The use of hair chromium (Cr) concentrations as an index of Cr exposure of tannery workers was investigated. As has been shown earlier, Cr from Cr III compounds used in the leather tanning industry is absorbed because concentrations of Cr in serum and urine of tannery workers are significantly increased compared with corresponding concentrations for unexposed controls. Hair samples were collect...

AIMS To assess how a 10 year extension of the follow up period affected cancer incidence in the Swedish leather tanning cohort. METHODS A cohort of 2027 tannery workers (of which 482 were women) who had been employed for at least one year between 1900 and 1989 at one of three Swedish leather tanneries, was established. The start of observation varied between 1958 and 1966 for the three plants...

0016-2361/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.fuel.2011.08.055 ⇑ Corresponding author at: Department of Automo Kocaeli University, 41380 Kocaeli, Turkey. Tel.: +90 3032203. E-mail addresses: [email protected] (M. Canakci). In this study, animal fat obtained from leather industry fleshing wastes was used to produce methyl ester. The acid value of the fleshing oil was 24...

To investigate the characteristics of skin and leather of hairy goats according to their sex and age, 120 goat skins were selected from the western part of Iran. Results indicated that sex and age had significant effects on weight and area of skin and leather. Moreover, sex and age had significant effects on thickness in different parts of skin except the belly. In this regard, the overall mean...

Palmoplantar pustulosis (PPP) is a chronic and relapsing disease of the palms soles, which tends to be difficult treat. Classically it was described as subtype psoriasis. Nowadays regarded separate entity, although plaque-type psoriasis affects concomitantly many patients with PPP. A link between allergic contact dermatitis (ACD) PPP has been described, former may encompass potential perpetuate...

As the market demand for environmentally friendly synthetic leather products has increased, water-based manufacturing technology and product performance have made great progress. Along with explosive growth of coffee grounds generated by urban consumers in their daily lives, research on sustainable reuse gradually become a trend field. This study discusses method preparing that reuses is assess...

As an alternative to the traditional process based on the use of sulfides, an unhairing process in drum by hydrogen peroxide, named DEPOXO, was developed for the production of high-quality bovine upper leather. A preliminary investigation at laboratory scale has allowed to set out the optimal process conditions, in terms of H2O2 dosage (9 %) and pH (12.5), in order to achieve an effective unhai...

BACKGROUND Approximately 1-3% of the adult population in Europe are allergic to chromium (Cr). A new restriction in Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) based on the ISO 17075 standard has recently been adopted in the EU to limit Cr(VI) in consumer and occupational leather products to < 3 mg/kg. OBJECTIVES To investigate the influence of storage conditi...

Proteases are very important industrial enzymes, which contribute about 60% of the total world enzyme market. Among the various proteases, bacterial proteases are the most significant, compared with animal and fungal proteases (Rahman et al., 1994) and among bacteria, Bacillus sp are specific producers of extra-cellular proteases (Coolbear et al., 1992; Banerjee et al., 1999). These enzymes hav...