2020

Permanent URI for this collectionhttps://repository.iuls.ro/handle/20.500.12811/3108

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The Effect of Dehulling Lupine Seeds (Lupinus albus L.) from Low-Alkaloid Varieties on the Chemical Composition and Fatty Acids Content
(Revistad de Chimie, 2020-05-05) Struți, Dănuț-Ioan; Mierliță, Daniel; Simeanu, Daniel; Pop, Ioan-Mircea; Socol, Claudia-Terezia; Păpuc, Tudor-Andrei; Macri, Adrian-Maximilian
The aim of this study was to analyze the effect of dehulling white lupine seeds (Lupinus albus, cultivar Amiga) on the raw chemical composition and nutritional profile of lipids. There was no significant differences (p ˃ 0.05) between whole and dehulled lupine seeds in respect of their content in dry matter, ether extract, crude ash and nitrogen-free extract. However, the dehulled lupine seeds had a higher (p ˂ 0.05) crude protein level (51.69% of DM) than whole seeds (43.16% of DM), and a lower (p ˂ 0.05) crude fiber content (4.35% of DM) compared to that of whole seeds (14.15% of DM). The fatty acids profile is not affected (p ˃ 0.05) by the dehulling process. Oleic acid (C18:1 cis-9) is the main fatty acid in lupine seeds, and the level of monounsaturated fatty acids (MUFA) is slightly higher in whole seeds. The n-3 / n-6 report is adequate in both whole (0.88) and dehulled (0.94) seeds, and the favorable polyunsaturated index (PI) indicates the high content of polyunsaturated fatty acids (PUFA), which indicates that lupine seeds are a valuable source of essential fatty acids. Also, lupine seeds are characterized by favorable values of the thrombogenic (0.18) and atherogenic (0.14) indexes, and an appropriate hypocholesterolemic/hypercholesterolemic index value, features considered important for human health and animal nutrition.
listelement.badge.access-status Open Access ,
Research Regarding Crude Chemical Composition and Heavy Metal Content of Some Ecological Forages Utilised in Dairy Cows Nourishment
(Revista de Chimie, 2020-04-03) Nacu, Gherasim; Aioanei, Nadia; Pop, Ioan-Mircea; Simeanu, Daniel; Boișteanu, Paul-Corneliu; Vintilă, Vasile; Mintaș, Olimpia-Smaranda; Simeanu, Cristina; Avarvarei, Bogdan-Vlad
Kowing the importance of utilised food for milk obtaining, in the current paper we determine the chemical composition of a natural meadow and green mass alfalfa cultivated in ecological and conventional systems, utilised for dairy cows feeding. Were analysed the content in: dry matter DM (%), crude ash C.Ash (%), organic substance OS (%), crude protein CP (%), crude cellulose CC (%), non-nitrogenous extractive substances NES (%), neutral detergent fibre NDF (%), acid detergent fibre ADF (%), Ca (%), P (%), heavy metals (Pb, Cd, Zn, Cu - ppm), nitrates, nitrites and pesticides. Analysis were realised in two consecutive production years, for each indicator being made 5 determinations. Samples gathering and analysis were effectuated in according with standards and enshrined working methods. Differences between crude chemical composition of forages obtained in ecological system and the ones obtained by conventional agriculture had statistical significance (from significant - p ≤ 0.05 - to very significant - p ≤ 0.001) for the majority of indicators. Differences between those two production systems were insignificant only for crude fat (both forages), crude cellulose (alfalfa), non-nitrogenous extractive substances (both forages) and for acid detergent fibre (alfalfa). Both forages were safety regarding pollutants (heavy metals, nitrites, nitrates and pesticides), existing however statistically differences between those two production systems, in the favour of ecological
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Analysis of RASFF notifications on contaminated dairy products from the last two decades: 2000-2020
(University of Bucharest, 2020-01-29) Postolache, Alina-Narcisa; Chelmu, Sorin-Sergiu; Ariton, Adina-Mirela; Ciorpac, Mitică; Pop, Cecilia; Ciobanu, Marius-Mihai; Creangă, Șteofil
EU is the world’s leading exporter of cheese and one of the world’s top three suppliers of processed milk. Instruments such as those of the European Food and Feed Rapid Alert System (RASFF) play an increased role in consumer protection along global supply chains. On these premises, the objective was to analyze the status of RASFF notifications for milk and milk products food category, within the time frame 2000 ÷2020. The majority of dairy products were notified by France, Germany and Italy. Cheese was the most notified of all dairy products (84.43%), most of the transmitted food safety hazards being: microbial contaminants (68.4%), foreign bodies, adulteration / fraud, organoleptic aspects and residues of veterinary medicinal products. Notifications was usually based on company’s own check (35.47%) and official controls on the market (34.32%). A risk decision was not usually made, the taken actions including mainly recalls and withdrawals (56.95%) or destruction (7.96%). The results of this study can be used to prioritize and target research areas to identify key food safety topics, in particular fraudulent ones, to raise the awareness of the consumer and to promote and strengthen food safety legislation, with a focus on the European dairy sector.

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