Wednesday, February 11th, 2009

Bruce Bryan demonstrated a glowing cocktail drink (top left), and tempted us with fluorescent cake frosting (top right). The chocolate surprise boxes included a lollipop (bottom left) and I was quite busy sucking the lollipop, listening to the translation of the Belgian/French/Spanish contributions, taking notes and photographing at the same time (bottom right).
The chocolate surprise box was one of the highlights at The Flemish Primitives that I’ve blogged about three times already. As I promised you in the last post I’d come back to the lollipop that was included in the box. Between chocolates number 2 and 3 Bruce Bryan entered the stage. The lights went off, we were instructed to suck intensely on the lollipos and then – when I took the lollipop out of my mouth it was glowing! (more…)
Tags: bioluminescence, Bruce Bryan, coelenteramide, coelenterazine, glowing food, green fluorescent protein, kitchen physics, light, luciferase, luciferin, mechanism, molecular gastronomy, nobel prize, the flemish primitives, travel report
Posted in books, molecular gastronomy, science, websites | 12 Comments »
Wednesday, February 4th, 2009

This month’s round of “They go really well together” (TGRWT #15) is hosted by Mexmix and foods to pair this time are dark chocolate and smoked salmon. As usual you can find instructions on how to participate in the announcement post. Don’t forget to check out Rob’s summary of the malt and soy sauce round.
Tags: agar, chocolate, molecular gastronomy, salmon, smoked salmon
Posted in flavor pairing, hydrocolloids, molecular gastronomy, recipe, TGRWT | 2 Comments »
Monday, February 2nd, 2009

Can the natural process of aging wine in corked bottles be accelerated?
I recently found an interesting article on how an electric field can be used for maturation of wine (New Scientist news coverage of the article). Applying a AC field of 600 V/cm for 3 minutes resulted in an accelerated aging of wine and according to the authors of the paper, it made “harsh and pungent raw wine become harmonious and dainty”. They observed changes in concentrations of higher alcohols, aldehydes, esters and free amino acids. But I was quite surprised that they don’t say anthing about astringency and polyphenols (tannins). I’d expect some changes there as well, but alas it’s so much more difficult to measure the polyphenols than the low molecular compounds. A sensory panel identified both positive and negative effects of the electric treatment which helped identify an optimum treatment. Apparently several Chinese wine manufacturers are testing the technology on a pilot scale now. Many people have a romantic impression of how wine is made, but the extensive catalogues of “corrective chemicals” available to the modern wine maker should perhaps make you reconsider the romatic idea of wine making. Even professor Hervé Alexandre at the University of Burgundy has given the technology a thumbs up: “Using an electric field to accelerate ageing is a feasible way to shorten maturation times and improve the quality of young wine”. Who knows – maybe you’ll soon be drinking a wine that has been zapped?
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Tags: AC, ageing, aging, astringency, catalysis, desulfuration, desulfurization, electric field, everyday science, maturation, molecular gastronomy, polyphenos, stainless steel, sulfur, tannins, wine
Posted in equipment, experiments, molecular gastronomy, science, tips & tricks | 11 Comments »