Recent Patents on Biotechnology - Volume 14, Issue 3, 2020

Biosurfactants have a biological origin, and are widely known as surface active agents. Different classes of biosurfactant have significant importance in both the biotechnological and microbiological arena. Pseudomonas aeruginosa, Bacillus subtilis and Candida sp. are important classes of microorganisms that are highly investigated for the production of rhamnolipids (RLs) biosurfactants. Rhamnolipids have uniqu Read More

Background: Colorant-producing microorganisms are quite common in nature. These biomolecules present many biological activities such as antitumoral, antimicrobial and antioxidant, in addition to the various nuances of color, making them of special technological importance to the industrial sectors. Objective: This study aims to conduct a technological mapping in the patent, at European patent Office (EPO), in order Read More

Background: There are several methods for the quantification of biomass in SSF, such as glucosamine measurement, ergosterol content, protein concentration, change in dry weight or evolution of CO2 production. However, all have drawbacks when obtaining accurate data on the progress of the SSF due to the dispersion in cell growth on the solid substrate, and the difficulty encountered in separating the biomass. Studying the Read More

Background: Gracilaria has been shown to be an important source of marine bioactive natural biomaterials and compounds. Although there are no enough patents used Gracilaria worldwide, the current study tries to put the Gracilaria on the spot for further important patents in the future. Objective: The current study investigates the pharmaceuticals and biochemical activity of Gracilaria because no previous studies have b Read More

Background: Polyethylene terephthalate (PET) is the most widely produced polyester plastic in the world. PET is very difficult to catalyze or biological depolymerization due to the limited access to ester bonds. Consequently, plastic will be stockpiled or flowed into the environment which is projected until hundreds of years. The most effective and environmental friendly plastic degradation method is biodegradation with micr Read More

Background: Arginine deiminase is a bacterial enzyme, which degrades L-arginine. Some human cancers such as hepatocellular carcinoma (HCC) and melanoma are auxotrophic for arginine. Therefore, PEGylated arginine deiminase (ADI-PEG20) is a good anticancer candidate with antitumor effects. It causes local depletion of L-arginine and growth inhibition in arginineauxotrophic tumor cells. The FDA and EMA have granted o Read More