Criteria to determine the freshness of chicken meat using biophysical and morphological methods
Journal Title: Біологія тварин - Year 2015, Vol 17, Issue 4
Abstract
The article is dedicated to the experimental impedancemetry of fresh chicken meat (fillet) after storage in the refrigerator and the meat with signs of damage. It was determined that passing an alternating current of different frequencies through pieces of meat of different freshness results in the change of its overall electrical resistance. It was experimentally proved that theresistance dispersioncurvefor freshchicken meatis in the rangefrom 754.4to 3720.0 Om, for the meatwith signs of aging (damage) — in the rangefrom141.3to 156.1Om, which testifies to the dependence of the tissue electrical impedance module from its physiological condition.Along with the impedancemetry histological studies of the selected samples of chicken fillet and studies of surface structure of meat by scanning electron microscopy to confirm the effectiveness of the proposed method to determine the freshness of chicken meat was conducted. Histologically, the fresh muscle fibers were located densely, under sarcolema numerous elongated-oval nuclei of dark blue colour appeared. In the chicken meat, which is being stored in the refrigerator for 6 days, in contrast to the fresh one, a stratification and local destruction of sarcolemma, the swelling of muscle fibers, the destruction of connective tissue, the deformation and ruptures of deep layers of muscle tissue were observed. Electronic microscopic study of lengthwise superficial muscle tissues detected pressed in muscle clusters and separate fibers, sarcolemma exfoliates from the sarcoplasm, protein mass accumulated in intercluster layers. The histological examination of chicken meat samples with signs of damage, indicated a strong swelling of muscle fibers, loss of transverse and longitudinal streakiness, lysis of most nuclei, between several muscle fragments the colonies of microorganisms were revealed. The scanning electron microscopy of the medicinal products showed the thickening of internal layer with densely located fibers, the formation of small number of bags where the colonies of microorganisms are likely to multiply.
Authors and Affiliations
O. Shchebentovska, V. Novikov
Keywords
Related Articles
- EP ID EP342951
- DOI -
- Views 115
- Downloads 0
Changes of characteristics of erythrogenesis in blood of rabbits inactivated with multivalent vaccine against leptospirosis in cattle by intramuscularly injection
The article presents the results on a study of erythrogenesis peripheral blood characteristics in rabbits (quantity of erythrocyte, hemoglobin concentration, medium volume of erythrocyte, medium volume of hemoglobin in o...
The age features of rat erythrocytes
In this work, age features of sensitivity of the 1- and 12-month rats’ erythrocytes to hypertonic environment conditions after their temperature modification at +49 °C and/or incubation in sucrose solutions were investig...
Immune status of calves during early postnatal ontogenesis under the influence of pyridoxine hydrochloride supplementation
For the aim to study the immune status of calves under the influence of pyridoxine hydrochloride six groups of newborn calves with 5 animals in each group were formed. The calves from control group received basic diet. T...
Physiological and biochemical parameters of blood and semen quality of rabbits, watering sulfur and chromium compounds
We investigated the effect of watering sulfate, sodium chloride and citrate Chrome on physiological and biochemical parameters of blood and semen quality of rabbits-sires. We determined the morphological and biochemical...
Reproductive ability of rabbit doe under the influence of different quantity of straw meal in the diet
The optimal content of winter wheat straw flour in the composition of animal feed for the reproductive performance of local rabbits was investigated. Recipes andsustenance for animal feed were calculated by physiological...