Authors:M. Drobac, J. Arsenijević, and N. Kovačević
methods are widely used because of their simplicity and reliability. In this framework, the aim of this study was to determine the coumarin content in cinnamon bark samples, as well as in cinnamon-containing dietarysupplements available in Serbia using a
Authors:Zs. Hajdu, L. Lorántfy, N. Jedlinszki, K. Boros, J. Hohmann, and D. Csupor
): Potenciafokozó étrend-kiegészítők analízise: egy követő vizsgálat figyelmeztető tapasztalatai. (Analysis of male sexual prerformance enhancer dietarysupplements — conclusions of a follow-up study) Gyógyszerészet , 55 , 515 – 517
Authors:G. Kralik, S. Ivanković, I. Bogut, and J. Csapó
Scaife, J. R., Moyo, J., Galbraith, H., Michie, W. & Campbell, V. (1994): Effect of different dietarysupplemental fats and oils on the tissue fatty acid composition and growth of female broilers. Brit. Poultry Sci. , 35 , 107
Authors:L. Biró, M. Szeitz-Szabó, Gy. Biró, and J. Sali
The fourth countrywide nutrition survey was initiated and co-ordinated by the Hungarian Food Safety Office jointly to the yearly Household Budget Survey of Hungarian Central Statistical Office in 2009. The dietary assessment was performed by trained interviewers and skilled dieticians using a complex questionnaire system, containing three-day diary, short food frequency questionnaire and questions on taking of dietary supplements and on prevalence of food allergy. The data records were processed and the questionnaires were validated, the results obtained on the micronutrient intakes of the adult population are shown in this article. From fat soluble vitamins, the average daily intakes of vitamins A and D were lower than the national recommendations in case of both genders, meaning low intake for around 60% (in case of retinol) and 80–90% (in case of calciferols) of adults. The intakes of some water soluble vitamins belonging to B group, vitamin C and folates were low as well. Regarding the macroelements, the most important health problem on population level is the extremely high sodium load of the inhabitants, combined with unfavourable sodium/potassium ratio. The average daily calcium intake of every age and gender group was far below the recommended value. The average daily intake of iron was low for the 50% of adult females. The article also provides data on frequency of food supplement taking habits of inhabitants and of self-reported food allergy.
Authors:N. Costa, P. Sakon, H. Paula, M. Pinto, M. Sant‘Anna, T. Araújo, and V. Minim
This study aimed to evaluate the composition, the protein quality, and the acceptability of a powder dietary supplement formulated for elderly people. The centesimal composition was analysed according to A.O.A.C. methods and the protein quality was assessed in weaning rats, by comparing Protein Efficiency Ratio (PER), Net Protein Ratio (NPR), and True Digestibility (TD) of the supplement with a casein-control based on AIN-93G diet. For the acceptance test samples of four flavours of the supplement dissolved in whole milk were offered to each judge, in monadic form. To assess the overall acceptability a scale of seven points was used. The sensory panel was composed of 121 Brazilian panellists, with mean age of 68.28±5.78 years. The supplement is promising in reaching the nutritional demands of the elderly, providing high content of protein and fibre and low content of fat. The values found for PER and NPR were shown to be superior to the control group of casein (P<0.05) and the digestibility was higher than 90%, showing that the supplement presented characteristics of a high nutritional value protein source. The supplements with banana, vanilla, and strawberry flavour were the most accepted and did not differ significantly for the overall acceptability.
Authors:L. Costantini, R. Molinari, and N. Merendino
Some studies suggested a positive effect against cardiometabolic diseases of supplementation of alpha-linolenic acid (ALA, C18:3 n-3) rich foods in pathological subjects, even if the total literature is controversial. In order to clarify ALA-rich chia seed action in hypertensive model with the overt pathology and without drug interference, in the present study the biochemical markers of cardiometabolic diseases (endothelin-1, ET-1; nitric oxide, NO; and bradykinin, BK) in Spontaneously Hypertensive Rats (SHRs) were analysed after 5% chia seed dietary supplementation for five weeks, and compared with the staple raw material wheat and corn. At the end of the experimental period, also plasma antioxidant capacity and inflammatory condition were evaluated. Our results showed that the chia seed group was more oxidized. On the other hand, ET-1 significantly decreased in chia seed group, and there was no difference between groups for NO, BK, and the inflammatory C-reactive protein (CRP). In conclusion, some positive effects of chia seed consumption on cardiometabolic markers in SHRs were observed, despite this the association of chia seeds with antioxidants is suggested to avoid plasma oxidation increase.
Utilization of algae includes both macroalgae for human consumption dating back to thousands of years, as well as the application of microalgae in health promoting dietary supplements. The autotrophic growth of microalgae is slow, but can be accelerated by optimizing their cultivation conditions. Efficiency optimizations for time and economy should be performed in many parallel experiments. A new high-throughput microalgae cultivation method is presented here, applying 24-low-well microplate with varying illumination, in which the cell growth is followed via evaluation of scanned images. A strain of the genus Nannochloropsis and two Chlorella vulgaris species have been chosen as well described and frequently applied model organisms in order to test the recently developed cultivation system. In these scaled down experiments, the custom design lighting panel was tested by studying the effect of the colour of illumination on cell growth kinetics. RGB LEDs (i.e. light emitting diodes, red: 622 nm, green: 528 nm, and blue: 467 nm) were used individually or together providing red, green, blue, and white colours. While the effect of light’s colour on algae growth was evaluated, also the new system was proven to be suitable for comparing maximal growth rates for different microalgae strains. While the tested two Chlorella isolates reached 1.2–1.4 g l–1 concentrations, the Nannochloropsis strain reached 1.4 g l–1 final cell dry weight, and specific growth rates were observed between 0.58–0.62 day–1.
Authors:P. Bhatia, C. Bansal, R. Prakash, and T.P. Nagaraja
The present study was carried out to examine the antioxidant activity in oyster mushroom cultivated on selenium (Se) rich substrate. Pleurotus fossulatus was cultivated on Se-rich wheat straw collected from the seleniferous belt of Punjab (India) and its potential to accumulate Se from substrate was examined. Using different assay systems the modulations in the anti-oxidant profile of Se enriched mushroom was studied in comparison to the mushrooms cultivated on normal straw. The oyster mushrooms were observed to potentially mobilize Se from Se-rich substrates to fruiting bodies, resulting in significantly high uptake (37.2±0.6 μg g−1) as compared to control (3.57±0.53 mg g−1). The antioxidant activity, as determined by various assays, such as reducing power, 2,2-diphenyl-1-picrylhydrazyl free radical scavenging, and metal chelating activity, was higher in the experimental mushrooms when compared to control. The results obtained demonstrate that Se-fortified mushrooms through cultivation on straw containing organic forms of Se can be considered as natural and effective dietary supplements of organic Se for humans. The present study proposes the use of Se-rich agricultural residues as substrates for mushroom cultivation for human and livestock supplementation.