title: Novel polyclonal-monoclonal-based ELISA utilized to examine lupine (Lupinus species) content in food products.
abstract: Sweet lupines are increasingly used in food production. Cause for concern has been expressed due to the increase in reported lupine-induced allergic incidents and the association between lupine and peanut allergies. In the current study, a polyclonal-monoclonal antibody-based sandwich ELISA for the detection of lupine proteins in foods was developed. The assay was sensitive to both native and processed proteins from Lupinus angustifolius and Lupinus albus and had a detection limit of 1 mug/g. Intra- and interassay coefficients of variation were <5 and <17%, respectively. A selection of 112 food samples, both with and without lupine declaration, was evaluated for their content of lupine. The data showed that the majority were in agreement with the respective labeling. However, some inconsistency was seen, typically in bread/rolls and soy flours.
authors.affiliation: National Veterinary Institute, P.O. Box 8156 Dep., N-0033 Oslo, Norway. lise.holden@vetinst.no
authors.forename: Lise
authors.initials: L
authors.lastname: Holden
authors.forename: Lena Haugland
authors.initials: LH
authors.lastname: Moen
authors.forename: Gaynour B G
authors.initials: GB
authors.lastname: Sletten
authors.forename: Maaike M B W
authors.initials: MM
authors.lastname: Dooper
mesh_terms: D000911:Antibodies, Monoclonal; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods*; D005504:Food Analysis / Q000379:methods*; D031297:Lupinus / Q000737:chemistry*; D010940:Plant Proteins / Q000032:analysis*; D012680:Sensitivity and Specificity
chemical_list: D000911:Antibodies, Monoclonal; D010940:Plant Proteins