Bacterial and archeal dynamics of a labscale HYBRID gas fermentation bioreactor fed with CO and H.

16s rDNA-based methods were used in order to identify the dynamics of microbial profiles in a HYBRID gas fermentation bio-methanization reactor. The effects of various H and CO ratios on microbial community were investigated. The HYBRID gas fermentation reactor was composed of granular anaerobic seed and the system fed with only H and CO gases.

CO utilization via a novel anaerobic bioprocess configuration with simulated gas mixture and real stack gas samples.

CO, which is considered to be one of the major causes of climate change, has reached to critical levels in the atmosphere due to tremendous consumption of fossil fuels all over the world. In this study, anaerobic bioconversion of CO into bio-methane using a novel bioprocess configuration (HYBRID bioreactor) was studied under mesophilic conditions. Varying ratios of H/CO gas mixture and volumetric feeding rates were investigated and no additional organic matter and trace element were needed throughout the study.

Evaluation of the estrogenic effects of dietary perinatal Trifolium pratense.

This study was designed to investigate the potential estrogenic effects of perinatal dietary phytoestrogens on the rat uterus. Pregnant rats were divided to three groups provided the following diets: (1) rat chow, (2) rat chow with 7.5% Trifolium (T.

Histological changes in the uterus of the hens after embryonic exposure to bisphenol A and diethylstilbestrol.

Many employed chemicals in industries have estrogenic hormone effects on organisms, and these are called as environmental estrogens. Environmental estrogens have adverse effects on development and function of reproductive organs of the birds. Bisphenol A (BPA) is one of the best known environmental estrogens widely found in plastic products.

Short- and long-term effects of diethylstilboesterol administration during and after the cessation of Sertoli cell proliferation on the testis of domestic fowl.

1. This study examined the effects of diethylstilboesterol (DES), administered during and after Sertoli cell proliferation, on the testes of hatched cockerel up to the age of 20 weeks. 2.