Effects of Untreated and Thermally Treated Lupin Protein on Plasma and Liver Lipids of Rats Fed a Hypercholesterolemic High Fat or High Carbohydrate Diet |
| |
Authors: | Corinna Brandsch Diana Kappis Kristin Weiße Gabriele I Stangl |
| |
Institution: | (1) Institute of Agricultural and Nutritional Sciences, Martin-Luther-University Halle-Wittenberg, Von-Danckelmann-Platz 2, 06120 Halle (Saale), Germany; |
| |
Abstract: | Lupin protein is capable of reducing plasma lipids in hypercholesterolemic man and animals. Whether lipid-lowering properties
of lupin protein will be influenced by thermal treatment or by other nutrients has not been elucidated. In a two-factorial
study, rats were fed hypercholesterolemic diets based on high amounts of carbohydrates (HC) or fat (HF), which contained either
(20.4% of energy) untreated or thermally treated lupin protein (steam: 120 °C, 30 min) or casein as control protein. Lupin
protein lowered plasma lipid concentrations in rats fed the HF diet but not in those fed the HC diet (P < 0.05). Among rats fed the HF diet, plasma and VLDL triglyceride concentrations were lower in rats fed thermally treated
(−46% and −44%, P < 0.05) and untreated lupin protein (−47% and −46%, P < 0.05) than in those fed casein; whereas liver triglycerides were reduced only in rats fed untreated lupin protein (P < 0.05). Compared to casein, untreated lupin protein had slightly stronger cholesterol-lowering effects in plasma, LDL and
HDL (−34%, −37%, −35%; P < 0.05) than thermally treated lupin protein (−23%, −29%, −31%, P < 0.10). In conclusion, the lipid-lowering effect of lupin protein strongly depends on composition of the basal diet, and
thermal treatment is accompanied by a slight reduction of its hypocholesterolemic properties. |
| |
Keywords: | |
本文献已被 PubMed SpringerLink 等数据库收录! |
|