PROCEDEUL MODIFICAT DE PRODUCERE BIOCHIMICĂ A CIANCOBALAMINEI (VITAMINA B12) DIN DEŞEURI AGROINDUSTRIALE 1. MODIFICĂRI TEHNOLOGICE PRIVIND INTENSIFICAREA PROCESULUI DE OBŢINERE A ADAOSULUI FURAJER

Victor COVALIOV, Valentin BOBEICĂ, Olga COVALIOVA Universitatea de Stat din Moldova

Аннотация

MODIFIED METHOD OF CYANCOBALAMIN (VITAMIN B12) PRODUCTION FROM AGRO-INDUSTRIAL WASTES: 1. TECHNOLOGICAL IMPROVEMENTS REGARDING INTENSIFICATION OF FORAGE ADDITIVE PRODUCTION PROCESS

The combined application of a series of new approaches, including chemical stimulation of methanogenesis, introduction of the compounds precursors of vitamin B12, recirculating of CO2 and adding of H2, have led to the 1,5-2 times enrichment with vitamin B12 of the sludge resulted from anaerob-digestive treatment of post-distillery vinasse. As a result, the quality improvement of vitaminized forage concentrate was reached, at the same time with the intensification of biomethane production, thus enhancing the ecologico-economic efficiency of the vinasse anaerobic treatment. A part of cobalamin is adsorbed on the particles of the forming sludge, whereas the remaining part is subjected to the advanced adsorption treatment on th mineral adsorbent – diatomite. The product formed can be used as a forage additive for cattle and poultry in agriculture. Keywords: cobalamin, forage concentrate vitaminized with B12, post-distillery vinasse, methanogenesis, CO2 recirculation, precursors of vitamin B12.