2 results about "Glucose signaling" patented technology

A method for controlling glucose in a flexibly structured dual-hormone artificial pancreas that manages optional meal and / or exercise notifications using coordinated control actions, which comprises: measuring a plasma glucose signal; calculating an incremental plasma glucose measurement (y); defining a model for incremental plasma glucose; defining a carbohydrate intake as dependent on a carbohydrate content estimated by the patient; defining an expected postprandial incremental plasma glucose y*(s) depending on the insulin bolus administered; defining a corrected incremental plasma glucose y(s), a corrected insulin infusion u(s), and a corrected carbohydrate d(s) intake; defining a virtual control action µ(s), divided into regulatory actions µr and counter-regulatory actions µcr and calculating control actions using a 2-DOF feedback controller with a nominal value pre-filter Fr(s).

The application discloses a method for synchronously and efficiently metabolizing mixed sugar based on a Pichia pastoris mixed flora and application thereof. The Pichia pastoris mixed flora comprises at least one Pichia pastoris engineering strain for xylose metabolism and one Pichia pastoris engineering strain for oligosaccharide metabolism. By means of functional division of the strains, the interference of glucose signal on the xylose metabolic pathway is physically and genetically isolated, and the synchronous metabolism of xylose and cellulosic oligosaccharide is realized. The metabolic burden of each strain is reduced, the exclusive pathway of each strain can be optimized, the pathway competition and the imbalance of auxiliary factors are avoided, the overall fermentation rate and the sugar conversion rate are improved. The mixed flora system has a certain buffering capacity to environmental fluctuations and is more stable than a single strain. The strategy is particularly suitable for complex lignocellulose hydrolysate, and can effectively solve the problem of asynchronous utilization of multiple fermentable sugars in the lignocellulose hydrolysate and improve the total utilization rate of raw materials. In the process of simultaneous saccharification and fermentation of the mixed flora, the utilization rate of xylose and cellulosic oligosaccharide is improved, and the integrated biorefinery cycle is shortened.