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Dietary fiber-rich colloids from apple pomace extraction juices do not affect food intake and blood serum lipid levels, but enhance fecal excretion of steroids in rats.
J Nutr Biochem 2004; 15(5):296-302JN

Abstract

The aim of this study was to investigate the effects of colloids isolated from apple pomace extraction juices (so-called B-juices) produced by enzymatic liquefaction on food intake, levels of blood serum lipids, and fecal excretion of bile acids (BA) and neutral sterols (NS) in vivo. Ten male Wistar rats per group were fed diets containing either no apple dietary fiber (DF) (control), a 5% supplementation with juice colloids, or an alcohol-insoluble substance (AIS) from apples for 6 weeks. Apple DF in diets led to lower weight gain in rats fed with B-juice colloids (P< 0.05). For these rats, food intake was not affected but was highest with feeding AIS (10% more than control) to cover energy requirements. The supplementation of diet with apple DF from extraction juices or AIS had minor effects on blood serum lipids. In rats fed either juice colloids or AIS, up to 30% (5.31 micromol/g dry weight) and 88% (7.69 micromol/g dry weight) more primary BA were excreted in feces, respectively, as compared to that in the control group (4.10 micromol/g dry weight) (P < 0.05). In cecal contents, a 15% (juice colloids) to 37% (AIS) increase in primary BA was found. In contrast, concentrations of secondary BA were lower in feces of test groups (P < 0.05). Excretion of total BA and NS was higher in rats fed apple DF (P < 0.05). Our study is the first to prove that there are beneficial physiologic effects of apple DF isolated from pomace extraction juices produced by enzymatic liquefaction. These results may help to develop such innovative juice products that are rich in DF of fruit origin for diminishing the lack of DF intake.

Authors+Show Affiliations

German Institute of Human Nutrition, Department of Food Chemistry and Preventive Nutrition, D-14558 Bergholz-Rehbrücke, Germany. sembries@mail.dife.deNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15135154

Citation

Sembries, Sabine, et al. "Dietary Fiber-rich Colloids From Apple Pomace Extraction Juices Do Not Affect Food Intake and Blood Serum Lipid Levels, but Enhance Fecal Excretion of Steroids in Rats." The Journal of Nutritional Biochemistry, vol. 15, no. 5, 2004, pp. 296-302.
Sembries S, Dongowski G, Mehrländer K, et al. Dietary fiber-rich colloids from apple pomace extraction juices do not affect food intake and blood serum lipid levels, but enhance fecal excretion of steroids in rats. J Nutr Biochem. 2004;15(5):296-302.
Sembries, S., Dongowski, G., Mehrländer, K., Will, F., & Dietrich, H. (2004). Dietary fiber-rich colloids from apple pomace extraction juices do not affect food intake and blood serum lipid levels, but enhance fecal excretion of steroids in rats. The Journal of Nutritional Biochemistry, 15(5), pp. 296-302.
Sembries S, et al. Dietary Fiber-rich Colloids From Apple Pomace Extraction Juices Do Not Affect Food Intake and Blood Serum Lipid Levels, but Enhance Fecal Excretion of Steroids in Rats. J Nutr Biochem. 2004;15(5):296-302. PubMed PMID: 15135154.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dietary fiber-rich colloids from apple pomace extraction juices do not affect food intake and blood serum lipid levels, but enhance fecal excretion of steroids in rats. AU - Sembries,Sabine, AU - Dongowski,Gerhard, AU - Mehrländer,Katri, AU - Will,Frank, AU - Dietrich,Helmut, PY - 2003/06/10/received PY - 2003/11/08/revised PY - 2003/12/31/accepted PY - 2004/5/12/pubmed PY - 2004/12/16/medline PY - 2004/5/12/entrez SP - 296 EP - 302 JF - The Journal of nutritional biochemistry JO - J. Nutr. Biochem. VL - 15 IS - 5 N2 - The aim of this study was to investigate the effects of colloids isolated from apple pomace extraction juices (so-called B-juices) produced by enzymatic liquefaction on food intake, levels of blood serum lipids, and fecal excretion of bile acids (BA) and neutral sterols (NS) in vivo. Ten male Wistar rats per group were fed diets containing either no apple dietary fiber (DF) (control), a 5% supplementation with juice colloids, or an alcohol-insoluble substance (AIS) from apples for 6 weeks. Apple DF in diets led to lower weight gain in rats fed with B-juice colloids (P< 0.05). For these rats, food intake was not affected but was highest with feeding AIS (10% more than control) to cover energy requirements. The supplementation of diet with apple DF from extraction juices or AIS had minor effects on blood serum lipids. In rats fed either juice colloids or AIS, up to 30% (5.31 micromol/g dry weight) and 88% (7.69 micromol/g dry weight) more primary BA were excreted in feces, respectively, as compared to that in the control group (4.10 micromol/g dry weight) (P < 0.05). In cecal contents, a 15% (juice colloids) to 37% (AIS) increase in primary BA was found. In contrast, concentrations of secondary BA were lower in feces of test groups (P < 0.05). Excretion of total BA and NS was higher in rats fed apple DF (P < 0.05). Our study is the first to prove that there are beneficial physiologic effects of apple DF isolated from pomace extraction juices produced by enzymatic liquefaction. These results may help to develop such innovative juice products that are rich in DF of fruit origin for diminishing the lack of DF intake. SN - 0955-2863 UR - https://www.unboundmedicine.com/medline/citation/15135154/Dietary_fiber_rich_colloids_from_apple_pomace_extraction_juices_do_not_affect_food_intake_and_blood_serum_lipid_levels_but_enhance_fecal_excretion_of_steroids_in_rats_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0955286304000208 DB - PRIME DP - Unbound Medicine ER -