Wyniki wyszukiwania - AGRO

1

New imaging techniques and future developments

100%

Blonk J. C. G.

Polish Journal of Food and Nutrition Sciences

|

1998

|

tom 07

|

nr 2 Suppl.

2

Microstructure of soy protein products

100%

Cserhalmi Z., Katsaras K., Czukor B.

Polish Journal of Food and Nutrition Sciences

|

1998

|

tom 07

|

nr 2 Suppl.

3

Application of fractal analysis to the characterization of microstructure of different food products

100%

Smoczynski M., Dziuba Z., Smietana Z., Borowska J., Pierzynowska-Korniak G.

Natural Sciences

|

1999

|

tom 03

4

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Microstructure of the masseter muscle (musculus masseter) in cattle

88%

Bogucka J., Bogucki M., Frymarski M.

Folia Pomeranae Universitatis Technologiae Stetinensis. Agricultura, Alimentaria, Piscaria et Zootechnica

|

2015

|

tom 36

5

Cell orientation in potato tuber parenchyma tissue

88%

Gancarz M., Konstankiewicz K., Zgorska K.

International Agrophysics

|

2014

|

tom 28

|

nr 1

The paper presents the results of the research of the size and shape of parenchyma tissue cells in potato tubers depending on the direction and site of sampling in tubers. An optical confocal microscope was used to observe samples in their natural state. The investigation was carried out for 1 mm thick samples cut from cylindrical samples (10x10 mm)taken in two mutually perpendicular directions of the inner and outer core of each variety. The analysis was done ten times.The methods developed for the composition and image analysis ensure obtaining a sufficient number of cells to determine tissue structure parameters (surface, shape, elongation and number of cells per 1 mm2) and decays of these parameters were obtained. Statistical analysis was performed using the -Kolmogorov-Smirnov compliance test.Arelationship between the direction of sampling and the size and shape of the inner core of cells was found. Greater surface area and elongation of the inner core cells for the longitudinal direction in the tuber (stolon – top) was demonstrated. There was no such a correlation for the outer core in the tubers of the cultivars examined.

6

Effect of pectins on the microstructure and quality of typical Spanish fresh cheese: Burgos cheese

88%

Hernando I., Perez-Munuera I., Lluch M. A.

Polish Journal of Food and Nutrition Sciences

|

1998

|

tom 07

|

nr 2 Suppl.

7

The microstructure of selected apple varieties

88%

Pierzynowska-Korniak G., Zadernowski R., Fornal J., Nesterowicz J.

Electronic Journal of Polish Agricultural Universities. Series Food Science and Technology

|

2002

|

tom 05

|

nr 2

Scanning microscopic analysis cell structure of 8 apple cultivars was carried out. For each variety, skin and flesh, cut and broken preparation was made to research microstructure of apple tissue. The results revealed differences in shape, cell size, thickness of cellular wall, distribution and size intracellular spaces and other fruit texture features of apple varieties tissue. In microscopic picture some varieties of apple were found. Some dependence between structure of apple tissue and sensory assessment of fruit was found too.

8

Microstructure of thermoplastic starch polymers

88%

Mitrus M.

International Agrophysics

|

2006

|

tom 20

|

nr 1

9

Some physico-chemical and functional properties of sodium caseinate

88%

Swigon J., Szpendowski J., Smietana Z.

Polish Journal of Natural Sciences

|

2002

|

tom 11

10

Changes in microstructure of native starches and starch acetates of different botanical origin during retrogradation

88%

Blaszczak W., Fornal J., Lewandowicz G.

Polish Journal of Food and Nutrition Sciences

|

2001

|

tom 10

|

nr 2

Water 2% starch suspensions prepared from native cereal starches (wheat, corn) and tuber ones (potato, tapioca) as well as their acetates were cooked at 100°C for 1 h. The obtained pastes were cooled to 25°C and stored at 4°C for 56 days. Rétrogradation of 2% pastes was determined in two ways: as actual changes in the turbidity development, and as relative rates of turbidity between gels during 56 days of storage. The obtained results showed that the development of turbidity of the native and consequently acetylated starches followed the order: wheat > corn starch > potato > tapioca. Rétrogradation evoked significant changes in microscopic pictures of pellets and supernatants obtained by LM and SEM examinations. The pictures varied considerably in amylose distribution. These alternations were unique for each botanical source of starch as well as starch acetates. The native cereal starches were characterized by a strong association of amylose particles with amylopectin fraction. While the tuber starches showed a weaker interaction between granule remnants and precipitated amylose. Changes in the microstructure of the native and acetylated starch granules were in accordance with turbidometric analysis.

11

New image analysis method for the estimation of global and spatial changes in fruit microstructure

75%

Pieczywek P. M., Cybulska J., Dyki B., Konopacka D., Mieszczakowska-Frac M., Zdunek A.

International Agrophysics

|

2016

|

tom 30

|

nr 2

12

Effect of nanofillers on properties of polyester composites

75%

Jastrzebska M.

Towaroznawcze Problemy Jakości. Polskie Towarzystwo Towaroznawcze

|

2013

|

nr 4

13

The application of scanning electron microscopy in the study of seeds surface

75%

Karcz J., Tomczok J.

Folia Histochemica et Cytobiologica

|

1986

|

tom 24

|

nr 4

14

Mekhanicheskie, mikrostrukturnye i fraktograficheskie issledovanija metalla povrezhdjonnykh lopatok parovykh turbin

75%

Gladysh P., Kondyr A.

