Rhône-Poulenc

About: Rhône-Poulenc is a based out in . It is known for research contribution in the topics: Alkyl & Catalysis. The organization has 8909 authors who have published 8934 publications receiving 182241 citations. The organization is also known as: Rhone-Poulenc.

Hydrophilic PVDF semipermeable membrane

Abstract: Hydrophilic semipermeable membranes which retain their capacity for filtration, even after drying, and which are well adapted for either ultrafiltration or microfiltration, are comprised of at least 70% by weight of polyvinylidene fluoride (PVFD) and up to 30% by weight of a hydrophilic polymer compatible therewith, e.g., a cellulose acetate or sulfonated polysulfone.

Anti-soiling and anti-redeposition adjuvants and detergent compositions comprised thereof

Abstract: Novel anti-soiling and anti-redeposition adjuvants for detergent compositions include at least one polymer A, said polymer itself having anti-soiling and anti-redeposition properties, at least one solubilizing and dispersing agent B for said polymer A, and at least one water repellent C for said agent B.

Transient Accumulation of Asparagine in Sycamore Cells after a Long Period of Sucrose Starvation

Abstract: The mobilization of stored carbohydrates (sucrose and starch) and proteins during sucrose starvation was studied with sycamore (Acer pseudoplatanus L.) cells. When almost all the intracellular carbohydrate pools had disappeared, the cell protein content declined progressively whereas asparagine determined by either 13C nuclear magnetic resonance or reversed phase high performance liquid chromatography increased steadily. After a long period of sucrose starvation, the most intense resonances in the 13C nuclear magnetic resonance spectra were from citrate and asparagine. The total amounts of asparagine (expressed as nitrogen) and free amino acids that appeared after a long period of sucrose deprivation corresponded roughly to the total amount of protein (expressed as nitrogen), that disappeared within the same period of time. Addition of sucrose in the culture medium after a long period of sucrose starvation led to a disappearance of asparagine. These results suggest therefore that the presence of asparagine in plant cells in large excess should be considered as a good marker of protein utilization after a long period of sucrose starvation and is very likely related to stress.