Sunflower halva, popular in countries from Eastern Europe, is made of sunflower tahini, cooked sugar and soapwort root extract.
Lipid fraction in traditional sunflower halva is rich in polyunsaturated fatty acids, susceptible to peroxidation. Oxidation of the lipids is one of the main causes of lipid rich food deterioration leading to formation of off-flavour that negatively affect their quality and shelf life. In this study the initially phase of oxidation in sunflower halva was assessed, using as indicator the peroxide value (PV). The protocol followed was the one described by IDF standard which uses ammonium thiocyanate as Fe(III)-complexing agent.
Halva samples stored at room temperature, in open air conditions for four months, respectively ten months were analyzed. The PV of sunflower halva at 10 months of storage was ~ 2 times higher that the PV of sunflower halva at 4 months of storage.
The samples of sunflower seeds used for the analysis were freshly dehulled and dehulled and then stored at room temperature in open air conditions for four months. The freshly dehulled sunflower seeds had a PV of 4.14 meq O2/Kg fat, similar values with those reported in the literature. The sunflower seeds dehulled and than stored for 4 months at room temperature in open air conditions had a PV of 89.47 meq O2/Kg fat, rancid taste being detected.
Regarding the oxidative stability of sunflower halva, care must be taken on storage conditions and packaging – temperature and oxygen availability. For further studies addition of supplementary antioxidants should be considered.
Aflatoxins (AFs), the secondary metabolites produced by species of Aspergillus, specifically Aspergillus flavus and Aspergillus parasiticus, have harmful effects on humans, animals, and crops that result in illnesses and economic losses. Wheat that is susceptible to these fungi infections through its growth, harvest, transport, and storage, is the most important food in Romania. Therefore, this study sought to present mycotoxins in wheat samples grown in different regions of Transyvania, the results being obtained in the climate of the year 2009-2010. Wheat samples were collected from Turda and Targu Mures.
It was analyzed the presence of aflatoxins B1, B2, G1, G2, using HPTLC in twenty samples of wheat. Percentage of samples found positive for aflatoxin B1, B2, G1, G2 was 10%, 5%, 0%, 0%. Although the percentage of aflatoxin found in wheat is low, these percentages should be considered, in terms of exposure every day to mycotoxins through consumption of cereals and cereal-based products.
Research goal is to highlight the quality of autumn triticale variety Titan and a variety of wheat Turda 2000 found in an polifactorial experience to S.C.D.A. Turda, in order to recovery in bakery. The quality value parameters of this wheat variety and triticale variety in S.C.D.A. Turda climate, obtained in 2008 are between normal limits established by standards, is strongly influenced by biological, ecological and technological factors. The following grain quality parameters were estimated: moisture (%) , test weight (Kg/hl) protein content (%), wet gluten(%) , deformation number(mm) ,falling number (sec), foreign bodies(%); index of expansion (IE cm) ; ash content ; Zelleny (ml).
The paper presents and analyzes the baking quality indices of indigenous wheat varieties (Arieşan, Apullum and Dumbrava) grown at S.C.D.A. Turda during 2008-2009 crop year, under agrofond influence. Results showed that the genetics and technological factors contribute to change in fairly wide limits of chemical composition of wheat grain. Experiencing the three wheat varieties different doses of organic fertilizers (N50P50K50 kg/ha şi N50P50K50 + N50P30 kg/ha), crude protein values range between 13,73% (N50P50K50 kg/ha ) and 15,78% (N50P50K50 + N50P30 kg/ha) in Arieşan variety, between 12,71% (N50P50K50 kg/ha ) şi 15,13% (N50P50K50 + N50P30 kg/ha) in Apullum variety and between 12,95 (N50P50K50 kg/ha ) şi 15,05% (N50P50K50 + N50P30 kg/ha) in Dumbrava variety. Also the values of wet gluten content varies between 32,55% influenced by N50P50K50 kg/ha and between 37,65% - 39,05% influenced by N50P50K50 + N50P30 kg/ha.
This paper analyzes the quality index of baking values regarding some domestic and foreign varieties of wheat, grown in a comparative crop from two counties of Romania Satu Mare and Bihor. The agriculture in the western area and overall in Romania, doesn’t have the characteristics of sustainable agriculture, since the obtained production is far from the performance criteria of European agriculture, poor management of risk factors is one of the causes of this situation.
The research objectives were:
• the establishing the productive potential of varieties of winter wheat
• the unlocking the potential of productive varieties of wheat;
• the correlation of productive characteristics regarding varieties of bread wheat quality
Wheat quality, regadless of its destination, is a key factor determining its market value.
At SCDCB Mures are tested in comparative cultures, every year a large number of domestic and foreign varieties that are aimed at production quality, quality bakery, the degree of adaptability to environmental conditions, tolerance and resistance to various cryptogamic diseases that has wheat.
According to existing regulations in determining pesticide residues in cereal matrix, is required to determine parameters of performance method for both standard methods and those that are made slight changes to improve the method. For the purposes of the above, we done a validation of the QuEChERS method as follows:
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.