Digestive rendering

Nitric Acid and Organic Substances. Mixts of perchloric and nitric ac are frequently used to digest (render w sol) organic materials such as animal and vegetable oils, milk, homogenized animal tissues, etc. If the mixts are heated too... 

Handling does not end with entry into the digester since contents must be mixed, scum formation prevented and effluent removed to disposal or storage. Welsh et al (8) reported that anaerobic digestion renders the effluent less offensive and more pumpable with fewer settling problems. 

The Digestion of the Stone, Cooking, Maturing, Dividing Digestion renders the humours thin and spongy, matures them, and prepares them for their separation. They speak of it in an extraordinary manner. 

Zeolite monlith with macropores can be considered as a micro-macroporous material. Mechanically stable zeolite monoliths[177] containing 3-D, ordered, closed macropores have been fabricated by hydrothermal treatment of nano-zeolite seeded mesoporous silica spheres. The easy speed of sedimentation and digestion renders the whole process suitable for large-scale production of macroporous zeolite materials. 

A dmg-dedicated osmotic implant for human and veterinary use has been developed to dehver hormones, peptides, and proteins that are digested or rendered inactive after oral adrninistration (106). 

To check if PemB is surface exposed, E. chrysanthemi cells were subjected to proteolysis. Treatment of the cell suspension with trypsin, proteinase K or chimotrypsin at a concentration of 0.1 to 1 mg/ml for 1 h did not cause PemB proteolysis or its liberation into the medium. Cell pre-treatment with EDTA-lysozyme, which renders the periplasmic proteins accessible to proteases, gave no effect. PemB was also resistant to proteolytic digestion in extract of cells disrupted by sonication or in a French press. Only addition of Triton X-100 (up to 0.1%) causing formation of the micelles with PemB lead to a quick proteolyis of this protein (data not shown). In another approach to analyse the PemB exposition, bacterial cells were labelled with sulfo-NHS-biotin. This compound is unable to cross membranes and biotinylation... 

Tannins derive their name from their ability to tan (i.e. they combine with protein). They render plants less palatable and impair digestion by binding with the buccal mucosa, dietaiy proteins, and digestive enzymes of the animal. Tannins are thought to bind to proteins upon destruction of plant tissue by herbivores. This reduces the nutritive value of the plant to the herbivore. Some tannins such as oak gallotannins, are even toxic to livestock and rabbits (Meyer and Karasov, 1991). However, Martin and Martin (1983) have questioned the role of tannins as plant defense against herbivores. 

The appearance of a substance as rare as tellurium in the Falun sulfur led me to try to isolate it, in order to obtain more exact and certain ideas regarding it. I therefore had the whole mass at the bottom of the lead chamber removed. While still wet it had a reddish color, which, upon desiccation, became almost yellow. It weighed about four pounds. It was treated with aqua regia added in sufficient quantity to render the mass pulpy, and was finally digested at a moderate temperature. It gradually changed color, the red disappeared, and... 

The initial Schiff base is digestible but after the Amadori rearrangement, the products are not metabolically available. Since lysine is the amino acid most likely to be involved and is an essential amino acid, Maillard browning reduces the biological value of proteins. Interaction of lysine with lactose renders the adjacent peptide bond resistant to hydrolysis by trypsin, thereby reducing the digestibility of the protein. 

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