Chitinases are enzymes capable of hydrolyzing the β1-4 bond of the chitin chain, these belong to two main families of carbohydrate hydrolases, 18 and 19, and this classification depends on sequence, structure and mechanism of action. Some chitinases of family 18, in addition to their hydrolytic activity possess transglycosylation activity,...
The chitin preparation was carried out with a previous treatment of the shrimp waste with lactic acid bacteria and followed by enzymatic deproteinization in order to complete fully biological purification. This process is an alternative to chemical treatments and can obtain products that are not damaged in its molecular structure...
La fermentación láctica ha sido utilizada desde tiempos inmemoriales para aumentar la vida de anaquel de los alimentos, debido principalmente a la producción de ácidos orgánicos y compuestos con actividad antimicrobiana. En la presente tesis se estudió el uso de la fermentación láctica del desecho de camarón para la recuperación...
Chitin is a biodegradable biopolymer that can be obtained from shrimp wastes employing thermochemical and biological methods. The latter are emerging as a green, cleaner, eco- friendly, and economical process. In this regard, lactic acid fermentations (LAF) of shrimp wastes (Litopeneus vannamei) were carried out with starters of lactic acid...
La quitina, biopolímero componente del exoesqueleto de crustáceos, se extrae comúnmente mediante métodos químicos, lo que genera problemas ambientales así como disminución del peso molecular de la quitina disminuyendo sus aplicaciones posteriores. En virtud de lo anterior, el presente trabajo estudió la extracción biológica de quitina mediante fermentación con dos...
