Algal hydrolysat for treatment of crop and process for its production

摘要

The invention relates to a composition for the treatment of crops, said composition consisting of: a1) 79.3 - 83.4 parts of hydrolysed algae proteins containing 5.9 - 6.3 parts of proline, or in the case of selenium supplementation a2) 55.8 - 58.7 of hydrolysed algae protein containing 4.2 - 4.4 parts of proline and 23.5 - 24.7 parts of hydrolysed algae protein chelated to 1.2 -1.25 parts of selenium; b) 2.0 - 2.1 of total betaines; c) 0.1 parts - 0.11 of parts cytokinins; d) 8.2.- 8.7 parts of carbohydrates; and e) the balance of water; per 100 parts of composition. The invention relates further to the process incorporating following steps: micro-algal biomass lysis with a combination of microbial hydrolases and ultrasonication; concentration of osmoprotectants and phytohormones in the extract by tangential ultrafiltration; hydrolysis of proteins from retentate with proteases; in the case of selenium supplementation chelation of selenium with a part of protein hydrolysate; mixing osmoprotectants and phytohormones concentrate with protein hydrolysate, and in case of selenium supplementation with protein hydrolysate chelated to selenium; and spray-drying of the mixture.