This study aims to figure out the structure of the microbial community in traditional sourdough and the different flavor components of Chinese steamed bread(CSB) made with it. The sourdough samples were selected from Shanxi, Henan and Shandong provinces. The microbial community composition of the sourdoughs was analyzed by a culture-dependent method and high-throughput sequencing, and the flavor compounds of the steamed breads were determined by the solid-phase micro extraction (SPME) method coupled with gas chromatography/mass spectroscopy (GC/MS). The results showed that: in the 28 samples collected, the pH ranged from 3.50 to 4.91, and the total titratable acid (TTA) values ranged from 2.... More >

Ensiling technique is becoming a common way to preserve fresh corn and grass. This study aimed at evaluating the silages’ quality with a new type of inoculants designed based on the microflora information of the native silages. A total of 33 silage samples were analyzed for their microbial community structure by high throughput sequencing. A total of 73 dominant strains were isolated with a clear goal. The corn was ensiled by dominant strains (Lactobacillus buchneri II JC1-5: Acetobacter pasteurianus DHL-8 = 4:3; 109 CFU/g) as inoculants. In a 15-day trial period, the aerobic stability of this inoculated silage was significantly higher than the control group. There was a positive correlati... More >