2 results about "Glucose degradation" patented technology

This invention relates to the field of food labeling technology, and more particularly to a smart label assembly and its preparation method. A smart label assembly includes: a substrate layer, a color-developing layer, and a protective layer; the color-developing layer is fixed to the surface of the substrate layer, and the protective layer covers the surface of the color-developing layer; the color-developing layer includes: an amine oxidase-type color-developing area and a glucose oxidase-type color-developing area. When livestock and poultry meat spoils and produces volatile amines and glucose degradation products, these two types of substances are catalyzed by amine oxidase and glucose oxidase, respectively, to produce ammonia and hydrogen peroxide, which then react with indicators on the label to produce color changes. The two types of labels are used together for mutual verification, forming a rapid detection method for livestock and poultry meat spoilage using smart labels, which can directly determine the quality of livestock and poultry meat. This label is simple to prepare, low in cost, and suitable for fresh livestock and poultry meat packaging, allowing monitoring from the freshness stage.

Methods and systems for pretreatment of organic waste prior to large-scale production of lactic acid from the organic waste are provided, which result in increased production yield. The pretreatment methods and systems of the present invention employ a heat treatment combined with an alpha-amylase treatment, followed by solid-liquid separation, sterilization and saccharification with a glucoamylase. The pretreatment methods and systems of the present invention reduce or even prevent unwanted utilization of reducing sugars that are naturally present within the waste and reduce formation of glucose-degradation products, thus preserving the glucose potential of the organic waste.