title: Flavor improvement in pork from barrows and gilts via inhibition of intestinal skatole formation with resistant potato starch.
abstract: Skatole originates from microbial processing of tryptophan in the large intestine of pigs and accumulates in adipose tissue. Formation may be inhibited by the anti-apoptotic function of butyrate formed out of raw potato starch. Two groups of pigs (each consisting of gilts and barrows) were fed from 30 to 110 kg life weight either a conventional diet (controls; n = 35) or an isocaloric diet containing 300 g of raw potato starch/kg of body weight (RS; n = 34). Skatole concentrations were measured in colon content, blood, and adipose tissue. Odor of cooked meat samples was evaluated by a test panel. RS reduced concentrations in colon content and blood plasma (P < 0.001). Back fat concentrations were decreased significantly from 25 to 1.40 ng/g (barrows; P < 0.001) and from 40 to 9 ng/g (gilts; P < 0.001). Odor rating (scale of 1-5 from very unpleasant to very pleasant) was 3.07 for low skatole concentrations and 2.66 for both medium and high skatole concentrations (P < 0.05).
authors.affiliation: Institut für Tierhaltung und Tierzüchtung, Universität Hohenheim, Stuttgart, Germany.
authors.forename: Dorothea
authors.initials: D
authors.lastname: Lösel
authors.forename: Markus
authors.initials: M
authors.lastname: Lacorn
authors.forename: Dirk
authors.initials: D
authors.lastname: Büttner
authors.forename: Rolf
authors.initials: R
authors.lastname: Claus
mesh_terms: D000821:Animal Feed; D000818:Animals; D004032:Diet; D004040:Dietary Carbohydrates / Q000008:administration & dosage; D005260:Female; D007413:Intestinal Mucosa / Q000378:metabolism; D007422:Intestines / Q000382:microbiology; D008297:Male; D008460:Meat; D009812:Odorants / Q000032:analysis; D009919:Orchiectomy; D012862:Skatole / Q000037:antagonists & inhibitors* / Q000378:metabolism; D011198:Solanum tuberosum / Q000737:chemistry; D013213:Starch / Q000008:administration & dosage*; D013552:Swine; D013649:Taste
chemical_list: D004040:Dietary Carbohydrates; D013213:Starch; D012862:Skatole