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Exploring Sensory Profiles of Hard Clams: A Comprehensive Study by University of Florida

This study by Laura Garrido, Leslie Sturmer, and Steve Otwell from the University of Florida presents a science-based tool for the characterization of hard clams and mollusks through sensory profiles. It evaluates various attributes such as appearance, aroma, flavor, texture, and mouthfeel, aiding commercial practices and enhancing buyer choices. Nutritional analyses reveal hard clams are rich in essential vitamins and minerals. This research influences market values and provides insights into quality standards across various harvesting locations.

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Exploring Sensory Profiles of Hard Clams: A Comprehensive Study by University of Florida

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  1. Romancing Hard Clams The difference is in the profile ! Laura Garrido, Leslie Sturmer and Steve Otwell University of Florida

  2. Sensory Profiles forProduct Characterization • Non-bias, science-based tool to help direct commercial practices, buyer choices and market values for hard clams and all mollusks • Evaluations:Attributes: • Appearance  Quality • Aroma  Shelf-Life • Basic Tastes  “Appellations” • Flavor and Aftertastes • Texture and Mouth-feels

  3. Wellfleet, MA Milford, CT Greenwich, CT Oyster Bay, Long Island Oceanville, NJ Cherrystone, VA McClellanville, SC Townsend, GA University of Florida, FL Cedar Key, FL

  4. Science-based Approach •  Pre-screened (25) & selected panelists (10) •  Train and Align communications & etiquette •  Experience product types •  Specific product orientations •  Develop specific products standards •  Present a wide range of the products •  Calibrate and Recalibrate

  5. Evaluation Tools “Standards”

  6. Color Scale for the Shell Grays Browns Brown & Orange

  7. Color Scales for the ‘Meat’ Gray Pink Yellow White Tan Gray White Beige Orange/Peach

  8. Standards for Volume of ‘Meat’’ Partial Cover (5) Full Cover (10)

  9. Other Observations Yellow Siphon Mud & Grit

  10. Aroma • Briny • Seaweed • Metallic

  11. Basic Taste • Salty • Umami • Sweet • Sour • Bitter

  12. Flavor • Seaweed • Chicken-liver (iron) • Earthy

  13. Metallic • Astringent Aftertaste

  14. Texture & Mouthfeel • Firmness  Detect Grit • Chewiness  Detect Mud • [ brittle shell ]

  15. Wellfleet, MA Milford, CT Greenwich, CT Oyster Bay, Long Island Oceanville, NJ Cherrystone, VA McClellanville, SC Townsend, GA Cedar Key, FL University of Florida

  16. Nutritional Value - Raw Hard Clams Composition per 100 grams (3.5 ounces; 10 – 12 clams) Sources: Sullivan & Otwell, 1992

  17. cyanocobalamin Nutritional Value - Raw Hard Clams Rich source of required vitamins 1 dozen clams provide over100% of the daily advised intake of vitamin B-12 which is necessary for normal function of the nervous system and for production of red blood cells

  18. Nutritional Value - Raw Hard Clams Minerals per 100 grams (3.5 ounces) Sources: Sullivan & Otwell, 1992

  19. Nutritional Value - Raw Hard Clams Mineral Comparisons (mg)

  20. Aphrodisiacs ?

  21. Wellfleet, MA Milford, CT Greenwich, CT Oyster Bay, Long Island Oceanville, NJ Cherrystone, VA McClellanville, SC Townsend, GA University of Florida, FL Cedar Key, FL Overall Sensory Profile for Hard Clams

  22. Wellfleet, MA Milford, CT Greenwich, CT Oyster Bay, Long Island Oceanville, NJ Cherrystone, VA McClellanville, SC Townsend, GA University of Florida, FL Cedar Key, FL Overall Sensory Profile for Hard Clams

  23. Wellfleet, MA Milford, CT Greenwich, CT Oyster Bay, Long Island Oceanville, NJ Cherrystone, VA McClellanville, SC Townsend, GA University of Florida, FL Cedar Key, FL Overall Sensory Profile for Hard Clams A = average for all clam samples H = above the average L = below the average D = depends on source or sample

  24. Harvest Locations / State

  25. Wellfleet, MA Milford, CT Greenwich, CT Oyster Bay, Long Island Oceanville, NJ Cherrystone, VA McClellanville, SC Townsend, GA University of Florida, FL Cedar Key, FL Romance the Clams

  26. Wellfleet Shellfish Co. Ocean Rich Distributors Intracoastal Aquaculture Cherrystone Aqua-Farms Livingston’s Bulls Bay Seafood Sapelo Seafarms / Cedar Key Aquaculture Association Thank You

  27. Otwell@ufl.edu University of Florida

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