Thermoplastic Starch with Maltodextrin: Preparation, Morphology, Rheology, and Mechanical Properties.

This work describes the preparation of highly homogeneous thermoplastic starches (TPS's) with the addition of 0, 5, or 10 wt.% of maltodextrin (MD) and 0 or 3 wt.% of TiO nanoparticles.

An eco-friendly, highly efficient, and transparent coating derived from guar gum and citric acid for flame retardant treatment of cotton fabrics.

A highly efficient, bio-ecofriendly, and transparent flame retardant (FR) for cotton fabric was developed and deposited onto the cellulose skeletal structure of cotton fabric through a one-pot sol-gel process. The flame retardant functional coating is composed of ammonium polyphosphate (APP), guar gum (GG), citric acid (CA), and a negligible amount of catalyst. Cotton fabrics were impregnated with different concentrations of ammonium polyphosphate and guar gum, with citric acid as a crosslinking agent.

Human metabolite-derived alkylsuccinate/dilinoleate copolymers: from synthesis to application.

The advances in polymer chemistry have allowed the preparation of biomedical polymers using human metabolites as monomers that can hold unique properties beyond the required biodegradability and biocompatibility. Herein, we demonstrate the use of endogenous human metabolites (succinic and dilinoleic acids) as monomeric building blocks to develop a new series of renewable resource-based biodegradable and biocompatible copolyesters. The novel copolyesters were characterized in detail employing several standard techniques, namely 1H NMR, 13C NMR, and FTIR spectroscopy and SEC, followed by an in-depth thermomechanical and surface characterization of their resulting thin films (DSC, TGA, DMTA, tensile tests, AFM, and contact angle measurements).

[Changes in metabolic indicators in cattle by season of the year].

The study was aimed at informing about the results of metabolic trials in large cattle stocks for the period from 1977 to 1980, particularly in view of the dynamics of changes in different metabolic parameters in each year season. The histogram method of statistical evaluation was used. Attention is drawn to the prevailing risk factors in each season and it is possible to investigate the general trend of the rise of new metabolic disorders, or suppression of older ones, in large cattle stocks.

[Gamma-glutamyltransferase in the blood of cattle].

Information is given on a long-term observation of gMT activities in the blood of cattle, aimed at using the results to interpret metabolic tests, especially tests of the function of liver. Dynamics of changes in the gMT activities was studied in the year seasons and the per cent activities in the decades (from 20 to 100 U per 1) in different groups of cows according to their reproduction cycle. In the part discussion relationships are given between the gMT activities and other findings obtained from metabolic tests.

[Metabolic indicators in cows from herds with healthy and diseased calves].

Attention is drawn to some risk factors that may appear in cows as a result of metabolic disorders in large cattle stocks, thus implying a hazard for the health of calves. The mutual relationships of these factors were studied in four categories of animals: l) cows after calving with clinically healthy calves (62 cows), 2) cows after calving with diseased calves (63 cows), 3) highly pregnant cows from herds without clinically diseased calves (66 cows), 4) highly pregnant cows in herds with diseased calves (123 cows). The metabolic studies in the cows included the determination of 22 parameters of blood biochemistry, haematology, and urinary biochemistry.

[Evaluation and comparison of acid-base findings obtained using the partial and Astrup's technic in cattle].

The aim of the study was to compare the acid-base (AB-) findings in cattle obtained parallelly by the equilibration method after Astrup and the partial method (titration determination of total carbon dioxide in blood plasma) and at the same time to determine pH, net acid-base exudate in urine and the specific weight of urine. Altogether we made 65 parallel examinations in three groups of cows according to phases of reproduction. In 70.