Biotechnology - Sciene

         Two kinds of Pleurotus oyster mushroom isolates were collected. The first isolate was the local type and the second isolate was the commercial type.Crude polysaccharide extract was isolated from Pleurotus oyster mushroom as a brown powder extract by using hot water extraction method.This crude extract was characterized by using molish test and phenol-sulphuric test.

Sixteen isolates of lactic acid bacteria were isolated from dairy products collected from Baghdad markets. The isolates were identified into 4 genera; Lactobacillus (6 isolates), Lactococcus (2 isolates), Pediococcus (4 isolates) and Leuconstec (4 isolates). Later, further identification of lactobacillus showed the isolates belonged to Lb. plantarum (Lb.1 and Lb.3), Lb. bulgaricus (Lb.4), Lb. acidophilus (Lb.2), Lb. brevis (Lb.5) and Lb.