Upcycling of Enzymatically Recovered Amino Acids from Textile Waste Blends: Approaches for Production of Valuable Second-Generation Bioproducts.

Tremendous quantities of textile waste generated and primarily landfilled annually represent a huge risk of contaminating the environment, together with loss of valuable resources. Especially, blended fabrics further pose a challenge for recycling and valorization strategies, while enzymatic hydrolysis offers a highly specific and environmentally friendly solution. In this study, we demonstrate that proteases specifically hydrolyze the wool components in blends with polyester, allowing recovery of pure polyester fibers as well as amino acids and peptides as platform molecules for further valorization.

Recovery of pure PET from wool/PET/elastane textile waste through step-wise enzymatic and chemical processing.

Textile waste is mostly incinerated because few recycling processes are available to recover valuable materials. In this work, a feasible chemo-enzymatic recycling process of wool/polyethylene terephthalate (PET)/elastane blends to recover pure PET is for the first time successfully demonstrated. Two novel enzyme formulations were selected for wool hydrolysis, whereas the recovered amino acids were quantified using high-performance liquid chromatography and two assays (Ninhydrin and Folin-Ciocalteu).

Depletion of Boric Acid and Cobalt from Cultivation Media: Impact on Recombinant Protein Production with .

The REACH regulation stands for "Registration, Evaluation, Authorization and Restriction of Chemicals" and defines certain substances as harmful to human health and the environment. This urges manufacturers to adapt production processes. Boric acid and cobalt dichloride represent such harmful ingredients, but are commonly used in yeast cultivation media.

[Right ventricular outflow tract reconstruction in adolescents and adults after previous repair of congenital heart defects].

Unlabelled: Due to successful surgical treatment of congenital heart defects in infants and children, the number of patients who reach the adolescent/adult age is continuously increasing.

Aims: The authors sought to identify the short- and medium-term outcomes of reconstruction of right ventricular outflow tract in adolescents and adults who underwent surgical intervention for congenital heart defect in infancy or early childhood.

Methods: Between 2001 and 2012, 48 patients (age: 15-39, mean 21 years) (30 tetralogy of Fallot, 11 pulmonary atresia + ventricular septal defect, 6 transposition of great arteries + ventricular septal defect + left ventricular outflow tract obstruction, and 1 truncus arteriosus) had repeat operation because of right ventricular dysfunction.

[Histological investigations in ambulatory oral surgery practice].

In the practice of oral surgery correspondence with the pathologist is required in order to identify the lesions in question by histologic examination. By current legal regulations the histological evaluation of removed tissues is mandatory. In the presentation the authors process the data obtained in their Department since 2008.