Motrol. Motoryzacja i Energetyka Rolnictwa

|

2016

|

tom 18

|

nr 4

15

Microstructure of porcine meat with the Rendement Napole gene

75%

Alarcon-Rojo A. D., Zapata I., Solis F. J., Lara I., Burrola E., Cordoba L., Janacua-Vidales H.

Animal Science Papers and Reports

|

2008

|

tom 26

|

nr 4

The Rendement Napole gene (RN) consists of a mutation at the γ3 subunit of AMP-activated protein kinase (AMPK) in pigs. AMPK works as an energy level sensor and controls numerous cellular pathways. The study aimed at identifying the differences in microstructure occurring between the normal porcine meat and porcine meat encoded by the RN gene. Using molecular techniques 194 commercial pigs were sampled to determine their genotypes. Meat from the semimembranosus muscle was examined using optic (OM) and transmission electron microscopy (TEM). The genotypes rnI/rnI, rnV/rnV, rnV/rnI, RN/rnV and RN/rnI were identified. OM revealed broadening of the sarcoplasmic space in RN animals, while TEM showed disordering of muscle fibres and alteration of the sarcomeric structure. Mitochondrial degradation was found in both RN and normal animals,however, the morphological changes observed seemed to be caused by the mutated AMPK.

16

Influence of fertilizer application on microstructure, mineralogical composition, and grass yield of Karelian soils

75%

Zvereva T. S., Makarova N. I., Strelkova A. A.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1996

|

tom 436

Changes in chemical properties, mineralogical composition and microstructure of the taiga surface-gley forest and cultivated soils were studied. The cultivated soil was previously drained, limed and manured. Different dozes of NPK were applied during 5 and 20 years. Perennial grasses were grown on the plots studied. Long - term application of small dozes of NPK (40 - 100 kg ha⁻¹) contributed to a biological transformation of arable horizons and formed a high quantity of biogenic pores and aggregates. Improvement of water permeability and drainage caused removal of the organo-mineral compounds from the upper horizons. These compounds were accumulated near drains. In our experiments, optimal dozes of NPK applied to form biogenic aggregates were N120 P120 K120 and N240 P240 K240. The higher dozes of NPK caused an increase in both the humus and iron removal and destruction of aggregates. Mineralogical composition was determined by the X-ray and immersion methods in fractions: >0.01, 0.01 - 0.001. and <0.001 mm. The higher and non-balanced dozes of NPK contributed to the changes in minerals containing the biophilic elements (micas, chlorites, amphiboles) in the coarse-textured fractions of soils. The fertilizer’s potassium was fixed by labile clay minerals and transformed to a weakly available form for plants. Dozes of N120 P120 K120 were optimal. These dozes did not cause noticeable changes in minerals, but resulted in significant grass yield.

17

Calculation of numerical density of enamel prisms in multituberculate enamels: A review

75%

Fosse G.

Acta Palaeontologica Polonica

|

2003

|

tom 48

|

nr 4

In this brief review I explain the method of quantitatively describing prismatic enamel microstructure in multituberculates, to facilitate its practical use by paleontologists. I argue that histogenesis of gigantoprismatic enamel in many multituberculate taxa must have been quite exceptional in mammals. Future studies of enamel in plesiomorphic “plagiaulacidan” multituberculates are necessary to elucidate the evolutionary phases of enamel micromorphology toward prismatic mammalian enamel generally, and perhaps as a consequence, the origin of the successful (Late Cretaceous–Eocene) multituberculate suborder Cimolodonta and relationships among its subgroups. Such studies should therefore include calculation of numerical prism densities whenever possible.

18

Effect of acetylation on microstructure of potato starch

75%

Lewandowicz G., Blaszczak W., Fornal J.

Polish Journal of Food and Nutrition Sciences

|

1998

|

tom 07

|

nr 2 Suppl.

19

Effect of microwave radiation on microstructure of tuber and cereal starches

75%

Lewandowicz G., Fornal J.

Polish Journal of Food and Nutrition Sciences

|

1998

|

tom 07

|

nr 2 Suppl.

20

Microstructure and mechanical parameters of five types of starch

75%

Molenda M., Stasiak M., Horabik J., Fornal J., Blaszczak W., Ornowski A.

Polish Journal of Food and Nutrition Sciences

|

2006

|

tom 15/56

|

nr 2

Research was conducted to recognize interrelations between morphology and mechanical properties of starch. Microscopic examination, determination of particle size distribution, as well as direct shear and uniaxial compression testing were performed on five types of starch extracted out of: potato, wheat, corn, tapioca and amaranth. Regarding geometrical features (morphology) of granules, three distinct groups of materials were distinguished. Classification of materials based on the results of mechanical testing was found in a close agreement with classification based on morphology. Potato and wheat starches that had relatively large granules (d(0.5) of 41.5 and 20.2 µm) and bimodal particle size distribution showed stress–strain curves with fluctuations, particularly high in the case of potato starch. Tapioca and corn starches had smaller granules of similar sizes (d(0.5) of 15.6 and 13.8 µm, respectively). The uniaxial compression stress–strain curves of the two materials were also very similar, as well as their angles of internal friction. Granules of amaranth starch with d(0.5) of 3.0 µm were several times smaller than those of corn and tapioca starches (parameter d(0.5) is the size in microns at which 50% of the sample is smaller and 50% is larger). As a result, amaranth starch was characterized by relatively weak compressibility and flowability, the lowest of all the materials tested.

Ograniczanie wyników