Porungo cheese whey: a new substrate to produce β-galactosidase.

The bioconversion of porungo cheese whey to produce β-galactosidase in batch system was studied. The whey released after curd cutting and precipitation during porungo cheese production was collected in borosilicate flasks. Two strains of Kluyveromyces marxianus, CCT 4086 and CBS 6556, and whey supplementation with different nitrogen sources were evaluated.

Galactooligosaccharides: Physiological benefits, production strategies, and industrial application.

The concern for better life quality has been encouraging the bioprocess industries to develop technological strategies to obtain new biomolecules. Galactooligosaccharides (GOS) are an important class of food-grade oligosaccharides, being classified as non-digestible, and which present prebiotic potential, promoting better conditions of health and well-being. The main benefits include the selective stimulation of beneficial microorganisms, the decrease in the formation of toxic compounds, the increase in the absorption of minerals, improvement of an immune response, and a reduction in the severity of obesity and diabetes.

Comparison of short-stem versus conventional stem for hip arthroplasty in patients younger than 60 years: 7-14 years follow-up.

Purpose: Short-stem prostheses in hip arthroplasty have emerged as an alternative to conventional stems, especially in younger patients. The purpose of this study was to compare functional and radiological results of a short metaphyseal fitting cementless stem versus a conventional stem implant, in patients younger than 60 years.

Methods: All patients operated from January 2006 to April 2013 were included, obtaining a minimum follow-up of 7 years.

Pseudotumor complicating a well-fixed ceramic-on-polyethylene total hip arthroplasty.

A suspicious area surrounding hardware components, usually following arthroplasty, should raise awareness to a possible particle related disease. Even in the presence of confusing or less typical symptoms, clinicians and surgeons must join efforts to diagnose and treat the patient effectively and in the appropriate time.