Beverage
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What is Off-Odor?
What is off-odor? The true answer is you’ll know it when you smell it! Doesn’t have to stink like dead fish or 2 week old ground beef left in the refrigerator, although those certainly are obnoxious. Off-odor can be a nice fresh floral smell, like that of a rose, only the rose aroma originates from […]
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Measurement of Organic Impurities in Water
Approximately 10g of liquid sample (sample A, B, C, D, E, F, G, H, I and J) were placed in 40mL clear vials and limonene was extracted using SBSE, or Twister, at room temperature for 90min. Twisters were heated to 280oC for 3 minutes inside a thermal desorption unit (TDU). The TDU transfer temp was […]
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Carbonated beverage sulfur off-odor
A sulfur off-odor was reported in specific lots of diet cola. The client was unable to successfully identify the chemical nature of the odorant and samples were sent to VAC for further analysis. Upon receipt at the VAC lab, sulfur odor was noticeable upon simple organoleptic analysis of the diet cola. A series of extraction […]
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Food and Beverage Odor Amelioration Efficacy
Measuring the effect of odor ameliorating “actives” in foods: Aqueous solutions that contained food related odors identified as commercially important were treated separately with ameliorating substances. How well the added substances worked to decrease odor in a model solution was determined by measuring headspace concentrations of odorants before and after treatment utilizing headspace stir bar […]
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Statistics of Sensory Assessment: Cohen’s Kappa
Statistics of Sensory Using people as diagnostic sensors produces more variation than instrumental methods. There are situations where the benefits of human-based measures outweigh their inconsistency. This is particularly true for aromas and flavors. Choosing, training and aligning panelists is a big investment. If sensory activities are key to your business success, you need to [...] -
Bottled Water Odor
Bottled Water Odor Bottled drinking water sales topped $12 billion in the United States recently, with steady growth of 6% per year. Consumers view bottled water as a healthy alternative to other drinks. Recent news articles place bottled water’s reputation for consistent quality at risk. A top contributor to unhappiness for many consumers lies in [...]
