A study on the high efficiency reduction of -nitrophenol (4-NP) by a Fe(OH)/FeO@Au composite catalyst.

Precious metal nanometric catalysts are widely used in the removal of harmful substances. In the process of synthesis and catalytic reaction, it is particularly important to study green and simple synthesis methods and high catalytic efficiency. In this paper, a green one-step method was used to synthesize the Fe(OH)/FeO@Au composite catalyst, in which Au was single atom-dispersed.

Isolation of antioxidant peptides from yak casein hydrolysate.

Enzymatic hydrolysis of protein is a principal method to obtain antioxidant peptides. A yak casein hydrolysate (YCH) was prepared by alcalase and trypsin digestion. An ultrafiltration membrane system was used to divide the hydrolysate into four molecular weight fractions; YCH-4 (<3 kDa) had the highest antioxidant activity.

Preparation of sheep bone collagen peptide-calcium chelate using enzymolysis-fermentation methodology and its structural characterization and stability analysis.

In this study, enzymatic hydrolysis and fermentation were used in combination to prepare collagen peptide with high free calcium content, followed by the addition of anhydrous ethanol to obtain peptide-calcium chelate. The optimal conditions for the fermentation of enzymatic hydrolysate (glucose 3%, inoculum size 6%, 24.5 h, 37 °C and pH 6.

The complete mitochondrial genome of the Qinghai Tibetan pig.

The complete mitochondrial genome sequence of the Qinghai Tibetan pig was first determined in this study. The total length of the mitogenome is 16,720 bp. Indicating the an A + T(60.