Simplifier

Okay, let's break this down simply! Think of cabbage as having tiny, tiny little packets inside it that hold a certain smell. When the cabbage is raw, most of these smelly packets are tightly sealed, so you don't notice much of a smell. When you start cooking the cabbage, the heat begins to gently open some of these packets. It's like opening a few little boxes, and some of the smell starts to drift out into the air. That's why cooked cabbage has its own unique smell. Now, if you keep cooking the cabbage for a really long time, the heat keeps working on it. More and more of these tiny packets get opened up, releasing even more of their smell. Plus, some of the smelly bits inside actually start to change into *new* kinds of smelly bits that are much, much stronger! So, the longer the heat works its magic, the more of these strong-smelling bits get released and even transform, making the overall smell much more noticeable and powerful.

Aroma Compound Researcher

The intensified aroma of foods like cooked cabbage after prolonged heating is primarily a consequence of the thermal degradation of specific precursor compounds into highly volatile sulfur compounds. Cabbage, a cruciferous vegetable, contains glucosinolates, which are sulfur-containing glycosides. While initial enzymatic breakdown (by myrosinase) upon cutting or light cooking can yield some volatile isothiocyanates, prolonged heat drives a different set of chemical reactions. Extended thermal processing causes the non-enzymatic breakdown of these glucosinolates and other sulfur-containing amino acids. This thermal degradation generates a diverse array of new, potent volatile sulfur compounds. Unlike the enzymatic products, these thermally derived compounds often possess significantly lower odor thresholds and contribute to the characteristic "strong" or sometimes "overcooked" aroma. Key volatile compounds formed during prolonged heating include hydrogen sulfide (H2S), dimethyl sulfide (DMS), dimethyl disulfide (DMDS), and methanethiol (methyl mercaptan). These molecules are known for their distinct, often pungent or sulfurous notes. As heating continues, the concentration of these highly odorous compounds accumulates, leading to a progressively stronger and more pervasive smell that

Organic Chemist

The initial cooking of cabbage involves the thermal degradation of precursor molecules, primarily glucosinolates. These sulfur-containing compounds are hydrolyzed by enzymes or thermally decomposed into various isothiocyanates and nitriles, which contribute to the characteristic initial aroma. However, prolonged heating facilitates further thermal decomposition and rearrangement reactions. This process generates and accumulates highly volatile, low molecular weight sulfur compounds such as thiols (e.g., methanethiol), dialkyl sulfides (e.g., dimethyl sulfide), and disulfides (e.g., dimethyl disulfide). These molecules possess significantly lower odor thresholds and more potent, often pungent, olfactory characteristics compared to their precursors, resulting in a noticeably stronger smell.

Flavor Chemist

From a chemical perspective, the intensification of aroma in foods like cooked cabbage with prolonged heating is a direct consequence of molecular degradation and transformation. Cabbage, along with other cruciferous vegetables, contains a class of compounds known as glucosinolates. These are relatively stable and contribute little to the initial aroma. However, under the influence of heat, and often with the catalytic action of enzymes like myrosinase, these glucosinolates undergo hydrolysis. This breakdown process releases a suite of highly volatile sulfur-containing compounds, such as hydrogen sulfide, dimethyl disulfide, and dimethyl trisulfide. These molecules are potent odorants, detectable by the human olfactory system at extremely low concentrations. As heating continues, more glucosinolates are hydrolyzed, and further chemical reactions can occur among the released sulfur compounds, potentially forming even more complex and pungent volatile molecules. This continuous generation and accumulation of these highly odorous compounds is what leads to the perception of a significantly stronger, and often less desirable, aroma profile over time.

Food Scientist

The intensified aroma observed in cooked cabbage after prolonged heating is a direct consequence of the thermal degradation of specific sulfur-containing compounds. Cabbage, like other cruciferous vegetables, is rich in glucosinolates

Points of agreement

• Prolonged heating causes chemical degradation or transformation of compounds within the cabbage.
• The intensified smell is primarily due to the breakdown of sulfur-containing precursor compounds, specifically glucosin