title: Inclusion of Hermetia illucens larvae meal on rainbow trout (Oncorhynchus mykiss) feed: effect on sensory profile according to static and dynamic evaluations.
abstract: BACKGROUND
  Diet implementation with insect meal has aroused increased attention in aquaculture considering the advantages of this new protein source. The effect of Hermetia illucens meal (HI) inclusion in diets on rainbow trout physical-chemical and sensory properties was evaluated. Three diets were prepared: HI0, HI25, HI50, with 0, 25 and 50% of HI replacing fish meal, respectively. Fillet sensory profiles were described by descriptive analysis and temporal dominance of sensation methods. Cooking loss, Warner-Bratzler shear force, proximate analysis, and fatty acid composition were also determined.
  
  
  RESULTS
  Diets significantly affected fillets sensory profile. Descriptive analysis indicated significant changes in perceived intensity of aroma, flavour and texture descriptors as a function of diet composition. Temporal dominance of sensation evaluations provided information on dominance and evolution of sensations perceived in fillets from different diets. The first sensations perceived as dominant were related to texture attributes, followed by flavours. Dominance of fibrousnesses decreased with the increase of HI in the diet. Boiled fish, algae flavours and umami taste clearly dominated the HI0 dynamic profile. The onset of metallic flavour dominance characterised HI25 and HI50. No differences in physical parameters were detected. Principal component analysis highlighted the relationship between sensory attributes and physico-chemical parameters.
  
  
  CONCLUSIONS
  The sensory description of fillets indicated that HI inclusion induces significant differences in the perceived profile. © 2016 Society of Chemical Industry.
authors.affiliation: Department of Agri-Food Production and Environmental Sciences (DISPAA), University of Florence, via delle Cascine 5, Firenze, Italy.
authors.forename: Monica
authors.initials: M
authors.lastname: Borgogno
authors.affiliation: Department of Agricultural, Food and Forest Systems Management (GESAAF), University of Florence, Via Donizetti 6, Firenze, Italy.
authors.forename: Caterina
authors.initials: C
authors.lastname: Dinnella
authors.affiliation: Department of Agri-Food Production and Environmental Sciences (DISPAA), University of Florence, via delle Cascine 5, Firenze, Italy.
authors.forename: Valeria
authors.initials: V
authors.lastname: Iaconisi
authors.affiliation: Department of Agricultural, Food and Forest Systems Management (GESAAF), University of Florence, Via Donizetti 6, Firenze, Italy.
authors.forename: Renzo
authors.initials: R
authors.lastname: Fusi
authors.affiliation: Department of Agri-Food Production and Environmental Sciences (DISPAA), University of Florence, via delle Cascine 5, Firenze, Italy.
authors.forename: Claudia
authors.initials: C
authors.lastname: Scarpaleggia
authors.affiliation: Department of Veterinary Medicine, University of Turin, Grugliasco, Turin, Italy.
authors.forename: Achille
authors.initials: A
authors.lastname: Schiavone
authors.affiliation: Department of Agricultural, Food and Forest Systems Management (GESAAF), University of Florence, Via Donizetti 6, Firenze, Italy.
authors.forename: Erminio
authors.initials: E
authors.lastname: Monteleone
authors.affiliation: Department of Agricultural, Forest and Food Science, University of Turin, Grugliasco, Turin, Italy.
authors.forename: Laura
authors.initials: L
authors.lastname: Gasco
authors.affiliation: Department of Agri-Food Production and Environmental Sciences (DISPAA), University of Florence, via delle Cascine 5, Firenze, Italy.
authors.forename: Giuliana
authors.initials: G
authors.lastname: Parisi
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D017756:Aquaculture; D004175:Diptera / Q000737:chemistry* / Q000378:metabolism; D005421:Flavoring Agents / Q000737:chemistry; D006801:Humans; D007814:Larva / Q000737:chemistry*; D017686:Oncorhynchus mykiss / Q000254:growth & development / Q000378:metabolism*; D017747:Seafood / Q000032:analysis*; D013649:Taste
chemical_list: D005421:Flavoring Agents
keywords: Hermetia illucens; descriptive analysis; insect feeding; rainbow trout; temporal dominance of sensation