Effects of testicular status and feeding diets containing date palm by-product on the sensory attributes of Omani lamb meat.

The effects of testicular status and diet on the tenderness and flavour intensity of Omani lamb meat were evaluated. Thirty male lambs were divided into three testicular status treatments shortly after birth, entire, castrated or induced to cryptorchidism. The animals were fed a maize and soya bean meal based diet, isocalorically supplemented with either palm fronds or Rhodesgrass hay.

Functional Characteristics of Extracellular Vesicles Produced by Pseudomonas fragi ATCC 4973.

Extracellular vesicles, "blebs," were isolated from Pseudomas fragi ATCC 4973 grown in liquid culture. Vesicles were isolated by ammonium sulfate precipitation, centrifugation, and dialysis of the supernatant of an 82 h culture of P. fragi in trypticase-soy broth.

Centroid search optimization of cultural conditions affecting the production of extracellular proteinase by Pseudomonas fragi ATCC 4973.

The production of extracellular proteinase by Pseudomonas fragi ATCC 4973 grown in a defined citrate medium, containing glutamine as the sole nitrogen source, was determined under varying cultural conditions. Simultaneous evaluation of cultural conditions using a 'centroid search' optimization technique showed that the optimum cultural conditions for proteinase production by Ps. fragi were: incubation temperature, 12.