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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Microwave irradiation enhances the germination rate of tartary buckwheat and content of some compounds in its sprouts

100%
Wang S., Wang J., Guo Y.
Polish Journal of Food and Nutrition Sciences
|
2018
|
tom 68
|
nr 3
Tartary buckwheat (Fagopyrum tataricum) seeds were irradiated with microwaves at various power levels of 200, 400, 600 and 800 W for 10 or 30 s. The irradiated grains were germinated for 3, 5, and 7 days and harvested. The germination rate of the tartary buckwheat seeds and contents of some compounds in the sprouts were investigated. The results showed that the exposure to 600 W microwaves for 10 s resulted in the highest fi nal germination rate after 7 days of germination, which was 2 times that of the control. The exposure of seeds to 800 W for 30 s showed the lowest germination rate (approximately 10%), which decreased by 87% compared with the control (p<0.05). The exposure at 600 W for 30 s stimulated the total flavones content, reduced the sugar and soluble protein contents, and increased the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity. The highest free amino acid content (11 mg/g) was observed in 5-day sprouts exposed to 800 W for 10 s. Moreover, the microwave treatment had a positive effect on the catalase (CAT) and superoxide dismutase (SOD) activity.
2

The influence of microwave drying parameters on biologically active components content in selected herbs

100%
Nowacka M., Witrowa-Rajchert D., Luczywek K.
Polish Journal of Food and Nutrition Sciences
|
2011
|
tom 61
|
nr Suppl.1
3

Influence of thermal processing on bioactive compounds content in apple puree prepared from organic fruits of old and new apple cultivars

100%
Hallmann E., Rembialkowska E.
Polish Journal of Natural Sciences. Supplement
|
2007
|
tom 04
37-42
4

Studies on the effect of chlorinated hydrocarbons content in the compound animal feeding stuffs on the residues in turkey carcasses and efficiency of slaughter turkeys rearing

80%
Faruga A., Pudyszak K., Borejszo Z., Smoczynski S. S., Pietrzak-Fiecko R.
Polish Journal of Veterinary Sciences
|
2008
|
tom 11
|
nr 3
213-218
An increasing demand for turkey meat requires intensification of rearing, while almost permanent presence of stable chlorinated hydrocarbons in the environment, feeds, living organisms, including humans, to force undertaking studies on the wholesome safety of food of animal origin. The objective of the present study was therefore to evaluate selected cereals of different origin in terms of the content of chlorinated hydrocarbons (DDT, DDE, DDD, and HCH) as well as to determine the content of these compounds in turkey carcasses and their effect as feed material on the rearing efficiency. The investigations were carried out in 2002 on 100 one-day-old Big-6 turkey hens randomly allocated to 4 groups. For the period of 16 weeks, the animals were fed ad libitum with diets based on wheat and barley originating from different regions and characterized by different agricultural and industrial properties. Chlorinated hydrocarbons were determined in: animal feeding stuffs compound (wheat, barley, meat meal, extracted soybean meal), turkey blood, breast muscles, skin with external fat, and in abdominal fat by means of gas chromatography with an electron capture detector (ECD). The results obtained confirmed high contents of the examined compounds in feed material and in fat obtained from carcasses of the birds investigated.
5

Contents of biologically active compounds in Rhodiola rosea roots during the vegetation period

80%
Buchwald W., Mscisz A., Krajewska-Patan A., Furmanowa M., Mielcarek S., Mrozikiewicz P. M.
Herba Polonica
|
2006
|
tom 52
|
nr 4
Studies on the contents of phenylpropanoids, salidroside, tyrosol, epigallocatechin gallate and gallic acid in Rhodiola rosea roots during the vegetation period were carried out. Rosavin was the main compound of Rhodiola rosea roots. It was found that the time of harvest of roots had a significant effect on the contents of biologically active compounds.
6

Tissue culture of Rhodiola kirilowii [Regel.] Maxim - contents of biologically active compounds at different stages of growth

80%
Krajewska-Patan A., Furmanowa M., Mscisz A., Dreger M., Lowicka A., Gorska-Paukszta M., Mielcarek S., Mrozikiewicz P. M.
Herba Polonica
|
2006
|
tom 52
|
nr 4
The callus tissue obtained from Rhodiola Kirilowii (Regel.) Maxim was tested for growth dynamics and contents of active compounds. Biologically active compounds in the callus tissue were identified as salidroside, tyrosol, gallic acid, chlorogenic acid, caffeic acid and tannins. The lotaustralin was not detected either in the callus, or roots of R. Kirilowii
7
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

The effect of diverse iodine fertilization on nitrate accumulation and content of selected compounds in radish plants (Raphanus sativus L.)

61%
Strzetelski P., Smolen S., Rozek S., Sady W.
Acta Scientiarum Polonorum. Hortorum Cultus
|
2010
|
tom 09
|
nr 2
Plant fertilization with iodine may be an alternative source of this element in human diet. Iodine influence on nitrogen metabolism in plants has not yet been thoroughly described. Thus, there is an urgent need to determine the effect of iodine application on nitrate(V) accumulation in plants. The aim of the study was to determine the influence of soil and foliar application of iodine forms (I-, IO3-) on nitrate accumulation and concentration of selected compounds in radish plants. The following treatments were applied in the experiment: 1 – control (without application of iodine), 2 – foliar application in KI form, 3 – foliar application in KIO3 form, 4 – soil fertilization in KI form, 5 – soil fertilization in KIO3 form, 6 – soil fertilization in KI form + foliar application in KI form, 7 – soil fertilization in KIO3 form + foliar application in KIO3 form. Soil fertilization with iodine was carried out before radish sowing to the level of 15 mg I·dm-3 soil. Foliar application of this element was performed twice using iodine solution in a concentration per pure element of 0.2%, in dose of 0.4 dm3· m-2. In all tested combinations with iodine treatment an increase of ammonium ion content in radish roots was observed in comparison to the control. Both, foliar nutrition with KI as well as nitrogen fertilization with KIO3 (combination 2 and 6, respectively) resulted in a significant increase of free amino acids concentration in radish roots. No significant influence of tested factors was noted for the root and leaf content of: dry mass, nitrates(V), nitrates(III) as well as root level of total soluble sugars and leaf concentration of photosynthetic pigments and ammonium ions in radish.
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