Analysis of Air Quality in Selected Areas of a Poultry Processing Plant With the Use of a Microbiological Air Sampler

Abstract

Poultry processing plant, microbiological air quality, impaction technique. ABSTRACTThe aim of the study was to analyze the air quality in selected production facilities specified as the so-called "high-risk zones". Air samples were analyzed using either the sedimentation or the impaction methods. The impaction method showed the applicability of the air sampler in in-situ measurements. An increase in the numbers of aerobic bacteria was observed in most air sample collection sites as the duration of the production time increased. At the three successive dates, it amounted to 163 cfu/m 3 , 205 cfu/m 3 , and 324 cfu/m 3 , respectively. Such dependence was not observed by the of sedimentation method. It was stated that the impaction technique is better to precisely determine numbers of bacteria, yeast, and molds in the air of poultry processing areas. Analyses showed a high level of microbial air contamination in the examined production areas in relation to the guidelines applied in the assessment of indoor air contamination. Based on the recorded results, it was recommended to undertake immediate corrective actions, consisting in the replacement of filters in the refrigeration and air conditioning equipment, as well as to provide comprehensive training for the employees working in the selected facilities.

Haskap Berry Leaves (Lonicera caerulea L.)—The Favorable Potential of Medical Use

“…It is worth emphasizing that the tested plant material was not treated to any initial technological process, such as washing, but only dried at 40 °C. However, due to the variability of the tested material’s composition and the possibility of environmental factors’ effect on its quality, it is recommended to control the microbiological purity of each batch of raw material or consider implementing simple methods to increase the tested material’s microbiological quality [ 46 , 47 ]. The results of the microbiological quality assessment are presented in Table 1 as CFU/g DL.…”

Design and construction of a low cost air purifier for killing harmful airborne microorganisms using a combination of a strong multi-directional electric-field and an ultra violet light

“…The bacterial load given to the device in this experiment is substantially above the number of bacteria normally found in the contaminated air [29] . Active air sampling in an enclosed environment with the use of an air sampler would be the ideal approach to assess the effect of the device but such an experiment will fail to determine the capacity of the device in reducing bacterial counts [30] . From the experiment conducted herein, it is evident that the electric field used in this device substantially reduces the counts of bacteria in the airflow and an augmented effect can be achieved by combining the effect of UV radiation with the voltage ( Fig.…”

Dust and Bacterial Air Contamination in a Broiler House in Summer and Winter

“…A SAS 100 TM instrument (PBI International, Milan, Italy) was used to determine bacterial count, with an airflow rate of 10 L/10 s. The sampling head was sterilized prior to each sampling and disinfected between measurements with 70% isopropyl alcohol (VWR International PBI, Milan, Italy). The air samples were collected into Petri dishes with Tryptic Soy Agar (Biolife, Milan, Italy) for enumeration of total aerobic mesophilic bacteria, as reported elsewhere [37][38][39][40][41]. After incubation at 37 • C for 24 h, the grown colonies (CFU/m 3 ) were counted using a digital colony counter (J.P. Selecta, Barcelona, Spain), with results corrected as per the table and formula attached to the instrument.…”