Carnivory in pitcher plants generally involves digestion of prey, by the plant itself, by symbionts, or both. While symbionts appear to be important in the digestion of prey in Sarracenia purpurea, the importance of pitcher-derived enzymes is less well documented. Our goal was to reduce microbial numbers in pitcher fluid in order to measure the acid phosphatase activity attributable to the pitc...

Anaerobic digestion of bioplastics' wastes may represent a valuable disposal strategy for these important substitutes plastics, in order to reduce their leakage into the environment and produce bioenergy form biomethane, contributing positively sustainability entire life chain. Only lab-scale data about anaerobic degradability biomethane production have been produced until now, using approaches...

The global population’s increasing demand for sustainable and nutritious food sources has led to the exploration of alternative approaches in livestock production. Edible insects have emerged as a promising solution due their nutritional composition, including high protein content, balanced fats, minerals, vitamins, bioactive peptides. Biofermentation offers viable method enhance value insect f...

The simplified acid peroxydisulphate digestion of soil water extract was evaluated for determination of total dis solved phosphorus by molybdenum-blue colorimetry in comparison with direct P-detection in water extract by the ICP-AES technique. The research was conducted on 79 agricultural soils with different agrochemical characteristics. The results of the colorimetric P detection in water ext...

1. The histological and physiological characteristics in vitro of mouse tumors have been compared. 2. Twenty-eight adenomas, 31 adenocarcinomas, 18 carcinomas, and a series of tumors from 2 transplantable carcinomas and from Ehrlich carcinoma have been cultivated in vitro. 3. The adenomas were characterized by cells of normal appearance, migrating quickly and organizing in thin membranes, by fe...

A composite microbial system (XDC-2) was used to pretreat and hydrolyze corn stalk to enhance anaerobic digestion. The results of pretreatment indicated that sCOD concentrations of hydrolysate were highest (8,233 mg/l) at the fifth day. XDC-2 efficiently degraded the corn stalk by nearly 45%, decreasing the cellulose content by 22.7% and the hemicellulose content by 74.1%. Total levels of volat...

High potential iron-sulfur protein isolated from both autotrophically and heterotrophically grown cells of Chromatium vinosum strain D was found to contain a single 85-amino acid residue polypeptide chain which is covalently linked to the iron-sulfur cluster via 4 residues of cysteine. The molecular weight of the protein, including the 4 atoms of iron and acid labile sulfur, is 9,254. The iron-...

Tryptic digestion of the A protein (a! subunit) of the tryptophan synthetase of Escherichia coli and separation of tryptic peptides by column and paper chromatography yielded 22 nonoverlapping peptides of the total of 25 anticipated on the basis of total amino acid composition of the A protein. The amino acid composition and sequence of each purified peptide were determined. These peptides acco...

Fresh Lotus corniculatus containing 27 g extractable condensed tannin (CT)/kg dry matter (DM) and 8 g bound CT/kg DM was fed at hourly intervals to sheep held in metabolism cages to study the effects of CT on nutrient digestion and on metabolism of methionine, cystine and inorganic sulphate in plasma. Polyethylene glycol (PEG) was continuously infused into the rumen of half the sheep to remove ...

peptides derived from the protein by treating with cyanogen bromide followed by chymotryptic digestion. The complete amino acid sequence of 103 residues was deduced. The number of total amino acid residues was less than that of other vertebrate cytochromes c (104 residues) with the exception of that of tuna cyto chrome c. Only difference in the amino acid sequence between the tuna protein and t...