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BULLETIN OF SCIENTIFIC INFORMATION - NR.26 / 2013

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THE APPLICATION OF SOME COORDINATION COMPOUNDS IN REGULATION OF THE CONTENT OF ANTIOXIDANTS IN SPIRULINA PLATENSIS

 Valentina BULIMAGA 2, Nadejda EFREMOVA 1, Liliana ZOSIM 2, Ludmila BATIR 1, Daniela ELENCIUC 3
1 Institute of Microbiology and Biotechnology of Moldova, Chishinau, Moldova
2 State University of Moldova, Laboratory of Phycobiotehnology, Chishinau, Moldova
3 University of Academy of Sciences of Moldova, Chishinau, Moldova efremova.nadejda@gmail.com
 
Abstract:
Investigation of non-traditional sources of bioactive substances is one of the current directions of biotechnology development in many countries worldwide. This paper reports on the study of possibility of utilization of some coordination compounds of V(IV) and Co(III) as regulators of the content of bioactive substances with antioxidant properties: superoxiddismutase (SOD), phycobiliproteins, carotenoids and lipids in the biomass of cyanobacteria Spirulina platensis. Natural antioxidants possess a broad spectrum of biological activity due to the ability to neutralize the negative effects of free radicals in living organisms. The obtained experimental results demonstrate that utilization of some coordination compounds of V(IV) at the spirulina cultivation contribute to the accumulation of β-carotene and lipids in spirulina biomass, as well
as metallocomplexes of Co(III) have the beneficial effect on the content of phycobiliproteins, lipids and activity of SOD. The present study reveals that obtained biomass of cyanobacteria Spirulina platensis with high content of bioactive substances with antioxidant properties can be used for the elaboration of medical remedies for prophylaxis and treatment of diseases,
caused by the negative effect of oxidative stress on live organisms and, also, for the elaboration of cosmetic preparations for the prevention of premature skin aging, protection against solar radiation and treatment of skin diseases.
 
Key words: cyanobacteria Spirulina platensis, antioxidants, biologically active substances, coordination compounds of V(IV) and Co(III)
 

THE CORRELATION „MELLIFEROUS PLANTS-BEES-HONEY OF BEES-MAN-SOCIETY” AND ITS ROLE IN THE STUDENT’S EDUCATION BY BIOLOGICAL DISCIPLINES

Mariana Iancu
Department of Specialized Psycho-Pedagogical Profile, BIOTERRA University of Bucharest
iancummariana@gmail.com
 
Abstract:
Scientific research of the correlation melliferous plants-bees-honey bees-man-society and its role in the student’s education by biological disciplines for faculties of food domain at the BIOTERRA University of Bucharest, Romania, showed that honey qualitative impairment due to the depreciation of the natural environment in which man lives, it is required due to
the reckless actions of nature’s time to take measures to protect plants, animals, the whole natural environment is important the ecological education and environmental education during training in education and continue throughout life. At the same time, it may be appropriate professional education, food education, training of the competence of the choice of the foodstuff, such as it is, honey of bees, based on the knowledge and awareness of the need to distinguish between a food product natural, quality, one counterfeit software, his choice of falsified and therefore, in such a way as to decrease the morbidity and mortality of the social environment, marketing natural products, not some fake, counterfeit, polluted, contaminated.
 
Key words: melliferous plants, honey of bees, professional and food education, ecological education
 
 

RESEARCHES ON THE IMPACT OF AGRICULTURAL PRODUCTS FROM MYCOTOXINS VEGETABLE ON CONSUMER HEALTH

Roxana ANDRONE 1, Ioan ROŞCA 2
1 Bioterra University of Bucharest, No. 81, Gârlei Street, sector 1, Bucharest (Ph.D student USAMV Bucharest)
2 University of Agronomical Sciences and Veterinary Medicine, Bucharest, 011464, Romania
 
Abstract:
It is extremely important to achieve optimum economic fertilizer management. WorldwideMycotoxins are substances toxic mushroom character with critical role in the pathological process. They act on the host cell protoplasm in extremely low concentrations by altering membrane permeability.Some toxins cause all or part of the symptoms. The most
common toxin in many crop plants aflatoxin is produced by Aspergillus fungi genius. The basic structure of aflatoxins is the core cumatinic one condensed furan. Aflatoxins can exist in wheat, sesame, sweet potatoes, corn, rice, peanuts stored in improper conditions.
 
Key words: Mycotoxins, agricultural products, consumer, aflatoxins

 

RESEARCH ON QUANTITATIVE DETERMINATION OF BIOLOGICALLY-ACTIVE COMPOUNDS IN NATURAL JUICES OBTAINED BY COLD PRESSING

Maria Pop Varsta
Ph.D student, USAMV Bucharest
mariapophypericum@yahoo.com
 
Abstract:
Research conducted on berries show that they can be used as sources antioxidant, antibacterial being rich in phytochemicals which are obtained through bioactive properties. Analysis of active substances was made in the 3 categories of plant products, namely fresh fruit juices and frozen sea buckthorn, black currant and blueberry.
 
Key words: natural surroundings juices, vitamin C, polyphenols, antioxidants
 

RESEARCHES ON THE IDENTIFICATION OF MACROSCOPIC CHARACTERISTICS, MINERALS AND THE FOOD VALUE AND NUTRITIONAL USE OF THE SPECIES PORTULACA OLERACEA

 Aurora DOBRIN 1, Cătălin GALAN 2
1 U.S.A.M.V. Bucharest No. 59, Mărăşti Street, sector 1, Bucharest
auroradobrin@yahoo.com
2 Bioterra University of Bucharest No. 81, Gârlei Street, sector 1, Bucharest

Abstract:
In Romania, Portulaca oleracea grows starting from lowland areas up in the highlands and salty soils. Plant herbaceous, succulent, with a length of about 50 cm, is widespread in crops, gardens, ruderal areas, the edges of roads, etc. [3],[4]. It extracts a significant amount of salt from the soil, bringing the soil salinity at a reasonable level [7]. From the analysis it was found that the highest values of minerals recorded from 100 g of plant material were in Ca (mg/100g 2540.707), Mg (17964.7 mg/100g) and Na (1095.54 mg/100g)
and the lowest values in Cr (0.169 mg/100g), Zn (17.54 mg/100g) and Fe (31.85 mg/100g). Thus, we can conclude that Portulaca oleracea, having a high content of essential minerals can be used in curative, therapeutic and food, in various forms: fresh, powder or oil.
 
Key words: portulaca oleracea, minerals, medicinal herbs