Sensory Assessment of Fish and Chicken Protein Hydrolysates. Evaluation of NMR Metabolomics Profiling as a New Prediction Tool

Silje Steinsholm*, Åge Oterhals, Jarl Underhaug, Ingrid Måge, Anders Malmendal, Tone Aspevik

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

Nuclear magnetic resonance (NMR) metabolomics profiling was evaluated as a new tool in sensory assessment of protein hydrolysates. Hydrolysates were produced on the basis of different raw materials (cod, salmon, and chicken), enzymes (Food Pro PNL and Bromelain), and hydrolysis time (10 and 50 min). The influence of raw material and hydrolysis parameters on sensory attributes was determined by traditional descriptive sensory analysis and 1H NMR spectroscopy. The raw material had a major influence on the attribute intensity and metabolite variation, followed by enzyme and hydrolysis time. However, the formation of bitter taste was not affected by the raw material. Partial least-squares regression (PLSR) on 1H NMR and sensory data provided good models (Q2 = 0.55−0.89) for 11 of the 17 evaluated attributes, including bitterness. Significant metabolite−attribute associations were identified. The study confirms the potential prediction of the sensory properties of protein hydrolysates from cod, salmon, and chicken based on 1H NMR metabolomics profiling.
Original languageEnglish
JournalJournal of Agricultural and Food Chemistry
Volume68
Issue number12
Pages (from-to)3881-3890
Number of pages10
ISSN0021-8561
DOIs
Publication statusPublished - 2 Mar 2020

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