Influence of crude extract and bioactive fractions of Ilex paraguariensis A. St. Hil. (yerba mate) on the Wistar rat lipid metabolism. (May 2015)

• Record Type: Journal Article
• Authors: de Resende, Pedro Ernesto; Kaiser, Samuel; Pittol, Vanessa; Hoefel, Ana Lúcia; D'Agostini Silva, Raquel; Vieira Marques, Cláudia; Kucharski, Luiz Carlos; Ortega, George González
• Is Part Of: Journal of functional foods. Volume 15(2015)
• Page Start: 440
• Page End: 451
• Publication Date: 2015-05
• Subjects: Yerba mate -- Ilex paraguariensis -- Polyphenols -- Methylxanthines -- Saponins -- Lipid metabolism; YME yerba mate extract -- MXPL methylxanthines–polyphenols concentrated fraction -- SFL saponins concentrated fraction -- HPLC–PDA high performance liquid chromatography–photo diode array -- UPLC/Q-TOF-MS ultra performance liquid chromatography coupled with electrospray time-of-flight mass spectrometry -- LDL low-density lipoprotein -- HDL high-density lipoprotein -- RSM response surface method -- KRB Krebs–Ringer buffer -- GOT glutamic oxaloacetic transaminase -- GPT glutamic pyruvic transaminase; Functional foods -- Analysis -- Periodicals; Food -- Biotechnology -- Periodicals; Nutrition -- Periodicals; 613.2
• DOI: 10.1016/j.jff.2015.03.040
• Languages: English
• ISSNs: 1756-4646

Abstract

Highlights: Yerba mate extract and its fractions alter the lipid metabolism of Wistar rats fed with a high-fat diet. The extract reduced fat weight gain and one of the fractions decrease cholesterol, LDL and triacylglicerols plasma levels. The methylxanthines-polyphenols fraction increased hepatic glycogen synthesis, and lipolysis in adipose tissue. Both extract and fractions were able to setback the hepatic lipogenesis induced by the high-fat diet entirely. Abstract: The influence of yerba mate extract (YME) and two concentrated fractions of methylxanthines–polyphenols (MXPL) and saponins (SFL) from yerba mate on the lipid metabolism of Wistar rats fed with a high-fat diet were examined. A Box–Behnken design was employed for the optimization of yerba mate extraction. Subsequently, one-step separation using solid phase fractionation was applied. HPLC–PDA and UPLC/Q-TOF-MS were used for quantification and identification of the main compounds. YME induced reductions on intra-abdominal fat weight gain and LDL plasma level. MXPL decreased plasma levels of cholesterol, LDL and triacylglycerols. In addition, this fraction increased lipogenesis of the muscle, hepatic glycogen synthesis and lipolysis in adipose tissue. SFL enhanced lipogenesis in adipose tissue and also fecal fat excretion comparing to both controls. Moreover, all mate preparations could entirely revert the hepatic lipogenesis induced by the high-fat diet. Thus, the yerba mate extract and fractions exhibited a potential anti-obesity effect on lipid metabolism of the Wistar rat and deserve further investigation.