of filters can significantly eliminate the surface turbulence of the melt during mould filling which would lead to the avoidance of the generation and entrainment of surface oxide films and in turn produce castings with more reliable and reproducible mechanical properties compared to the castings produced using conventional running systems