4.7 Article

Sensory Wheel and Lexicon for the Description of Cold-Pressed Hemp Seed Oil

Journal

FOODS
Volume 12, Issue 3, Pages -

Publisher

MDPI
DOI: 10.3390/foods12030661

Keywords

quality control; color; aroma and flavor; sensory evaluation sheet; descriptive analysis

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Cold-pressed hemp seed oil (CP-HSO) is gaining popularity for its appeal and nutritional profile. The sensory quality of CP-HSO depends on seed quality, processing, and storage conditions. This study developed a standardized methodology to evaluate and describe the sensory quality of HSOs, including a vocabulary with 44 attributes, a sensory wheel, and a sensory profile sheet. The study represents the first attempt to standardize the sensory quality and terminology of HSO.
Cold-pressed hemp seed oil (CP-HSO) has become available on the market and is gaining popularity mainly for its appeal and nutritional profile. The sensory quality largely depends on seed quality and processing as well as oil storage conditions. Given the native nature of the product, obtained by cold-pressing, the development of a standardized methodology to evaluate and describe the sensory quality of HSOs is of the utmost importance. To this aim, 16 commercial HSOs were evaluated, covering the main differences in brands and sales channels. A trained panel developed a vocabulary to describe the HSO profile consisting of 44 attributes, and a practical sensory wheel was proposed to classify attributes in different clusters and according to sensory modality. A sensory profile sheet was developed including two color descriptors (yellow, green), seven main positive (sunflower/pumpkin seeds, nutty, toasted nutty, hay, sweet, bitter, and pungent), several secondary positive (herbs, coffee, tobacco, etc.), four main defects (rancid, paint, burnt, and fish), and other secondary negative descriptors (boiled vegetables, cucumber, etc.). Subsequently, specific training of the panelists was carried out, and a satisfactory performance level was reached. This study represents the first attempt to standardize the sensory quality and terminology of HSO.

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