Carnauba wax, the most important vegetable wax under the economic and extracted from the leaves of the carnauba (Copernicia prunifera (Miller) H. E. Moore), is extensively applied in food due to its physiochemical characteristics with a majority of esters. p-Methoxycinnamic acid diesters obtained from the ceriferous powder of carnauba wax (PCO-C) have been associated with biological actions. However, being a versatile product, many types of research have been carried out seeking to expand the possibilities of applications of this raw material. Furthermore, different experimental studies on the pharmacological activities have also been undertaken in recent years and have tested various biological activities, such as hypolipidemic, hypocholesterolemic and hypoglycemic effects in mice. Therefore, in this book chapter, it is reviewing the development of a process of extraction of 4-hydroxycinnamic acid diesters of carnauba wax powder and investigates their biological actions and physical and chemical characteristics.
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The aim was to characterize acute exercise-induced changes in salivary proteins of street runners. Saliva samples from 12 adult male athletes were collected before and immediately after a street race. Two groups were formed based on the distance covered, 5 km (n=4) and 10 km (n=8). Samples were subjected to depletion of amylase, albumin and immunoglobulin G. Then they were concentrated, digested and analyzed by nano-UPLC-tandem nano-ESI-MSE. A total of 69 proteins were identified. Significant changes were observed in the expression of 15 proteins in the 5 km group and 13 proteins in the 10 km group. Among the proteins with altered expression, only 7 had already been described in the literature in similar models (Alpha-Amylase 1, Lactoperoxidase, Alpha Skeletal Muscle Actin, Cystatin-B, Cystatin- SN, Cystatin- SA and Androgen-regulated Protein 3B in the submaxillary gland). This study has shown that street running induces acute changes in the salivary proteome. The results obtained add to the limited data available in the literature in the search for a better understanding of the acute effects of exercise.
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