Bajerska Joanna, Chmurzynska Agata, Mildner-Szkudlarz Sylwia, Drzymała-Czyż Sławomira
Department of Human Nutrition and Hygiene, Poznań University of Life Sciences, Wojska Polskiego 31, 60-624, Poznań, Poland.
Institute of Food Technology of Plant Origin, Poznań University of Life Sciences, Wojska Polskiego 31, 60-624, Poznań, Poland.
J Sci Food Agric. 2015 Jul;95(9):1918-24. doi: 10.1002/jsfa.6899. Epub 2014 Oct 6.
Tomato pomace (TP), obtained as a residue of tomato processing, was used to enrich rye bread (RB). The sensory profile of this functional bread (RB+TP) was characterised, and its fat absorption and lipid metabolism properties in high-fat-fed rats were studied.
Intake of the HF diet containing RB, RB+TP, or TP alone increased faecal energy and fat excretion, but did not affect animal growth or visceral fat weight. Both RB and RB+TP diminished the negative impact of the HF diet, lowering the atherogenic index of plasma (AIP) and the total liver lipid contents by 31.6% and 24%, respectively. The experimental diets had no effect on liver S-adenosylhomocysteine (SAH) concentrations or on the S-adenosylmethionine (SAM) to SAH ratio, though the lowest SAM levels were observed in the HF+TP group. No significant differences were detected in blood homocysteine, triglycerides, glucose or insulin levels.
Although RB+TP incorporated into a HF diet may lead to a decrease in AIP and total liver lipid content, this effect does not depend on the components of TP, but rather on the RB ingredients. However, pure TP, in the doses used in this study, may potentially play a role in the energy balance via faecal loss of lipids.
番茄渣（TP）是番茄加工的残余物，被用于强化黑麦面包（RB）。对这种功能性面包（RB + TP）的感官特性进行了表征，并研究了其在高脂喂养大鼠中的脂肪吸收和脂质代谢特性。
摄入含RB、RB + TP或仅含TP的高脂饮食可增加粪便能量和脂肪排泄，但不影响动物生长或内脏脂肪重量。RB和RB + TP均减轻了高脂饮食的负面影响，使血浆动脉粥样硬化指数（AIP）和肝脏总脂质含量分别降低了31.6%和24%。实验饮食对肝脏S - 腺苷同型半胱氨酸（SAH）浓度或S - 腺苷甲硫氨酸（SAM）与SAH的比值没有影响，尽管在HF + TP组中观察到最低的SAM水平。在血液同型半胱氨酸、甘油三酯、葡萄糖或胰岛素水平方面未检测到显著差异。
虽然添加到高脂饮食中的RB + TP可能会导致AIP和肝脏总脂质含量降低，但这种效果并不取决于TP的成分，而是取决于RB的成分。然而，本研究中使用剂量的纯TP可能通过粪便脂质流失在能量平衡中发挥潜在作用。
