Fruit Bagasse Phytochemicals from Malpighia Emarginata Rich in Enzymatic Inhibitor with Modulatory Action on Hemostatic Processes (Englisch)

In: Journal of Food Science   ;  83 ,  11  ;  2840-2849  ;  2018

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Agro‐industrial wastes are promising sources of phytochemicals for the development of products to be used in health promotion and maintenance. In this study, extracts from acerola bagasse (AB) were characterized by HPLC, and evaluated according to its modulatory action on phospholipases A2 and proteases involved in processes such as inflammation and blood clotting. Snake venoms were used as biological tools once they have high functional and structural homology between their enzymes and human enzymes. Two types of extracts were prepared from AB: aqueous and methanolic. These extracts, evaluated at different proportions (venom:extract, w:w), significantly inhibited the phospholipase activity induced by the venoms of Bothrops moojeni, Bothrops atrox (11% to 31%), and Crotalus durissus terrificus (C. d. t.) (11% to 19%). The hemolytic activity induced by the venoms of B. moojeni and C. d. t. was better inhibited by the methanolic extract (inhibition between 23% and 48%). Thrombolysis induced by the venoms of B. moojeni and C. d. t. was inhibited by both extracts, with inhibition ranging from 13% to 63% for the aqueous extract, and from 12% to 92% for the methanolic one. Both extracts increased the time of coagulation induced by the venoms of B. moojeni and Lachesis muta muta in 26 and up to 68 s. These inhibitory actions were related to the following phenolic compounds present in the extract of AB: gallic acid, catechin, epigallocatechin gallate, epicatechin, syringic acid, p‐coumaric acid, and quercetin. Additional studies are needed to confirm their potential use for nutraceutical purposes.

Agro‐industrial wastes are promising sources of phytochemicals for the development of products that can be used by pharmaceutical, cosmetics, and food industries. Studies report the use of the acerola bagasse extract in health improvement. However, its toxic‐pharmacological characterization is still scarce. In this study, the extracts of acerola bagasse presented phenolic compounds that can modulate the activity of enzymes such as phospholipases A2 and proteases that act on the coagulant/anticoagulant and thrombotic/thrombolytic activities and the break of phospholipids, decreasing the inflammation and platelet aggregation. Although the in vivo effects of the extracts are not fully understood, this study shed light upon the possibilities of their usage.

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| 2018