background: recombinant proteins overexpressed in e. coli are usually deposited in inclusion bodies. cysteines in the protein contribute to this process. inter- and intra- molecular disulfide bonds in chitinase, a cysteine-rich protein, cause aggregation when the recombinant protein is overexpressed in e. coli. hence, aggregated proteins should be solubilized and allowed to refold to obtain nat...

background: enterocin-p of enterococcus faecium p13 (entp) is of great interest as a food preservative and medicine due to its non-toxicity and broad antimicrobial spectrum in various ph, as well as its excellent thermal stability. however, recombinant production of entp is still in laboratory because of low productivity and complex purification process. objectives: in this study, we aimed to d...

Milk urea nitrogen (MUN) of dairy cows was determined in relation to breed. A total of forty (40) Pabna and red Chittagong dairy cattle each of twenty (20) were selected to know the milk composition, nutritional status and milk urea nitrogen. Live weight of Pabna Cattle (187±14 kg) was higher than that of red Chittagong cattle (174±4 kg). In Pabna cattle milk yield (4.94 kg), minerals (0.15%) a...

in order to study the canopy temperature effect on protein and soluble sugar, oil percentage and yield of soybean in different planting dates, an experiment was conducted as factorial based on randomized complete block design with three replications in karaj and moghan areas during 2012-13. the studied treatments were included cultivar (‘williams’ and ‘l17’) and planting date (5th of may, 5th o...

in order to evaluate the effect of different nitrogen application methods on yield and yield components of winter wheat, a field experiment with split plot arrangement in randomized completely blocks design with four replicates was conducted during 2006-07. basal dressing in three levels (with no basal dressing, strip and distributing nitrogen fertilizer) as main plot and top dressing in six le...

Many seaweed species have a high production potential and attract interest as future protein sources. A fiber ash content, however, demand extraction of the to improve its digestibility utilization in food or feed. This study explores three different approaches for from Ulva fenestrata order maximize yield. Soluble was recovered either by mechanical pressing homogenization osmotic shock biomass...

This study investigated the nutritional quality of soybean meal (SBM) fermented by Aspergillus (FSBMA) and/or followed by Lactobacillus fermentation (FSBMA+L). Both fermented products significantly improved protein utilization of SBM with higher trichloroacetic acid (TCA) soluble true protein content, in vitro protein digestibility and available lysine content, especially in FSBMA+L. Moreover, ...

This study was conducted to determine the chemical composition and metabolizable energy of poultry by-product meal (PBPM) from two slaughterhouses in Iran. Samples were analyzed for dry matter, crude protein, ash, ether extract and gross energy. The amounts of calcium, phosphorus, sodium, potassium, Magnesium, Iron, Manganese, copper and Zinc were determined. The apparent metabolizable energy (...